Hello TPU community, My PC has decided to stop working and is posting a 7F error code. When I hit the power button, the system hangs with the north-bridge fan running at 100% and a "No video" on the monitor. (Won't post + Long beep at startup) I know the long beep has to do with memory. I have verified my hardrives & ram work on a friends computer. I have reset CMOS, dissembled my entire computer, swapped DVI & SATA cables. I also double checked connections while reassembling and tried booting using 1 stick of ram and only OS drive. After all of this, the 7F error code remains. My system specs: Intel Q9550 @ Stock EVGA 780i Thermaltake Ultra 120E 4gb Corsair DDR2 8500 (2 x 2 GB) BFG GTX 295 WD 1TB Black x2 Asus DVD-R/RW Samsung T240HD Antec 1200 Corsair 1000HX Windows Vista Premium 64bit At this point, I can't find/think of anymore solutions to fixing the computer. I believe the issue lies with the m/b and RMA is out of the question since I did not register it within 30 days of purchase I am thinking of finding a replacement for the current 780i; however as we all know LGA775 socket is old and trying to find a motherboard with DDR2 slots is near impossible. I built this computer 4 years ago with the intention to play demanding games and Fraps game play. Now as a college student I only use Office 10' and edit videos from time to time. I have have noticed the ultrabooks are very thin/light and provide decent processing, would it be better to just part my current desktop and buy one? Listed below are possible routes I may take. Please let me know what you think! Route 1: Buy LGA 775 M/B with DDR 2 slot. (If possible still) Route 2: Buy LGA 775 M/B DDR 3 + DDR3 ram? Route 3: Buy latest motherboard for Corei5 + ddr3 ram? (If this will cost more than $3-400 then forget it) Route 4: Part computer parts and purchase an ultrabook? Thanks!