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HP Pavillion not powering up

Q: HP Pavillion not powering up

A friend of mine phoned me tonight to tell me her old HP Pavillion had begun to struggle to power up over the last few days.

A big fat zero occured when she tried to turn the pc on over the weekend - it did power up after a couple of attempts. Gradually the number of attempts have increased until tonight when any number of button pushing would kick that monkey into life.

She has checked the power cable is fitting tight and the pc has not been removed.

Any suggestions?


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Preferred Solution: HP Pavillion not powering up

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A:Trouble with powering up HP Pavillion 1620n

The power supply is the first piece of hardware to be hit by a power surge. it also may have been damaged
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When it isn't powering on, the mobo isn't receiving power either.

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A:Not powering on

Hey there,

I think my first thought would be the power supply in the computer is broken. I am sure quite a few people on here would agree with that. If you are fairly tech savvy then you will probably be able to switch a known working power supply from another computer into yours to test if that is the problem. If you are not then you could see if someone you know might be able to help you with it. Or take it to a computer shop to get it fixed by a professional.

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A:powering on

Possibly the PSU has an intermittent fluctutation in voltage causing no post, BIOS flashes have also been know to solve cold boot problems...

If you can swap the PSU from another known working PC and if that doesnt yield a result and if you're brave enough try updating your BIOS.... bearing in mind if you **** it up you're not gonna get a post full stop
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Cheers, Chad

A:Powering Off on it's own.

Maximus 19

Seems like over-heating. Run it awhile with the case cover off and a floor fan blowing at it from the M/B side.
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Thanks a lot for any help.

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A:Powering on/off

Turn it on in the morning and off at night, or when you are finished for the day.
Sudden burst of electricity is bad for components.
Stopping and starting of spinning parts is arguably harder on them than leaving them running.
Warming up and cooling down of components should be minimized.

Many people I know leave their computers on ALL the time, only powering down for hardware changes or when the system locks up. Right now my computer has been on for 9 days 4 hours and 5 minutes.
Really there are only 4 reasons I can think of to turn it off if you have adequet cooling:
Saving electricity.
Leaving town.
Hardware change.
System lock up.

Of course if you are running a 9x based OS you might want to restart more often than every 9 days because 9x doesn't manage its RAM as well as the NT versions of Windows, meaning your performance will suffer after days of opening and closing programs.
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A:PC not powering on

Try another power supply first. The motherboard or a corrupt bios can cause this too
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A:Powering down...

Can be.
Please try Memtest (7 Passes)

But also can be the CPU overheating
Your easiest approach would be to blow out all internal dust
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"autochk program not found-SKIPPING AUTOCHECK" is the message that pops up before it starts all over again.

A:Powering Up!


Originally Posted by Philold

"autochk program not found-SKIPPING AUTOCHECK" is the message that pops up before it starts all over again.

There is an excellent solution here. Very well written and easy to follow.
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A:Powering Over And Over says that your boot drive is D:, is that correct?

Your boot drive should be C:, while the optical drive should be D:, assuming there are only those two drives in the system.

It also says that you have a bad hard drive, whether it's C: or D: and IMO that would be the first thing to check, after ensuring that all connections are correct and that the drive is properly recognized in both the BIOS and in XP Disk Management.

Do you have an MS XP CD?

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A:PC keeps powering off

Post the rest of you system specs. Is possible that the thermal seal is bad on your processor/heatsink causing it to overheat. This was the case for quite a few Pentium 4 PC’s with a high clock on the Prescott core. If you have a P4, this could be your problem.
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A:PSU not powering on

All ATX power supplies need a 3volt connection to the motherboard to power on
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A:Help, PC not powering up.

you may have a faulty part. the PSU could have been a dead on arrival part.

try switching it out for another one. send that one you have back.
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A:powering down

Press and hold the power button for about 5 seconds.

What model Dell?

Are you having problems when choosing shutdown?

Post more information about the problem.
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A:my pc is powering on and off.

Hello neo1407. Welcome to the forum.

The could be a few reasons for this behavior.
Problem with the power supply
Problem with the power switch on the computer case
Loose or unseated power connections to the motherboard.
Faulty hardware - motherboard, video card, RAM, CPU
Is this a new build?

If not, and it was running fine and this just started happening, have you made any changes to the system recently?
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A:HP G61 not powering on

The only thing I can do for you is direct you the appropriate area of the forums, that this problem of yours belongs....

Try this link......

Welcome to TechSpot and good luck!

Update : I guess disregard that link above, appears someone already moved this topic thread to it's appropriate place.
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Thank You

A:powering up

You were NOT careful enough.

HOW did you clean the dust?

You should have blown out your system with one of those air-spray cans you can buy, NEVER touching ANY component directly. If you do this, that leaves only small wire connections that the air MAY blow loose.

When you power-on, do you get MORE than ONE beep from the PC speaker?

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A:PC powering off

Memory 2 x DIMM, Max. 2 GB, DDR SDRAM ,Non-ECC, Memory

Have you tried putting the original memory back in to test it?
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A:not powering up...

have you tried to jump the power supply on to test if it is ok? first i'd check for a light on the mobo but then if you jump the green wire (usually the 14th pin on the 20pin plug) to a black one (a ground) it should turn on, if it doesn't the psu is more than likly dead and you should try another one.
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A:Powering UP

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You might see if this may be able to help to have your user account to be logged on automatically at startup.

Log On Automatically at Startup

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How to Enable or Disable Require Password on Wakeup in Windows 7
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A:Not powering up

Hi,            Based on the light blinking sequence below shows what could have gone bad. As you had bought the unit 4 months ago it will be under warranty. So i would suggest you to contact HP Technical Support to get this issue resolved. LEDs blink 1 timeCPUCPU not functionalLEDs blink 2 timesBIOSBIOS corruption failureLEDs blink 3 timesMemoryModule error not functionalLEDs blink 4 timesGraphicsGraphics controller not functionalLEDs blink 5 timesSystem boardGeneral system board failureLEDs blink 6 timesBIOSBIOS authentication failure
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A:PC not powering up

give us some specs on the pc.
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A:Now PC Is Not Powering Up!

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A:not powering on

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A:HP PC Powering Off

I would initially try removing the side panel and directing a fan in to supply more air and see if the problem still occurs.
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A:Laptop not powering up

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A:Problem with powering down

Let's have a look at your system. Please post the information that's detailed in this post: (even though it's for BSOD's, it'll contain a lot of troubleshooting info that we can use).
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A:New rig randomly powering down?

I would check your power supply with a digital multimeter. I have a Sears Craftsman that I go for $20 at KMart (great investment).
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Any suggestions ? I think it maybe the power supply or motherboard overheating ?

A:Laptop powering off

Something is overheating... see here:
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Therefore I disconnected the power supply from the m/b,turned the computer on,
switched the power supply on and nothing happens.
I expected that the fan of the power supply should turn.
Is this normal ?



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A:T420 not powering up

Before spending money in a new mobo, have you tried this good 'ol trick? 

Remove the battery
Disconnect the AC adapter
Press the power button and hold it pressed for 30 seconds
Connect the AC adapter again (do not plug in the battery)
Try to boot again

You're also sure the AC adapter works fine? 
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A:Powering up issues

or possibly a way to test the connection between the power switch and mobo?Click to expand...

There are two pins on the main board that comprise the power switch (which are connected also to the on/off switch). If you can determine which those are, you can try shunting them to eliminate the switch as the problem.

But, if you disconnect the wall plug from the system for about 10 minutes or so and the system fans try to spin for a split second either when the power is plugged in again or when you press the power button, the power switch is most likely okay.

Other diagnostic: Disconnect all devices and cables from the board except power, memory and video to see if the board will light up. Disconnect even the keyboard and mouse.

If it still doesn't power up, you have at least narrowed it to those remaining items. My experience is that it is most likely the board or processor.
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Is it safe or am I running a massive fire risk here? Charger is out now (and back in the HP, which I'm typing this on).

I did hear a banging noise, after which the laptop went off. However, it was the cover over the ports falling over which shocked the laptop into going off - giving it a hard tap also does this. Didn't stop me getting overly paranoid for a minute though...

A:Over-powering a Laptop

the amperage rating on you're newer supply is the maximum power than can be drawn. this basically means that the supply will deliver any current up to it's rating, including your laptop's specs.

so the answer is, no, your newer hp supply won't make trouble powerwise.
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The first three lights come on,when I try to start it . Nothing else happens no noise or anything. I have tried taking battery out,starting with external power only still the same.

Does it sound expensive to fix.

A:Tecra A2 is not powering up

Can you please post a bit more about this machine?
Have you bought it as used one and now you try to fix it?

Have you maybe tried to update BIOS and now you have this problem?

On this virtual way it is not easy to offer exact diagnostic but it doesn?t sound good to me. Maybe is BIOS screwed-up. Repair can be pretty expencive.
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A:ASUS K8S-MX not powering up!

Could try swapping round the connections for reset/power switch to see if the switch if faulty.
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My computer spec,

Motherboard - A7N8X Deluxe with an athlon XP 2600


A:Computer not powering on

Welcome to Techspot

First thing that comes to mind, is to check that the cooler is properly seated on the CPU. If the cooler would be loose, the CPU overheats in seconds, and some mobos switch everything off automatically, to prevent a burnout.

Also, the CPU could have overheated already and may be dead. Check it in another PC if you can.
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A:Laptop Fan 100% when powering on

Nah, thats normal for alot of systems, including desktops, I wouldn't worry.

But don't know anything about your beep though.
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A:Computer Not Powering On

If I understand correctly, you have a 400 Mhz computer and the power was unplugged while it was running. It will no longer post. You have tried to replace the power supply and it still will not post. Is that correct?
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Desktop computer, ECS motherboard with Nforce4 chipset. 8600GT.

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A:Hibernation Vs. Powering Off

I restart my computer one a month for maintenance, otherwise its on all the time and it works perfectly. I personally think hibernation was made for laptops to conserve battery power.
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stuff tried:
power supply
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what to do, what to do... ;o(

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A:Laptop not powering on

I'd suggest you run diagnostic tool on the system. It will scan for any possible hardware issue that might be causing the system to act up
1. Power off system
2. Power on system, quickly start tapping F12 key continuously. You should be diagnostic screen. After quick tests, run full tests as well. Please report back any error code.
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Any ideas?

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A:Computer keeps just powering down....

Have you checked your computer for the Blaster Worm?
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A:Powering up problems

Hi bhath19
Try hooking the motherboard up outside the case. Something on the motherboard could be shorting out. Are you sure the sound is comming from the power supply and not some type of system board overheat alarm?
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A:Powering on inconsistently

My first thought would be the power supply. Is this a custom build or is it a system from a mfg like dell, gateway, etc?
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A:Battery/ Powering on my PC

Hello MrsM and welcome to Seven Forums.

Since you didn't give any info about your computer I'm guessing you have a laptop. It's OK to run a laptop with the battery installed and using the AC adapter. Are you saying with the battery installed you can't power up the computer with AC power?

It's also OK to remove the battery and use just AC power. Will the computer start with the battery removed? If yes, it's likely you have a bad battery.
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Many thanks

A:Xp Home Powering Up

Create a new profile (user account) and then go to C:\Documents and Settings\, find the old folder for your old account, the documents are in My Documents and the desktop stuff is in Desktop.
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it takes me 2 or 3 trys to power up my system.??its a amd athlon xp. windows xp operating system.

A:powering up system

The first thing I would try is another power supply. You can test this by using another power supply from another computer if you have one.
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A:powering up my laptop

Hi Almaalou,

The new battery may not have any charge at all. Check the adapter if it is giving the correct output voltage as per its label. If you do not have the tools to use to test this, use the AC adapter in a similar laptop perhaps from a friend.

Also try removing battery and AC adapter then press power ON button for 30 secs. at least. Put back the battery and plug in the AC adapter then power ON as normal.
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What kind of ill-effects (if any) can happen from powering down a computer that has been locked by a user? Assuming all data has been saved before locking the computer, can significant damage or degradation occur from other users powering down a computer to "unlock" it?


A:Question about powering down

Yes. If you power off the system without going through the normal shutdown procedure, you run the risk of file corruption.
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It can be running a program and often if I'm trying to do a lot of CD reading it can happen but that might just be a red herring.

I've tried it with a different graphics card and with a different CD drive but the problem persists. I've upgraded from Win98 to WinME and still the problem is there.

I *think* in tghe past I tried a differnet power supply and different memory but I can't be too sure about that. I've still those tests to do again but what can cause this machine to suddenly switch itself off?

A:Computer is powering down!

Other than a Power Supply issue - what are the system temps like ? Any sign of overheating as the pc would (hopefully) shutdown if temps built up too much. Are the fans spinning ? And is the inside clean ? Check the vents and the heatsink for clogging.
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Recently my computer has started to hang at the 'Windows is Shutting Down' screen when I tell it to turn off. There no 'It's now safe to turn off your computer', I just have to press and hold the power.

This is quite annoying, especially with it's already slow shutdown time.

Any ideas why it should suddenly, out of the blue, decide against turning itself off?

Thanks again

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Product Name: HP Spectre x2 - 12-a012nr (ENERGY STAR)Operating System: Microsoft Windows 10 (64-bit) GreetiingsMy laptop is not powering on. Have tried holding start button to force system reset.Shutdown normally. tried to power on the next morning nothing.There is a charge light when charger is connected.I would like to send it back to HP for inspection and repair but I  dont have an address.

A:HP Spectre x2 Not powering On

Hello @eugenespectrex2, Thank you for visiting the HP Support Forums! The forums are a great place where you can find solutions for your issues, with help from the community! I understand that you are having an issue with the notebook starting, and wanted to assist you!  I see that you are interested in sending the notebook in for repair. First, try reviewing the following document, to see if the issue can be resolved without sending it in.  Please post back with the results: HP Notebook PCs - Computer Does Not Start (Windows 10) Please let me know if this information helps you resolve the issue by marking this post as "Accept as Solution", this will help others easily find the information they may be looking for.  Also, clicking the Thumbs up below is a great way to say thanks! Have a great day!
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my computer keeps powering off...sort of. I run Win XP home on my desktop. When i turn it on and log in, i have about 1 minute to get situated before the screen goes black and i get the "monitor self test" message box that says the monitor is working fine. The thing is, the green power light on the box is still lit. I have to hold down the power button for a few seconds to get it to completely power off, and then i turn it on, log in, and go thru the exact same thing again...every time. any thoughts? oh, and i got the computer in feb of 2004, and it's a gateway, if that makes any difference.

A:computer keeps powering off

tell us-
-what hardware is your PC (or model number)
-Have you made any recent changes to your PC
-What do you use your pc for
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can someone please help.. when i hit the power button on cpu all i get is a flicker and then nothing. i already replaced all wiring and replace the power supply and the ram. could it possibly be the power button causing my concern. thanks

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I have just completed building a new build PC , with a new case and a used board , board is a GIGABYTE : GA-EQ45M-S2 rev 2.0 , 600W PSU , CPU , Intel Core 2 Quad 8200 , incl HDD , DVD RW .

I have double checked the "F" Panel conections ( lots of times ) changed the CPU from original Board , cleared the bios , put a new bios battery in , but still no luck , the led light on the board comes on but when I press the start button nothing happens , checked the switch on the front panel it is ok .
there is a chassis intrusion terminal on the board , there was no jumper on it . so I put a jumper on , again no power up .

Not sure what else I can check , does the power button connect a positive or negative feed back to the board ! .

If any one can give me anything to test , that would be great .

A:New Build PC not powering up

The pw switch leads do not matter which way they go on. Same for the reset switch leads. The pw led and hd led leads do matter however if you get one on wrong, no problem. Just switch them around.
Next have you read the guide at the top of the page for problem builds? If not, do so. If you follow ALL steps of the guide, you will find the cause of your problem.

A very common problem with inexperienced builders is to forget the 4/8pin aux pw connector.
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(fyi: I have just removed the heatsink/fan and turned it round, and used arctic cleaning solution, preparation fluid, arctic silver 5, but its still powering off)

Many thanks in advance,
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After my computer has been on for an hour or so it completely powers off. I cant seem to find out a reason and it takes several times of attempting to start it before it will let me turn it back on. it starts to power up and then stops as windows opens
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A:powering off for no reason

Sounds like a faulty hardware issue.
How did this begin to occur? Can you associate with any hardware\software change?

Start your computer in safe mode and
Using Last Known Good Configuration to check if you can log in the system.
If it is notebook, remove battery and check.
Regards,Please remember to click ?Mark as Answer? on the post that helps you, and to click ?Unmark as Answer? if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. ?