Thanks......This is the only info I could pull up:
HP s5705f Slimline
AMD Athlon II x2 260 Processor 3.2Ghz
4 GB Ram
64 bit Win 7 OS
Serial #: 3CR1100N7D
Product #: QP681AA#ABA
Motherboard is: M2N68-LA (Narra5)
It indicates:
Supported DIMM types:
PC2-5300 (667 MHz)
PC2-6400 (800 MHz)
Non-ECC memory only, unbuffered
Supports 2GB DDR2 DIMMs
Supports up to 4 GB* on 32 bit PCs
*32-bit operating systems cannot address a full 4.0 GB of memory.
I'm not very computer literate, but I think it's OK since it is a 64 bit...LOL..! Thanks for your help.