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First Overclock of 5770

Michael_10

Michael_10

Michael_10

Associate
Joined
15 Jan 2010
Posts
978
Location
Scotland
Hi everyone! Got a HD 5770 yesterday and thought I would give it a go overclocking it.
So far I have managed to get a stable 950/1280 and played Crysis, Crysis Warhead and run Furmark and Heaven Benchmark without any problems. What I would like to know is if this is significant enough for me to see a difference or should I try and push it higher? The cards temperature seems to max out at 80 when fully stressed, but that was only on Furmark, other applications seem to keep it roundabout 72, are these ok temperatures?

My Heaven benchmark score has gone from 723 to 293, that's at:

1280x1024
DX11
Shaders on high
Tessellation on normal
Anisotropy on 4
AA off

Are these significant gains?

Thanks :D
 
Michael_10 said:
Hi everyone! Got a HD 5770 yesterday and thought I would give it a go overclocking it.
So far I have managed to get a stable 950/1280 and played Crysis, Crysis Warhead and run Furmark and Heaven Benchmark without any problems. What I would like to know is if this is significant enough for me to see a difference or should I try and push it higher? The cards temperature seems to max out at 80 when fully stressed, but that was only on Furmark, other applications seem to keep it roundabout 72, are these ok temperatures?

My Heaven benchmark score has gone from 723 to 293, that's at:

1280x1024
DX11
Shaders on high
Tessellation on normal
Anisotropy on 4
AA off

Are these significant gains?

Thanks :D
Click to expand...

Could you tell us more about your system and what 5770 you got as there each different and some makes OC better than other i personally have my vapour x at 960/1375 stable
 
Michael_10 said:
I'm also getting idle temperature of about 46 degrees when overclocked, is this normal?
Click to expand...

If you are using the latest cat's 10.6 then this is normal for some reason when overclocking the card it raises the 2d clocks to 400/(whatever your mem is set at) mine used to idle at 32 now idles at 38 if you want it to idle cooler then revert to the 10'5's. Or use something like Msi afterburner to create a custom fan profile.

the best way to overclock is by first overclocking the gpu 10mhz at a time then run a couple of benchmaks and also furmark keep the scores written down when you see errors/graphics corruption or a lower score then u know u hit the limit then drop it back 10mhz from the fail point. Same go's for the memory but be more vigilant on your data has the error correction can kick in on the memory and give you a dupe score so double check this by playing some games and checking for anomolies/performance dips. It took me a few days and many different benchies and games to make sure it was totally stable.

Altho i suppose someone will come along and say just run furmark or a minute and it will be ok. personally i would never do this and never run furmark for more than a couple of minutes at a time as it really utilises stuff on the card that no game can do. People have been known to fry there VRM's using furmark so use it with a dabble of caution.

If you need any more help then get back to me and i'll see if i can help you further
 
^ it's overclocked by 300MHz, and I'm assuming he stopped there because he couldn't go further

don't forget he unlocked two cores as well
 
HW91 said:
^ it's overclocked by 300MHz, and I'm assuming he stopped there because he couldn't go further

don't forget he unlocked two cores as well
Click to expand...
I know he unlocked two extra cores. Phenom B50 should be able to reach 3.8GHz, unless his unlocked cores are weak cores, or motherboard won't allow it (or not adding extra voltages).
 
Marine-RX179 said:
I know he unlocked two extra cores. Phenom B50 should be able to reach 3.8GHz, unless his unlocked cores are weak cores, or motherboard won't allow it (or not adding extra voltages).
Click to expand...

I had one that struggled to reach 3.5ghz unlocked or not, there is no "should" in overclocking, only maybe.
 
Thanks for all the advice guys, I really appreciate it!

About my CPU, I got 3.2ghz and unlocked cores at stock voltage, and a small increase to reach 3.4 , I've been experimenting with higher frequencies but it looks like I will need to greatly increase the voltage, which I don't really want to do at the time.

I have noticed my GPU core idle at 400 and memory idle at 1278, and I thought this was something to do with overclocking but if it is becuase of 10.6 then I might install 10.5, would the downgrade to 10.5 have any impact in games?

Thanks again! :)
 
Michael_10 said:
Thanks for all the advice guys, I really appreciate it!

About my CPU, I got 3.2ghz and unlocked cores at stock voltage, and a small increase to reach 3.4 , I've been experimenting with higher frequencies but it looks like I will need to greatly increase the voltage, which I don't really want to do at the time.

I have noticed my GPU core idle at 400 and memory idle at 1278, and I thought this was something to do with overclocking but if it is becuase of 10.6 then I might install 10.5, would the downgrade to 10.5 have any impact in games?

Thanks again! :)
Click to expand...

Personally 10.4's have been the best for me quite a few people have reported problems with the 10.5's and 10.6's it's just trial and error really even some of the late 9's were very good. I would give 10.4's a go if your worried about high idle temps and the permanent memory overclock thats applied


keep us informed whats going on won't ya

and don't worry 3.4Ghz is more than enough for a 5770 with a majority of games. Unless your talking cpu heavy games like far cry 2,GTA,ARMA 2 etc etc.
 
bigjimmyauk said:
Personally 10.4's have been the best for me quite a few people have reported problems with the 10.5's and 10.6's it's just trial and error really even some of the late 9's were very good. I would give 10.4's a go if your worried about high idle temps and the permanent memory overclock thats applied


keep us informed whats going on won't ya

and don't worry 3.4Ghz is more than enough for a 5770 with a majority of games. Unless your talking cpu heavy games like far cry 2,GTA,ARMA 2 etc etc.
Click to expand...

Thanks for the reply! Ok i'll download the 10.4 drivers and see what that does. Would it be possible to just install the 10.4 CCC and have the 10.6 display driver so I've got the most up to date display driver but a lowe CCC that will keep my idle clocks low?
 
between 10.4's and 10.6's i only get an extra 0.63 Frames per second avg difference. So it could be your imagination or something to do with installing older drivers over new ones.
 
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