Hello. Today I have upgraded my CPU from Intel core 2 duo E4400 to E7500. Also I added 2gigs of ram to my system. When I boot up my PC Windows detected my CPU and installed drivers and asked me for a restart to take changes. When I restart my PC it won't boot up. I just see a black screen. All fans are working properly. When I turn off the PSU and start PC again everything works well but when I restart PC again it just won't restart no matter what. Please help me guys! It's a new hardware I don't want to demage it with shut down's like that. Also my motherboard is fully supported with the CPU the motherboard is Intel DG33BU.