Have you restarted your pc after the driver crash?
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AMD - How To Overclock The Official Way Using Afterburner + Step By Step Overclocking Guide + Comple
- Thread starter LtMatt
- Start date
Have you restarted your pc after the driver crash?
Yep. I think my Steam friends might be getting annoyed and me signing in every 2 mins
Just ran 1025/1350 and got 47.4fps and score of 1194 so an extra 2 fps compared to my pre-guide run on stock 925/1250. Extra 6c in temps too.
Maybe I had something else running that was helping performance somehow before.
Possibly. Increase your fan profile if needed. Try to keep temps below 75c once you get up past 1050 core.
Probably a slightly unstable core. Try to increase the voltage a bit. If it makes no difference then you need to check the memory.
Yes. You've either reached the maximum your card can do, or you have reached the maximum your card can do before rendering errors occur with your cooling solution. If you can improve your cooling or can keep the gpu cooler you might be able to go further.
Overclocking the memory too much will result in worse performance or a coloured stripy screen when your gpu crashes. 3DMARK is a good benchmark to use to overclock memory as when your scores get considerably worse you know you've reached your limit.
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Yes, certainly won't hurt.
What you need to do is start at stock voltage and a stable core clock and work your way up from there. Leave memory at stock for the moment. Use unigine valley to test core stability. Complete one benchmarking run of said benchmark. (run it then press f9) If you complete the test bump the core 10mhz and run the test again. If you crash, black screen, or get an error restart your pc then bump the voltage one notch and run the test again. Make small steps, take your time. Its time consuming but these cards can be sensitive and it takes time to get the most from it.
You also need to run out temps limiting your overclock so run the fan at close to full speed. 75c or higher can cause problems when overclocking.
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Calm yourself young padawan. Rome was not built in a day and neither was a Tahiti card clocking to 1175 in one fell swoop. Think of me as a young, more virile version of Mr Miyagi. Sure I'll have you washing my cars and cleaning my soiled y fronts but at the end of the day you'll be getting the most from your card.
Ok so you can do 1135 on stock volts huh? Well my card does 1125 maximum on stock volts and i can go up to 1325 and beyond if i get my voltages right and keep my temps low.
So, run a benchmark run of Unigine at 1125 stock voltage. If you complete then knock the speed up 10mhz and rinse and repeat as i posted above.
Do not make large jumps, you need to be patient and take your time. You're on air cooling so getting optimum voltage is essential if you want to clock well. You can't just ramp it up and assume it will be stable.
Matt, can you help me along the way please? This is giving me a headache doing it on my own with no guidance.
If you can help me get my card running quicker than three 7970's in CF then you can have the G1 for free
Yeah what's the problem?
So you only have one card? I thought you had three for a second.
Well once you've followed the guide in the op post you Asic score and what overclock you can reach on stock volts.
54? Blimey that's low. Well that can be a god send if you have a naturally good clocker as temps at very high voltage will be better than typically because of excess leakage.
If you're Asic is below 75% your default voltage will be 1.175. Copy my settings in afterburner. This will be a good place to start overclocking from.
Use Unigine Heaven 4.0 to benchmark. http://www.techpowerup.com/downloads/2205/Unigine_Heaven_DX11_Benchmark_4.0.html
Load it up and copy these settings.
Start it up and when it loads press F9. Complete the benchmarking run. Take a note of you scores, clocks and voltages. I keep track of them in note pad. You might need to alt tab out to do this after the benchmarking run has complete.
If you pass the benchmark without crashing, black screen, driver error, any error then bump your core clock 25mhz and run the test again. Once you get an error or crash etc restart your pc and then bump the voltage a notch and try again. Rinse and repeat till you reach your maximum. Try to keep temps as low as possible as once the 7970 gets too hot it becomes unstable. Once you've done that then we can work on the memory. Benchamrk stable might not mean game stable though so once you're finished you then need to test them in the real world. Typically i find i need another bump of voltage to be game stable.
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No found that rather funny just went away for more testing master
One notch at a time is usually best. Just keep adding more till you can go further. Have you increased the power draw slider to +20%? Have you left the memory at stock while you try and master the core? That's not usually needed but it might be worth trying if you're having issues getting past 1135.
What exactly happens? Are you seeing artifacts? How are temps when it crashes?
Maybe, it would be worth following the guide in the OP from the start. If you unlock overdrive in ccc then that can conflict with afterburner. If you read the guide it says not to unlock over drive at all. Not promising anything, but you should definitely rule that out with a driver sweep and reinstall.
When you get that sorted, just keep adding voltage until you get past it. What's your asic?
When you said that's low my heart kind of sank.
Is that a bad thing then, even though you say it 'can' be a godsend?
I take it a higher asic is preferred?
Not really. It all comes down to the gpu lottery. Asic plays no part in if your chip will be a good clocker. It just defines how much voltage your card needs to to be stable at stock speeds. However 54% is still quite low and possible the lowest ive ever seen.
Asic quality works like this
ASIC quality < 75% - 1.1750 V
ASIC quality < 80% - 1.1125 V
ASIC quality < 85% - 1.0500 V
ASIC quality < 90% - 1.0250 V
ASIC quality ≤ 100% - 1.0250 V
We share similar Asic's. Mine is 78.9%. From looking around the best clockers seem to be in the 70-80% asic range. But i have no data to back this up, this is just what ive seen from a lot of searching ive done. At the end of the day its mainly down to the chip itself.
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You mean the new beta version? That was buggy. You still need to do it on the last official version.
Leave mem alone for now. Just keep note of the core clocks. You can keep track then of what's stable and what's not and how much voltage you need for what clock etc. Its a methodical way of doing things. Once you become used to what you're doing you won't need to do that.
How high have you gone with the voltage?
Query, how and what does ASIC effect?
Mine is 71.5
What effects it's percentage and how does it interact with your overclock?
I posted a brief explanation above.
For you up to 1.3v is safe. Strap yourself in lad there's plenty of room left in the old girl yet. Just try and keep temps below 70-75c if you can.
You've only done one voltage bump? Don't be afraid to whack her up. Just do it one notch at a time and take your time. You do not want to be using more voltage than is necessary. Just remember if you crash or get an error restart your pc before continuing. Otherwise you might get worse performance on your next bench and won't get true results.
Remember stock ghz edition cards use a voltage of 1.25v.
Sounds like you have a good clocker. The average for 7970's is 1100-1200 core. That's the average. Anything over that is good. 1250+ is a great clock and 1300+ is gold territory.
Your card needs slightly more voltage to be stable than mine, yes.
The thing is high asic cards get hot, real hot once you add a lot of voltage because there is such little leakage. That can cause problems once you really start overclocking and temps need to be low. But at or around default clocks/voltage high asic cards run cooler because of the low voltage applied.
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