72-pin SIMM
30-pin SIMMs
72-pin SIMMs must be installed in groups of two modules to a bank of memory
That depends on the age and class of motherboard. You must use the correct memory modules and the correct number of them. Usually this is in pairs.
They are installed in groups or banks of two. Most older motherboards that use SIMMs have one to three banks that can be filled with two, four, or six SIMMs. 72-pin simms are installed into groups or banks of two
The Bank
DIMM modules can be installed individually; there is no need to install them in pairs.
Yes, as long as all the modules in a memory bank have the same latency, different memory banks can have different latencies.
72-Pin SIMMs come in groups of Two in one bank.
Taken from User ID1085973130 "A bank schema is a diagram of rows and columns that shows the number of memory sockets in your system. This diagram is a theoretical bank layout and not an actual system board layout; it is designed to help you quickly determine configuration requirements when adding memory modules."
3 beeps - "beep, beep, beep [pause]"This beep pattern repeats until the system is powered off.This is a Memory errorReseat the memory.Make sure that the contacts on the memory and the socket are clean.Try removing one bank of memory modules at a time. (Some systems require a memory module in Bank 0.)Try using memory modules from the same manufacturer with the same part number and speed.Check for a faulty memory module by trying the memory in a known good system.
When installing SIMMs into a Pentium system board you must use SIMMs in pairs in order to fill a memory bank. The Pentium has a data path of 64 bits and as such requires 2 SIMMs each being a 32 bit module to function.
You can upgrade your Dell OptiPlex GX620 SFF upto a maximum of 4.0 GB, with maximum of 1GB per slot in 4 (2 banks of 2) memory slots. The Dell OptiPlex GX620 SFF takes the PC2-4200 DDR2 SDRAM DIMMs. Supports Dual Channel DDR. Memory Type.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 Dell OptiPlex GX620 SFF has 4 (2 banks of 2) 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.How do I install memory on my Dell OptiPlex GX620 SFF?Memory installation help guides can be found at the following link.Memory Installation Guide184-pin DDR DIMM Installation Guide168-pin SDRAM DIMM Installation Guide