> IBM Memory > IBM Power Computer Memory
Memory Upgrade for IBM Power 775 Supercomputer
IBM Power 775 Supercomputer memory upgrade specification, Power 775 Supercomputer maximum memory, memory speed, and memory upgrade options.
Upgrade memory on IBM Power 775 Supercomputer upto a maximum of 2TB/ Drawer
PC3-8500 DDR3 Registered ECC DIMM 240pin memory, with maximum per slot in 128 Sockets / Drawer memory slots. The IBM Power 775 Supercomputer takes the PC3-8500 DDR3 Registered ECC DIMM 240pin memory Memory Type.
| IBM Power 775 Supercomputer Memory Upgrade Specification | ||||
|---|---|---|---|---|
| Standard Memory | Maximum Memory | Memory Expansion | CPU Type | Model/Chipset |
| 32GB(Removable) | 2TB/ Drawer PC3-8500 DDR3 Registered ECC DIMM 240pin memory |
128 Sockets / Drawer | ||
IBM Power 775 Supercomputer 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 Power 775 Supercomputer has 128 Sockets / Drawer 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.
