I just obtained a non-functioning computer that I'm trying to refurbish for my son to use. It's an Acer 5640 that has a 1.8 dual-core and 3gb of ram. It booted up but to a blank screen. I will now skip all the troubles-shooting I've done and get to my question. I pulled the processor to verify its specs and noticed that its flat on the bottom with the pins remaining on the mobo. Is this correct? I was going to replace the motherboard but I'm used to the processor having the pins on the bottom. I'd hate to get a different motherboard from Newegg only to find it was flat and the reason the pins were on the original Acer mobo is because it was a hybrid configuration. Does this even make sense? If you have any input, I'd appreciate you sharing. I have noted the replacement mobos that others in this forum have migrated to but most are now obsolete, so if anybody has any recommendations, I'd appreciate them.