Is there a limitation on the size of DIMM modules for a mobo??

[Maximilian]

The mobo in question is a TYAN Tiger 100. It can support up to 1 gig of memory in 4 slots. It says on their website it supports modules of 256 MB SDRAM but it says nothing about whether or not it can take a 512 stick. Is there a limitation on the size of the module for mobos? Its a dual cpu mobo btw.

 

[Peter]

In general, yes there is. Not so much on the mainboard, but rather on the chipset. The limit also isn't in the total memory size of the DIMM, but rather in the memory size of the individual RAM _chips_.

Tiger 100 uses what chipset?

 

[Steve]

Intel 440BX

 

[Maximilian]

Does the BX have a limit then? Ive read that link before and it didnt say anything.

 

[Peter]

Yes it does. 128 megaBITS per SDRAM chip, 256 megaBYTES per DIMM. 256-MB DIMMs must be made from 16 pcs of "16Mx8" 128-Mb chips to be compatible.

 

[Maximilian]

Ok thanks for that.

 

[xgsound]

The memory used on this board is generally refered to as "low density memory" On a 256 Mb stick this can be recognized by the stick having chips on both sides of the board.

Crucial has a service on thier site that finds the right memory for your board. You tell them what board you have, and they show what compatable memory they have. I've used it twice with success.

If you can find someone that has it lying around, it will be much cheaper, but Crucial usually has it.


Jim