For server and high end stations nimber of pins are 240. For Laptop and Cube PC it is 214. (Refer Simmtester.com-Publications)
240 pins
184 pins.
240
count them
2.66" 200-pin SO-DIMM contains DDR2 SDRAM. One notch is near the side of the module.
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 number of pins at the bottom of the stick. Some ddr's have 184 pins, some newer models have 240, starting with DDR2.
There are 240 pins on DDR2 and DDR3.
DDR SDRAM uses 184 pins.
Sdram has one notch. Depending upon the model of Sdram the number of pins it has can vary but a standard Sdram has 184 pins.
DDR2 SDRAM modules are available single sided and double sided.
Obviously the difference is speed.
686 pins
No.