64meg+32meg=48meg?

[Guest]

I have a friend that just ordered a stick of 64meg ram from crucial. He has a old 233 Packard Bell and is trying to increase its performance until he can afford a new pc. After putting in the new 64meg stick with the 32 meg stick it only registors as 48meg by the comp. By putting it in by itself it registors as 16meg. Is this stick probably damaged or could there be some other reason. Any help would be nice. Thanks

 

[Arrow]

This is a problem that I myself have seen with a Compaq Presario 4760 (166MMX). It will take the amount of the PC100/133 DIMM and divide by 4 to get the amount it recognizes. As to WHY, I am unclear of the specific reason - maybe the motherboard just won't recognize it properly.

Rob
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[juice]

Did he make sure it can take 64 mb ram? Sounds like his motherboard will not see 64 and reads it only as 16 mb. I would try sticking a 32 mb stick in it and see if it comes up to 64 mb. Also see if the ram of 64mb works in another computer to make sure the ram is really 64 mb. Good Luck

 

[Guest]

I have a similar problem - I put a 64 meg PC100 in with a 64 meg PC66 and got a 16M increase - this was a Spacewalker 569. I put the 64M PC100 in by itself ang got 16 meg! I put the PC100 in a newer board and it works fine. So I don't know what the deal is. Isn't PC100 backward compatible?

DaveC

 

[Crashman]

Certain older chipsets only support memory chips of smaller sizes of 2MB per chip, so that would be 32 chips for a 64MB module! I know the VX had this problem! Others only support 32MB of SDRAM but 64MB of EDO DIMM RAM. It is the fault of the chipset, there is nothing you can do!

Suicide is painless...........