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PC Powering Off

1

10pmStalker

n00b
Joined
Jun 28, 2011
Messages
57
My PC has been randomly powering off for a while now. It will shut down as if the power to the house went out but the PC is the only thing that goes off. I'll have to flip the PSU switch and leave it off for about 10 seconds before it will power on again. I switched out the PSU, same problem. I got new RAM so that's not the problem. I updated all my drivers, got the latest BIOS. Its not a heat issue, I keep a good eye on that pretty constantly. Everythig is at default speeds, no overclocking at the moment. Any ideas of what could be going on?
 
1 issue i had with my customers pc's and i didnt know it either if its Windows 7 it looks like it shuts down after 30 minutes of inactive use. Find under control panel the power settings for the pc to shutdown and select Never. Good Luck
 
fightingfi said:
1 issue i had with my customers pc's and i didnt know it either if its Windows 7 it looks like it shuts down after 30 minutes of inactive use. Find under control panel the power settings for the pc to shutdown and select Never. Good Luck
Click to expand...

Are you talking about the power settings to put the computer to sleep? If so, that is set to Never. Thanks for your reply, im willing to try anything and everything. Im really confused to why this is happening.
 
maybe check for shorts in the board? maybe a loose screw? dustbunnies?

check your mobo for any of these:
bad-capacitors-computer-repair-wilmington-nc.jpg
 
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What happens when you run a self-booting diagnostic, such as a memory test, or if you boot to the BIOS setup and monitor the temperatures from there?

One thing that can make a computer suddenly shut down is the CPU heatsink not making good contact (thank you, Intel plastic push pins).
 
larrymoencurly said:
What happens when you run a self-booting diagnostic, such as a memory test, or if you boot to the BIOS setup and monitor the temperatures from there?

One thing that can make a computer suddenly shut down is the CPU heatsink not making good contact (thank you, Intel plastic push pins).
Click to expand...

Im running a H100 with fans in push pull. The temps are always very cool so I dont think its that. I did the memory test, all was fine. Temps in the bios seem fine too.
 
10pmStalker said:
My PC has been randomly powering off for a while now. It will shut down as if the power to the house went out but the PC is the only thing that goes off. I'll have to flip the PSU switch and leave it off for about 10 seconds before it will power on again. I switched out the PSU, same problem. I got new RAM so that's not the problem. I updated all my drivers, got the latest BIOS. Its not a heat issue, I keep a good eye on that pretty constantly. Everythig is at default speeds, no overclocking at the moment. Any ideas of what could be going on?
Click to expand...

Is it powering off or sleeping? Like if your explorer window is open, does it reopen when it reboots? That would be sleeping.

My Z87-Pro was powering off, but I realized it was sleeping since windows got reopened when it came back. Turning off C6 and C7 sleep modes fixed it, but not sure Z77 has those.
 
Varmint said:
Is it powering off or sleeping? Like if your explorer window is open, does it reopen when it reboots? That would be sleeping.

My Z87-Pro was powering off, but I realized it was sleeping since windows got reopened when it came back. Turning off C6 and C7 sleep modes fixed it, but not sure Z77 has those.
Click to expand...

Its powering right off. Goes totally dead as if the power in the whole house went out. I disable sleep mode.
 
10pmStalker said:
Are you talking about the power settings to put the computer to sleep? If so, that is set to Never. Thanks for your reply, im willing to try anything and everything. Im really confused to why this is happening.
Click to expand...

I think this scenario is happen to me before. At MY COMPUTER go to startup & recovery setting. Then on system failure uncheck the automatically restart box. Reboot your computer. hope it will works!
 
makie006 said:
I think this scenario is happen to me before. At MY COMPUTER go to startup & recovery setting. Then on system failure uncheck the automatically restart box. Reboot your computer. hope it will works!
Click to expand...

Is that on Windows 7? I cant seem to find it.
 
10pmStalker said:
I got new RAM so that's not the problem.
Click to expand...

Was the problem occurring before you got the new RAM, or only after? Either way, have you run Memtest to be sure the new RAM is good? I've seen random shutdowns as a symptom of bad RAM.
 
evilsofa said:
Was the problem occurring before you got the new RAM, or only after? Either way, have you run Memtest to be sure the new RAM is good? I've seen random shutdowns as a symptom of bad RAM.
Click to expand...

It was happening before I got the new RAM. I will do another Memtest to be sure.

EDIT: I just did 4 passes of Memtest. No errors
 
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