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Green rectangular 240-pin DDR3 DIMM with black chips and gold contacts

IBM Refurbished

IBM 46W0670 16GB DDR3 1866 ECC Registered Server RAM

SKU CH-XPX0-WB8RD MPN 46W0670

16 GB DDR3 1866 ECC registered server memory module with CL13 latency and 1.50 V operation

  • Total capacity16 GB
  • Rated speedDDR3 1866 (PC3 14900)
  • CAS latencyCL13
  • Rated voltage1.5 V
  • Buffer typeRegistered
  • Memory rank2Rx4
  • 16 GB capacity supports large server workloads
  • DDR3 1866 speed delivers PC3 14900 bandwidth
  • ECC registered design protects data integrity
  • CL13 latency at 1.50 V for stable timing
  • 240 pin 2Rx4 module fits compatible System X servers

Server memory for System x

This 16 GB DDR3 module runs at 1866 MT/s with CL13 latency and 1.50 V operation. ECC and registered buffering provide the error correction and signal integrity required by IBM System x servers. The 2Rx4 organisation fits two ranks across four-bit wide chips.

Upgrade path for registered ECC slots

The part suits administrators expanding or repairing System x platforms that accept 240-pin DDR3 registered DIMMs. Workstations or consumer boards limited to unbuffered memory cannot use this module. Buyers needing higher density per slot or different voltage should verify their platform documentation.

240-pin DDR3 registered ECC form factor

The 240-pin DDR3 registered ECC form factor is the single specification that decides compatibility. Only systems designed for this exact module type will recognise and initialise the memory correctly.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $60.99
Cheaper than about 81% of the 6,523 comparable items (median $188.99).
Total capacity 16 GB
Lower than about 60% of the 6,064 comparable items (median 32 GB).
Price per GB $3.81 per GB
Cheaper than about 83% of the 6,064 comparable items (median $7.25 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameIBM
Model name46W0670
Total capacity16 GB
Product type240-Pin DDR3 SDRAM
Performance
Rated speedDDR3 1866 (PC3 14900)
Memory
CAS latencyCL13
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Power
Rated voltage1.5 V
Size & build
Shipping weight0.23 kg
Package size178 × 51 × 13 mm

Questions about this item

Will this 240-pin DDR3 module fit my System X server memory slots?

The module uses the standard 240-pin DDR3 form factor designed for System X servers; verify your motherboard supports 1866 MHz registered ECC memory before installing.

What is the correct way to seat this registered ECC stick so the server recognises the full 16 GB?

Align the notch with the slot key, press firmly until both retaining clips click, then confirm in BIOS that the channel shows 16 GB at 1866 MHz with ECC active.

How do I know when this 2Rx4 registered kit should be replaced in a production server?

Monitor system logs for corrected ECC errors; a rising count or uncorrectable errors on this 16 GB module indicates it is time to swap the stick.

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