Type of RAM Module
- 240-pin DDR2 DIMM
- 184-pin RIMM
- 184-pin DDR RIMM
- 168-pin DIMM
- 72-pin SIMM
- 30-pin SIMM
- Single inline memory module (SIMM) speed are 60, 70, and 80 ns. SIMM can hold 8,16,32,64 MB on a single module
- Dual inline memory module (DIMM) can hold up to 2GB or RAM on a single module
- RIMM uses with RDRAM chip. RDRAM can travel on a 16- or 32-bit data path.
Type of Memory (SRAM and DRAM)
(DRAM) (SRAM)
DRAM needs constant refreshing
Slower than SRAM because of refreshing time Memory Addresses Assigned Physically housed on DIMMs, SIMMs, and RIMMs |
SRAM does not need refreshing
Faster but more expensive Memory Addresses not Assigned Physically housed on the motherboard on COAST modules or single chips, or included inside the processor case |
Technologies include:
|
Technologies include:
|
Cache Memory Location
L1 Cache
L2 Cache L2 Cache L3 Cache L3 Cache |
On the CPU die. All CPUs today have L1 cache
Inside the CPU housing. The first CPU to contain L2 was the Intel Pentium Pro. On the motherboard of older systems. Inside the CPU housing, farther away from the CPU than the L2 cache. The Itanium housing contains L3 cache On the motherboard when there is L2 cache i the CPU housing. L3 is used with some AMD Processors. |
Source: A+ guide to managing and maintaining your pc by Jean Andrews