My system as followed: Mobo gigabyte EP45-UD3R CPU E6550 Ram Corsair ddr2 2GB bus 1066 VGA HD4850 HDD WD green 2tb (sparking new) + WD 500gb x 2 (1 year old) PSU CoolerMaster 400w The problem is: I cannot boot nor install new windows by any means, tried 4 different DVDs, none works. At first I thought the ram is at fault (heard multiple beeeps at POST screen) so I replace a new one (listed above) but it seem not to be the right solution. I have an ghost image of my laptop so I tried to restore it to my desktop, but it didn't work either. Any helps are much appreciated. PS: I can boot to miniXP by using Hiren's boot CD, check the disks and data inside, all seem just fine.