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Four green 288-pin DDR4 ECC LRDIMM modules with black chips

OWC

OWC 2L9D44R4512S 512GB (4x128GB) DDR4 2933 PC4-23400 CL21 4Rx4 288-pin 1.2V ECC LRDIMM memory upgrade

SKU CH-MHJD-BEN8H

512GB quad-channel DDR4 ECC LRDIMM kit at 2933MHz CL21 for Cisco HX and C480 M5 servers

  • Capacity512GB (4 x 128GB)
  • Type288-Pin DDR4 ECC LRDIMM
  • SpeedDDR4 2933 (PC4 23400)
  • CAS LatencyCL21
  • Voltage1.2V
  • ECCYes

Capacity 512GB (4 x 128GB)

  • 512GB kit expands server capacity with four 128GB modules
  • ECC load-reduced design protects data integrity in critical workloads
  • DDR4 2933 CL21 speed delivers responsive performance for virtualization
  • 2V operation reduces power draw and heat in dense racks
  • Validated for Cisco HX220c M5, HX240c M5, HXAF220c M5, HX-E-220M5SX, C480 ML M5

Server memory kit

This 512GB kit contains four 128GB DDR4 2933 ECC load-reduced DIMMs built for Cisco HX and C480 M5 servers. It targets administrators who need maximum registered capacity in qualified platforms.

288-pin LRDIMM format

Modules use the 288-pin load-reduced interface at 1.2V and cannot be mixed with unbuffered or standard registered memory. The design fits the listed Cisco HX220c M5, HX240c M5, HXAF220c M5, HX-E-220M5SX and C480 ML M5 systems.

Thermals and power

Operating at 1.2V with CL21 timing keeps power draw low in dense configurations. No heat spreaders are fitted, so chassis airflow handles cooling in normal server workloads.

Points forts

  • 512GB kit expands server capacity with four 128GB modules
  • ECC load-reduced design protects data integrity in critical workloads
  • DDR4 2933 CL21 speed delivers responsive performance for virtualization
  • 2V operation reduces power draw and heat in dense racks
  • Validated for Cisco HX220c M5, HX240c M5, HXAF220c M5, HX-E-220M5SX, C480 ML M5

Caractéristiques

BrandOWC
Part Number2L9D44R4512S
Capacity512GB (4 x 128GB)
Type288-Pin DDR4 ECC LRDIMM
SpeedDDR4 2933 (PC4 23400)
CAS LatencyCL21
Voltage1.2V
ECCYes
Buffered/RegisteredLoad Reduced
Rank4Rx4
Heat SpreaderNo
Compatible SystemCisco HX220c M5
Cisco HX240c M5
Cisco HXAF220c M5
Cisco HX-E-220M5SX
Cisco C480 ML M5

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Questions sur cet article

What speed does the DDR4 2933 PC4-23400 interface actually run at in a Cisco HX220c M5?

The kit is rated at 2933 MT/s (PC4-23400) and will clock down to 2666, 2400 or 2133 MT/s if the platform requires a lower speed.

What physical slot and clearance do the 288-pin LRDIMMs need in a Cisco C480 ML M5?

Each module uses a standard 288-pin DDR4 DIMM slot; the sticks have no heat spreader so they fit in tight server bays without extra height clearance.

How are the four 128 GB LRDIMMs installed in a Cisco HX240c M5 and what step is often missed?

Populate all four modules in the correct channel order for the CPU socket, then enable ECC Load Reduced mode in BIOS so the system recognises the 4Rx4 ranks.

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