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Asus P8P67 Pro Random Shutdowns

A

abhinavsah

n00b
Joined
Oct 22, 2011
Messages
5
I built a system almost 3 months back. All running fine and suddenly one day while surfing the net, a hard shutdown and restart, no error message or BSOD. Now from last 2 weeks it happens atleast 100 times a day and sometimes more even while bootup. Cant even change bios setting cause it reboots in between that also. Followed every thread for solutions and tried everything but no luck (Manual settings of ram and cpu including voltage). All hardware tests normal, sometimes the burin test also passes.

Machine config:
Processor: intel core i7 2600k
Mobo: ASUS P8P67 Pro MoBo (REV B3) with the latest bios, liquid cooled with a corsair H70
RAM : Corsair 8GB (CMZ8GX3M2A1600C9, 2x4GB Dual Channel)
POWER Supply: Corsair AX750 (Swapped it twice with brand new replacements with no luck)
GPU: MSI 560ti OC
Cabinet: Corsair 600T
TPU & EPU Switch On. (tried with both off and on but no luck)

I am unable to even use the system for 5 mins now and its a pain to isolate a problem. Runs fine for 3 days and then again keeps rebooting 20 times in 5 mins... I hope someone has a solution with this. No hardware issue as such, the parts were all tested by the System guys and they couldnt find a problem in that.

I am now getting "failed to overclock CPU" message at boot sometimes even though the CPU is at stock frequency.

Swapped RAM modules also but no luck either.
 
Will the system stay on in the BIOS/UEFI when it's in one of it's rebooting phases?
 
the "TPU" switch will automatically overclock your system, so turn it off.
I'd turn off the EPU switch also.

Once that is done, go into the UEFI, and set the RAM to run at 1333MHz, 9/9/9/24 timings, and set the voltage for the RAM at 1.56v.... these are very safe settings.

Test with these settings and let us know.
 
It could even be some bad ram. I've had a set of DDR3 that went bad after a few weeks and would cause no end of problems... nothing like what you're experiencing though. The closet problem I've had is a Phenom II's heatsink wasn't on all the way, so it would overheat after a few seconds and then reboot. I caught it pretty quick, but you couldn't tell by just looking at the system that anything was wrong. Putting the UEFI settings to the most conservative settings is a good first step in addition to removing anything extraneous to the system (to the extent that you can.)



Make sure that the Corsair H70's pump hasn't failed and that the CPU isn't over heating. I'm not sure about the ins and outs of that system, but you could try putting an air cooler on for diagnostic purposes.
 
Last edited:
ckryan said:
Will the system stay on in the BIOS/UEFI when it's in one of it's rebooting phases?
Click to expand...

No..the system wont even stay in BIOS/UEFI... but its very very RANDOM... no predictable cycle.. sometimes it will go through the BIOS..and sometime will restart (hard power down and up) while changing a setting.
 
phaze_italy said:
the "TPU" switch will automatically overclock your system, so turn it off.
I'd turn off the EPU switch also.

Once that is done, go into the UEFI, and set the RAM to run at 1333MHz, 9/9/9/24 timings, and set the voltage for the RAM at 1.56v.... these are very safe settings.

Test with these settings and let us know.
Click to expand...

I have them turned off since last 2 days now but the system still shows the same problem.. although the problem frequency seems to have reduce a bit.. As for the RAM, i have tried every possible manual setting for it.. have even changed the sticks.. put a GSKILL ram also instead of a corsair..but no luck.. had posted on other forums and followed whatever was suggested but wit no improvement is system behavior.
 
ckryan said:
I wonder if there is a bent pin on the socket?
Click to expand...

That was checked too...nothing found.. I ran the system with a corsair TX750..took it from my friend.. it ran perfect for 3 days i tested it for.. so we replaced the power supply with a brand new AX750 (RMA my previous AX750 which was barely 4 months old)... but no luck either...nothing shorting in the board as well...
 
That really sucks.

It's really rare that a motherboard stops working over time in such a manner, but I think you'll have to start looking at it the last thing to check.
 
FWIW, I had a video card (9700Pro) that would randomly cause shutdowns. I never would have guessed it but after finally replacing it (because it was slow in games), the random shutdowns stopped.
 
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