Windows Support Forum

Memory Speed Issue

Q: Memory Speed Issue

Hi guys after installing some new RAM i checked CPU-Z to see if all was ok, and it doesn't seem to be.

I bought some Crucial Ballistix 8Gb 1866MHz, however is doesn't seem to be running at 1866 more like 667MHZ.

I have a Gigabyte GA-970A-DS3 and a AMD FX-4100

Is there way i can force the speed on the RAM to 1866?

Any input is greatly appreciated.


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Preferred Solution: Memory Speed Issue

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A: Memory Speed Issue

CPU-Z reports the clock frequency of the RAM. DDR (DDR2, DDR3) transfer data twice per clock tick, so CPU-Z reports 667MHz for DDR3-1333.

Most motherboards seem to run DDR3-1333 and up at DDR3-1333 by default. To get the higher frequency, you'd either need to set the BIOS to use XMP, or manually set the RAM frequency and timings.
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Obviously higher is better, which is more important? Would a card with less memory (64MB) and higher speeds run better than a card with more memory (128 or 256MB) and lower speeds? If speeds are = then a card with more memor would work better, correct?

A:Core Speed and Memory Speed

List the models you are comparing to.
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A:Moving at turtle speed - Internal Network issue or DSL issue?

If you have more than one computer, and all exhibit the same symptoms, it's hard to believe they're all bad.
Pick one that doesn't exhibit any other issues and do this:

Register at DSLReports and run their Line Quality Tests. It's best to run this test with a direct wired connection to eliminate any wireless issues from the results. It's useful many times to run this test several times, and we'd like to see each of the results. Post the results link from the top of the test display page for each test run here.

The link to post is near the top of the page and looks like:

If you wish to post this result to a forum, please copy/paste this URL <- sample only, yours will obviously be different!
and your IP will be disguised.

Copy/paste that link here.

Note: You will have to enable PING (ICMP) request response either in your router (if you have one), or in your computer's firewall for direct modem connections. This is very important to get the most important part of the test to run.
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Hi I speed wrong - Memory memory??? am hoping you can help with an issue I am having with memory in my sons Memory speed - wrong memory??? PC It does not seem to be running as good since I installed gig of memory Motherboard - ASUSTeK Computer INC M A L-M USB Processor - AMD FX- GHz It had gig stick of Kingston KVR D N but I have upgraded to gig x gig of Corsair Vengeance MHz DDR Blue CMZ GX M A C B OK When I was looking into this upgrade I read somewhere that if you have an AMD FX processor then this board will manage the Mhz modules When I run tests I get a third of that speed If I am reading it right Geekbench - Memory -Memory Performance Stream -Memory Bandwidth Performance CPU-Z - DRAM Frequency Mhz IS THIS WHAT SHOULD BE READING Mhz NB Frequency Is this the wrong memory fr this board There are no drivers for memory are there Thanks in advance

A:Memory speed - wrong memory???

CPUz is showing it running at 1333. The ram is DDR (double data rate) you double the figure you see in CPUz. Does your bios allow you to set the frequency, voltage and timings? Please Post a screenshot of CPUz showing the memory tab and the SPD tab.
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A:Odd memory issue? HD space issue? Also, can't update GPU driver (GW2 crashing)

Unfortunately, though I thought I did, I have no images of the odd cyan/yellow graphics glitch, and I have no way of getting one (google didn't turn up any that looked the same as mine, granted some were similar).
Edit - I also noticed after re-enabling page memory on my primary drive after freeing up some space, that in the error logs, the amount of paged memory in use is for some reason higher. I can't imagine why this is, but maybe I don't understand the process.
*--> System Memory <--*
Physical:   845MB/ 2047MB  41%
Paged:     5375MB/ 7009MB  76%
Virtual:    822MB/ 2047MB  40%
Load: 58%
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Hi there!
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A:Memory speed is not what it should be

Thank You. very informative. I am so far behind on all of this I don't think i will ever catch up.
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It is marked:
Compaq Computer Corporation
Replace with Compaq Spare

I can't find a document in the 'net that tells me for sure. I must be certain and exact. If it is PC100, then it might not work with PC133. If it is PC133, then it might not work with PC100.

Yes, I know, PC133 should work where PC100 is accepted; but, it doesn't always.

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A:G 50 30 memory speed

Hi Dpota,
Welcome to Lenovo Forums.
1333 MHz is the effective clock rate. DDR means double data rate, data is transferred on both the rising and falling edges of each clock making 666 MHz effectively the same as 1333. CPU-Z is showing you the actual clock rate. That's perfectly normal you have nothing to worry about and the RAM is working correctly at the right speed.
(666MHz) 9-9-9-24 is the delay between certain memory operations (measured in clocks). Lower numbers are better, but they are also relative to clock rate. 9-9-9-24 is a little slow for 1333 MHz, but you should not try changing it as it can lead to system instability.
Let us know how you get on.
Tap that Kudos button if I helped  If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"!
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A:Memory Speed?

That's what DDR (double data rate) is. They are running as they should.
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A:Memory Speed?

I would suggest taking the case off the computer and making sure that all components are reseated correctly. It could be that while you were removing and reseating the RAM a component was jiggled and is not making the proper contact. Also, did you ground yourself while removing the RAM? A wrist strap is good for this, or at least making contact with the chassis before going inside.
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Is PC2700 faster than PC2100 memory?


A:Memory Speed

Get your answer here:
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What program will show my memory speed? Just want to insure what I set in the bios is what is actually doing.

A:Memory speed

Hello Bearcatrp

CPUz ( will show you your memory speed.

Hope that helps!
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A:Memory speed

The motherboard can support a certain maximum speed but if your CPU can't run at that speed it will run at a lower speed.
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A:New memory speed is off

I know some like gigabyte hide those setings, and pressing CTRL F1 will bring them up, some dont allow you to alter them at all, if you have the manual for your motherboard read that, it should tell you if you can adjust them or not, if you dont have the manual post the model of the motherboard and i'll do a search for it and let you know if it's possible.
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A:Memory speed for CPU?

That looks alright.. Just make sure you have a good HSF to handle the extra heat.

You *might* want to look into a liquid-cooling system.
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A:Memory speed

First question, what speed is the ram that was in there originally? If the original 1Gb of ram is PC2700 ram, your motherboard will automatically underclock the new ram in order to match the old.

If your old ram is also PC3200 ram, then please give us your full system specs (motherboard make/model in specific)
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A:Memory Speed, is this Right?

It's 200Mhz clock speed. The 400Mhz is 2x200Mhz which is what PC3200 DDR is.
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Re. a Duron Mainboard K7S5A - (Win 2k)

I have been discussing with a friend the upgrading of memory on my new Duron Mainboard - She wonders about the following, and says:

It depends whether we can take DDR-266, which runs then at 133mhz, and run it at 100.

The duron runs the memory at 100, but if you wanted to upgrade to an athlon later, you would need to run it at 133.

100 mhz memory cannot run at 133. We need to find out if 133 memory will run at 100.

Does anybody know, please? Thank you for any advice you may be able to give.


A:A question about memory speed

There are two different versions for your board 1.x and a 3.x It appears either one support your need. Attached is screenshot of the users manual for the 3.x but the 1.x had the same Ram support.

Also here are your options from

Rev 1.x
or Rev 3.x

If you wish to download the users manual for your board then you need to locate the revision number on then go
Here to select your download.

Hope that helps.

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Hi All,

I currently have 3 DIMMS installed and wasn't aware till recently that the originally was 100Mhz and the two I added later were 133MHz.

The CLK speed is set to 100MHz and I've not had any problems but when the original 100MHz DIMM became unseated my BIOS recommended changing the clock speed to 133 (I hadn't immediately noticed the loss of memory!).

My question is, if I add more memory at say 400Mhz will this give me any problems?

Do you just set the clock speed to the lowest DIMM speed?


PS CPU is P3 100Mhz multiplied x 5.5.

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this is what i have for ram... in my system right now
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slot 2: PC3-12800 (800 MHZ)
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A:Question about Memory speed in my pc

For sure since the two faster sticks will have to downclock to match the slower stick. Better yet, buy another 2 GB of the faster stick for optimum performance.
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A:mis matching memory speed

should be okay, i'd put the 128meg inthe first slot and put the 64's in the last two slots. its only edo ram that they have to be the same, sd ram it doesn't matter.
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nbsp nbsp Note Continued from - What's your memory assessment speed [2] speed? your What's assessment memory I decided to What's your memory assessment speed? [2] open a thread to show what people are getting with there current memory settings what improvements are shown with various timing tweaks speed settings ect to access this you MUST have UAC turned off OR choose 'Run as administrator' open the command prompt window first either by opening 'Run' from the start menu and typing 'cmd' --this will only work if UAC is deactivated-- or go to accessories in your start menu locate 'Command Prompt' right click select 'Run as administrator' once opened simply type winsat mem Note it will not matter what the command path is set to i am currently facing issues with my DDR and being stuck at around mb s any suggestions why feel free Dual channel and tri channel play a huge factor in this benchmark so keep that in mind before comparing with others so here is my winsat score with the current timings post em up and let other people know what basic timings and MHz your set at DDR MHz ect and channel configuration dual tri channel your using thanks to smarteyeball for pointing out the admin trick with cmd exe Rick

A:What's your memory assessment speed? [2]

I don't know what it means but this is what I got.
icrosoft Windows [Version 6.1.7601]
opyright (c) 2009 Microsoft Corporation. All rights reserve

:\Windows\system32>WINSAT MEM
indows System Assessment Tool
Running: Feature Enumeration ''
Run Time 00:00:00.00
Running: System memory performance assessment ''
Run Time 00:00:05.15
Memory Performance 27971.93 MB/s
Total Run Time 00:00:06.40

I also don't know of any program that will read ram temps. I use a Infrared Thermometer to read temps.
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Everest 1.10 shows the currently installed memory as PC2700 166Mhz DDR SDRAM (2 x 256MB modules) but when I look online for compatible memory the speed for PC2700 modules is shown as 333Mhz.

Is this because the 166Mhz refers to the rate/speed per channel and is doubled up for DDR modules?

Will modules advertised as 333Mhz be compatible?

Thanks for any advice offered.


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In theory my 'project' notebook, having i945GM chipset, is supposed to run the memory bus at either/or 266MHz or 333MHz. I have the two slots populated with matched 1GB 667MHz ddr.
When I pull up SIW to check, it says "DRAM Frequency 266.0"
It shows the modules themselves as "667 MHz"

So I go run MEMTEST 4.0, and it shows:

RAM Speed = 221MHz [DDR445]
FSB 133Mhz
CAS 4-4-4-12

no errors....

Can someone tell me what's going on here?
the Cpq BIOS/Setup is typically barren... no options to speak of, nothing at all about the various clockings...

A:What speed is my Memory REALLY running at??

please use cpuz and take screen shot on memory and spd tab.
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OK, we have two sticks of Ram. One is PC3200 with a cl of 3 and the other is PC2700 with a cl of 2.5.....

which stick will perform faster?

A:memory speed question

The PC3200 is the faster but if your MB doesn't support it - ie. if it only goes as high as PC2700 then the faster mem would do you no good really.
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A:Speed the USB flash memory up

NO. Most likely you have it inserted to a USB 1.1 slot when it needs USB 2.0.
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A:AMD memory speed issues

get this


click the memory tab and spd tab take two screenshots and post them here

if there is nothing in the spd tab select a differant slot from the drop down menu
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Just a curious question;

I ran winsat mem a couple of weeks ago and got a 13600+ read.

Ran it today and got 15985 read.

Only system change was adding a Radeon 6670 Video card.

Does memory speed change this much ? What might cause the disparity ?

A:Memory Assessment Speed

I assume prior to the HD 6670 you were using the onboard video, if so that would be where the difference comes from. The onboard video shares/gets it memory from the system memory (up to 512 MB), and it got freed up when you added the video card.

I got the same thing if I enabled the onboard video on my old computer (used for a third monitor). The WEI memory score was/is higher when the onboard is enabled and lower with it disabled.
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A:Memory Speed Question

sounds like they're running below spec'd to me,
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A:CPU - Memory - Speed Matching?

you could use any speed memory your board can take with any speed processor your motherboard can take. although if the bus speed of the memory is slower than the processor bus your processor will be underclocked to match the memory, the board might run them out of sync, or you will need to overclock the memory(which i am not recommending) to match the processor bus. if the memory speed is faster than the processor bus it will be underclocked to match the processor. your best be is to get the DDR 333 or the DDR 400.
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I have a pair of 512MB Corsair XMS on my Asus MB, AMD X2 4200. My comp boots really slow. The bar on the windows splash makes at least 15 laps if not more. I have de-fragged and cleaned my hard disks.

How do I check that my memory is currently set to the right speeds?

The MB doesn't have a splash during boot and i cant find anything in the control panel that will give me this info.


A:Checking Memory Speed

Everest free under Motherboard, SPD and also Chipset.
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Hey again! I'm back on the forums with a question.

I have 2x Kingston 4GB DDR3 Memory Sticks in my computer, They are both the same models: KVR1333D3N9/4G

Kingston Spec Sheet:

On the Kingston Site and obviously on the KVR1333D3N9/4G it shows that the speed is 1333MHz, but when I plug them in for the first time the default speed is 1066MHz. My board supports 1333MHz+..

Is it a labelling error? I can overclock to 1333MHz fine and 1666Mhz I would just like to know why the default is 1066MHz

Thanks, Alex

A:Memory speed error?

Is this with SPD timings?
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If so what is better keep the 256 mb + the 1024 = 1280 @ 266 mhz

Or just go with the 1024 @ 400 mhz (removing the 266 mhz)

The main thing I am intersetied in knowing is if the BUS speed is related to the memory speed

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Is this all wrong? And if so, how do I fix?

I did read this, but it didn't really explain things for me

It says effective speed is double core speed, which would make my effective speed 1066 if the frequency listed by black box were "core". But it's supposed to be 1600mhz

Corsairs C7D ram is advertised, and sold as 7:7:7:20. Black box reports it as 8:8:8:20?


A:Is my memory speed correct?

Quote: Originally Posted by Yanta

I have 3 x 2gb Corsair 1600mhz DDR3 ram sticks. I ran blackbox, and it tells me the memory is running at 533mhz? And if I read it correctly, it's underclocked by 20%??

Is this all wrong? And if so, how do I fix?

I did read this, but it didn't really explain things for me MEMORY FAQ (please read before posting) - Memory - Motherboards-Memory

It says effective speed is double core speed, which would make my effective speed 1066 if the frequency listed by black box were "core". But it's supposed to be 1600mhz

Corsairs C7D ram is advertised, and sold as 7:7:7:20. Black box reports it as 8:8:8:20?


If I recall correctly, LGA 1366 quad cores support a max of 1066 unless you overclock.

Edit: it says

3 Channels of DDR3 1066 MHz memory
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So my question is, how do I overclock this memory to 1333?
On the stickers on the side of the sticks it says 9-9-9 @ 1.65v, which is the latency I think.

This is my memory.

A:Wrong Memory speed

Download and run CPU-Z and go to the "memory" tab. (this is a handy app to have anyway)

Make sure the memory is in "dual channel" mode and if it's 800Mhz dual channel, you have 1600Mhz RAM.

You can also go into the BIOS...if you built the computer, you will know how to get into the BIOS. There will be memory configuration options there. Make sure you are at the right speed and voltage.

However, your POST screen "should" be showing 1600Mhz. Most POST screens I have seen tell you the actual speed. You could try using the "pause-break" key to stop the POST so you can have a look at it. Use the "print-scrn" button to continue with the POST.
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A:What's your memory assessment speed?

4Gigs DDR2 900Mhz @ Dual channel
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I do plan to do my fair share of transferring videos from my digital camcorder with this machine, so there will be some video editing and processing involved (which inclines me toward the faster memory). However, I'm doubting that the speed difference will be noticeable by dropping to PC2700 and doubling the amount of RAM (and for less $$ than the single PC3200 DIMM). Thoughts?


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After changing the Memory Frequency in the Advanced Chipset Features from 200% to SPD (autodetection) I have had no more random reboots. It now reads 166mhz on startup.

Would someone please explain why the Crucial memory (only difference is the megs) will not run at 200% like the Samsung did?

Thanks for the help.

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OCZ Gold Tri Channel 6GB PC12800 DDR3 Memory - 1600MHz, 6144MB (3 x 2048) at 8-8-8-24


OCZ Platinum Tri Channel 6GB PC10666 DDR3 Memory - 1333MHz, 6144MB (3 x 2048)
at 7-7-7-20

which one would u choose? both sell for 130$ CAD. i know lower latency is better and higher freq is better but i guess i don't know which one affects it more.

seeing as I'm building an i7 rig.. and that the i7 is running at 1333mhz I'm thinking of option B.

appreciate all input

A:RAM Latancy vs memory speed

Hi eafshar,
what motherboard are you using and what are the ram capabilities of your motherboard? also need to check the memory support list and make sure that OCZ memory works with it.
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I was told by someone that 533 (4300) would be okay - is this correct?

The main reason for doubt is that the manual says "to use a DDR2 600 memory module you must install a 800Mhz processor and overclock the BIOS"..

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A:Memory and fan speed problem (I think, lol)

In my computers BIOS there is a "start PMV value", or spmething along those lines. Lower that number to like 0 or a very low number you should see your fan running faster. Best of Luck !
Also, you can control a fan speed with a 3 pin connector.
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I have an USB flash memory brand PNY. Its speed is very low, that is, when I copy or delete files into/from it, it takes a very long time to be done. Is there a way to speed it up?


A:speed the USB flash memory up

Well if you're using USB 2.0 with it, it's naturally pretty slow these days. I would just say use USB 3.0 when copying or moving files to it.

You can also optimize it to perform better with this guide:

Make Your USB Flash Drive REALLY Fast

Hope I helped
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I need to clarify
1. should the processor & mother board speed be same?,
2. If I choose a RAM with (speed ?) of 333MHZ and use a mother board with 800MHZ, Is it a mismatch or underrating the board capabilities?.
4. To simplify my question what are the difference in using a
a.) 533MHZ processor / 533MHZ board with 400MHZ RAM
b.) 800MHZ processor / 533 MHZ board with 333 MHZ RAM.
c.) 800MHZ processor / 800 MHZ board with 400MHZ RAM


A:CPU, Mainboard & Memory speed

1) I'm not really sure what you mean by motherboard speed, its more about what processor your board will support. As long as your board supports the processor your looking at your good to go. I suppose its possible that a board won't be able to support certain special features of the processor if there are any, so its best to read the specs of the processor and board to make sure their compatible.

2) Again its really a matter of the board supporting a certain speed of memory. Usually boards will have a few configurations of memory they support, just make sure the memory you want is supported by the board.

4) b, I think means the board will not support the processor, a and c should both work fine but c will have faster througput performance.

If you find the exact brand and make of motherboard and processor your intrested in you can usually get a nice manual from the manufacturer's website. Just make sure everything is compatible before you buy it and you will be ok.
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A:How do I test memory speed?

I found another thread on TechSpot that mentioned the utility I was looking for, it's called CPU-Z and I highly recommend to determine what your system can handle for RAM, etc. Now my question is, what is the maximum speed latency my system can handle? My CPU has bus speed of 100 MHz with Rated FSB speed of 400.0 MHz. So that means the fastest this CPU can handle is approximately PC2100 without any wasted bandwidth?

My system can't handle dual-channel BTW. Since it is non-dual channel will the increased bandwidth of my current memory (400 or PC3200) help in this regard? Thank you all for reading my post.
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Can someone please tell me how to fix this or what is going, I am totally stumped. I'm not into overclocking but I would like to have the memory running at least close to what they are supposed to be doing

Any help appreciated

My system

Intel Core 2 Duo E6850 CPU
2 x 2 GB Kits Kingston Hyper memory 1066MHz
MSI P35 Platinum Combo
Creative X-Fi Titanium Pro Soundcard
Geforce GTX 285 Video card
Thermaltake 1000W Toughpower PSU
WD 250GB SataII HD
2 X Samsung 1TB HD
Compro T750 HDTV Dual Tuner PCI Card
Thermaltake Bigwater 745 water cooling
Samsung 226BW 22" monitor
Samsung Syncmaster 913 19" monitor

A:memory speed is only 400 MHz instead of 1066

They are running at actual clocks of 400, = effective clocks of 800. (DDR2 800. Close to what you're supposed to run at) You will most propably need to go to BIOS, up the VDIMM to what the RAM's specs say and then put the frequencies and latencies to what they're supposed to be.
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Memory frequency 1337.68MHz
Total Memory size 16384 MB
should the frequency not be 1600MHz ?

A:Memory speed in the bios

Quote: Originally Posted by baccini

Hi I just bought a new pc and asked for Corsair 16GB pc3 1200 1600MHz 4x4 GB DDR3 to be installed but when I checked the bios it lists
Memory frequency 1337.68MHz
Total Memory size 16384 MB
should the frequency not be 1600MHz ?

On a lot of PCs the RAM frequency is set to DDR3-1333 by default. To get something different, you may need to set the BIOS to use the XMP (extreme media profile) settings, or manually set the RAM frequency and timings.
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In other words:
Which is better? 256mb @ 400mhz or 512 @ 266mhz
And what is the risk of overclocking the 266mhz ram up to 400mhz? Would it be reccomended? (my cpu runs @ 30-40 deg. if that means anything)
I use my computer to play light games, dvds, word and excel.

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A:reading memory brand and speed

I'd try Aida32, if you want a glance at it , here's the link to the site
Depending on if your using win7 x32 bit
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quot Memory Speed defines the minimum access time that your RAM can physically handle and is rated in MHz Higher speeds indicate that the RAM can be made to run to faster The actual speed of the memory will be determined by the bus speed of your system and will step down if your system only supports a slower speed quot Bus Testing Speed Memory Bigger for This is a quote from a website selling memory I think I get the concept but is there a mathematical equation for finding out how much memory Testing Bus Speed for Bigger Memory you can add My system info shows what I currently have for memory My maximum capacity is Thanks SIW mb gigs right My maximum memory module size is mb one gig right Here s how I understand this The max cap is just that how much my computer can hold and the module size is what each memory stick can be Now taking into account the bus speed how do I know if the memory will be fully functional or if it will step down Testing Bus Speed for Bigger Memory for the bus speed Thanks for your time nbsp

A:Testing Bus Speed for Bigger Memory

4096mb is indeed 4gb and 1024mb is 1gb, so you're spot on

go to and run their scanner, it will tell you the speed of your current installed ram and what your mobo can take

if this isn't what you want to know then let me know
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i have a computer running windows xp sp1. it has p4 1.7 cpu and 1g ddr sdram memory.
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so i am just wondering if it could be the memory, as i am using two memory with different speed, one 512 at 2100, and the other at 2700. could that be the reason? any help is appreciated.

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My actual system as 6 gig of memory with a 400 MHZ speed


- If I install 1066 6 gig at 1066 will I increase the performance of my system?
- Could I Increase performance by modifying the voltage of my actual memory stick?

Any help or idea appreciated


A:Memory speed: Increas performance?

Quote: Originally Posted by arjfca


My actual system as 6 gig of memory with a 400 MHZ speed


- If I install 1066 6 gig at 1066 will I increase the performance of my system?
- Could I Increase performance by modifying the voltage of my actual memory stick?

Any help or idea appreciated


You can't put memory that is faster than the memory that your pc came with in.
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This is where the Fun stops.

Installed RAM and then found it works. YAY But only at 1333 not the 1600 its ment to be at. So I went into the Bios and Changed too 1600, NOTHING. NO POST.

Had to reset eveything and all.

Went back in and done the Timings to the 9,9,9,24 as it said on the pack. NOTHING.

I have been on the G:Skill site and someone gave a this is what you do, So I did it again nothing.

So am I right in saying that I will be overclocking my CPU when I change things like the FSB and Timings?

Bios is this: .

Here is CPU-Z:

Mother board is Here.

A:New Memory New Timings, New Speed, NOT Happening.

more than likely you will have to up your ram voltage to 1.65v in order to get it at 1600.....most are the same way, 1.5v will do fine for 1333 but most of the older ram not being marketed for SandyBridge cpu will need the 1.65V to see 1600, give that a try with the 9-9-9-24 timings and see how it goes
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If I wanted a processor to transfer 7 bits per cycle how would I determine the data and address bus sizes?

I forget the equations

Thanks for any help :grinthumb

A:Question about bus speed and memory size

Looks like you also forgot to pay attention in class and your textbooks
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A:Solved: Low memory speed postings

Are your timings/voltages right?
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From reading different reviews, specs, and forum conversations i've made the assumption that this will work.
can you guys tell me if it wont.. thanks
ok what im going to try to setup is....
a intel celeron 2.6ghz @400mhz on
(any motherboard with 800mhz fsb) with
1 stick of 256mb 266mhz ddr ram and 1 stick 512mb 333mhz ddr ram
with windows xp, nt or 98se
now the motherboard that im planning to use says it works with 400mhz ram
will it also work with the 266 and 333mhz ram and just downclock to 266 and also the motherboard is suposed to automatically downclock to 400mhz and match the cpu right?
so if it works the system will run at 400mhz fsb, and the memory will run at 266....right?? will this work??

A:cpu memory and motherboard speed issues

The BIOS in most motherboards is set to automatically detect the processor and memory and set their speeds. One issue you will have though is that the 333 memory will run at 266 unless you overclock the 266 RAM to 333. Most RAM will do that. You cant run RAM sticks at different speeds.
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My motherboard has the following specs:

Processor: Socket 478 for IntelŪ PentiumŪ4 processors
Chipset: SiS 661FX + SiS 963L
Front Side Bus: 800 MHz / 533 MHz / 400 MHz
Memory: Single DDR266/333/DDR400x2

This means that it only supports "single channel" memory configurations? Can someone please explain this to me and how it creates a "bottleneck" issue with the FSB ?

I currently have 2 x 512MB PC2100 memory.

I want to upgrade to 2 x 512MB PC3200 memory. But I cannot have them work in dual channel correct?

My CPU is a P4 3.0ghz w/ HT 800mhz FSB, so basically thats 4 *200mhz. This works with PC3200 memory because that is 2* 200mhz correct? What multiplier/frequency settings would work for an overclock. Nothing big just maybe a 10-20% increase.

But can someone also explain what DUAL CHANNEL is - and i guess my mobo doesn't support it?


A:memory speed vs CPU FSB and overclocking questions

Having your memory in dual channel configuration gives you a greatly noticeable boost. This is because the CPU and GPU can access your memory, escpecially in large quantities, more easily; giving a noticeable increase in responsiveness and higher fps per RAM stick in gaming.

I'm sorry I can't aid you in finding whether your motherboard supports dual channel. Perhaps your motherboard manufacturing site (or Computer Manufacturer if the mobo is OEM) will have the motherboard manual which will almost certainly tell you if your computer supports dual channel.
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First Thread,

Asus K8v Se Deluxe Mobo
Athlon 64 3000+
Radeon All-in-wonder 9800 Pro
160 Gig 7200 Hd
40 Gig 7200 Hd
Sony Dvdr+rw Burner
Some Sort Of Floppy Ive Never Used
Thermaltake Tsunami Dream Case
19" Viewsonic Crt
Logitech Bluetooth Mouse And Kb
1 Stick Of No Name 512 Pc3200 Ram

I Just Bought Another Stick Of Kingston 512ddr 400 Ram And Installed. System Sees New Memory And Everest Software Says That Im Running @ 200mhz. Best I Can Tell With 2 Sticks Of 512 I Should Be @ 400 Mhz.
I Was Running @ 200 Before Adding Kingston Also. Anyone Have Any Words Of Wisdom?

A:K8v Se Deluxe, Adding Ram But Not Sure About Memory Speed

You can only run as fast as the slowest RAM chip or as fast as your mobo can handle, either your other RAM is slower then you think or your mobo doesn't support anything higher. Idk to much about AMD but that's how it works w/ intel.
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I have amd 3200+ cpu on motherboard abit nf7-s2 with dual channel support
and 2 identical memory sticks each 512MB DDR400.

When I ran the latest sisoft sandra, it reports:
memory bus speed 2x200MHz (400MHz data rate)Click to expand...

But I have DDR400...
Does it mean that each memory stick should work at 400MHz and NOT at 200 as reported by sisoft sandra?

A:dual channel memory speed

DDR stands for "double data rate". So an easy way to look at it is that it does things twice every clock cycle. That's why it's 2 x 200 or 400MHz.
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Hello I m relatively new to learning about the hardware aspects of pc s I d like a little bit of insight from and Chipset Memory capabilities speed anyone regarding my inquiry Based on my research from on Intel s website the chipset that my motherboard comes with is Chipset and Memory speed capabilities the Intel G http www intel com products desktop chipsets g g -overview htm and it says the memory support of this chipset is quot Dual-Channel DDR Memory Support quot Does this mean that I can install DDR memory modules in my machine even though the Chipset and Memory speed capabilities documented motherboard specs see below show only DDR I m curious if I can replace my existing DDR PC- memory sticks with DDR memory sticks to take advantage of what this chipset is capable of Or is it possible that the motherboard will limit the chipset s capabilities Any and all help will be greatly appreciated Thank you I recently purchased a HP D T desktop and according to the specs of my customized order it has the following components and their specifications Front-side bus FSB MHz Chipset Intel G BIOS features Keyboard combination to used to enter BIOS F System BIOS core brand AMI Memory Dual channel memory architecture Four -pin DDR DIMM sockets Supported DIMM types PC - MHz PC - MHz Non-ECC memory only unbuffered Supports GB DDR DIMMs Supports up to GB on bit PCs Supports up to GB on bit PCs nbsp

A:Chipset and Memory speed capabilities

A lot of the newer Intel based boards can support either DDR2, DDR3, or both - but only one type at a time.

If your HP documentation only lists DDR2 as being supported then HP has decided to implement the board with only DDR2 capability and its a wise move. DDR3 is expensive and offers little to no gain at the present time in real world environments.
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So, i first had a difficult time trying to figure out the details on my own, even after the college courses managed to royally confuse me on the simplicity of DDR.

After reading through this nearly 2 year old thread (SEEN HERE) figuring the operating speeds was a simple reverse engineering of calculation used to get the rated speed...

Ok, so now i know something is off.
After a quick (not really quick) 3DMark test, the results post saying my RAM is running at 889Mhz (SEEN HERE)

But my RAM is DDR3-2133 which should be 1066Mhz...

Uh, right...

So how do i manage to configure it to function properly? The BIOS says it is 2133, but windows is only using 889Mhz or the available 1066Mhz...

I am fairly certain it is a windows related issue.

A:Memory not running at rated speed.

Please download and install CPU-Z CPUID - System & hardware benchmark, monitoring, reporting and then run it. Please post a screenshot of the CPU, Memory and the SPD tab. The SPD tab is for each Dimm slot. Just post shots of the slots with ram in them. This will tell you how to post screenshots.
Screenshots and Files - Upload and Post in Seven Forums
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I have a Inspiron e1505 with a Intel Duo Processor T2400 (2M Cache, 1.83 GHz, 667 MHz FSB). My current memory is 2 x 512mb DDR2 533 (PC2 4200).

I plan to upgrade my memory to 2 x 1gb. I was going to get DDR2 667 (PC2 5300) to match with the 667 MHz FSB. I do have the option of getting DDR2 800, but I think this would be pointless since the FSB is only 667.

Is this the right way of going about it? I'm no expert, but just from searching around the web this is the basic idea I gathered.

Thanks for the help

A:Memory upgrade, matching w/ FSB speed?

I think this would be pointless since the FSB is only 667.Click to expand...

IMO DDR2 800 is fine if its only a couple dollars more expensive.
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I find myself now having do upgrades on my computer since my husband passed away several months ago.

Due to video editing, that I now are involved with, I feel I need to upgrade the memory in my system.

The system is a hp 7680 and has 4 slots. 2 slots each have 1gig 533 mhz ddr2 chips.

My question is, if I add 2 more single gigs sticks, do they have to be 533 mhz or can I go to a higher speed chip, like 633 or 800?

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It is running at 1300MHz constantly and it is suppose to run at 1600MHz, any reason why? Specs at bottom.

A:Memory not running at full speed

Have checked the MOBO ram list.
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Does anybody know the max memory speed possible for Thinkpad E555 in a dual module configuration and with most recent BIOS?AMD lists in some documents different speeds possible for single SO-DIMM and dual SO-DIMM as well as single rank or dual rank. It claims that there might be a fall back to 1333MHz even. But what is the reality for the Lenovo Thinkpads? I can't find any official documents on that. There are brands (like Kingston HyperX Impact) that have DDR3 SO-DIMM available for 1600MHz, 1866MHz and 2133MHz, while the latter one is not specifficaly offered as being compatible with the E555. Anybody with higher RAM speeds than 1600MHz DDR3 on the E555 or a similar Thinkpad? 

Go to Solution.

A:AMD APU Kaveri (like E555) - what max memory speed...

bump (nobody has any experience so far?)
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Can anyone tell me what this means I am thinking of buying a new pc and am not confident enough to build it myself. Have been looking in the usual places that people who build there own rigs probably disapprove of, when am looking at a certain pc from dell it says this

The memory speed of 4 DIMMS configuration will be limited at 1066MHz with Athlon II X4 630 and Phenom II X4 820 processors. ...

If the memory works at 1300 Mhz and the Processor only supports 1066 Mhz what does that mean ?

A:AMD processors limited to 1066MHz memory speed?

AMD CPU's have the memory controller built into them. Faster memory will just have the speed of it set to what the memory controller can support.

So if the memory works at 1300Mhz, but the controller only supports 1066Mhz, then the 1300Mhz memory will just slow down to 1066Mhz.

But Dell only says that the speed of the memory will be limited on those CPU's only if all 4 ram slots are filled with memory. Unless you will be upgrading the memory in the system when you get it, you dont need to worry about it.

Hope this helps.
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hi guys...just bought a new system.

im having a problem with my unchached speed and memory performance...any ideas whats the problem?.

heres a rundown compliments of pcpitstop.
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I was wondering what is better to look for in a video card the speed or the memory

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I have four 184 pin-DIMM sockets
Supports Dual Channel DDR 400 ECC/non-ECC un-buffered memory
Suppports up to 4GB RAM
Existing Memory is OCZ DDR PC-3200 / 400MHz / Value Series / Dual Channel .

New memory is Micron/Crucial 1GB PC2700UNBUFF PBF /333Mhz

This would make a total of 3GB and totally populate the MBD with 4 sticks.

I spent$70 (if I get the rebates) for the new 2GB of memory.

1. Do I keep the faster 400MHz 1GB memory in Bank A
2. Do I need all 400MHz memory? (I can return the new stuff)
3. Can I overclock any of this if it is better matched?

Any comments appreciated. This is a noobe post. (My first post.)

MY motherboard is ABIT KN8 SLI(NF-CK804) Socket 939
AMD Athlon 64 Processor 3700+ 2200MHz


A:Pairing memory size&speed across my 2x2 banks

You should never ever mix different speeds of ram unless you like dealing with bsod's and instability issues.
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I want to upgrade the ram on my laptop. My processor is Intel Core i3-2370M and supports DDR3 memory at 1333 Mhz. The pre-installed memory is running at 1.5v. The problem is, I'm having trouble finding the exact memory for my laptop. The closest I can find is Kingston 4 GB, 1600 Mhz, 1.35v. Is this bus speed and voltage compatible with my processor/motherboard? Will it run without any problems on my laptop?

Also what are the disadvantages of mixing memory sticks other than not being able to run in dual channel mode? I don't care about dual channel but would like to know if there are any other disadvantages.

A:DDR3 Memory, Voltage/Bus speed compatiblity

We can help you better if you advise us what the brand name and model name and model number of your laptop is.

All we know at this point is that it has an Intel Core i3-2370M processor and an unknown amount of DDR3 RAM.

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Good morning I recently purchased a mg memory card for my IBM laptop The original OS had mg with which I upgraded to XP SP a while back Anyway that being said I put speed up Memory doesn't Solved: laptop New the new memory in and checked in BIOS on boot and it only said mg which I assume the rest was allocated somewhere else on the disk Also when Solved: New Memory doesn't speed up laptop I tried installing a couple of programs on the laptop after the new memory was put in I got a blue screen with some error messages I assume Couldn t read it fast enough When I tried to read it the laptop rebooted itself and then started up I cannot install any apps or programs without getting that blue error screen It always goes to that screen and reboots itself I don t understand why it didn t speed up the laptop I don t know the processor speed which I think may be a factor in why it s not running better I think it s a Pentium III if that helps to accomodate running XP It does work but very slowly at half the capacity it should for running XP obviously This laptop is a fairly old IBM Thinkpad R I was wondering if there was anything I could do or maybe should have done to remedy the situation I put the old memory back in and although it s slow it seems to run better I was also thinking that maybe I should just reinstall although not sure how that would work when I changed the partition from FAT to NTFS I have read some post about reinstalling on top of XP and some suggest it s not a good idea cos alot of things do not support as far as performance Thanks nbsp

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I have a MSI GX it's default memory is the x GB DDR - Max x GB DDR - - - - Timings Recently I decided to do upgrade my memory from the total of a set memory gx640 I How windows clock 7? speed msi do with on gbs to gb the type of memory i'm using is this Then I started getting rampant BSOD I wasn't sure what to do so I did so did some research I was told that the memory clock speed or something could be off I used speccy to identify what I How do I set memory clock speed on a msi gx640 with windows 7? had it says this RAM Memory slots Total memory slots Used memory slots Free memory slots Memory Type DDR Size MBytes Channels Dual DRAM Frequency MHz CAS Latency CL clocks RAS to CAS Delay tRCD clocks RAS Precharge tRP clocks Cycle Time tRAS clocks Command Rate CR T Physical Memory Memory Usage Total Physical GB Available Physical GB Total Virtual TB Available Virtual TB SPD Number Of SPD Modules Slot Type DDR Size MBytes Manufacturer Samsung Max Bandwidth PC - F MHz Part Number M B CH -CF Serial Number A DD Week year SPD Ext EPP JEDEC Frequency MHz CAS Latency RAS To CAS RAS Precharge tRAS tRC Voltage V JEDEC Frequency MHz CAS Latency RAS To CAS RAS Precharge tRAS tRC Voltage V JEDEC Frequency MHz CAS Latency RAS To CAS RAS Precharge tRAS tRC Voltage V JEDEC Frequency MHz CAS Latency RAS To CAS RAS Precharge tRAS tRC Voltage V Slot Type DDR Size MBytes Manufacturer Samsung Max Bandwidth PC - F MHz Part Number M B CH -CF Serial Number A DD Week year SPD Ext EPP JEDEC Frequency MHz CAS Latency RAS To CAS RAS Precharge tRAS tRC Voltage V JEDEC Frequency MHz CAS Latency RAS To CAS RAS Precharge tRAS tRC Voltage V JEDEC Frequency MHz CAS Latency RAS To CAS RAS Precharge tRAS tRC Voltage V JEDEC Frequency MHz CAS Latency RAS To CAS RAS Precharge tRAS tRC Voltage V If anyone see's anything wrong or perhaps the clock speed is the problem please let me know how to fix it Thank you all so much for taking the time to read this

A:How do I set memory clock speed on a msi gx640 with windows 7?

Welcome to Seven forums. When you upgraded the memory, did you buy a new set of memory or just add a stick to what was already there? Also, do you have the options in your bios to set frequency and timings of your memory. most notebooks do not. Please download and install CPUz. Post screenshots of the memory tab and for each of the dimm slots on the SPD tab. your SPD tab will have a selection for each dimm slot.
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Hello I've upgraded BIOS to and installed Windows on my Acer V - G It works good 571G Out Memory - - Acer what speed? Maxing but it would work even better if I'd have more RAM I installed CPU-Z and here's my specification about memory nbsp Chipset ------------------------------------------------------------------------- Acer 571G - Maxing Out Memory - what speed? Northbridge Intel Ivy Bridge rev Southbridge Intel HM rev Acer 571G - Maxing Out Memory - what speed? Graphic Interface PCI-Express PCI-E Link Width x PCI-E Max Link Width x Memory Type DDR Memory Size GBytes Channels Single Memory Frequency MHz CAS latency CL Acer 571G - Maxing Out Memory - what speed? RAS to CAS delay tRCD RAS Precharge tRP Cycle Time tRAS Command Rate CR T Host Bridge x MCHBAR I O Base address x FED MCHBAR I O Size MCHBAR registers Memory SPD ------------------------------------------------------------------------- DIMM SMBus address x Memory type DDR Module format SO-DIMM Manufacturer ID Hyundai Electronics AD Size MBytes Max bandwidth PC - MHz Part number HMT S MFR C-PB Serial number F E Manufacturing date Week Year Number of banks Nominal Voltage Volts EPP no XMP no AMP no JEDEC timings table CL-tRCD-tRP-tRAS-tRC frequency JEDEC - - - - MHz JEDEC - - - - MHz JEDEC - - - - MHz JEDEC - - - - MHz JEDEC - - - - MHz JEDEC - - - - MHz JEDEC - - - - MHz DMI ------------------------------------------------------------------------- DMI BIOS vendor Acer version V date ROM size KB DMI System Information manufacturer Acer product Aspire V - G version V serial NXM EP E UUID F F - -E - F -B E ABE SKU Aspire V - G V family Type Family DMI Baseboard vendor Acer model VA HC CR revision Type - Board Version serial NBM A FF DMI System Enclosure manufacturer Acer chassis type Notebook chassis serial NXM EP E DMI Processor manufacturer Intel R Corporation model Intel R Core TM i - M CPU GHz clock speed MHz FSB speed MHz multiplier x DMI Memory Controller correction unknown Max module size MBytes DMI Memory Module designation DIMM DMI Memory Module designation DIMM DMI Memory Module designation DIMM size MBytes single bank DMI Memory Module designation DIMM DMI Extension Slot designation J C type AA populated no DMI Extension Slot designation J C type A populated no DMI Extension Slot designation J C type A populated no DMI Extension Slot designation J D type A populated no DMI Extension Slot designation J C type A populated no DMI Extension Slot designation J D type A populated no DMI Extension Slot designation J C type A populated no DMI Extension Slot designation J C type AA populated no DMI OEM Strings string String for Original Equipment Manufacturer string String for Original Equipment Manufacturer string String for Original Equipment Manufacturer string String for Original Equipment Manufacturer string String for Original Equipment Manufacturer DMI Physical Memory Array location Motherboard usage System Memory correction None max capacity MBytes max of devices DMI Memory Device designation DIMM format DIMM type unknown DMI Memory Device designation DIMM format DIMM type unknown DMI Memory Device designation DIMM format SODIMM type unknown total width bits data width bits size MBytes DMI Memory Device designation DIMM format DIMM type unknown nbsp I'd like to ADD at least GB of RAM so I can have GB in total I need to know is it possible to get RAM with higher frequency and will it work in my laptop For instance can I remove current RAM which is MHz and install x GB MHz If not then what is max amount and speed of memory I can get Id like to get a memory with better CLs if possible can I do that nbsp Thank you merry Christmas

A:Acer 571G - Maxing Out Memory - what speed?

Hello, Your laptop supports up to 16Gb - DDR3 - 1600MHz (2x8Gb).The frequency is 800MHz because it works in single channel 1600/2 (in dual channel 1600MHz).See the datasheet of your laptop. I wish you a Merry Christmas!
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This was posted by Corsair a couple of days ago. What does everyone think? Is this just an attempt to get people to upgrade to shinny corsair ram, or is this finally a reason for gamers to have good ram/ overclock our current sticks?

A:Battlefield 4 loves high-speed memory?

No way the average FPS increases by 20 just by adding faster RAM (1920x1200 ultra graph)... BF3 barely gains 3 FPS from high speed RAM. It is just bloated graphs and marketing.