A duel inline memory module (DIMM) is an advanced version of randome access memory (RAM) that came after the singe inline memory module (SIMM) that runs on 168, 184, or 240 pins.
How many pins a DRAM module has depends on its type. A SDRAM, for instance, has 168 pins while DDR SDRAM has 184 pins.
SIMM memory modules have 168 pins. RIMMs or DIMMs have 184 pins. The difference in pins increases the throughput capability significantly.
DDR SDRAM has one notch and uses 184 pins.
The 184-pin DIMM configuration was used for DDR SDRAM. It is identified by sharing the larger contact sizes with the earlier SDRAM, but having only one cut out instead of two. Later DDR2 and DDR3 have much smaller contacts.
While 184-pin DIMMs and 168-pin DIMMs are approximately the same size, 184-pin DIMMs have only one notch within the row of pins
No, they're not cross compatible. 184pin DDR is desktop memory, 200 pin ddr is a SO-DIMM, which is laptop memory.
Sometimes its 184 Pins
168 pins are used on SDRAM DIMM. 184 pins are used on DDR DIMM. There are either 30 pins or 72 pins used on SIMM. 184 pins are used on RIMM.
: A SDRAM DIMM has 168 Pins : A DDR DIMM has 184 Pins : A SIMM has 30 or 72 Pins : A RIMM has 184 or 168
DDR2 has 240 pins, (DDR1 has 184).
All DDR chips have 184 pins while DDR2 have 240 pins
DIMMS are rated by speed and the amount of memory they hold. They have 168, 184, or 240 pins on the edge of the connector board and hold from 8 MB to 2 GB of RAM.
KVR800X18/256 is RDRAM. It's specs are: Memory Type: Rambus RDRAM Capacity: 256 MB Pins: 184 Bus Type: PC800 Error Correcting: Yes ECC Memory Speed: 40 ns Data Transfer rate: 800 Mhz Voltage: 2.5 volts.
DDR SDRAM uses 184 pins.
ddr1 184 pins ddr2 240 pins ddr3 240 pins there are 240 pins one side 120 pins and other side 120 pins so 120+120 = 240 pins in ddr2 ram. as well as ddr3 has 240 pins and ddr1 has 184 pins only . by Prem verma from www.prem-verma.blogspot.com
DIMM. Two types of DIMMs: a 168-pin SDRAM module (top) and a 184-pin DDR SDRAM module (bottom). Note that the SDRAM module has two notches (rectangular cuts or incisions) on the bottom edge, while the DDR1 SDRAM module has only one.
The same type of RAM with higher speed capabilities can be used on motherboard which supports that particular memory type, but it will work to the rated speed supported by the motherboard or at the speed of the slowest memory on the memory bus. - Neeraj Sharma PC5300 is more correctly "PC2-5300" and can work in a system that has "PC2-3200" RAM. As Neeraj stated, if mixed, they will operate at the speed of the slowest module. "PC-3200" RAM, however, is not compatible. PC-3200 is DDR SDRAM, having 184 pins. PC2-3200, and PC2-5300 are DDR2 SDRAM, having 240 pins. DDR and DDR2 modules are the same length, but the pins on DDR2 are smaller and the keying notch is in a slightly different position. -Jamal
Types of DIMMs are DDR3 and DDR2 that have 240 pins, DDR DIMMs with 184 pins and SDRAM DIMMs with 168 pins.