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5870 bios on 5850

wolf

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has anyone actually tried this? from what I'm seeing on other forums it seems to work, and a TPU member seems to have gotten an Asus 5850 with this bios on it from factory, the very same Asus 5870 bios I have put on my sapphire card for increased CCC limits...

Even though the PCB's are different it appears the bios works in increasing stock clocks to 5870 levels, and also BOTH core and memory voltages, which should help particularly in memory overclocking on a 5850 which I believe uses lower mem voltage and has no means for adjustment.

so yeah thoughts on the procedure, and results if it has been done plz :)
 
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It's been done before, but you may as well just use the ASUS 5850 bios and get the same results, but play it safe.
 

wolf

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My 5850 is Asus so it's unlocked, the only benefit for me would b higher memory voltage
 

maxor1980

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an answer? because i'm waiting an answer for my 5850 with 5870 bios ! thanks :)
 
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It's been done at XS, Hardforum, Overclockers forum, etc.
Depending on which bios you use you bump from 1.08v to 1.12-1.17v.
HD 5870 clocks too but shaders still at 1440.

I'd say stick to the Asus 5870 bios.
The earlier date bios is the lower voltage one, thae newer date bios is the higher voltage one to fix the eyefinity issue.
 

maxor1980

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I'm using at this moment an Asus bios of 5850 to unlock my card, so i can put my 5870 bios at 1,15v on my 5850? so it's ok ?! I use Radeon Bios Editor but i don't understand everything inside :(

(my langage is no perfect i'm french i'm sorry :D )
 
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