Asus 770 help

The_Lanbone

New member
I've been having some weird issues related to my Asus 770 4gb dcii recently, and I'm a bit stumped as to where to go next. I'll try to keep the backstory and details brief -

A few months ago I upgraded to an h100i from an air cooled 4.3Ghz OC on my 2600k. I updated my msi z68a-gd55 bios in search of better overclocks and better voltage control. (Still no voltage offset options!) Long story short I made an emergency recovery to a pre-Ivy Bridge bios after what I thought was a dead board.

I am now at a point where I consider my new OC stable at 4.4Ghz. It passes 30 mins of prime95, Aida64, occt, and ITB on high.

My problems start when I try to run any gpu heavy tests (3dmark 11 & firestrike). I am running 3x 24" monitors, but not in surround. I have a 32" LG TV running off the onboard HDMI. During the benchmark it seems like the nvidia driver crashes and the system freezes - the middle monitor flashes to a gray screen, the 2 side monitors go black, and the TV loses connection. The system never recovers from this, and when I reboot I am greeted with a message saying there was a memory change and to press F1 to go to setup or F2 to load defaults.

Here's what I've tried so far:
Verify all mobo drivers are current
Cleared cmos and replaced battery
Run 2 x 24hr memtest (no errors)
Roll back nvidia driver to previously installed (clean install option)
Rolled back to an older 334.xx driver (after running driver sweeper)



Is this a gpu issue, or could there be something else at play? I'm not sure what else to try, besides wiping the ssd and doing a fresh install of windows 7. I'm not sure what else to try, so I'm looking for any advice or ideas!
 
What power supply are you using? sounds like not enough power or unstable clocks
 
ax850 with some blue corsair cables. Could this overclock still be unstable even though it can run ibt, prime, aida, and occt for 30+mins? I just assumed if it could do that it was stable.
 
ax850 with some blue corsair cables. Could this overclock still be unstable even though it can run ibt, prime, aida, and occt for 30+mins? I just assumed if it could do that it was stable.
Let it run longer, 30 minutes might not be enough. What voltages are you using for your 4.4? Back it off to 4.3 and see if it does it again, you will know pretty quickly if it is your overclock or not.
 
ax850 with some blue corsair cables. Could this overclock still be unstable even though it can run ibt, prime, aida, and occt for 30+mins? I just assumed if it could do that it was stable.

The gray screen/100% fans happend to me when im running high core clock & high GPU voltages that power supply can barley handle
 
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i cant see it being not enough power from the psu, an 850 should be enough for a sli 770 rig

Agreed. I ran sli'd gtx 465's for a while without a problem. They've got a 200w tdp, so I don't think the PSU is a problem.

I'm going to try running some longer stress tests tonight once I finish watching the end of the F1 race. How long do you guys typically run each test when you're looking for stability? I do see quite a bit of droop even though I have the low vdroop option enabled. Cpu-z reads down to 1.304v from a 1.325v setting in bios. Is this normal?
 
Agreed. I ran sli'd gtx 465's for a while without a problem. They've got a 200w tdp, so I don't think the PSU is a problem.

I'm going to try running some longer stress tests tonight once I finish watching the end of the F1 race. How long do you guys typically run each test when you're looking for stability? I do see quite a bit of droop even though I have the low vdroop option enabled. Cpu-z reads down to 1.304v from a 1.325v setting in bios. Is this normal?

if i remember correctly, with our sandybridge cpu's ya safe on voltage up to 1.4v
assuming that ya can shed the extra heat. it may be worth kicking up the voltage a little

i personally don't bother to stability test for that long, 1 hour max, how is the stability if you just o'c just the cpu, and just o'c the gpu? might highlight a problem area,
 
I forgot I went back and upped the volts to 1.330v. Its running OCCT for about 20mins now and the hottest core is 61°. I heard the 1.4v thing also but figured I would err on the side of caution and set a max voltage at 1.350 for everyday use. The vcore shows 1.321v under max load with 90% ram usage. Is that difference droop or is cpu-z just misreading the voltage? I would honestly be a bit surprised if this was an issue with an unstable CPU overclock. The GPU was set to the default clocks. Is there some kind of system or GPU dump file I can check to see what errors occurred?
 
I forgot I went back and upped the volts to 1.330v. Its running OCCT for about 20mins now and the hottest core is 61°. I heard the 1.4v thing also but figured I would err on the side of caution and set a max voltage at 1.350 for everyday use. The vcore shows 1.321v under max load with 90% ram usage. Is that difference droop or is cpu-z just misreading the voltage? I would honestly be a bit surprised if this was an issue with an unstable CPU overclock. The GPU was set to the default clocks. Is there some kind of system or GPU dump file I can check to see what errors occurred?

sorry, no idea how it works, or how accurate the readings are
 
I am now at a point where I consider my new OC stable at 4.4Ghz. It passes 30 mins of prime95, Aida64, occt, and ITB on high.

Yep not even close to stable. Go for at least 8 hours... in each. Your system will only tell you to press f1 to go to bios or f2 to load defaults when a CPU/Memory OC has failed.
 
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