Dear friends my name is umair and i am from pakistan i want some information. I use dell optiplex GX620 Pentium D 2.8 820 and want to upgrade with "Intel E5700 dual core processor" does dell "OHH807" Motherboard support it or not.
The best info i could gather about the motherboard is that it has a 945G Chipset, Which supports upto Core 2 Duo's. So i guess the processor will do fine.
However, you should call Dell Support just to be sure!