RAM Speeds

Hi There

I just bought a new HP Pavillion with the following RAM inside:

hynix 512MB 1Rx8 PC2-4200U-444-12

There is one extra slot, so I bought off ebay:

hynix 1GB 1Rx4 PC2-3200R-333-12

And it doesn’t work on it’s own or with the original RAM. Can you please tell me where I went wrong? :a I can find out more Hardware info of my PC if needed.


wwell it looks like you bought the wrong ram.you need pc2-4200(if that is whats truely whats inside your box?? my best suggestion is to go to the crucial sight(www.crucial.com)let it do the automatic check on whats in the machine.
then if your still inclined to get more ram then match it up with what was told to you on the crucial sight… just for you info you can only use 1 speed of ram!!!
you cant interchange speeds.
you can interchange makers(but sometimes it still causes problems,diff timeing,lanticys,ect…)
good luck :slight_smile: