The IBM/Lenovo PS/2 Model 90 XP 486 9590 KLA uses - - memory upgrades as listed in the detailed specifications below. All memory and other upgrades compatible with this system are listed on this page.

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Memory Type - -
Base Memory 4MB (Removable) 8MB (Removable)
Upgrade Slots 4 Sockets (2 banks of 2) on each of 2 expansion boards; 8 Sockets total.
Maximum Memory 64MB
Maximum Module Size
CPU & Chipset Intel i486DX2 50 MHz
Bus Architecture MCA

We currently do not offer any upgrades or upgrades are currently unavailable for purchase online. Please contact us to order upgrades for this device.


Upgrade References

The table below are references to other manufacturer part numbers which are specific to this device, have identical specifications to our components. This information is made available for your reference.
Part# Source References
KTM0128 4MB Module Kingston
KTM0130 8MB Module Kingston
KTM0902 2MB Module Kingston