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~~The GTX 670 Overclocking Master-Guide~~ - Page 292

post #2911 of 3357
Quote:
Originally Posted by anubis1127 View Post

Galaxy GC 2gb cards. The Asus dcII one.

Its not flawless, but they don't throttle over 71c.

Basically the main thing it lacks is power % control. It doesn't seem to be that big of an issue since the board TDP for the 770 dcII is higher than a 670 stock bios with the power limit maxed.
I'd like to run boost 2.0 on my cards, but last time I tried flashing an identical bios from another same card just with a different bios version string, it bricked the card (successful flash was verified)... I can edit and flash the stock bios all day long without any issues. Any other suggestions? I have 2x MSI 670 gtx pe/oc.
post #2912 of 3357
Is this a good overclock?

asus gtx 670 direct CU2
1110 Boost clock
1176 Max boost ( gpu clock offset +130)
1735 memory (mem clock offset +465)
114.5% power target with 1.175 voltage slider
benchmark.JPG 74k .JPG file
hardware monitor.JPG 131k .JPG file


if i increase my gpu clock offset to +131 i will get max boost of 1193, heaven finishes witout crashing but games like farcry 3 and tomb raider crash.sadsmiley.gif
post #2913 of 3357
Quote:
Originally Posted by NicolasRush View Post


I'd like to run boost 2.0 on my cards, but last time I tried flashing an identical bios from another same card just with a different bios version string, it bricked the card (successful flash was verified)... I can edit and flash the stock bios all day long without any issues. Any other suggestions? I have 2x MSI 670 gtx pe/oc.

 

That card has a custom PCB AFAIK, so you're probably limited to the MSI PE bios.  One of the folders I know on OCN has one of those 670 PE cards, and he runs his at 1360 with +100mV on the stock bios in AB.  He has a MCW82 watercooling the core though.  His card is also 91% ASIC, that helps.

Quote:
Originally Posted by ramnesia View Post

Is this a good overclock?

asus gtx 670 direct CU2
1110 Boost clock
1176 Max boost ( gpu clock offset +130)
1735 memory (mem clock offset +465)
114.5% power target with 1.175 voltage slider
benchmark.JPG 74k .JPG file
hardware monitor.JPG 131k .JPG file


if i increase my gpu clock offset to +131 i will get max boost of 1193, heaven finishes witout crashing but games like farcry 3 and tomb raider crash.sadsmiley.gif

Not the best I've seen, that is actually the stock boost, 1176, of my slower Galaxy 670 GC card, my faster GC card is stock boost at 1215Mhz.

 

What is your stock boost, and ASIC quality %, just out of curiosity?

post #2914 of 3357
stock boost clock is 980

and out of curiosity what is the ASIC quality %?rolleyes.gif
post #2915 of 3357
Quote:
Originally Posted by ramnesia View Post

stock boost clock is 980

and out of curiosity what is the ASIC quality %?rolleyes.gif

 

Is that the stock boost you actually see while running benchmarks / gaming?  The "Kepler boost" so to speak.

 

You can check it in GPU-Z like this:

 

 

ASIC = Application Specific Integrated Circuits.  Basically every chip in your PC.  The GPU-Z ASIC quality can sometimes be an indicator of OC potential / how much voltage is required.  At least I have found that on Kepler, other GPUs, GCN ones, and fermi cards it doesn't seem to indicate much.

post #2916 of 3357
ok first ASIC is 68.8%
stock boost or the kepler boost is 1058.
post #2917 of 3357
Quote:
Originally Posted by ramnesia View Post

ok first ASIC is 68.8%
stock boost or the kepler boost is 1058.

Ah, well then your results aren't terrible then, 100mhz over your stock kepler boost is pretty descent.  Just a shame the card starts out that low.  Your memory OC probably helps out quite a bit when it comes to real world gaming.  

post #2918 of 3357
all right then thank you.
do u think if i want to increase the overclock i should mod the bios? or thats the max i can get.
post #2919 of 3357
Quote:
Originally Posted by ramnesia View Post

all right then thank you.
do u think if i want to increase the overclock i should mod the bios? or thats the max i can get.

You could probably squeeze a bit more core, and memory clock out of modding the bios to go up to 1.21V.  Probably get you stable around 1200-1215 Mhz on the core I would guess.

post #2920 of 3357
noob question here, does OCing my 670 void warranty?

(I couldn't find this in the first page)
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Problem child
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i7-4770k 4.6GHz@1.300v Z87X-UD3H XFX R9 290/290X + ACX3 Crucial Ballistix Tactical LP 16GB 
Hard DriveCoolingCoolingMonitor
Samsung 840 PRO Thermalright Macho HR-02 Rev. A 4x bequiet! ShadowWings 1LS Benq XL2411T 
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Seasonic G550 Bitfenix Shinobi Razer Deathadder 2013 Asus Xonar Essence STX 
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