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how to get >700MHz core on 4850?

post #1 of 8
Thread Starter 
The ATI overdrive in CCC only allows 700MHz max on overclock. Right now i achieved 700/1130 with crysis running fine, Accelero S1 + Yateloon 120mm x2 idle/load temp being 39/55C.

I'm sure my core can take more than 700MHz, since 4870 has it on 750, which has essentially the same chip (maybe more voltage). Does anyone know if there's a way to go pass the 700MHz limit?

I'm also planning to pencil mod this card, following this thread to squeeze more juice out of my card.
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post #2 of 8
http://www.xtremesystems.org/forums/...d.php?t=192411

It seems you have to OC via BIOS flashing, have fun :X
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post #3 of 8
Can't you use Rivatuner to OC past 700 for the core when it's updated?
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post #4 of 8
Quote:
Originally Posted by Rpg2 View Post
Can't you use Rivatuner to OC past 700 for the core when it's updated?
Probably, but who knows when it will be updated?
post #5 of 8
if you're not in a rush the 700mhz/2250 OC on air should hold you for another month Rivatuner gets updated.
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post #6 of 8
I'm afraid to OC this card with stock cooling. Im at 70 degrees idle.
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post #7 of 8
So buy a cooling unit, I am using a thermaltake duo orb and it idles at 29c same as my cpu on liquid.
As a side note I managed a 700 core and 1135 clock stable. That was just a quick and dirty version, I need to go into the bios and flash it tonight and then try adjust it from there, will let you know if I can adjust the core clock over 700.
Edited by Poltergeist - 6/29/08 at 10:13pm
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post #8 of 8
Use the fan hotfix.
    
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