as my pc was put together by some one i do not know what motherbourd is in it so what memory dose it take?

If you only have 256 memory then you don't even have enough to run XP hardly, is it an old computer?? Hope you didn't pay more than $300 for it. Most new computer take 184 pin memory.

To find out download SiSOftware Sandra

http://www.pcworld.com/downloads/file_description/...

It will tell you what kind of motherboard and memory the computer has.

Pop open your computer case and take the memory module out. Look carefully at the memory stick and it will tell what kind of memory it is, SDRAM or DDRAM and speed. For example, 256MB DDR 400-- that means when you get another memory stick, it must be either 256MB DDR 400 PC 3200 or 512MB DDR 400 PC 3200 or 1024MB DDR 400 PC 3200. It is important that you must have the exact speed (PC3200, PC4200, etc.) when you're adding memory to your computer. Other factors to consider are operating system and the motherboard's limits. In Win98, maximum memory installed is 512MB and most motherboards can take up to 2GB Max. Otherwise, your computer could blow up!! I exaggerated a little bit.

PC3200 is backward properly matched with PC2100 so that you may not have any mission, except that the 3200 will run at 2100 speed, a waste extremely. some Motherboards are extra fussy than others and may no longer boot yet in theory it truly is going to paintings. playstation all those previous forums and CPU reminiscence mixtures,esp 2100 are too sluggish extremely presently.

Remove a memory stick and read it or take it with you to get more memory.