I need help!Very quick!!

Hi!
I've got problem,cuz i unscrew my MPC 4000,and when I add Ram( KVR133X64C2/256 Kingston)the MPC don't see new RAM?
What I must do?
Brand and parametrs of ram are good.

Sorry,for my English,but I'm from Poland.

Props,Greet.

I had a similar problem like this one time before myself. I figured out that I couldn't use pc-133 ram like in your case, instead I had to go with pc-100.

If you can get your hands on some pc-100 memory, I'd give that a shot before considering anything else.

http://dealnews.com/memory/prices/PC100-SDRAM/15/256MB.html

If that fails, then it would be safe to say that there's a good posibility that there's damage to the contacts in one or both of the memory slots or something directly connected to that.

Ok,I was more push this bars and it works.
But when I hooked up 2 bars of RAm the MPC see only 277 MB-is thta good orit would be more than 277 MB.
PS:I had installed 512 MB in 2 Bars of 256 MB
Ad if somebody could answer me in this thread : viewtopic.php?f=18&t=137882

Thanks in advance,greets