IBM 1-8MB 286 Memory Expansion Adapter (MCA)

This MCA memory expansion card allows for up to 8MB of RAM to be installed in PS/2 Models 50, 50Z and 60. It supports extended memory and LIM EMS 3.2.

Causes

 * Unknown

Solutions

 * Unknown

P/N: 61X6752
''P/N 61X6740 is printed on the board. Label on ROM chip U14 is dated 1986 and bears the P/N 11F8060.'' The capacitor series are unknown. Markings are provided for later identification.

Basic PCB Name
If parts are not available or different selection is preferred, you can use the values in the Original Parts section to perform a parametric search.

Kits

 * Digikey BOM: https://www.digikey.com/

Related Links

 * IBM Memory Expansion Adapters on Ardent Tool of Capitalism