PC rebooting randomly without BSOD

[Bam]

Hello guys.

I got a problem for some days. My PC is rebooting (like when you cut the power off) randomly. By randomly i mean sometimes my pc is on for many hours and then suddently it reboots, sometimes it's 5 mins after powering on, sometimes only once, sometimes 3 or 4 times...

In the Event Viewer I have different errors like :

The system has rebooted without cleanly shutting down first

http://support.microsoft.com/kb/2028504/en

Unloading the performance counter strings for service %1!s! (%2!s!) failed. The first DWORD in the Data section contains the error code.

http://technet.microsoft.com/en-us/libr ... 10%29.aspx

The performance strings in the Performance registry value is corrupted when process %1!s! extension counter provider. The BaseIndex value from the Performance registry is the first DWORD in the Data section, LastCounter value is the second DWORD in the Data section, and LastHelp value is the third DWORD in the Data section.

http://technet.microsoft.com/en-us/libr ... 10%29.aspx

I have no idea how to fix the problem... I think it's hardware but i've seen that sometimes it's bad drivers

Any help would be welcomed !

Thanks.

PC Specs :

CPU : i5 3570k
GPU : AMD HD7970
RAM : Corsair 2x4Go
Power supply : Corsair HX650
MB : Gigabyte Z77-D3H
System : Windows 7 64bits.

[lederp]

I'd monitor your temperatures first to see if anything is spiking (CPU?) if so it may have an auto shut off.

[Calv]

Would be odd if it's a temperature cause, considering it sometimes happens after 5 minutes and then after 5 hours. On the other hand if your CPU is absolutely toast then it can easily overheat in 5 minutes.

I would consider just reinstalling your Windows cleanly, might be a nice way to reset a lot of problems. I do this every couple of months and it helps me keeping my PC up and running without any errors, unless hardware actually breaks. If reinstalling your OS doesn't fix it, it could well be your PSU or HDD.

[Bam]

I'd monitor your temperatures first to see if anything is spiking (CPU?) if so it may have an auto shut off.

I've installed HWMonitor to check temperatures and voltages :

[Calv]

Those are fine temperatures, how long has your PC been running?

[eStecko]

Could be many things. My bet is on one of those things:
Virus, corrupted drivers or overheating/damaged hardware.

If you have a secondary HDD as a backup one or from a friend, try swaping them out. It could be dying out. Another possibility is a damaged RAM module, so trying a RAM test or doing a swap-around with missing modules could help you locate a possible issue here.

Also monitor your system temp by something like Speccy and see if the computer does not go down due to those issues.

I would start by trying to reinstalling your drivers and redistributable files you have in your system. Doing a clean reinstall would be the best option. Then i would move on to doing a classic scan phase by your antivirus, TDSS killer, Spybot S&D, Anti-Malware and ComboFix (from bleepingcomputer).

[Bam]

Could be many things. My bet is on one of those things:
Virus, corrupted drivers or overheating/damaged hardware.

If you have a secondary HDD as a backup one or from a friend, try swaping them out. It could be dying out. Another possibility is a damaged RAM module, so trying a RAM test or doing a swap-around with missing modules could help you locate a possible issue here.

Also monitor your system temp by something like Speccy and see if the computer does not go down due to those issues.

I would start by trying to reinstalling your drivers and redistributable files you have in your system. Doing a clean reinstall would be the best option. Then i would move on to doing a classic scan phase by your antivirus, TDSS killer, Spybot S&D, Anti-Malware and ComboFix (from bleepingcomputer).

I'm gonna try a memory test for the RAM and antivirus/malware scan.

I'll keep you updated

[Calv]

If you reinstall your PC completely (format the HDD, SSD in your case) you won't have to sweep for a virus

Sweep for a virus if you want to keep this OS, do you scan frequently?

[eStecko]

If you reinstall your PC completely (format the HDD, SSD in your case) you won't have to sweep for a virus

Sweep for a virus if you want to keep this OS, do you scan frequently?

And if that's not the problem, he will lose a lot of time. Formatting drive is in my personal opinion a last choice of action.

[Bam]

If you reinstall your PC completely (format the HDD, SSD in your case) you won't have to sweep for a virus

Sweep for a virus if you want to keep this OS, do you scan frequently?

I can't do a clean windows install ATM because i installed it with a bootable USB from a friend and i don't have it anymore.
First i'll use MemTest86+ and if nothing is wrong i'm gonna try get the USB back to reinstall windows

[Calv]

If you reinstall your PC completely (format the HDD, SSD in your case) you won't have to sweep for a virus

Sweep for a virus if you want to keep this OS, do you scan frequently?

And if that's not the problem, he will lose a lot of time. Formatting drive is in my personal opinion a last choice of action.

A lot of time? You only have to make sure you store the files you want to keep, formatting takes 2 seconds and the installation takes 15 minutes. But I get your point, it's a bit of a hassle for some people I guess.

[Bam]

My important files, games, are on my second HD. Windows is installed on a SSD, so formatting isn't a problem.
I just need to find the ISO for windows.
I just finished MemTest86+, no error.

As soon as i get my ISo i reinstall windows

[eStecko]

If you reinstall your PC completely (format the HDD, SSD in your case) you won't have to sweep for a virus

Sweep for a virus if you want to keep this OS, do you scan frequently?

And if that's not the problem, he will lose a lot of time. Formatting drive is in my personal opinion a last choice of action.

A lot of time? You only have to make sure you store the files you want to keep, formatting takes 2 seconds and the installation takes 15 minutes. But I get your point, it's a bit of a hassle for some people I guess.

True, the re-installation itself is not too long. Usualy gutting out Windows fat, installing redists/software, backing up saves, work, etc and putting it back into prefered setup takes quite a lot of time. Just PCmasterrace things.

[Ahmed]

did you check the PSU ?? a friend of mine got same issue it turned out to be corrupted/worn PSU cables

[Bam]

did you check the PSU ?? a friend of mine got same issue it turned out to be corrupted/worn PSU cables

How can i check the PSU ?

On HWMonitor voltage seem good and the prob happens randomly so... For example today it happened 3 times and since i made this thread i didn't have any reboot...

You can test if a PSU is dead or not, but you can't test if a PSU has random power cut...

[Ahmed]

You can test if a PSU is dead or not, but you can't test if a PSU has random power cut...

could be just a cable is acting crazy like when there is load it gets little hot so it fails etc.. there is a lot to it
so it worth checking i guess specially when all the logical reasons (heat/bad hardware) seems minimal

[Calv]

True, the re-installation itself is not too long. Usualy gutting out Windows fat, installing redists/software, backing up saves, work, etc and putting it back into prefered setup takes quite a lot of time. Just PCmasterrace things.

I guess I'm a simple person, when I reinstall I only have to keep about 100MB worth of files

[bl0m5t3r]

i've scanned over the thread, and i saw some mentions but no reply from your side (sorry if i missed). but did you update any drivers/windows/programs/etc. lately (specifically between you started having the problems and before).

cause imho, if that isn't the case i would totally focus on hardware. do indeed run a stress test and a memory test and scan your drives for errors, all preferably not from windows. otherwise rollback your changes (hoping you have windows rollback on, this is what that is made for) and check that first.

good luck.

[Bam]

i've scanned over the thread, and i saw some mentions but no reply from your side (sorry if i missed). but did you update any drivers/windows/programs/etc. lately (specifically between you started having the problems and before).

cause imho, if that isn't the case i would totally focus on hardware. do indeed run a stress test and a memory test and scan your drives for errors, all preferably not from windows. otherwise rollback your changes (hoping you have windows rollback on, this is what that is made for) and check that first.

good luck.

The problem is that i already had this prob some weeks ago but it happenned only once or twice, so i just thought it was a simple bug. But since a few days (when i don't use the PC for a couple of days) the problem happen more often.

More my PC runs during days, less i got reboot. By that i mean if i don't use my PC for 4 days and then use it again i'll have a lot of reboot, but if i use my PC everyday for 5 day i'm not gonna have much trouble.
This is strange I know.

So, if this is a problem from a driver it was weeks ago and i can't do rollbacks. I already did a memtest and a chkdsk, not error

[Ahmed]

More my PC runs during days, less i got reboot. By that i mean if i don't use my PC for 4 days and then use it again i'll have a lot of reboot, but if i use my PC everyday for 5 day i'm not gonna have much trouble.
This is strange I know.

another reason to check the power stuff