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Samsung 128MB Rambus 2x64MB PC600 600MHz ECC 184-Pin RDRAM - KMMR18R84AC1-RG6
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Samsung 128MB Rambus 2x64MB PC600 600MHz ECC 184-Pin RDRAM - KMMR18R84AC1-RG6
Price: US $14.99
🧠 Samsung KMMR18R84AC1-RG6 – Technical Specifications📦 Summary

  • Manufacturer: Samsung

  • Part Number: KMMR18R84AC1-RG6

  • IBM FRU Number: 38L3094

  • Kit: 2 Ă— 64MB modules (128MB total)

  • Memory Type: RDRAM (Rambus DRAM)

  • Form Factor: 184-pin RIMM

  • Module Speed: PC600-53

  • Capacity per Module: 64MB

  • Total Kit Capacity: 128MB

  • Data Bus Width: 16-bit

  • Chip Count: 8 chips per module

  • ECC Support: âś… Yes (Error-Correcting Code)

  • Buffered: Yes (as required for ECC RDRAM)

  • Voltage: 2.5V

  • Latency: 53 ns

  • Heat Spreader: Yes (mandatory for all RDRAM)

🔧 Technical Details Per ModuleAttributeValueModule Capacity64MBKit Capacity128MB (2 x 64MB)Module Organization8 devices x 16-bit eachTypeECC, BufferedRDRAM Clock Rate600 MHz effective (300 MHz base)Data Transfer Rate1.6 GB/s per module (PC600 spec)CAS Latency~53 nsVoltage2.5VPins184-pin RIMMCompatibility TypeECC Workstation / Server✅ Compatible OEM & Workstation Systems

  • IBM (with ECC RDRAM support — FRU 33L3094):

    • IntelliStation M Pro series (e.g., 6849/6850)

    • IntelliStation Z Pro

    • NetVista 2800 legacy models

  • HP / Compaq:

    • HP Kayak XA/XU/XM RDRAM workstation builds

    • HP Professional Workstation AP550 (ECC RDRAM configs)

  • Dell:

    • Precision Workstation 220 & 420 (if fitted with ECC PC600 RDRAM option)

✅ Compatible Custom D820GBIntel 820ECC RDRAM supportedIntelVC820Intel 820Slot-1 ECC workstation motherboardSupermicroP3TDE6 / P3TDEIntel 840Dual-CPU workstation/server boardsASUSCUR-DLSIntel 840ECC RDRAM support for dual Slot-1 systemsTyanThunder 2500 (S1867)Intel 840ECC & SMP capable❌ Not Compatible With

  • Consumer desktops without ECC support (e.g., IBM NetVista non-ECC, Dell Dimension)

  • DDR/SDRAM-based systems (Intel 845, 850, etc.)

  • PC800 or higher RDRAM boards (require PC800+ modules)

  • ECC‑less motherboards — system BIOS must support and enable ECC

🧩 Installation & Operational Notes

  • Install in matched pairs only

  • Use C‑RIMMs for any unused RIMM slots

  • Ensure system BIOS has ECC mode enabled

  • Adequate cooling is essential — modules contain heat spreaders




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