I am having a hard time finding the specs on this model. It is the smallest Optiplex GX620 that they make. I need to know specs on memory, what is the limit on processor upgrade, etc. This was the closest post I could find for this request.. This computer has no slots at all for adding any card. It has built into the motherboard audio, 25 pin printer port, 9 pin port, ethernet, 5 usb on back and 2 on front with head phone and microphone jacks, only a dvi port for monitor NO VGA without use of adapter, and the power supply uses a model DA-2. Please help with any info or where to find info. I keep getting info on the larger case models. I need to know memory type and speed to install and what is the highest performance processor I can use. The hard drive has been removed but from the cables it takes a sata hard drive. Really small case with not much room. Only 2 RAM memory slots. I hate these small cases but I got stuck with several and I need to get them running to get my investment back. Please help!!