Posting for my girlfriend as she just got herself a nice new rig...unfortunately we can't get it working.
Specs and what we've tried...
Intel Core i5-750 Lynnfield 2.66GHz LGA 1156 95W Quad-Core Processor
BX80605I5750
G.SKILL 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10666) Dual
Channel Kit Desktop Memory Model F3-10666CL8D-4GBHK
GIGABYTE GA-P55-USB3 LGA 1156 Intel P55 USB 3.0 ATX Intel Motherboard
CORSAIR CMPSU-650TX 650W ATX12V / EPS12V SLI Ready CrossFire Ready 80
PLUS Certified Active PFC Compatible with Core i7 Power Supply
Seagate Barracuda 7200.12 ST3500418AS 500GB 7200 RPM SATA 3.0Gb/s 3.5"
Internal Hard Drive -Bare Drive
EVGA GeForce GT 240 PCI-E 2.0 1GB DDR5 Graphics card
Basically, we go through a fresh install of Windows 7, and it hangs up at the "splash" screen after finishing the install and restarting for the last time. It just won't start windows.
We've tried putting drivers on pre-windows, resetting the CMOS, removing USB devices and RAM. I put my HD (with Windows 7 32 bit) in her machine, and it seemed to work fine. I put her HD (with her Windows 7 64 bit) in my machine and it ran fine.
We tried installing my Win 7 32 bit on her HD, but that didn't work either. Her old HD with Win XP works fine though.
Starting to get a little frustrating...lemme know if you need more info.