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5770 stays in 2D/idle clocks

xBLiNG

xBLiNG

xBLiNG

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So as the title suggests, my Sapphire 5770 will not go to it's proper clocks of 850/1200, it instead stays at the idles 400/900 even if I run the most intensive things I have (Heaven/Crysis ect).

The other day I uninstalled the drivers and put the latest ones on, seemed to work for a little bit, but has gone back to the same now.

Anyone got any suggestions as to what I should do?

Thanks in advance
 
Had one that did exactly that, turned out it was the bios that the previous owner had put on.
Flashed to a different one and worked fine thereafter.

Could try a software solution to set the clocks if you don't fancy messing about flashing bios's.
 
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By any chance, is it the standard Sapphire one? Same thing happened to me, and a few googling found out it is indeed a BIOS problem, so it's Sapphire's fault :p . Flashed it and now it works fine.
 
No, it's Sapphires version of the egg cooler.

100_0676.jpg
 
I have the EXACT same card mate same pcb colour same exact cooler this is the bios you need it will fix that issue
Capture.jpg
 
Ok thanks you guys, so do either of you have a link to the BIOS that would fix this issue for me? This is what I'm on currently.

bios.jpg
 
Not sure if a bios fixes it, but this issue showed up in 10.5 and later drivers when you enable overdrive - the card idles at 400 core and full mem speed. On yours it also seems to affect your 3D clock - did you verify it is actually is stuck at 400 via benchmarks, or is it just being reported wrong?

If you disable overdrive, the idle clocks will drop to 157 / 300 and may clock back up normally in 3D. Check it out before messing with the bios.
 
spirits247 said:
Not sure if a bios fixes it, but this issue showed up in 10.5 and later drivers when you enable overdrive - the card idles at 400 core and full mem speed. On yours it also seems to affect your 3D clock - did you verify it is actually is stuck at 400 via benchmarks, or is it just being reported wrong?

If you disable overdrive, the idle clocks will drop to 157 / 300 and may clock back up normally in 3D. Check it out before messing with the bios.
Click to expand...

No that's not what he is on about, when playing games etc the clocks stay low(low fps too) that doesn't happen on the bug you are talking about, had the same issue myself on the exact same card.

http://www.techpowerup.com/vgabios/59030/Sapphire.HD5770.1024.090916.html
This is the exact bios I have on mine and it's the exact same as your card.
ATOMBIOSBK-ATI VER012.012.000.003.034524




And here's the link to all the sapphire 5770 bios's, none of them should brick your card though my one had the asus 5770 bios on it before.
Just stick to the 850/1200 speed ones but this particular model we have clocks amazingly well.
http://www.techpowerup.com/vgabios/...phire&model=HD+5770&interface=PCI-E&memSize=0

check the downloads section on http://www.techpowerup.com/downloads/ for bios flashing software and check the forums for guides to flashing.
 
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I realized that C64, I just suggested to try and go back to default clocks first and see if that gets rid of the bug. Thanks for the info though, as it may well be useful to me too.

I have exactly the same card and the same bios as the opening poster, but mine doesn't exhibit this bug. It clocks up to 3D fine, in default and overclocked state, in Windows 7. It might be motherboard specific.

With regards to overclocking, what are you guys getting out of this card? I'm not finding it clocks amazingly well as C64 hints at. I can get 900/1300 stable, but pushing the core past 940 and the mem say 1340 results in lockups using overdrive.

I've decided to run default speeds, as the 400/900 2D idle is annoying and the performance at 900/1300 is something like 1-2fps higher in minimum framerates, a little more in max, with worse random split second drop offs (probably due to error correction). Not worth it, I'll just wait and crossfire in the future.
 
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Do you have the exact same card ? blue pcb ? mine does 1050 1400 ish but I don't overclock it just tested when i first got it with furmark etc.

bung some ramsinks on the top of the card like I have
 
Yeah, same card, blue PCB - perhaps the bios is holding me back!

Got a corsair 650W PSU as well, not that power is an issue with these cards - just can't get much overclock out of it. I never used furmark though, just ran the Heaven benchmark.

I've seen a few others with overclocks like yours and feel a little cheated. Here is a good thread with the same bios and card as shown here:

http://forums.guru3d.com/showthread.php?p=3545815
 
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