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Computer turning on, then not turning on

Q: Computer turning on, then not turning on

Let me clarify. My brother brought his computer over for me to recable it. Simple process right? Not so much. Before I get into details, let me give you specs. Keep in mind since I did not build the system, I do not have all the information I usually would.

Windows Vista
4 GB of RAM (unknown brand)
Abit motherboard (unknown serial number)
AMD athlon 64 3.0 GHZ processor
4 250GB harddrives (In raid configuration to look like 2 hard drives @ 500GB each)
Antec 550 watt power supply
Nvidia Geforce 8600 GT Video card

Okay, so when I recabled everything and powered the system on, it would not boot at all. Everything was on and running, but the bios was not doing anything, and everything was at a standstill. Not knowing if the raid configuation and the motherboard had anything to do with it, I started swtiching the sata connections into different configurations based on what I think the individual would have done. In doing this I accidentally pulled a jumper from the motherboard. Setting it aside and not thinking it was important, I plugged everything back in and attempted to power on the computer.

This is where it gets interesting. Instead of even powering on like it did last time, it powered up for MAYBE one second before shutting off. Any other attempts to power it on were futile, and resulted in nothing.

After this, I replaced the jumper where it was supposed to go, and powered on the system again. The same thing happened. I want to think the power supply is toast, but I would like some ideas/advice on what others may think it will be before I go switching parts out and/or buying new parts for my brothers machine.

Thankfully, if I have to buy new parts, they should be inexpensive because the processor is fairly old.

Any help is appreciated. Thank you.

Preferred Solution: Computer turning on, then not turning on

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A: Computer turning on, then not turning on

Make sure that you have the 24-pin main power connector and the 4-pin power connector both connected to the motherboard.

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Here is the issue, when my computer goes to sleep after it's on for a while when I move the mouse to get the screen back up it shows the backround no icons or anything to click.
Same if I turn it off and turn it back on. I have to turn it off and on many times then go to safe mode and shut down then turn it on again for it to work. Just now I had to turn it on/off 4 times for it to show the icons and task bar. Usually it is left blank with nothing to click having no choice but to turn it off.
Norton says no viruses.
My computer is HP with windows 7. I bought it in 2011.
This problem has been happening for a long time. Please help.

A:When turning off computer & turning it back on again screen is blank

Hello squirrels and welcome to Seven Forums.

I think I'd start out by trying to do a startup repair. It's been suggested that the startup repair be done 3 times (regardless of what the notifications say) and the computer rebooted after each repair.

Startup Repair

If this doesn't fix the problem one of the Forum experts has prepared these troubleshooting guides with some additional suggestions.

Troubleshooting Windows 7 Failure to Boot

Troubleshooting Steps for Windows 7

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Long story short, My computer suddenly shut off, And when i pressed the power button it would attempt to turn on then just fail and shut down completely[no signal to anything, only fans]
I cleaned out the pc and cleaned out the power supply, reassembled and it turned on as per normal. i used it for about 35 minutes, set it to sleep for an hour or two, turned it on, used it for about an hour and a half then it suddenly turned off again. When this happens it either powers on for 2 seconds then powers down, or it powers up all fans and mouse led but no signal to keyboard or screen whatsoever i assumed it was the power supply so i purchased a new one today and installed it, It turned on first try, i assumed it was fixed, i used it, set it to sleep as per normal and went to turn it on again and it turned on all fans but once again no power to anything else, just fans it seems. I tried everything[I have two sticks of ram so i switched them/used them singularly tried running without fans, Oddly it didn't beep even without video card or ram but nothing made a difference. I just borrowed a single 2gb stick of ram from a friend and it successfully powered on and I am using it normally.. But i just can't imagine the problem was just the ram and i expect it to power off again soon, Can anyone help?

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Hi there, i have some issues with my monitor (awhhh).

It's working fine like 10-20-30 minutes and then it's turning off (for no reason) while the cumputer is running and the flash/button goes pink. I don't know what's this colour stands for. Blue is when the monitor is active, yellow is when the monitor is turn to sleep and when i shut down my computer, but PINK? What's that, anyone?

The monitor is turning OFF, not in a sleep mode or something.
I must remove the cable and push back in every 20 minutes. That's wrong.

Maybe it's the cabel, maybe something with drivers and stuff...i don't know.


please anyone....it's my moms monitor and she's gonna kill me, i blew it up.



A:Monitor is turning off and the button in the right corner is turning pink

It would be nice to know the brand and model of the monitor

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My other half and son were using the computer yesterday, and then left it on to do some other things, upon returning to the laptop noticed that the power button was solid blue (should be flashing orange when in standby mode), with nothing on the screen, moved the mouse with nothing happening as well as CTRL+ALT+DELETE.

Powered computer down by holding the on/off button for 5 seconds, restarted but noticed that I could hear the DVD drive power up but that is where it stops/hangs, nothing comes on the screen. Have done this numerous times, as well as removing the battery and starting with just mains power on?

Can anyone help with what might be going on ??


A:Re: Satellite A100 - Won't reboot after turning off and turning back on ?


Can you enter Bios (f2 on startup) to check if the HDD recognized. Also, try to reinstall Windows with a recovery disk or Windows copy disk.

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Just few hours ago I was listening to songs on Napster. Then I played some online games. I had to reboot at one point since it was going slow on me.

For some reasons unknown, my computer turns off and tried to boot itself, but kept turning off and booted itself. Somehow it did that in a loop. I tried to wipe up some dirt from inside(it may not be completely wiped up). I even tried to rearrange the cables and such. Now, if I press the power button, it only shows the power indicator, but it won't boot. I'm just puttoping it to rest right now hoping that it would back up tomorrow when I turn it on.

I have Velocity Micro with Windows XP SP3 (update progression). Motherboard: ASUS. I posted this using my laptop. I appreciate any help or input.


A:My Computer Keeps Turning On and Off and Now It's Not Turning on

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hello !   is it bad if i never turn off a desk-top console, or even a laptop computer, if the equipment is not going to be used for several hours ?  is it bad for a computer if the computer is left in the "turned-on mode" forever, without being turned off, ever ?  i guess that it is necessary to define "bad for the computer".  does the computer wear out faster if it is not turned off and turned on regularly ?  thank you.

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Whenever i turn the laptop on, in just 2 seconds it turns off by itself.

A:Help on laptop keeps turning off after turning it on?

Reseat Ram and HardDrive
Disconnect any externals especially USB
Test without the battery plugged in
Check for any build up of dust near where the fan is

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I have a P3 running windows xp pro which turns itself on in the middle of the night! Any ideas how to stop this? Someone has said it might be a virus?

A:Computer turning itself on

My computer keeps turning itself on all by itself

Usually this means that the BIOS is set to "wake on LAN" or "wake on modem."

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Hi, I have a brand new corsair psu 850 that i got for my birthday on July 17, 2010. Computer worked like a dream on Sat and sun. Monday it does not turn on. Fan briefly stutters then turns off nothing else appears to be running. HOweve the light on the motherboard indicates that it is receiving power and thinks it is turned on.
Please help. Any ideas?

A:Computer not turning on

It could be the power supply is defective. Corsair makes good power supplies and I use them myself but sometimes this can happen just like with any other component. Do you have access to another PSU you can substitute to test with?

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ok iv built a pc... it works... but wen i play any game.... after playin for a little... the computer will just turn off... on idle... the cpu temperature is about 55 degrees and the mobo is about 38 degrees. i have 2 cooling fans. not over clocked.... y the **** does it just turn off??? ..hmm.... anyways im runin an Intel P4 3.0ghz, ASUS P5ND2-SLI, ATI X1600XT, Corsair DDR2 512mb x 2..... meh yer... oh i have a 500W Omni psu. yer i dunno wat the problem is.

A:computer turning off??

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My computer wanted to reboot for windows upgrade but then wouldn't shut down completely. I forced it to shut down and restart and now it starts up shows the windows screen then flashes for a second a blue screen then shuts downs and restarts again. I have tried going into safe mode but it won't let me it just continues to start shut down and start again. What could cause this?

A:computer turning off and on

Sounds like a problem with the update. If you have the original disk I think you can restore it.
I mean the original disk that. The full copy of windows.

Let someone confirm that first you don't want to lose any info.

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I bought all the parts to build a pc. I put the whole thing together and turned it on, but then it just started turning on and off. I unplugged everything except for the motherboard and processor and it is still in the on off cycle. I even cleared the cmos values to see if that would fix anything. What do I do now? Do I need to replace the motherboard now or is there something else I can do?

evga supernova NEX750G power supply
Gigabyte Z170XP-SLI motherboard
Intel core i5 6500 processor
The light on the motherboard lights up. If everything is plugged in it all turns on but only for a few seconds and then it turns off again. And then back on again. And so on

A:Computer turning on and off

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I just built a new computer today (specs are below), and now when I try to turn it on, the lights flash and the fans start and immediately stop spinning. Then, I have to turn it off and wait a few seconds before I can turn it on again. Can anyone tell me what could cause this sort of problem, and what to do to fix it?

AMD Athlon 64 3000+, socket 939
ATI Radeon 9800Pro
CORSAIR ValueSelect 2 x 512MB DDR SDRAM DDR 400
CHAINTECH S1689 Socket 939 ULi M1689 ATX AMD Motherboard
SAMSUNG SpinPoint P Series IDE Ultra ATA133 Hard Drive
ATRIX CSCI-L8005-C43 ATX Mid Tower Case
400W Power Supply

A:new computer not turning on

Hey,Yo u said your com din turn on

:slurp: :slurp: Hav u checked your cables?Power Cables?Does the power,the fan inside move or do u feel the wind?Does the processer fan move? if every thing i stated fails,Your Power IS Damaged or Spoiled!

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Ok I will start with saying that I had a working computer and a newer empty tower with just a motherboard in it. I wanted to update my working computer so got a new power supply and video card and switched them out. When I tried to start it up it would not turn on but make a grinding like noise like a fan was trying to run but none that I could see were moving. I will also add that my hard drive is an ssd. Thinking one of the two new pieces were bad I put the old two back in but it continues to do the same thing. Thinking that I may have fried the motherboard I bought a processor for my other tower that just had the motherboard and moved the ram, older power supply, newer video card, and ssd over to that tower. The first time I tried to start it it done the same thing. The second time there was a pop but continued to do the same thing. I will also add there are no lights or beeping.

A:Computer not turning on.

A "pop" is never good. Most likely, something just failed (ie: blew).

Start here: https://forums.techguy.org/threads/troubleshooting-guide-for-problem-builds.580000/

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Hey everyone I have a question, my computer in not turning on at all today, it was working yesterday. but yesterday I had headphones plugged into the front io ports and a usb as well for the lights on it, but they got pulled out really fast and it broke the USB port and it damaged the audio jacks, my computer was on during this and it was working basically the same as before, so I turned it off for the night and, now today it won't turn on, by the way, I tried to jump the contacts that are for the power switch but nothing happened. Please help me out, I'm not sure what is wrong with my PC.

A:Computer not turning on

"computer doesn't turn on" means it cannot boot up? or cannot be power on? Just need to figure out whether it is a software issue or hardware issue.

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I just built a computer and when i assembled the computer outside of the case it booted up perfectly. I was able to install windows, basically the computer worked perfectly fine. When i installed everything in my computer case it stopped turning on. Whenever i press the power button the motherboard lights flash once but then nothing happens.
Diagnoses on my own:
1. I removed the motherboard to and made sure all the standoffs were installed correctly and they were.
2. I checked all my wiring and none of the wires had any exposed wires.

System Build:
Motherboard: MSI Gaming Pro X370
CPU: Ryzen 1600x
CPU Cooler: Cooler Master Hyper T4
Graphics Card: GTX 1070 Zotac Mini
HardDrive: Seagate 2tb
Power Supply: EVGA 80+ 500 Watt semi-modular
Case: Cooler Master HAF 912

Pls Help this is getting very annoying,
Thank you,

A:Computer is not turning on

With the board installed in the case, pull all case leads OFF. Short or jump the pw switch pins on the board. Does it POST now?
Just an observation however I built a system with the coolermaster T4 and had to replace the cooler. A MUCH better option is to use the coolermaster 212 with the adapter. Note there are two different adapters; the old one is the better one to use.

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hey there... a few weeks ago i posted a question about my cpu that was not turning on. I went like a week ago to geek squad(rip-off) and they charge me like $70 just for telling me that they do not know what the problem is , anywayz, i gave my cpu to a friend and he checked for me, and he said that the problem is the hard drive. I changed the PSU because I though that the PSU was dead, and it was not that. I have no idea what it is. Could it be the hard drive? I don't think so.. any ideas guys?, thanks.

A:computer not turning on

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i have a Dell, windows XP
When i log in everything loads like its going to work but then after the last thing loads it goes to a black screen and you can't do nothing, but you can sign in on safe mode, have any idea of what to do in safe mode to fix it???

A:computer keeps turning off

First option I would choose would be safe mode and doing a system restore to a day before this started.

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I have a Gateway PC and I have a problem turning it on. Sometimes I have to hit the button 3 or 4 times b4 it starts. Anyone else have that problem?

A:Turning Computer On

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I'm not sure whether this is a hardware or software problem so I thought I would post it here.

Basically at random times my computer just seems to lose power and shuts itself off. Ive have taken it too computer shops and had it looked at, they have done various things like change motherboard etc and none of that has helped. The last piece of advice I had was that it was probably software related and the best way to fix it would be to simply wipe the system and start from scratch but if possible id like to avoid that.

Sometimes the PC will stay on for 4/5/6hours at a time and run fine, other times after just 5 minutes it will shut itself off. Then when I try to turn it back on it won't switch on unless it is left for a while.

Does anyone have any idea what could be causing this?

A:Computer keeps turning off

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My computer turns off, a while after it is turned on. My computer's a pentium D, and initially i thought it was something o do with the cpu, i cleaned the heat sinks and cleaned out the copper dome, i dusted everything with a brush, except i used a vacuum for hard to reach places. I ran the computer with half the casing missing, so i could see what's going on.
I felt everywhere for heat, and it turns out that the power supply is fine and it is in fact my graphics card (Geforce 7600) was extremely hot, but i'm not too sure if something else is causing the problem. I can't get into windows beacause it shuts off before i even have a chance, please help me, do i need to replace someparts or do i need a new hard drive?
All fans are functioning properly, none are clogged with dust.

A:computer keeps turning off?

If you boot into your bios is your system doing the same thing? Shutting off? Jazz

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Alrite i was reaching behind my tower to see plugs and all of a sudden i lost power to the cpu and now it wont start up. Randomly when i press the power button the computer fans spin once along with the mobo lighting up but turns right off again. It never fulls starts up. I posted it under hardware thinking it might be the psu, but im not sure. Any help would be great to get my comp running again

A:COmputer not turning on

Open it up and check all your connections and cards to be sure they have not moved from their slots.

Be sure to run chkdsk /f to repair the damaged file system.

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Dell Studio XPS 435 MT, 3 yrs. old, intel i7 CPU, 64 bit operating system, 4GB ram, but when you right-click computer, properties, it says 3GB ram. I have been having this problem for a month. We leave the computer on at night half the time and half the time turn it off. One morning it would not turn on, only had an amber blink when you pushed the power button. My warrenty from Dell is expired but I did get some tech support, and at one point got the pc on, which gave me a CMOS message, Dell told me I needed to call the Geek Squad, which I cannot afford at this time so I got onto this forum and read alot of posts by many user's and the end result was I bought a new CR2032 battery and installed it. Everything is good, pc powers up as it should, clock issue fixed. Let me just say, the only change to this computer, and it was around the time this issue started, was that I updated the graphics card, for an online MMORPG game that I play. The graphics driver is and ATI Radeon HD4350, I went to the AMD site and updated. RAM issue I just noticed before starting this post is that pc says 3.00gb ram, my invoice says 4.00, and I'm sure the computer has said 4.00 previously.
On to the issue!! After replacing the battery things worked fine. I like to leave the pc on at night, last week in the am I came to the computer and it was on but totally unresponsive, black screen, mouse movement and enter key made no difference. I held the power button down turned it off and of course it... Read more

A:Computer not turning on.

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The computer is turning off by it self when the computer is gone to sleep (hibernation mode) it has not do this when using the computer only does this in sleep (hibernation mode) why is that.

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should i turn the computer off when not in use?

A:turning the computer off

i do if i am away from 2-3 hrs , and definately at bedtime .....some leave there`s on all the time but windows needs a boot-up now and then .......

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my freind has a compaq presario sr1403wm and after she turned it off and unplugged it for a storm and later she tried to turn it on and nothing, there is also a green flashing light on back so can anybody please help to turn it on!!!

A:Computer not turning on!!

read the no POST guide in the guides forum. I hope she had an UPS or a surge protector.

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Hello. I'm having a problem with my computer not turning on. It started when I moved my computer and plugged it back in. I've tried most things. Even jumpstarting the psu, which seemed to work by itself. I somehow got it to start randomly once and left it on until now. It worked pefectly fine once it actually started. Even beeped once, which indicated that nothing was wrong from what I read.
I tried changing the pins to use the reset button to start as well, but nothing. I also tried to unplug everything etc. Didn't start once.
But as I said, once I had tried all this I kinda tried every now and then to start it anyway, and one time it suddenly just started with one press.
Can it be the Psu still. Even if it worked with a jumpstart?

A:Computer not turning on

"Can it be the Psu still. Even if it worked with a jumpstart?"... In a word, yes

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Sometimes while visiting club.live.com with
firefox browser and playing one of the flash games the computer monitor
loses the signal like the computer turned off but the
computer,keyboard,and mouse are still lit up like it's on. That's the
first part, the second is twice when turning on the computer the main
part turns on but nothing on the monitor and the keyboard
mouse don't light up.It just sits there with the hard drive light on. I
end up disconnecting the computer and opening it up to get it to work
again. The computer was bought September of 2004. I'm thinking it's the hard drive. I've run my anti virus program and spy bot search and destroy and found nothing. The turning off problem started a week and a harlf ago the not turning on happed on July 2 and today. When it did it today it was after it cut off while I was playing one of those flash games on firefox.

A:Computer not turning on

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Hey all. I've run into apoblem with my computer. For some reason, it is not turning on. It wasworking fine yesterday but now it won't turn on. I've tried turning it on every now and then but with no luck. My computer is an eMachines,about 3 or 4 years old. Is there any solution to this other than hoping it will just turn on again sometime? Any help is much appreciated. Thanks.

A:Help! Computer is not turning on!

Warm welcome to the forum, paradox.

Have you checked the cabling at the rear of the computer?

If you feel confident momentarily short the 2 pins on the motherboard where the switch goes. Or alternatively, If the computer has a reset switch, plug the wires onto the pins for the On/Off switch and try starting with the reset switch.

Give this a try and report back to us.

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I don't know why, but my computer keeps turning off if I'm not active for a while or am too active (many windows opened or sth).

Logfile of HijackThis v1.99.1
Scan saved at 08:02:28, on 2007-06-19
Platform: Windows XP Dodatek SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)

Running processes:
C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
C:\Program Files\Alwil Software\Avast4\ashServ.exe
C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
C:\Program Files\Java\jre1.6.0_01\bin\jusched.exe
C:\Program Files\Common Files\Ahead\lib\NMBgMonitor.exe
C:\Program Files\BitTorrent\bittorrent.exe
C:\Program Files\Messenger\msmsgs.exe
C:\Program Files\HijackThis\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,SearchAssistant = http... Read more

A:My computer is turning off ;( help!

Hi, Welcome to TSG!!

Run HJT again and put a check in the following:

- HKCU\Software\Microsoft\Internet Explorer\Main,SearchAssistant = http://search.bearshare.com/sidebar.html?src=ssb
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://search.bearshare.com/sidebar.html?src=ssb
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://search.bearshare.com/sidebar.html?src=ssb
O4 - HKLM\..\Run: [svchost] C:\Program Files\Internet Explorer\Setup\svchost.exe

Close all applications and browser windows before you click "fix checked".

Please download ATF Cleaner by Atribune.
This program is for XP and Windows 2000 only

Double-click ATF-Cleaner.exe to run the program.
Under Main choose: Select All
Click the Empty Selected button.

NOTE: If you would like to keep your saved passwords, please click No at the prompt.
Click Exit on the Main menu to close the program.
For Technical Support, double-click the e-mail address located at the bottom of each menu.

Download and scan with SUPERAntiSpyware Free for Home Users
Double-click SUPERAntiSpyware.exe and use the default settings for installation.
An icon will be created on your desktop. Double-click that icon to launch the program.
If asked to update the program definitions, click "Yes". If not, update the definitions before scanning by selecting "Check for Updates". (If you encounter any problems while downloading the updates, manually download and unzip t... Read more

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When i am in a hurry i just hold my on switch to my comp for 5 secods and my computer turnsa off. My computer definitly saounds like it is turned off except my keyboard and my mouse r still on and when i press a key/move my mouse the computer turns back on. Is my computer still on when i do that? If so then does tht mean i have wasted all that electricity?
ps:When i turn my computer off (Start>Shutdown) it turns off, the keyboard and everything but not the mouse. When i move the mouse the comp does not turn back on. Wots up with that?

pss- i have an AMD Athlon1.8ghz and win xp

A:is my computer turning off?

it sounds like your computer is going into "sleep" mode instead of shutting off.

I would recomment just clicking start/shut down when ever you want to turn off the computer... its easier on the computer that way.

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Shortly after getting my motherboard and CPU replaced, my computer started shutting it's self off. It occurs mostly if I have been using it for a while, or if I leave it on for a while, but if after it shuts off, I turn it back on, and start using it again it will shut it's self off again, and it will happen more frequently until it rests for a few days. Do you think it is my motherboard or my power supply? I have a 533 MHz Celeron processor with 256 MB of RAM The fan was just replaced about a year ago.
Thanks for the help

A:HELP my computer keeps turning off!!!

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Hello guys. I tried upgrading my computer's RAM. When I did I tried opening my computer. It stars running for a few seconds and then shuts down. Then it starts up again and makes these beeping noises. The monitor was still blank and my tablet and keyboard indicates it not on. Can someone pinpoint the problem for me please? The beeps are long and they keep going.

My computer is a Dell Dimension 9150.

A:Computer is not turning on

Long continuous beeps: I suspect no memory, incompatible memory, bad memory or memory not inserted properly.

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So I just spent 1400 dollars on parts and had my friend put it together for me since he's better with these kinds of things. It runs amazingly well, however randomly it will turn off and then right back on. All the parts are 100% new, so i'm finding it hard to believe it's the parts themselves.

The house I am in right now is rented since my house is being repaired from a fire, so it is possible it's the wiring in the house as well. From what I gather it could be just about anything though.. Would rather not have to spend a fortune having it repaired when I just spent 1400 dollars on it to begin with.

All help is appreciated! Thanks!

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My computer has started to turn itself off and when i turn it back on it shows this error message, dose anyone know how to sort it? Thanks much .

A:Help... Computer turning off.

Have you installed any new hardware, or made any other changes to the system? Give as much info as you can, this could be a number of things.

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hi, my computer is not turning on anymore
i woke up today to use it, but it didnt turn on anymore, but it worked yesterday
previously, sometimes my computer didnt turn on, so i turn the power supply off then turn it on again, and then the computer works

now, the computer doesnt turn at alll, except for making one beep noise and then shuts off. The motherboard is a A7N8X-E model.
could it be the PSU? or has my mobo fried up...?

A:Computer not turning on

I'm not sure whats going on, but give me your system specs and I will help u.

Also, do you smell anything weird in your mobo? like frying metal or plastic?

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when I am playing a game (that worked before0 or watching something on HULU or Youtube my computer will power off in the middle somewheres...all at different times, I just had a new video card installed and I have done system restore and I have already defragged and cleaned the disk I want to know why my laptop is doing this...it does it when i am NOT online aswell

A:my computer keeps turning off

Hello jasontje

If this did not happen before you got the new video card, try updating the drivers for it

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So for the last month or so my computer has been shutting off on its own, and from what I can tell, quite randomly. All of my fans are fine, my CPU is hot, but not too hot to be causing problems. One thing I find curious about it is that when it shuts off I have to unplug the power cord from the computer and plug it back in to get it to turn on again. If it shuts off on its own I can leave it off for days and it will never turn back on unless I unplug and replug the power cord. I took it in and had the PSU tested and it was fine. What in the world could be causing this problem? I may just need a new PSU, but I don't want to buy one if it's not going to solve the problem.

A:Computer Turning Off But I Don't Think It's The CPU

Sounds like the psu's short circuit protection is cutting in, either an actual short is causing it or the psu is faulty. What make and wattage is your psu?

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Hey guys! Not sure if I'm in the right place to post this, if not please kindly redirect me.

So, I've recently purchased the parts to build a fairly top of the line gaming rig, have set it all up and had it running normally for about 3-4 days, now every now and again the computer won't turn on. It usually only happens on cold boots but has recently happened with restarting aswell.

The only way I can get the computer to turn on is if I turn the power supply off at the back, wait a few minutes and turn it back on (usually 50/50 chance that this works)

I have:
-updated bios to the latest version (0602) with no luck in fixing it.
-replaced the CMOS battery, aswell as reset the bios about 3-4 times now.
-checked the psu voltages, without any obvious problems (12.096v, 5.00v, 3.328v, aswell as Vol_CHAB=1.346v and Vol_CHCD=1.331v)
-I had previously had it overclocked via the ez tune wizard in the bios, with no negative side effects that I could find, so I redid the wizard on the last bios reset.
-have tried disconnecting the 4pin to the cpu as I read in one thread that if the 12v rails aren't identical that it could cause damage when the 8pin and 4 pin are plugged into the cpu socket on the mobo.

After I replaced the CMOS battery, it had about 5 cold boots working perfectly fine but then started faulting again.

I've ordered a 1kW psu to replace the 850w as I'm really hoping that its the problem, but I'm honestly not even sure anymore as ... Read more

A:Computer not turning on (sometimes >_<)

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When I switch on my computer it works fine for up to 5-10 minutes, then it will just switch off randomly.
When I go to turn it back on it will turn on again, but will continue to turn off infrequently.
If computer specs are required let me know and I will post everything as soon as possible. Thanks in advance, Regards maxighirl.

A:computer keeps turning off by itself

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i turn on my computer and the green light comes on and everything and then its just starts beeping and nothing else happens just beeps

i have no idea what type of computer it is as well

please help me solve this problem

thank you


A:My computer isn't turning on

Have a look here: Tutorial: No POST (Power On System Test)

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I was repairing a computer for a friend. We had to replace the mobo/ power supply. I initially had it booting to windows and it was at the activation screen. I left it for about a week(not on) and since then had to disconnect the power switch/power led and hdd led. Now the computer won't turn on at all(I reconnected the leds and switches). The mobo light comes on but nothing else happens. The computer is a POS celeron on a Intel D845GVSR. I had to remove the switches because the power button got stuck in.

A:Computer not turning on

First, u need to test the power supply, you can do this by disconnecting it from the mobo and shorting the green wire to one of the blacks. It should power up fully asif the mobo was connected, if so, then the psu is ok. Next, make sure there are no loose screws in the case, i'd take the mobo out and power it up by placing it ontop of the antistatic bag it came in. Try these and let me know what happens and i will do my best to help. Rik.

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Hello I'm a little new to these forums but I have an annoying problem and I was hoping this place could help me come to a solution. I just bought new components from the store about a week ago now and what it does is that it will just turn off for no reason. I was told and have read that it could be from over heating my cpu usually idles at around 40C and the highest I seen it get was 61C. the other problem could be that I don't have a big enough power supply to handle my power but I don't think thats it. So if anyone could help me out with my problem that would be awesome thank you.

here are my system specs:
3.2 Ghz hyperthreading processor
1 GB of ram
120 GB HDD
500W power supply

A:Computer turning off

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I was just using my computer when it just switched itself off randomly. Now everytime i try to turn on the PC it just turns off and turns back on again.

The steps are:

1. Turn computer on.
2. Light on the Computer comes on.
3. Switches off.
4. Switches back on.
5. Switches off again....

It keeps repeating that until i turn the computer off at the mains.

I'm not really sure what the problem is and thought you guys might be able to help me .

A:Computer not turning on

How long does it stay on for?? Does it look like its trying to start booting??

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Im having problems shutting down the computer; a problem which started up for no unexplainable reason.

Windows XP SP2 seems to be working normally, when I click Shut Down the computer proceeds to turn off. Afterwards the harddrive powers-down, the fans stop running, etc.

Then for no reason, the computer turns back on after a brief period of time off (varied: 1hr, 15min, 8 sec) as if someone pushed the power button.

I did not install any new software, or update/added on new hardware when this problem started to happen. Im unable to trace the source of this error, and was wondering if someone could help me?

I've already tried the following:
- Updated Windows
- Defrag, scandisk, antivirus scan
- Updated drivers
- Checked BIOS power saving settings - good
- Checked Display Properties - Power Settings - good
- Checked System Restart and Recovery settings: Auto restart off - good

These are my system specs:
Time and date = 12/06/2004 19:48:39
OS.Version = Microsoft Windows XP Professional Service Pack 2 (5.01.2600)
OS.Language = System:Japanese User:English
CPU.Description = Pentium 4
CPU.VendorId = GenuineIntel
CPU.Signature = TypeID:0 FamilyID:15 ModelID:2 SteppingID:7
CPU.Cache = L1Data:8 L1Trace:12 L2:512
CPU.Extensions = MMX MMX2 SSE SSE2
CPU.Clock = 2.393 GHz
CPU.ProcessorCount = Physical:1 Logical:1
DirectX.Version = 9.0c
DirectX.LoadDebugRuntime = 0
Display Adapter.Driver = ati2dvag.dll
Display Adapter.Description = RADEON 9600 Series (Omega 2.5.97)
Recen... Read more

A:Turning off the computer?

Good detail but it lack the mobo or Maker -

But look in the BIOS and see if you have "wake on lan" active

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