UPDATE: Full Stop Code: 0x0000000A (0x00000010, 0x00000002, 0x00000000, 0x8051AA58) My PC build Specs -Intel DX38BT Motherboard -Corsair XMS3 2048MB Dual Channel PC10600 DDR3 1333MHz Memory (2 x 1024MB) -Intel Core 2 Quad Q6600 Processor -Ultra LSP650 650-Watt Power Supply -HIS Radeon HD 3650 512MB PCIe w/Dual Link DVI -Western Digital Caviar SE16 SATA 320GB Hard Drive -CD-rom 56x (From my old server) -Case (From my old server) Well I get a BSOD after trying to install Windows XP on my new built pc. It formated good, it get stuck on installing OS about 39%. 1Then I has a little bar on the left it goes about more than half way. The screen turns black and BSOD. I am 100% these parts are compatible, I went on support.microsoft.com and check their HCL and my board was on it. I followed the steps in the booklet, In the book let it says that removing the install to fix the problem is RARE. 1.Restart your computer. NO FIX 2.Make sure any new hardware or software is properly installed... NO FIX 3.Click start > Help and support> Get help from Microsoft. .... Well I wish the OS was Installed 4.Click start > Help and support> Fixing a problem... No os 5.Disable or remove any newly installed hardware.... I tried only 1 gb of ram and nothing 6.Microsoft Web Site at:..... I studied it and found no help 7.Using a current version of your antivirus software... New build no OS installed due to BSOD 8.Verify that your hardware device drivers and system bios are latest available version.... NO FIX 10.Disable Bios memory options such as caching and shadowing Well skip that 11.Run any system diagnostic software supplied with your computer....Once agian no os installed 12.Verify that your computer has the fatest Service Pack... No os installed.. 13. Press f8, select LAST known good configuration Not on the list, no os Went on Microsoft's Web Site on Stop code 0x0000000A (Irql_Not_Less_or_Equal) "This behavior can occur if there is incompatible hardware or an incompatible device driver on your computer." http://support.microsoft.com/kb/311564/en-us Well the 1st and 2nd step are skipped because of no os 3. Remove any unnecessary hardware from the computer... Well I removed the USB Keyboard and mouse and ran the computer only on power plug and monitor and NO FIX 4. If you continue to receive this error message, you may need to flash the BIOS on the computer's motherboard.... Well I removed the BIOS battery and put it back about 15 min (nothing) Put all the settings on default (nothing)... More research done.... -"If this issue occurs after the first restart during Windows Setup, or after Setup is complete, the computer BIOS may be incompatible with Windows." Well on the HCL on Microsoft's site said it WAS compatible so its not that. -Make sure that you have sufficient hard disk space... 360GB is well enough -Disable or update device drivers... No OS -Remove all third-party drivers... No OS I Found on the Windows XP booklet "Under rare circumstances, you may to unistall Windows XP Professional and return to your operating system."