HIS HD2900XT Crossfire on DFI RD600, 3Dmark06>19k

[Kinc]

Awsome macci

Looks like 950/980 is enough to give Ultra SLI a good challenge in 06. Makes one drool over what 1150MHz engine clock might achive in crossfire

[GoriLLakoS]

I have problems when i have 2 X 2900 on a P5K DLX.

When i am opening the Catalyst Center in disappears and appears on the screen for 1 second, every 20 seconds.

What is going on?

@Macci How did you managed to upload scores to FM?????

[ZoLKoRn]

At least the 3DM2001 Nature and fillrates were scaling nicely from 990 to 1010 with the default BIOS (even though the timings are auto-adjusted at 1GHz). I got the best score so far at 1143MHz memory clock for that benchmark.
Could be different in 3DMark06 and 05 though - need to do more testing.

There is a fairly big drop in performance when you pass 833MHz Memclk. Memory timings are automatically adjusted @714, @833, @909 and @1000. The change @833 seems to give the biggest performance impact.

The test runs @950/980 have a custom VBIOS which keeps the memtimings at default ("714MHz timings"). It takes around 900MHz with these timings to match the default timings @980MHz.

oh it nice so it very nice if you sharing it (bios) he..he...

[VictorWang]

I have problems when i have 2 X 2900 on a P5K DLX.

When i am opening the Catalyst Center in disappears and appears on the screen for 1 second, every 20 seconds.

What is going on?

@Macci How did you managed to upload scores to FM?????

same here before 8.381 driver/ccc came out.
'coz of language issue.
u can try a Eng version OS.

upload to FM is not a problem @.@

[ZoLKoRn]

Hello Victor I have some problem for RD600 with 8800GTX on 3D bench it not smooth run sometime is stumble and stop run, How fix it or where is start find this problem ?

best regards
ZoLKoRn

[purecain]

damn i wish i new how to hack the bios.... i'm getting a pityful 15000-16000 in 3dmark06 in crossfire... also the amd overclock tool wouldnt let me clock both cards... so i selected same clocks for both cards and overclocked the one card... scores havnt changed unfortunatly... so i'm thinking that i would need to bump up my cpu clocks to at least 3.7 to get a score any where near decent.... also i gained over 100points in 3dmark06 when i upped the pcie bus to 120....

[Gambit_2K]

Can anyone of you guys with a card confirm that the things that we are seeing in some reviews are true. That overclocking this card gives barely gives any more FPS in games?

[perkam]

Can anyone of you guys with a card confirm that the things that we are seeing in some reviews are true. That overclocking this card gives barely gives any more FPS in games?

Wrong thread m8.

Nice results there, Macci 0_0

Perkam

[fern420]

damn i wish i new how to hack the bios.... i'm getting a pitiful 15000-16000 in 3dmark06 in crossfire... also the amd overclock tool wouldn't let me clock both cards... so i selected same clocks for both cards and overclocked the one card... scores havnt changed unfortunately... so i'm thinking that i would need to bump up my cpu clocks to at least 3.7 to get a score any where near decent.... also i gained over 100points in 3dmark06 when i upped the pcie bus to 120....

guys, im in the exact same boat, ive been banging my head against the wall for a week. my number one card goes into 3d clock speeds just fine, i can even over clock it in overdrive just fine but the number two card seems to stay at 2d clock speeds all the time according to amdclocktool. im not sure, it could just be the amd clock tool displaying the wrong info because when i alt and tab out of a game and look at the temp page of the amdclocktool it indicates both devices at 3d clock speeds but i still have one card much hotter than the other.

[X.T.R.E.M.E_ICE]

Is there a OC tool for crossfire yet ?

[Zytek_Fan]

Is there a OC tool for crossfire yet ?

I think the newest version of ATi Tool works.