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How to overclock a 7850 past 1050MHz?

Sorry i meant thats the max it allows. I want to raise it higher but I dont think its possible without a bios flash.

Also it looks like 25Mhz in memory is close to 1fps gain.

Ahh I see. Personally I wouldn't want to raise the voltages above that as you'll need a high fan profile to reduce high temps (if you're card is air cooled). Additionally higher fan profiles = more noise.

But Sapphire Trixx allows the Voltages to go to 1.3 (Well on my HIS IceQ card it does)
 
Well the msi cooler is pretty good and I game with headphones anyway. Probably wouldn't bother pushing it more than 1200mhz/1400mhz for 24/7 but would be nice to push for benchies. Going to just try fine tune the voltage now. Thanks for everyone's results.
 
First of all Tesselation should be normal; Anisotropy should be 4X and you should run 4X Anti Aliasing.

It's the Core speed that needs to be notched up. Once you crash in heaven; up the Voltage but don't exceed the recommended threshold or whatever you consider to be a safe temperature. Also it's worth noting that people have their GPU's liquid cooled so if they get higher benchmarks, it's because they can push their cards higher than those on air coolers.

Additionally, there will come a point where the over voltage protection will kick in, so whilst you can push higher clock speeds the Heaven score will start to decrease.

The process of overclocking is an iterative process, where you gradually make changes and test to see how stable it is. You should only be making one change at a time so that you can assess if the change improves things, if it doesn't change it back and change something else. Also keep a note of your last stable settings so that you can revert to them if you reach a point where several minor increases in voltage etc makes no difference to stability.

TL;DR This is an example of how I approached overclocking.
MAJNUSBENCHRESULTS.png

Oh i see, well here it is again but at 1150/1500 @ 1.9v
scaled.php


This is the highest clock core i can achieve. Tried 1200 with default memory core with 1.225v, no dice.
 
Well the msi cooler is pretty good and I game with headphones anyway. Probably wouldn't bother pushing it more than 1200mhz/1400mhz for 24/7 but would be nice to push for benchies. Going to just try fine tune the voltage now. Thanks for everyone's results.

Just get the core to a nice stable voltage, then just keep ramping up the memory until you start loosing FPS or getting Grey screens.
 
The 12.6 drivers have allowed me to use Trixx to overvolt finally with my XFX 7850 double d. So far at 1250/1400 1.24V...card seems about average based on other peoples clocks. Got to say it's quick as hell though, finally BF3 is smooth.
 
I've just had my first go at O/C my HIS 7850.

Only had about an hour to test but so far using Asus Tweak:

Core - 1150
Voltage - 1.150
Mem - 5000
Fan Speed - Auto

Running Heaven in 1080p I get 50fps give 1 or so but the worrying thing is Asus Tweak showing the card at about 80c under full load. This seems to be about 10-15c higher than most people, especially considering I haven't really pushed the voltage hugely.

Any ideas?
 
I've just had my first go at O/C my HIS 7850.

Only had about an hour to test but so far using Asus Tweak:

Core - 1150
Voltage - 1.150
Mem - 5000
Fan Speed - Auto

Running Heaven in 1080p I get 50fps give 1 or so but the worrying thing is Asus Tweak showing the card at about 80c under full load. This seems to be about 10-15c higher than most people, especially considering I haven't really pushed the voltage hugely.

Any ideas?


The cooler isnt very good , msi cooler lot better, or alter your fan profile so it sounds like a hoover :-).
 
The cooler isnt very good , msi cooler lot better, or alter your fan profile so it sounds like a hoover :-).

Well I have the HIS IceQ and mine rarely goes over 60 degrees, 65 tops even during the heat wave. (edit. I'm in Scotland so anything over 10 degrees for more than 24 hours constitutes a heat wave :) )
 
Balbowa your cards looking good! I have the same card but I couldn't get the voltage to unlock on gpu tweak so haven't gone very far with it yet. Going to try with the new drivers when I get home on monday to see if anythings changed because I feel like these frozr iv's need some more good benches ha
 
Balbowa your cards looking good! I have the same card but I couldn't get the voltage to unlock on gpu tweak so haven't gone very far with it yet. Going to try with the new drivers when I get home on monday to see if anythings changed because I feel like these frozr iv's need some more good benches ha

Ive got trixx installed and afterburner, i alter the voltage in afterburner, goes up to 1.3

I could alter the clocks past 1050 on afterburner, but i did a clean install last night, and now i cant , have to alter them in trixx, very odd it is

I no matter how high i alter the voltage, it doesnt go past 1.210 on gpuz.
 
Hmm, not really sure what causes the problem. My afterburner will go quite high on the voltage but not on the clock. I'll give trixx a go too when I change the drivers
 
Mine won't even let me change the voltage in after burner and the only software that let's me change my clocks over 1050 is trixx. I can't use the 12.6 drivers either because they mess up video decoding so I can't watch films :S

Any ideas how I could get more volts without changing the bios?
 
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I have been quiet for a while on this thread as my card easily hit 1200/6000 at 1.176 but the last week has been nothing short of torture.

I had atikmpag BSOD's which seemed to go away with trying different drivers. Now I am finding the majority of the times I cant get past BIOS without it blue screening.

Also I have 2 quick short beeps on my gigabyte when switching on and the program 'whocrashed' reporting driver errors.

I am starting to fear my card is dying and maybe needing RMA'd
 
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