Random BSOD's on a new build. Also question about cpu voltage

Specs are:

GIGABYTE GA-M57SLI-S4 AM2 NVIDIA nForce 570 SLI MCP ATX AMD Motherboard - Retail
EVGA 512-P3-N801-AR GeForce 8800GT 512MB 256-bit GDDR3 PCI Express 2.0 x16 HDCP Ready SLI Supported Video
SeaSonic SS-500ES ATX12V 2.2 / EPS12V 2.91 500W Power Supply - OEM
AMD Athlon 64 X2 6400+ Windsor 3.2GHz Socket AM2 125W Dual-Core Processor Model ADX6400CZWOF - Retail
mushkin 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory Model 996527 -
Seagate Barracuda 7200.10 ST3250410AS 250GB 7200 RPM SATA 3.0Gb/s Hard Drive - OEM
SAMSUNG 20X DVD±R DVD Burner with LightScribe Black SATA Model SH-S203N - OEM
MASSCOOL G751 Shin-Etsu Thermal Interface Material
ARCTIC COOLING Freezer 64 Pro 92mm CPU Cooler

This is a friends build and he is very frustrated.

Speedfan and CPUZ report the cpu voltage as higher than bios. So he has made the voltage in bios lower to 1.35 and it shows up in both as 1.4 or very close to. Any suggestions here?


He has rebuilt it 3x's with fresh a install of Vista Ultimate and a day or 2 later he will get BSOD's that happen fairly consistently once they start.

I know his temps are fine unless Speedfan is all messed up.

On the 2nd build, he did a stress test using OCCT and it passed the 30min test with OK heat results, but then next day, BSODS.

We have manually put in the memory timings.

The x2 6400 needs to run around 1.4. My 6400 Black Edition showed 1.42v at stock settings..

As for the BSOD, there are a variety of reasons why. Its best to post some of the details of the error message.