The individual gold or lead connectors (pins) on SIMMs, although they are on both sides of the chip, are connected to the same memory chip, while on a DIMM, the connections on each side of the module connect to different chips. This allows for a wider data path, as more modules can be accessed at once. DIMM pins are arranged in a zigzag design to allow PCB tracks to pass between them.
The 8-byte DIMM format with dual-sided contacts can accommodate 4- and 16-megabit dynamic RAM chips, and is predicted to handle 64- and 256-Mbit devices. The 8-byte DIMM will hold up to 32 megabytes of memory using 16-Mbit DRAMs, but with the 256-Mbit future-generation DRAM, it will be able to hold a 64-Mx64 configuration. Another variation, the 72-pin SO-DIMM, is designed to connect directly to 32 bit data buses, and is intended for use in memory-expansion applications in notebook computers.
A Dual in-line memory module (DIMM), as opposed to SIMMs (used by the majority of the PC industry) allows for a 128-bit data path by interleaving memory on alternating memory access cycles. SIMMs on the other hand, have a 64-bit data path. Suppliers are unanimous in their belief that the DIMM will eventually replace the SIMM as the market's preferred memory module.
1GB Memory Compatible with Gateway E 2100 2100 DDR DIMM Upgrade RAM 184pin New, 1GB Memory Compatible with Gateway E E-4000 E2000 E-Special DDR DIMM Upgrade RAM, 2GB Memory Compatible with Asus M3 M3N-H/HDMI M3N-HD/HDMI DDR2 DIMM RAM 240pin, 2GB - Two Samsung 1GB Memory RAM 2Rx8 PC2-5300S-555-12-E3 Sticks DDR2 SO-DIMM, Hynix 2GB DDR-3 Laptop Memory/PC3-10600S/RAM 1333MHz/Mobile/SO-DIMM, 1GB DDR2 SO-DIMM for Asus F3U AP059C AP069C AP070C AP072C RAM Memory 200pin New, 1GB Memory Compatible with Asus F3U AP041 AP052C AP058C AP059 DDR2 SO-DIMM RAM, 1GB RAM for Asus F3U AP019C AP023C AP027C AP028C DDR2 SO-DIMM Upgrade Memory, 1GB RAM for Asus F3U AP005C AP013C AP014C AP015E Upgrade DDR2 SO-DIMM Memory, 512MB Memory for Compaq Thin Client t5700 200pin RAM DDR SO-DIMM New, 1GB RAM Compatible with Gateway MX7120 mx7118 MX7533 Upgrade DDR SO-DIMM Memory, 2GB RAM for Gateway MX MX6930 DDR2 SO-DIMM Upgrade Memory 200pin New, 2GB RAM for Gateway MX 8734 DDR2 SO-DIMM Memory 200pin New, 512MB DDR SO-DIMM Compatible with Gateway MX MX6131 RAM Memory 200pin New, 2x 512MB DDR2 PC2 4200 533MHz DIMM Desktop PC Ram Memory 1GB Total, 1GB Memory for Gateway MX 6431 6439 6453 6454 DDR2 SO-DIMM RAM 200pin New, 1GB Memory for Asus A3 A3L 5032H 5047P 5073P Upgrade DDR SO-DIMM RAM 200pin New, 1GB RAM for Asus A3 A3N A3N15-RW A3N16E-RW 200pin Memory DDR SO-DIMM New, Server RAM 4GB 2x 2GB PC2-3200R 2Rx4 ECC REG DDR2 400MHz 240-pin DIMM Memory LOT, 1GB Memory Compatible with Sony TX650P/B TX770P/B TX670P 200pin RAM DDR2 SO-DIMM, 1GB Memory RAM Compatible with IBM ThinkPad G G41 28818MU 200pin DDR SO-DIMM New, 2GB 200pin Compatible with Dell XPS m1330 M1530 Upgrade Memory RAM DDR2 SO-DIMM, 4GB Memory Compatible with Panasonic Toughbook 31 CF-31 204pin RAM DDR3 SO-DIMM, 1GB RAM for Asus F3Jc AP103 AP103M AP105P-A AP111M 200pin Memory DDR2 SO-DIMM, 1GB 200pin for Asus F3Jc AP015P AP016H AP019 AP019H RAM Memory DDR2 SO-DIMM New, 2GB Memory for Lenovo G455 0708 DDR2 SO-DIMM Upgrade RAM 200pin New, 512MB Memory for Fujitsu LifeBook FMV FMV-7180MR3 SDRAM SO-DIMM RAM 144pin New, 1GB Memory Compatible with Gateway M 685Eb DDR2 SO-DIMM Upgrade RAM 200pin New, 1GB RAM Compatible with Gateway M 680XL 200pin Upgrade Memory DDR2 SO-DIMM New, 512MB Memory Compatible with Gateway M 350cs DDR SO-DIMM Upgrade RAM 200pin New, 256MB 144pin Compatible with Fujitsu Stylistic 3400C LT RAM Memory SDRAM SO-DIMM, 1GB RAM Compatible with Sony FE780G FE680G FE690G 200pin Memory DDR2 SO-DIMM New, 1GB Memory RAM Compatible with eMachines N N10 200pin DDR2 SO-DIMM New, 4GB RAM Compatible with Compaq 6000 6730b 200pin Memory DDR2 SO-DIMM New, 2GB RAM for Toshiba Tecra S5-136 S5-137 S5-13D S5-13N 200pin Memory DDR2 SO-DIMM, 512MB RAM for Toshiba 9000 TE2000 144pin Memory SDRAM SO-DIMM New, 512MB RAM Compatible with Sony VAIO PCG-GRV GRV500 200pin Memory DDR SO-DIMM New, 256MB RAM for Fujitsu C-6555 C4235 Upgrade SDRAM SO-DIMM Memory 144pin New, 1GB DDR2 SO-DIMM for Apple M9969LL/A M9970LL/A RAM Memory 200pin New, 2GB DDR2 SO-DIMM Compatible with Gateway MC 7833U RAM Memory 200pin New, 1GB Memory for eMachines M6400 Series 200pin RAM DDR SO-DIMM New, 4GB RAM for Lenovo ThinkPad T T400 7417TPU 741722U 204pin Memory DDR3 SO-DIMM, 2GB Memory Upgrade RAM for Lenovo ThinkPad T T61 DDR2 SO-DIMM 200pin New, 8GB Memory for HP Pavilion dv6-6117dx DDR3 SO-DIMM Upgrade RAM 204pin New, 4GB Memory for Compaq Presario CQ CQ57-229WM Upgrade DDR3 SO-DIMM RAM 204pin New, Kingston 2G Memory RAM PC2-5300 667MHz DDR2 FB-DIMM ECC KVR667D2D4F5/2G, 256MB 144pin for Compaq Evo Notebook N400 N400c RAM Memory SDRAM SO-DIMM New, 1GB RAM Compatible with Fujitsu FJNB181 S6230 S7020 Upgrade DDR SO-DIMM Memory, 4GB Memory RAM for Asus B53F SO043X SO046X 204pin DDR3 SO-DIMM New, 1GB Memory RAM Compatible with Acer Extensa 6601WLMi 6702 200pin DDR2 SO-DIMM,
