Default voltage for 5870?

Quote:

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Originally Posted by janolle

Afterburner sets any card to 1.162v when you press reset. It's the programs own default voltage for 5870 cards. The cards come with 3 different voltages: 1.125v, 1.162v and 1.175v. I'm not sure if 1.162v

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+1 :up:

Little bit offtopic but how can I lock the core clock at 850 or higher? I basically want to disable the power saving features alltogether!

Quote:

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Originally Posted by janolle

Afterburner sets any card to 1.162v when you press reset. It's the programs own default voltage for 5870 cards. The cards come with 3 different voltages: 1.125v, 1.162v and 1.175v. I'm not sure if 1.162v cards will come out anymore since the newest bios seems to be 1.175v.
I have two 5870 cards. One is with 1.125v default voltage and the other has a default of 1.175v. Verified with Gpu-Z in crossfire mode. Afterburner sets 1.162v for both cards when reset is pressed and that's just wrong.

EDIT:
1.125v card owners can also verify this by checking how the card overclocks without pressing the reset button in afterburner. It will overclock better after you press the reset button and it increases the voltage to 1.162v.

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This post says it all :rolleyes: :up:

BTW my card is one of 1.125V GPU and it does quite well OCed as seen here:
http://www.youtube.com/watch?v=zoPIhfG6cHg

1107MHz @1.312V on air :D
I did push 1200MHz @1.362V but it wasn't stable after surpassing 60C on the core and god knows how hot PWM was at that point!

I can add that the 1.174v card is extremely noisy compared to the 1.125v one. It's as noisy as a HD4890 with the stock cooler while the 1.125v card is bearly audible. It's not just the voltage since both cards run at roughly same temperatures. The fan profiles on the newer 1.174v card makes a stupid jump at 85C when it goes from 33% to 37%. Such a notch ofcourse makes the fan constantly changing speeds. So it's "hissss, wroaaar, hissss, wroaaar, hissss, wroaaar" when playing cards that really stress the card. Changing the voltage to 1.125v helps a bit but the fanspeed still jumps around occasionally.