Module Size: 512MB
Package: Ballistix 240-pin DIMM
Feature: DDR2 PC2-4200
Configuration: 64Meg x 64
DIMM Type: UNBUFFERED
Error Checking: NON-ECC
Memory Timings: CL=3
The Ballistix™ line of high-performance memory modules features advanced speed grades, low latencies, and integrated aluminum heat spreaders. Ballistix modules are specficially built for performance enthusiasts who want to push the performance envelope without worrying about data loss or corruption, mysterious intermittent errors and display problems, or worse-the dreaded BSOD!
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. Each 240-pin DIMM provides a 64-bit data path (72-bit for ECC or registered modules), so they are installed singly in 64-bit systems. Most DDR2 chipsets are expected to support dual-channel memory, effectively providing a 128-bit data path.
240-pin DIMMs are available in DDR2 PC2-5300 (DDR2-667) SDRAM, DDR2 PC2-4200 (DDR2-533) SDRAM or DDR2 PC2-3200 (DDR2-400) SDRAM. 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. DDR2 modules use a 1.8V power supply, providing a big power saving over the 2.5V DDR modules.
The number of black components on a 240-pin DIMM may vary, but they always have 120 pins on the front and 120 pins on the back. 240-pin DIMMs are approximately 5.25" long and 1.18" high, though the heights may 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 slightly more toward the center of the module.