Types of RAM Modules: DIMM, DDR, RIMM, FB-DIMM, GDDR, SO-DIMM
Classified in Computers
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Memory Modules
Small printed circuit boards built on different memory chips:
- DIMM (Dual In-Line Memory Module): Similar to the SIMM, physically larger, and have 168 contacts. They are distinguished by having a notch on both sides and two more in the row of contacts. The mounting of the sockets is different than that of the SIMM. DIMMs are found in 32, 64, 128, 256, 512 MB, and 1, 2 GB capacities.
- DIMM DDR: Has gradually replaced the standard DIMMs. It has a total of 184 pins instead of the 168-pin DIMM of SDRAM. Physically, they resemble the above but have one notch in the row of contacts.
- DIMM DDR2: Has 240 pins and a notch in a different position than DDR DIMMs.
- DIMM DDR3: Also has 240 pins but is neither physically nor electrically compatible