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Memory Upgrade for Apple Macintosh Quadra 840AV
Apple Macintosh Quadra 840AV memory upgrade specification, Macintosh Quadra 840AV maximum memory, memory speed, and memory upgrade options.
Upgrade memory on Apple Macintosh Quadra 840AV upto a maximum of 128 MB
72-pin DRAM SIMMs, with maximum 32MB per slot in 4 memory slots. The Apple Macintosh Quadra 840AV takes the 72-pin DRAM SIMMs Memory Type.
| Apple Macintosh Quadra 840AV Memory Upgrade Specification | ||||
|---|---|---|---|---|
| Standard Memory | Maximum Memory | Memory Expansion | CPU Type | Model/Chipset |
| 8 MB or 16 MB (removable) | 128 MB 72-pin DRAM SIMMs |
4 sockets | 40MHz Motorola 68040 | 40MHz FSB |
Apple Macintosh Quadra 840AV 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 Macintosh Quadra 840AV 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.
