A8N-SLI Deluxe-- What settings can I tweak? My system is running slow?

[sofakng]

Here is the system I just bought... (with some parts from my old PC)

ASUS A8N-SLI Deluxe Motherboard
AMD Athlon64 3500
BFG Geforce 6800GT OC (PCI-E)
WD 74GB Raptor HD
1GB RAM (Corsair XMS PC2700)

The system is 100% stable and runs pretty good, but I'm only getting between 4500 and 4800 with 3dMark05. Those scores seem a bit low for my setup and I'm guessing it's because of my RAM.

I've tried changing the one DRAM setting in the memory (it's at the top of the page, I forget the name) and I changed it from "Auto" to "DDR400" but it didn't seem to make any difference... (in fact, I got a LOWER 3dMark05 score). So... I'm wondering if I could overclock my RAM to run at DDR400 since I'm running XMS series (which I was told is very good). I'm also wondering if I should manually set the DRAM timings in case the motherboard isn't detecting the 2-2-2 properly.

So, my overall question is this: How can I tweak the settings of my A8N-SLI motherboard?

Thanks for any advice.

 

[eva2000]

that one card or 2x 6800GTs ? for one card it's about right since 3dmark05 is GPU intensive and disregards much of cpu/memory specs

 

[Insomniak]

If it's a single 6800GT, that seems about right. You can probably get it above 5k by optimizing windows if you haven't done so already. It's about 3 - 400 below normal, and yeah, I'd guess that's the PC2700. Get some 3200 ASAP.

Anyway, to hell with 3dmark, how do your GAMES play?

 

[sofakng]

Are there any guides explaining what each of the RAM settings mean? I'm using Corsair PC2700 XMS (w/included RAM heatsinks), so I'm guessing I can push these things to PC3200 but I'm not sure what each of the settings mean... The sticks are also rated CL-2 if that matters...

Also, whats the best program to measure RAM speed? SiSoft Sandra?