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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
Types of DIMMs are DDR3 and DDR2 that have 240 pins, DDR DIMMs with 184 pins and SDRAM DIMMs with 168 pins.
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.
400MHZ DDR PC3200 ------ 184 pin Dimm
184-pin DIMM
A DIMM is based on two different pin counts. SDRAM has 168 pins and is an earlier generation of RAM. DDR RAM has 184 pins. Both are considered DIMMS.
One can purchase a 1 GB 184 pin DDR memory unit on websites like Amazon, Mr Memory, eBay, Conrad, Hardware Q Mando, Crucial, Staples, Alie Express or New Egg.
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.
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.
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.
its a type of DDR RAM
i believe it refers to "cas latency"