RAM slot

 the slots in which RAM /memory is attach and there is a lock also on both end of slot. this slot depending on the motherboard there will usually be 2 to 4 memory slots (sometimes more on high end motherboards) and is what determine the type of RAM used with the computer. the most common types of RAM are SDRAM and DDR for desktop computer and SODIMM for laptop computers each having various types and speeds. 

there are three types of RAM slot

SIMM - single inline memory module

DIMM - double/dual inline memory module

RIMM - RAMDAM/RAMBUS inline memory module


SIMM - short for single in line memory module SIMM is a memory module developed by wang laboratories in  1983 the SIMM circuit board that holds six to nine memory chips per board the SIMM was used with computers using a 486 early intelpentium and compatible processors.

these were on 80486 to P1 to P2 M.B. we can plug in 2MB to 32MB capacity of RAM on this slot these slots have two sypes first slot has 30 pin and it has no any cut in it we attach NON EDO RAM in it. second slot has 72 pins and it has single cut after cendter we attach EDO RAM in it.


DIMM - these slots are being used in P2 to latest MB we can pluged in from 16 MB to 8 GB RAM there are different types of RAM slots for SD RAM DDR1 DDR2 and DDR3 RAM 


a..... in this slot we attach SD RAM. we can identify these slots by its two cut or black color. 

B... in this slot we attach DDR1 RAM it has a single cut in the after center. it Has multiple colors support MB 845,850,865 series 

C..... in this slot we attach DDR2 RAM it has a single cut in center. this slot also has multiple colors.

D... it has 240 pin and has also one cut.



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