There is an issue but boot with 1GB of ram, install Vista SP1 and then put the rest of your ram in 
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O/S:Windows Vista Home Premium 64Bit SP1
CPU:Intel C2Q Q6600 (G0) 3.65GHz w/Thermalright Ultra-120
MB:XFX 780i P04 Bios
RAM:4GB OCZ DDR2 Reaper EB Edition 810MHz|4 3 3 8 2T
HD:150GB WD Raptor
GPU:XFX 9800GX2 1024MB|700MHz GPU|2.2GHz Mem|1750MHz Shader
Monitor:Samsung 22inch Widescreen
Sound:SB X-Fi Xtreme Gamer
Input:Steelseries 5hV2 Headset|HABU Gaming mouse|Saitek Eclipse2 Keyboard|Tagan BZ 1300W PSU | 3DMark06:18,144
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