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~~The GTX 670 Overclocking Master-Guide~~ - Page 40

post #391 of 3357
Quote:
Originally Posted by Admiral Mudkipz View Post

Yea, I've started doing that too. What do you downclock when you fail the loop...the memory or the GPU clock? I guess it's situational right?
The latest failure was a DX-related crash, so since it was a crash to the desktop, it made sense to downclock the GPU clock.

i had my core clock at

980 (base) + 100 offset | mem 3002 + 475 offset

that failed within 70 minutes. at the time i didn't think it was the core clock cos i had seen no issues with it in games or benching so i decided to try the next best memory clock i had tested.

so i tested

980 + 100 offset | mem 3002 + 400 offset

and i put it through the riggers of the heaven bench and i just let it loop. i started it at 11am and called it stable at 7pm and it ran fine with no issues: i even left the house to go do some things i needed to do and it was still running when i got back. so it ran for a full 8 hours with no crashes and so i am satisfied and confident that those settings are stable.

while i don't think i have reached their max stable values i think that this is a good balance between the core clock and the memory clock.
post #392 of 3357
Quote:
Originally Posted by thegh0sts View Post

i had my core clock at
980 (base) + 100 offset | mem 3002 + 475 offset
that failed within 70 minutes. at the time i didn't think it was the core clock cos i had seen no issues with it in games or benching so i decided to try the next best memory clock i had tested.
so i tested
980 + 100 offset | mem 3002 + 400 offset
and i put it through the riggers of the heaven bench and i just let it loop. i started it at 11am and called it stable at 7pm and it ran fine with no issues: i even left the house to go do some things i needed to do and it was still running when i got back. so it ran for a full 8 hours with no crashes and so i am satisfied and confident that those settings are stable.
while i don't think i have reached their max stable values i think that this is a good balance between the core clock and the memory clock.

What kind of failure was it? Driver crash, artifacts, etc.?

The problem is I don't know what's causing the crashes...either too high of a memory clock, too high of a GPU clock, or even both.

I have core clock set to 980+62 right now. 65 caused crashes to desktop when I was trying to find my max GPU clock.

I think memory clock is sitting around the 3002 + 400 offset range as well. Highest it went to without crashes was the 599 range. I've had to drastically reduce it since.

It's a pretty crappy card...
post #393 of 3357
Quote:
Originally Posted by Admiral Mudkipz View Post

What kind of failure was it? Driver crash, artifacts, etc.?
The problem is I don't know what's causing the crashes...either too high of a memory clock, too high of a GPU clock, or even both.
I have core clock set to 980+62 right now. 65 caused crashes to desktop when I was trying to find my max GPU clock.
I think memory clock is sitting around the 3002 + 400 offset range as well. Highest it went to without crashes was the 599 range. I've had to drastically reduce it since.
It's a pretty crappy card...

driver crash though the heaven bench gave an error that was different to the error from previous tests. i just reboot and change the settings down and now i think it's stable.
post #394 of 3357
Quote:
Originally Posted by thegh0sts View Post

driver crash though the heaven bench gave an error that was different to the error from previous tests. i just reboot and change the settings down and now i think it's stable.

OK, well my brother updated me with the status of the latest Heaven run (since I'm at work) and it's been running for about an hour. Here's to hoping it's stable.

If not, I'll probably try a manual clean installation of the drivers again...you said you recommend the beta drivers...or was that someone else?
post #395 of 3357
Quote:
Originally Posted by Admiral Mudkipz View Post

OK, well my brother updated me with the status of the latest Heaven run (since I'm at work) and it's been running for about an hour. Here's to hoping it's stable.
If not, I'll probably try a manual clean installation of the drivers again...you said you recommend the beta drivers...or was that someone else?

that was someone else though i am using the 304.79 betas.
post #396 of 3357
Quote:
Originally Posted by thegh0sts View Post

that was someone else though i am using the 304.79 betas.

I believe I tried those beta's only to find out that I get 5 points less on Heaven with the same settings. I only tried it for a couple minutes though so perhaps I'll have better success with longer use and playing around.
post #397 of 3357
Quote:
Originally Posted by Admiral Mudkipz View Post

I believe I tried those beta's only to find out that I get 5 points less on Heaven with the same settings. I only tried it for a couple minutes though so perhaps I'll have better success with longer use and playing around.

i stopped caring about scores cos i just want my overclock to be stable, plus the numbers are very arbitrary and i find it hard to compare scores with others.
post #398 of 3357
Quote:
Originally Posted by thegh0sts View Post

i stopped caring about scores cos i just want my overclock to be stable, plus the numbers are very arbitrary and i find it hard to compare scores with others.

True...this was way back then when I just started overclocking with the 670. It could also be the restricted voltage control on Afterburner. I could use Precision, but it doesn't seem to work really well with my 670...the overclocks I mean.
post #399 of 3357
Quote:
Originally Posted by Admiral Mudkipz View Post

True...this was way back then when I just started overclocking with the 670. It could also be the restricted voltage control on Afterburner. I could use Precision, but it doesn't seem to work really well with my 670...the overclocks I mean.

did you check the option in the settings to enable voltage control? i went with precision x cos it was recommended in the 670 master OC guide....plus precision x has a nice gtx 670 skin.
post #400 of 3357
Quote:
Originally Posted by thegh0sts View Post

did you check the option in the settings to enable voltage control? i went with precision x cos it was recommended in the 670 master OC guide....plus precision x has a nice gtx 670 skin.

I did. I also originally went with Precision X, only to find out that no matter how much I overclocked, my Heaven score was always the same and that during the benchmark, the clocks stayed at base/stock clocks and then jumped up AFTER I had finished the benchmark and quit out of the program.

After that, I just stuck to Afterburner, which I have used for a very long time. I had a lot of success with the program with my 470 overclocking so I like it a lot. However, I do miss the high over volting option Precision X allows. The lower voltage could be what's limiting my overclock.
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