Help on bad performing 7800GTX

[sai]

Hey I bought this used EVGA 7800GTX 512 gfx-card from AndreYang and so far I'm pretty disappointed of it. It has a modded BIOS with 650/1850Mhz clocks and performs like, well....
I get ~8900points in 3Dmark05, 100k in Aquamark, 20k in 3Dmark03 with 1GB 245Mhz 2.5-3-3-6 Gkill GBHZ, 2x2.7ghz Opteron and DFI Ultra-D board. Sounds pretty low huh? Maybe someone could give me the default BIOS of that card, maybe that screwed things up? Help me!

(AA,AF,Vsync,etc. was disabled)

[t024484]

Hey I bought this used EVGA 7800GTX 512 gfx-card from AndreYang and so far I'm pretty disappointed of it. It has a modded BIOS with 650/1850Mhz clocks and performs like, well....
I get ~8900points in 3Dmark05, 100k in Aquamark, 20k in 3Dmark03 with 1GB 245Mhz 2.5-3-3-6 Gkill GBHZ, 2x2.7ghz Opteron and DFI Ultra-D board. Sounds pretty low huh? Maybe someone could give me the default BIOS of that card, maybe that screwed things up? Help me!

(AA,AF,Vsync,etc. was disabled)
See what happens if you gradually lower your memory clock to 1600,
like 1800/1750/1700/1650/1600.
You will probably see that your memory is overclocked.

[sai]

Problem's already figured out. I'm using the lower PCIX slot and it's jumpered to 2x. SO I need to Sli-jumper it to get 8x/8x for both slots. :)