PC crashes reboots by itself, sometimes black screen

SuperSaiyan4

SuperSaiyan4

SuperSaiyan4

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12 Jan 2009
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189
Hi,

Not sure what's going on but lately my PC seems to just crash with a semi-looking blue screen (windows 8) and then reboots.

Seems to happen if I am just browsing the net or playing Diablo 3.

However when gaming sometimes my screen will go black and the PC stays on then screen goes to standby.

CPU is AMD Phenom II X2 unlocked cores(X4) @ 3.5ghz up from 3200 (I used Asus Suite II to auto clock).

GPU is AMD Radeon HIS 7870 Ghz Edition IceQ 2gb, one thing I noticed was that TURBO is supposed to give you a 10% clock speed increase to 1100mhz but from day 1 I noticed it was only giving me 10mhz not 100mhz extra.

GPU is on stock speeds with idle temp of around 29c.

CPU temp around 30c idle.

Ive got an RMA for the graphics card as I am pretty sure that is the issue, sometimes I can play or browse the net for ages and nothing happens.

PSU is Corsair TX750 v2
 
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Ive just run MSI kombuster various tests for a few mins each, I am guessing if the card was at fault it would have shown it instantly in this test?

Not sure what else to do, the PC seems to run fine but randomly decides to either crash and reboot or just go to a black screen.
 
CPU is 34c idle used to be 29c emmm ok ill try that. Highly doubt the CPU is overheating considering when I get the crash all im doing is surfing the net.

Ive just come back from doing a FULL system scan with Avast left the PC on and it hasn't crashed and found NO threats.
 
Disable the Automatic Restart on System Failure

http://pcsupport.about.com/od/windows7/ht/automatic-restart-windows-7.htm

also ...

Open Event Viewer


Event Viewer is an advanced tool that displays detailed information about significant events on your computer. It can be helpful when troubleshooting problems and errors with Windows and other programs.

Open Event Viewer by clicking the Start button , clicking Control Panel, clicking System and Maintenance, clicking Administrative Tools, and then double-clicking Event Viewer.* If you are prompted for an administrator password or confirmation, type the password or provide confirmation.
 
Lemin said:
Disable the Automatic Restart on System Failure

http://pcsupport.about.com/od/windows7/ht/automatic-restart-windows-7.htm

also ...

Open Event Viewer


Event Viewer is an advanced tool that displays detailed information about significant events on your computer. It can be helpful when troubleshooting problems and errors with Windows and other programs.

Open Event Viewer by clicking the Start button , clicking Control Panel, clicking System and Maintenance, clicking Administrative Tools, and then double-clicking Event Viewer.* If you are prompted for an administrator password or confirmation, type the password or provide confirmation.
Click to expand...

Ok looks like ive had Critical errors: Source Kernel-Power (11 in the past week)

Other ones comes up as Security-SPP (Ive had 5,406 of these in the last week)

Any ideas on what its talking about?
 
Could also be some incompatibility issues, my laptop did it last yr when I updated Adobe flash, I rolled back windows to a previous time.
Re updated Flash and same blue screen, I re-restored again and did not undertake that update till some time later when another further update has been released, all fine.
 
AMD reminds there's no warranty for unlocking (and further o/c-ing) their CPUs :) Before RMA you may just re-lock :) your CPU and see if it happens @ stock cores & speed.
 
Well here's the thing the PC isn't that old I built it from all new parts, even the PSU is top quality and I was previously running on 3.8ghz for ages. Since getting Windows 8 then updating the Asus motherboard to the latest bios I wasn't able to get 3.8ghz anymore it would keep crashing at around 3.7ghz.

So all in all does it look likely that its a PSU issue? I forked out £90 for this PSU hope its still under warranty :-(

Any ideas on what the error Security-Spp is all about?

Really appreciate the help btw thank you!
 
I would also memtest your ram http://www.memtest.org/download/4.20/memtest86+-4.20.usb.installer.zip
Doing this will take your ram out of the equation.
I have been having random blue screens and lock up's but my system is heavily overclocked so quite hard to pin point the fault. Yesterday my pc went bang! The psu died :( it was a 5 month old 850w seasonic, so good psu's do fail like anything else.

And also when posting temps, use loaded temps not idle
 
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I would return to stock settings, and dump AI Suite.
I've heard many stories of AI suite giving unstable overclocks. Try uninstalling it completely, overclock through the BIOS and see if the problem persists.
 
Thanks all, ive put my clock speeds back down to norm and default 2 core cpu, all seems fine...for now. Ive never been lucky with overclocking no matter how easy things have gotten worst luck ever :(
 
How old is the PSU anyway? Imo changing CPU back to stock for stable system still indicates a PSU problem

should have a 5 year warranty..
 
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dougal1331 said:
I would return to stock settings, and dump AI Suite.
I've heard many stories of AI suite giving unstable overclocks. Try uninstalling it completely, overclock through the BIOS and see if the problem persists.
Click to expand...

--------------

That's the way to do it and incrementally...and running stress tests..time consuming but only way to get stability.
 
dacads said:
How old is the PSU anyway? Imo changing CPU back to stock for stable system still indicates a PSU problem

should have a 5 year warranty..
Click to expand...

About a year old, just found the warranty so ill try to get this replaced or fixed from Corsair.

My PC has been stable since I put it to normal clock speeds and on 2 cores instead of unlocking them.

I noticed that when I was trying to overclock my PC with the latest bios under windows 8 it would just crash at 3.7ghz and reboot.

Whereas before I upgraded to the latest bios I was getting 3.8ghz using Asus Suite no problems at all.

Ive tried going back to the original bios but that still didn't work so overall it does now seem like a PSU problem.

Ran stress tests on CPU, Ram and graphics and no faults.
 
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