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~~The GTX 670 Overclocking Master-Guide~~ - Page 229

post #2281 of 3357
Hello all,

I tried to OC my GTX670 it's an ASUS NON Top DCU2.

My problem is : I have no fps difference ingame between before and after the OC (I tried on farcry 3).

Did I forget something ?

My config :

I7 920@3.8Ghz
Asus P6T
6Go pc16000

Thank you guys ...and girls wink.gif
post #2282 of 3357
Hmmmm, My 670 sometimes doesn't boost, Just chills like a bawse at 966mhz. and then boosts SOMETIMES to 1123mhz
MSI Afterburner + 100mv, 122% Power limit, +120 Core, +350 Mem

I struggle to understand how it decided what to boost to

EDIT:
It boosts, but it doesn't overclock boost.
Re installed drivers. Changed between precision and afterburner more than twice
Edited by jakethesnake438 - 4/12/13 at 4:39pm
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post #2283 of 3357
are you guys running vsync? whats the gpu usage?
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post #2284 of 3357
Quote:
Originally Posted by kevindd992002 View Post

Hmmm, that is interesting. Increasing the mem offset more will make the artifacts go away but for the expense of higher latency then (which is bad)?

There's the theory, but seeing as benchmarks went up with higher scores, the latency may not be that bad compared to the mhz change.
post #2285 of 3357
Quote:
Originally Posted by jakethesnake438 View Post

Hmmmm, My 670 sometimes doesn't boost, Just chills like a bawse at 966mhz. and then boosts SOMETIMES to 1123mhz
MSI Afterburner + 100mv, 122% Power limit, +120 Core, +350 Mem

I struggle to understand how it decided what to boost to

EDIT:
It boosts, but it doesn't overclock boost.
Re installed drivers. Changed between precision and afterburner more than twice

I had this problem a lot when Afterburner was installed. I uninstalled it and Precision X has been much more consistent. In regards to setting the boost, it seems to be something to do with measured power and temp over time along with GPU usage %....from my experience that is.
post #2286 of 3357
I did'nt precies that the GPU clock reach the OC clock (arround 1200Mhz) so I can say the OC worked but there's no difference in game sadsmiley.gif

My OC config :

GPU clock : +120Mhz
Mem clock : + 600Mhz
Power : +122%
Voltage : to max limit.

Thank you.
post #2287 of 3357
Has anyone tried the Cool Laboratory Liquid Pro on the the 670/680, are they suitable for GPU use?
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post #2288 of 3357
Got a nice steady OC going, 2x 670 FTW's both running at a steady 1254 Mhz at 29-30c temps. This equates to a GPU Clock Offest of +113 Mhz and a Mem Clock Offset of +275 Mhz.

Only real question I have is when using the 30 minute method (Within 5% is plenty for me, especially as we head into summer and my ambients are going to go up) what do I do with the Power Target once I find my clock? Is it irrelevant since my temps are so low? I know it won't over-volt (heck, in Heaven my top card only hits like 102% usage), but the top card hits like 134% when using the "Test" function in Precision X.
post #2289 of 3357
Quote:
Originally Posted by EarlZ View Post

Has anyone tried the Cool Laboratory Liquid Pro on the the 670/680, are they suitable for GPU use?
CL ultra and pro are conductive/capacitive so you are strongly recommended not to use them on GPUs. If you get any of the TIM where it is not supposed to go you could ruin your card and will not have a warrenty.

That said, there are people who use liquid metal TIMs on GPUs, you just have to be very careful with it. Also note that they will destroy aluminum which some stock coolers contain. If you have to RMA the card you may have to clean it all up and put nonconductive paste on there.

In a nutshell, it will work better than some other pastes like MX-4 but only by a few c at most, and the risk and trouble may or may not be worth it to you.
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post #2290 of 3357
Hey I have some questions about this guide.

I tried some fairly small overclocks in terms of my clockspeed (unfortunately I crash at more than ~89 offset but I guess I have a weak card).
The thing is, my Heaven Benchmarks scores vary A LOT.

With a 54 offset I got a 1177 score, and with 74 I got 1190. However, later on I tried tried the same / similar settings again yet got MUCH lower scores (around 1140).

My question is:

Is this normal for Heaven Benchmark, and should I keep pushing the coreclock as long as I don't see artifacts and crashes?
Or should I worry about those strange score fluctuations?

Details:

670 GTX (factory OC'd by about 50 mhz)
I7 3770K @ 3,5 ghz stock.
My fan speed is at 80% and my temps don't go above 69 degrees celcius
Power limit at max allowed (122), voltage at max allowed (1150).
The program I used was EVGA Precision X (version 4.0)

Any help would be greatly appreciated. smile.gif
Edited by Tagek - 4/13/13 at 10:16am
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