Crucial - DDR2 - 8 GB : 2 x 4 GB - DIMM 240-pin - 667 MHz / PC2-5300 - CL5 - 1.8 V - registered - ECC
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 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. 240-pin DIMMs are used to provide DDR2 SDRAM memory for desktop computers. DDR2 is a leading-edge generation of memory with an improved architecture that allows it to transmit data very fast. Each 240-pin DIMM provides a 64-bit data path. To use DDR2 memory your system motherboard must have 240-pin DIMM slots and a DDR2-enabled chipset. A DDR2 SDRAM DIMM will not fit into a standard SDRAM DIMM socket or a DDR DIMM socket. The number of black components on a 240-pin DIMM can vary but it always has 120 pins on the front and 120 pins on the back for a total of 240. 240-pin DIMMs are approximately 5.25 inches long and 1.18 inches high though the heights can vary. While 240-pin DDR2 DIMMs 184-pin DDR DIMMs and 168-pin DIMMs are approximately the same size 240-pin DIMMs and 184-pin DIMMs have only one notch within the row of pins. The notch in a 240-pin DDR2 DIMM is closer toward the center of the module. Specifications General Capacity: 8 GB : 2 x 4 GB Upgrade Type: Generic OEM Manufacturer Equivalent Part Number: DELL A2257195 Sun X8098A Sun X6322A Sun X8124A-Z Sun X4227A-Z HP 408854-B21 Sun X5095A-Z Sun X5289A-Z HP AD345A Sun X4063A-Z Sun X4293A DELL A2257191 DELL A2257196 Kingston KTH-BL860K2/8G Kingston KTS4225K2/8G Kingston KTS5093K2/8G Kingston KTS5287K2/8G Kingston KTS8122K2/8G Kingston KVR400D2D4R3K2/8G Kingston KVR533D2D4R4K2/8G Memory Type: DRAM Technology: DDR2 SDRAM Form Factor: DIMM 240-pin Module Height (inch): 1.18 Speed: 667 MHz ( PC2-5300 ) Latency Timings: CL5 Data Integrity Check: ECC Features: Registered Module Configuration: 512 x 72 Voltage: 1.8 V
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