View Full Version : IBM 8556 Memory-Upgrade

July 14th, 2009, 06:35 AM

i want to spend more memory for my IBM 9556-0BA ( today it has 8MB ). But I don't know which type of PS/2 memory does the PC need. Fastpage / Edo / parity or non parity / ECC :confused:

I want to upgrade the PC to 16MB with one or two 8mb memory sticks.

please help!

July 15th, 2009, 02:58 AM
There's some information at http://ps-2.kev009.com:8081/ohlandl/ps-2.html

July 15th, 2009, 03:26 AM
More information.
On page 258 (document page, not PDF page) of the document at http://www.ibmmuseum.com/OhlandL/books/ps2-hmm.pdf, the IBM part numbers for the various RAM modules of the 9556 are listed.
The 8MB module is IBM part number 64F3606. An Internet search using that part number has many hits.