Samsung MR16R082GBN1-CK8 256MB PC800-45 RDRAM RIMM Rambus Memory Module

Samsung MR16R082GBN1-CK8 256MB PC800-45 RDRAM RIMM Rambus Memory Module

The Samsung MR16R082GBN1-CK8 is a 256MB PC800-45 RDRAM RIMM (Rambus Inline Memory Module) designed for Intel platforms that require Direct Rambus DRAM. Running at 800MHz with a 45ns latency rating and a 16-bit bus width, this module carries the internal Samsung configuration code CX128X16RIMM8 and the board part number MOD001754-00. The metal heat spreader is a standard feature of all RDRAM RIMMs, required because Rambus memory runs significantly hotter than contemporary SDRAM or DDR modules.

Specifications & What's Included

• Manufacturer: Samsung
• Part Number / MPN: MR16R082GBN1-CK8
• Secondary Part Number: MOD001754-00
• Module Configuration Code: CX128X16RIMM8
• Capacity: 256MB
• Memory Technology: RDRAM (Rambus Direct DRAM)
• Speed Rating: PC800-45 (800MHz, 45ns)
• Form Factor: RIMM (184-pin)
• Bus Width: 16-bit (256MB/16)
• ECC: No
• Heat Spreader: Yes — metal spreader factory-installed on both sides
• Country of Manufacture: South Korea (Korea 0119 date code)
• Quantity: 1 module
• Accessories included: None

Applications

Rambus DRAM was Intel's designated high-bandwidth memory technology for its late-1990s and early-2000s Pentium III and early Pentium 4 platforms. The PC800-45 RIMM standard was specifically required by Intel's 820, 820E, 850, and 850E chipsets, found on motherboards marketed roughly from 1999 through 2003. Unlike SDRAM or DDR, RDRAM used a narrow high-frequency serial channel rather than a wide parallel bus, which gave it strong peak bandwidth but also generated considerably more heat — hence the mandatory heat spreader on every RIMM slot, including the unused slots, which had to be filled with C-RIMM (Continuity RIMM) terminator modules to complete the channel. RDRAM systems were used in high-end workstations, enthusiast desktops, and some Intel-based servers of the era. Today this module is sought by collectors and technicians maintaining legacy Pentium 4 and Pentium III systems based on the Intel 820 or 850 chipset families. Note that RDRAM RIMMs are not interchangeable with SDRAM DIMMs or DDR DIMMs — the motherboard must specifically support the RDRAM/RIMM standard.