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#161
Did you re-apply the CPU thermal Paste?
Did you have only one RAM card installed?
Did you disable Cool 'n Quiet?
Any of these could have caused/contributed to the BSoD.
Your BSoD:
STOP 0x00000050: PAGE_FAULT_IN_NONPAGED_AREA
Usual causes: Defective hardware (particularly memory - but not just RAM), Faulty system service, Device driver, NTFS corruption, BIOS
Invalid system memory was referenced.
This can be caused by the CPU overheating, questionable RAM, graphics card RAM.
A device driver shouldn't be a cause during installation.
If your boot manager has three versions of Windows 7 and XP, you need to do as Greg suggested, wipe the entire HDD and start the installation on a clean hard drive.
Can you use the Partition Wizard CD and get a picture of the hard disk layout, and post here?