Low 7800 gtx sli score?

[xl80325]

My 3dmark 05 score is only 9870 under default setting. And when I see the details of my system in 3dmark, it says the vag core clock is 275 which is the default clock for 2d mode. But after I change to 3d performance in the control panel, which has a 460 core clock, it still shows 275 in 3dmark and score is still low.

Updateroblem sovled. I changed the pcie slots of the two cards and now I got 12000 in 3d mark05

 

[xtknight]

You're probably CPU bottlenecked...IIRC the FX-57 is still faster than the dual cores at single-threaded stuff...

 

[xl80325]

But I think 2.6g should be fine because I think they use fx55 in their reviews and since fx55 is 2.6, at least my score should be comparable to them, which is around 11000

 

[nippyjun]

Hi, Are the bios versions of your 7800's the same. Ignore the bios sticker on the cards, but check in the display properties. I believe you will need to install each one separately to see the bios version.

You probably already know that BFG has an update tool to make the bios .25. So i think if your cards each have a different bios, or if they are not the .25 version, consider updating them. You can email BFG for the updater.

 

[xl80325]

But I think if they have different bios then you can't enable sli right?

 

[mb]

Just as a simple check: are you using the latest drivers?

 

[xl80325]

i use 77.72 WHQL downloaded from Nvidia's site. And anoboday knows how to check the second card's bios? It is 05 in control panle but I'm not sure about the second one

 

[IamTHEsnake]

21% efficiency of the 2nd card right now. Ouch.

I wish I could help you.