Do they make one

Does anyone know if IBM makes a motherboard. A friend of my needs some ram but doesn't know how much it can handle. The only thing I know is the chipset is a SIS5595 and the heatsink on the chipset says Xcel 2000. The book that came with it said something about IBM. The model# is M748LMRT.

The SiS 5595 is the southbridge part; they were paired with a few different norhbridge units - the 620 and 530, for starters....

IBM has probably built their own motherboards, but I'm doubting that they EVER used an SiS chipset...they were always really buddy-buddy with Intel.

The 530 chipset would be limited to three memory modules up to 1.5GB total system memory.

The 620 chipset supports up to 256MB/bank of memory also up to a max of 1.5GB.

Suffice to say, you could probably plant as much memory as you could afford into one....

I just recognize now the model of the motherboard in question. It's made by PCChips. This model in particular will take up to 768MB of memory in 3 DIMM slots, so it'd be up to 256MB modules.

I'm pretty sure this would be an SiS 620 northbridge.

Here's a link to the page....

http://www.pcchips.com.tw/M748LMRT.html

Hope this helps - especially if you need drivers and stuff!