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Four green 240-pin DDR3L ECC registered DIMMs in static bags

OWC

OWC 128GB (4x32GB) DDR3L 1600 ECC RDIMM memory upgrade

SKU CH-5QST-9RRNE

A 128 GB DDR3L 1600 ECC registered kit of four 32 GB modules for compatible Supermicro SuperServer systems

  • Capacity128GB (4 x 32GB)
  • Type240-Pin DDR3L ECC RDIMM
  • SpeedDDR3L 1600 (PC3L 12800)
  • CAS LatencyCL11
  • Voltage1.35V
  • ECCYes

Capacity 128GB (4 x 32GB)

Struck-through versions exist but are not stocked here.

  • ECC registered design protects data integrity in servers
  • 128 GB total capacity across four 32 GB modules
  • DDR3L 1600 speed with CL11 latency for responsive performance
  • Low 1.35 V operation reduces power draw and heat
  • Validated for Supermicro SuperServer 4047R, 4048B, 5017GR, 5017R and 5027R series

Server Memory Upgrade Kit

This 128GB kit contains four 32GB DDR3L 1600 registered ECC modules built for Supermicro SuperServer 4047R, 4048B, 5017GR, 5017R and 5027R systems. Each stick runs at 1.35V with CL11 latency and a 4Rx4 organisation. The 240-pin RDIMM form factor fits the designated server slots directly.

Workstation and Server Builders

The modules suit administrators upgrading or repairing the listed Supermicro platforms where registered ECC memory is required. They will not work in standard desktop motherboards that accept only unbuffered non-ECC DIMMs. Buyers needing unbuffered memory or a different DDR generation should look elsewhere.

Registered ECC DDR3L Specification

Registered ECC operation is the single specification that decides compatibility with the target Supermicro servers. The kit delivers 128GB total capacity across four 32GB DDR3L 1600 modules at 1.35V. This memory type cannot be mixed with unbuffered DIMMs in the same system.

Highlights

  • ECC registered design protects data integrity in servers
  • 128 GB total capacity across four 32 GB modules
  • DDR3L 1600 speed with CL11 latency for responsive performance
  • Low 1.35 V operation reduces power draw and heat
  • Validated for Supermicro SuperServer 4047R, 4048B, 5017GR, 5017R and 5027R series

Specifications

BrandOWC
Part Number1R6T34R4128S
Capacity128GB (4 x 32GB)
Type240-Pin DDR3L ECC RDIMM
SpeedDDR3L 1600 (PC3L 12800)
CAS LatencyCL11
Voltage1.35V
ECCYes
Buffered/RegisteredRegistered
Rank4Rx4
Heat SpreaderNo
Compatible SystemSupermicro SuperServer 4047R Series
Supermicro SuperServer 4048B Series
Supermicro SuperServer 5017GR Series
Supermicro SuperServer 5017R Series
Supermicro SuperServer 5027R Series

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

Will the 240-pin DDR3L RDIMM modules fit the memory slots in a Supermicro SuperServer 4047R?

Yes, the kit is validated for Supermicro SuperServer 4047R, 4048B, 5017GR, 5017R and 5027R series, each of which uses standard 240-pin DDR3L RDIMM sockets.

What is the correct installation sequence for the four 32 GB modules, and which step is most often missed?

Populate all four channels identically — one module per channel — and ensure each module clicks fully into the 240-pin slot; the step most often missed is verifying that both ejector tabs lock, confirming the registered DIMM is seated.

When should the 128 GB kit be replaced or serviced in a 24/7 server?

ECC registered DDR3L modules have no scheduled replacement interval; monitor corrected-error counts in the BMC and replace a module only if uncorrectable errors appear or the server fails POST.

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