Hi all 
Niels and I have built a fun OC system which contains the following parts:
AMD Athlon64-X2 5400+ Black Edition AM2 2800Mhz @ 3100Mhz
MSI K9A Platinum AMD 580X Chipset / RD580 NorthBridge / SB600 South Bridge
2x 1GB PC-6400 DDR2-800 4-5-4-11
ATi Radeon HD 2900 XTX Rev.A1 0705 [Year 2007 Week 05] Prototype
Win XP Pro + SP3 NL
ATi Cat 9.2 for XP32 WHQL
DX9.0c Feb 2009.
Our problem goes as follows, which is the strange speed of the ram:
What he did was that he OC'ed the CPU to 3100 Mhz but the ram should run @ 400 aka 800Mhz DDR , the thing is the ram is running @ 195Mhz aka 390 DDR, why isn't that ram running @ 400 instead of 195 we have it now?
What could be our problem, as we can't find a proper way to get the ram to run 400 Mhz aka 800 DDR.
We'd also want to know what's the easiest way to volt mod the HD 2900 XTX 
I myself have no idea how to volt mod something but Niels seems to have some feel for it
Update on the ram heh
Niels went to the bios and placed the speed setting to 800Mhz and now with the CPU @ 3100 Mhz the ram is 390Mhz aka 780 DDR , probably more normal still no 400Mhz 800Mhz DDR but it's in the better direction, might it be that the CPU speed also decides the somewhat lower ram speeds?
The ram timings is 4-5-11-4 and the voltage is 2.1 volts as Mushkin has specified,
