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~~The GTX 670 Overclocking Master-Guide~~ - Page 184

post #1831 of 3357
Quote:
Originally Posted by pc-illiterate View Post

Setting the voltage at max does do something. It keeps the voltage at 1.175v during 3d clocks so you dont get crashes because the chip wants more voltage quick fast and in a hurry. If it cant respond fast enough it will crash. Keeping them maxed helps prevent this. I know for a fact i crash at max overclocks without the voltage slider maxed.

Would modifying the BIOS to 1.212V be the same as maxing out the voltage slider though?
post #1832 of 3357
Quote:
Originally Posted by pc-illiterate View Post

Setting the voltage at max does do something. It keeps the voltage at 1.175v during 3d clocks so you dont get crashes because the chip wants more voltage quick fast and in a hurry. If it cant respond fast enough it will crash. Keeping them maxed helps prevent this. I know for a fact i crash at max overclocks without the voltage slider maxed.

Have they fixed that in Afterburner? It used to reset every time you went back to 2D clocks, so I stopped messing with it.
post #1833 of 3357
Quote:
Originally Posted by Forceman View Post

Have they fixed that in Afterburner? It used to reset every time you went back to 2D clocks, so I stopped messing with it.
Only does that for me if I crash. If I quit then settings stay the same. Same effect in PrecisionX.

Ofcourse the graphs show that it downclocks when in 2d mode, but thats because most defaults set to adaptive power mode rather than constant.
post #1834 of 3357
@ SeanPoe

THANKS for the great guide! I can't wait to get down to OCing my 670s. It will be my first time OCing video cards, so I really appreciate having such a thorough guide.

Before I begin, I do have a question: When I run benchmarks like Heaven or 3DMark11, my cards (EVGA GTX 670 FTW 4GB cards, so they do already have something of an overclock on them) already heat up to about 80C. So, I'm a little worried about temperatures. I seem to recall in various forums that some folks say cards shouldn't be allowed much past 80C. Should I be too worried if OCing further results in temps past 80C? 85C?

Thanks,
JML
post #1835 of 3357
I have beer, buffalo chicken pizza and wings. Giving my 670 OC another shot. Be back later with the results.
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post #1836 of 3357
Quote:
Originally Posted by JML10166 View Post

@ SeanPoe
Should I be too worried if OCing further results in temps past 80C? 85C?

Thanks,
JML

not at all.. but above 87 degrees you should be worry smile.gif
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post #1837 of 3357
For some reason my voltage slider is wont go to 1.175 anymore. I can only choose 1.15. Any ideas?


Edit: Turns out even though I can only choose 1.15 as long as I'm within TDP it will still push the 1.175v.
Edited by b.walker36 - 3/2/13 at 11:03am
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post #1838 of 3357
Hi!
First time OCing, thank you for the guide!
My setting:

EVGA 670 FTW 2GB
1173 Boost Clock
1202 Max Boost
1865 Memory
126% Power Target with 1.150 Voltage slider (VDCC reaches 1.175 though)

GPU-Z screens: Warning: Spoiler! (Click to show)


I'm pretty satisfied with temperature and memory OC, but I kinda expected (maybe wrongly) a higher clock boost.
Every time I tried higher clock boost , power reached a 330% peak and Heaven crashed.
My top for clock offset is +90 (+88 when combined with +625 mem).

These are my results, what do you think about them? Are they good enough? Shoud I have expected better ones?

Unigine benchmarks: Warning: Spoiler! (Click to show)

post #1839 of 3357
Quote:
Originally Posted by kevindd992002 View Post

Would modifying the BIOS to 1.212V be the same as maxing out the voltage slider though?

Anyone?
post #1840 of 3357
Not sure what you mean. On most cards maxing the voltage slider still won't let the card go past 1.175V, so only the modded BIOS will give you 1.21V. If you mod the BIOS I don't know what the slider does (but I'm planning to flash mine tonight, so I'll find out).
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