Memory Module Identification

144-pin SODIMM

This type of memory is used in the following Dell notebook computers:
Inspiron 2100, 2500, 2600, 3000, 3200, 3500, 3700, 3800, 4000, 4100, 5000, 5000e, 7000, 7500, 8000, 8100
Latitude C400, C500, C510, C600, C610, C800, C810, CP, CPi, CPt, CPx, CS, CSx, L400, LS, X200

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Note: When upgrading the Inspiron 3700, 3800, 4000, 7000, 7500, Latitude CPxH, CPxJ, C500 or C600, make sure that it is a low density module. You can check by counting the chips on the module. The 256 MB low density module will have 16 chips and the high density module will have 8 chips. The 128 MB low density module will have 8 chips and the high density module will have 4 chips. These computers are picky and DO NOT like the high density modules. It is because of the way the motherboard addresses the ram slots.

200-pin SODIMM

approx. 2.625" x 1"

This type of memory is used in the following Dell notebook computers:
Inspiron 1100, 2650, 2650C, 4150, 5100, 8200, 8500, 500m, 600m
Latitude C540, C640, C840, D500, D600, D800

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184-pin DIMM

approx. 5.375" x 1.25"

184-pin DIMMs are used to provide DDR SDRAM memory for desktop computers.

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168-pin DIMM

approx. 5.375" x 1.375"

168-pin DIMMs are commonly found in Pentium and Athlon systems.

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144-pin MicroDIMM

approx. 1.545" x 1"

144-pin MicroDIMMs are commonly found in sub-notebook computers.

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100-pin DIMM

approx. 3.5" x 1.25"

100-pin DIMMs are commonly found in printers.

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72-pin SODIMM

approx. 2.375" x 1"

72-pin SODIMMs are commonly found in laptop computers.

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72-pin SIMM

approx. 4.25" x 1"

72-pin SIMMs are commonly found in older desktop computers, such as the 486 and early Pentium models.

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30-pin SIMM

approx. 3.5" x 0.75"

30-pin SIMMs are commonly found in older desktop computers, such as the 386 and 486 models. All 30-pin SIMMs use FPM memory technology.

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66-pin AIMM

approx. 3.75" x 1.5"

An AGP inline memory module (AIMM, also known as a GPA or graphics performance accelerator) is a highly specialized memory module used only in systems which utilize Intel's 815E chipset and integrated graphics.

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The best place to buy memory is Crucial Technology. If you use their memory configurator, they will guarantee that the memory will work in your computer. If it doesn't, they will replace the memory or give you your money back.