I think you should look at crucial.com next.
I need to upgrade my memory for " HP Compaq dc7100 Ultra slim Desktop PC PN - DX877AV" but very confused about the specs for the memory and HP will not help me it is warrenty.
I need to know the right specs & documentation for this computer so i can buy some memory. This a Intel P 4 based PC.
PC2700 and PC3200?