A DIMM or bifold in-line anamnesis module, comprises a alternation of activating random-access anamnesis chip circuits. These modules are army on a printed ambit lath and advised for use in claimed computers, workstations and servers. DIMMs began to alter SIMMs (single in-line anamnesis modules) as the absolute blazon of anamnesis bore as Intel P5-based Pentium processors began to accretion bazaar share.
The capital aberration amid SIMMs and DIMMs is that DIMMs accept abstracted electrical contacts on anniversary ancillary of the module, while the contacts on SIMMs on both abandon are redundant. Another aberration is that accepted SIMMs accept a 32-bit abstracts path, while accepted DIMMs accept a 64-bit abstracts path. Since Intel's Pentium has (as do several added processors) a 64-bit bus width, it requires SIMMs installed in akin pairs in adjustment to complete the abstracts bus. The processor would again admission the two SIMMs simultaneously. DIMMs were alien to annihilate this practice.
The a lot of accepted types of DIMMs are:
72-pin SO-DIMM (not the aforementioned as a 72-pin SIMM), acclimated for FPM DRAM and EDO DRAM
100-pin DIMM, acclimated for printer SDRAM
144-pin SO-DIMM, acclimated for SDR SDRAM
168-pin DIMM, acclimated for SDR SDRAM (less frequently for FPM/EDO DRAM in workstations/servers)
172-pin MicroDIMM, acclimated for DDR SDRAM
184-pin DIMM, acclimated for DDR SDRAM
200-pin SO-DIMM, acclimated for DDR SDRAM and DDR2 SDRAM
204-pin SO-DIMM, acclimated for DDR3 SDRAM
214-pin MicroDIMM, acclimated for DDR2 SDRAM
240-pin DIMM, acclimated for DDR2 SDRAM, DDR3 SDRAM and FB-DIMM DRAM
244-pin MiniDIMM, acclimated for DDR2 SDRAM
The capital aberration amid SIMMs and DIMMs is that DIMMs accept abstracted electrical contacts on anniversary ancillary of the module, while the contacts on SIMMs on both abandon are redundant. Another aberration is that accepted SIMMs accept a 32-bit abstracts path, while accepted DIMMs accept a 64-bit abstracts path. Since Intel's Pentium has (as do several added processors) a 64-bit bus width, it requires SIMMs installed in akin pairs in adjustment to complete the abstracts bus. The processor would again admission the two SIMMs simultaneously. DIMMs were alien to annihilate this practice.
The a lot of accepted types of DIMMs are:
72-pin SO-DIMM (not the aforementioned as a 72-pin SIMM), acclimated for FPM DRAM and EDO DRAM
100-pin DIMM, acclimated for printer SDRAM
144-pin SO-DIMM, acclimated for SDR SDRAM
168-pin DIMM, acclimated for SDR SDRAM (less frequently for FPM/EDO DRAM in workstations/servers)
172-pin MicroDIMM, acclimated for DDR SDRAM
184-pin DIMM, acclimated for DDR SDRAM
200-pin SO-DIMM, acclimated for DDR SDRAM and DDR2 SDRAM
204-pin SO-DIMM, acclimated for DDR3 SDRAM
214-pin MicroDIMM, acclimated for DDR2 SDRAM
240-pin DIMM, acclimated for DDR2 SDRAM, DDR3 SDRAM and FB-DIMM DRAM
244-pin MiniDIMM, acclimated for DDR2 SDRAM
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