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Memory Upgrade for Apple Power Mac G4 Dual 400
Apple Power Mac G4 Dual 400 memory upgrade specification, Power Mac G4 Dual 400 maximum memory, memory speed, and memory upgrade options.
Upgrade memory on Apple Power Mac G4 Dual 400 upto a maximum of 1.5 GB
PC100 SDRAM DIMMs. The system will see 2GB but Mac OS 9 will only recognize up to 1.5GB., with maximum per slot in 4 memory slots. The Apple Power Mac G4 Dual 400 takes the PC100 SDRAM DIMMs. The system will see 2GB but Mac OS 9 will only recognize up to 1.5GB. Memory Type.
| Apple Power Mac G4 Dual 400 Memory Upgrade Specification | ||||
|---|---|---|---|---|
| Standard Memory | Maximum Memory | Memory Expansion | CPU Type | Model/Chipset |
| 64 MB (removable) | 1.5 GB PC100 SDRAM DIMMs. The system will see 2GB but Mac OS 9 will only recognize up to 1.5GB. |
4 sockets | 400MHz PowerPC G3 | 100-MHz system bus |
Apple Power Mac G4 Dual 400 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 Apple Power Mac G4 Dual 400 has 4 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.
