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Memory Upgrade for IBM PS/2 Model 90 XP 486 9590/8590
IBM PS/2 Model 90 XP 486 9590/8590 memory upgrade specification, PS/2 Model 90 XP 486 9590/8590 maximum memory, memory speed, and memory upgrade options.
Upgrade memory on IBM PS/2 Model 90 XP 486 9590/8590 upto a maximum of 64 MB
Memory modules MUST be installed in pairs The system comes standard with 2 expansion boards in slots on the mother board. All memory is installed on the expansion boards., with maximum per slot in 4 (2 banks of 2) on each of 2 expansion boards; 8 total. memory slots. The IBM PS/2 Model 90 XP 486 9590/8590 takes the Memory modules MUST be installed in pairs The system comes standard with 2 expansion boards in slots on the mother board. All memory is installed on the expansion boards. Memory Type.
| IBM PS/2 Model 90 XP 486 9590/8590 Memory Upgrade Specification | ||||
|---|---|---|---|---|
| Standard Memory | Maximum Memory | Memory Expansion | CPU Type | Model/Chipset |
| 4 or 8 MB (removable) | 64 MB Memory modules MUST be installed in pairs The system comes standard with 2 expansion boards in slots on the mother board. All memory is installed on the expansion boards. |
4 sockets (2 banks of 2) on each of 2 expansion boards; 8 sockets total. | Intel i486 | 100MHz FSB |
IBM PS/2 Model 90 XP 486 9590/8590 Memory Upgrade options.
What are memory sockets or slots and how are these divided into bank?
Memory Sockets or Slots are the place where memory RAM modules are inserted in the motherboard. The IBM PS/2 Model 90 XP 486 9590/8590 has 4 (2 banks of 2) on each of 2 expansion boards; 8 total. memory expansion slots. A memory bank is a group of memory expansion sockets, a bank must be completely filled with memory modules of the same size and type in order for the system to recognize and address the memory. i.e. :
2 sockets (2 banks of 1) This indicates that there are 2 memory slots. These are divided into 2 banks, and each bank consists of one memory slot. So you can add memory one piece at a time for the system to use.
3 sockets (3 banks of 1) This indicates that there are 3 memory slots. These are divided into 3 banks, and each bank consists of one memory slot. So you can add memory one piece at a time for the system to use.
4 sockets (2 banks of 2) This indicates that there are 4 memory slots. These are divided into 2 banks, and each bank consists of two memory slots. So you must add memory two pieces at a time (they must be the same size and type of memory) in order for the system to benefit from the upgrade.
8 sockets (4 banks of 2) This indicates that there are 8 memory slots. These are divided into 4 banks, and each bank consists of two memory slots. So you must add memory two pieces at a time (they must be the same size and type of memory) in order for the system to benefit from the upgrade.
12 sockets (3 banks of 4) This indicates that there are 12 memory slots. These are divided into 3 banks, and each bank consists of four memory slots. So you must add memory four pieces at a time (and they must be the same size and type of memory) in order for the system to benefit from the upgrade.
