Ram type: Compaq Presario v4000t

I bought a compaq presario v4000t during february of this year.

-edit- What is the difference between sdram and other ram types?

I need to know if it has sdram ram or another type (sodimm), unfortunatly i have not been able to locate reliable sources for this information.

When i went to the store, Best Buy, the young guy that was directing me toward the ram told me that "sdram is old, 5 or 6 years back, so it is most likely sodimm, not sdram, if i had in fact bought it this year", which i had. However, when i came home, I noticed that the ram i had bought did not fit.

The ram i bought is made by Kingston, an already accomplished computer outfitter, and it explicitly says "512 mb, ddr sodimm for notebook systems", and on the back it also states, "Upgrade for systems that use JEDEC (generic) memory.

I need to know why this ram will not fit into my computer, and what type of ram i will need.

Thanks to all who can help, it's late and I'm tired of spending all my time waiting for Oblivion to load another map area for 2 hours.

 

SDRAM and SODIMM are 2 different things. SDRAM is Synchronous DRAM - meaning the RAM is capable of sychronising with the CPU bus speed. So all memory sold today is basically SDRAM. SODIMM refers to the size or outline of the memory. Desktop memory is just called as DIMM and notebook memory is just reffered to as SODIMM(small outline dual inline memory module).

Your V4000t probably uses DDR 2 memory, which is not compatible with DDR memory. If you want to be doubly sure, try this utility CPU-Z which is capable of letting you know the type of memory is currently installed in your system(DDR or DDR2).

Basically your system should be capable of using a 200pin DDR2 533/400(PC2 3200/PC2 4200) SODIMM.