184 pin DDR
| Model | Module | Memex Part Number | Price | Buy |
|---|---|---|---|---|
| PC2100 ECC / REG / DDR266 | 512MB MODULE | MEWEB21EDDR512 | $90 | |
| PC2100 ECC / REG / DDR266 | 1GB MODULE | MEWEB21EDDR1 | $150 | |
| PC2100 ECC / REG / DDR266 | 2GB MODULE | MEWEB21EDDR2 | $220 | |
| PC2700 NON-ECC / UB / DDR333 | 512MB MODULE | MEWEB27DDR512 | $54 | |
| PC2700 NON-ECC / UB / DDR333 | 1GB MODULE | MEWEB27DDR1 | $72 | |
| PC2700 ECC / REG / DDR333 | 512MB MODULE | MEWEB27EDDR512 | $80 | |
| PC2700 ECC / REG / DDR333 | 1GB MODULE | MEWEB27EDDR1 | $140 | |
| PC2700 ECC / REG / DDR333 | 2GB MODULE | MEWEB27EDDR2 | $190 | |
| PC3200 NON-ECC / UB / DDR400 | 512MB MODULE | MEWEB32DDR512 | $54 | |
| PC3200 NON-ECC / UB / DDR400 | 1GB MODULE | MEWEB32DDR1 | $72 | |
| PC3200 ECC / REG / DDR400 | 512MB MODULE | MEWEB32ERDDR512 | $80 | |
| PC3200 ECC / REG / DDR400 | 1GB MODULE | MEWEB32ERDDR1 | $130 | |
| PC3200 ECC / REG / DDR400 | 2GB MODULE | MEWEB32ERDDR2 | $180 | |
| PC3200 ECC / DDR400 | 1GB MODULE | MEWEB32EDDR1 | $90 | |
| PC3200 ECC / DDR400 | 2GB MODULE | MEWEB32EDDR2 | $190 | |
| PC4000 NON-ECC / DDR500 | 1GB MODULE | MEWEB40DDR1 | $90 | |
| PC4000 ECC / REG / DDR500 | 1GB MODULE | MEWEB40EDDR1 | $140 |
A dual inline memory module (DIMM) consists of a
number of memory components (usually black) that are attached to a printed
circuit board (usually green). The gold or tin pins on the bottom of
the DIMM
provide a connection between the module and a socket on a larger
printed circuit board. The pins on the front and back of a DIMM are
not connected to each other.
184-pin DIMMs are used to provide DDR SDRAM memory for desktop computers. Each 184-pin DIMM provides a 64-bit data path, so they are installed singly in 64-bit systems. 184-pin DIMMs are available in PC2100 DDR SDRAM or PC2700 DDR SDRAM. To use DDR memory, your system motherboard must have 184-pin DIMM slots and a DDR-enabled chipset. A DDR SDRAM DIMM will not fit into a standard SDRAM DIMM socket.
The number of black components on a 184-pin DIMM may vary, but they always have 92 pins on the front and 92 pins on the back for a total of 184. 184-pin DIMMs are approximately 5.375" long and 1.25" high, though the heights may vary. 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.
DDR SDRAM, is a next-generation SDRAM technology. It allows the memory chip to perform transactions on both the rising and falling edges of the clock cycle. For example, with DDR SDRAM, a 100 or 133MHz memory bus clock rate yields an effective data rate of 200MHz or 266MHz. Systems using DDR SDRAM began shipping at the end of 2000.
