No, they're not cross compatible. 184pin DDR is desktop memory, 200 pin ddr is a SO-DIMM, which is laptop memory.
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.
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.
All DDR chips have 184 pins while DDR2 have 240 pins
DDR SDRAM uses 184 pins.
184 normally..
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
Generally i believe they had 32 pins. I think they had some more recent revisions that had like 64 or something, but generally they were 32.
Types of DIMMs are DDR3 and DDR2 that have 240 pins, DDR DIMMs with 184 pins and SDRAM DIMMs with 168 pins.
6they guy who writ this is a . t . w . a . t ., the answer is 240!!!
DIMMs have 168, 184, or 240 pins on the edge connector of the board and can hold from 8MB to 2GB of RAM. Info from my A+ book.
For server and high end stations nimber of pins are 240. For Laptop and Cube PC it is 214. (Refer Simmtester.com-Publications)
The EDO RAM desktop memory modules have 72 pins and operate at 5V as standard