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Two green DDR3 ECC registered RDIMM sticks, 240-pin, no heat spreaders

OWC

OWC 32GB (2x16GB) DDR3 1333 ECC Registered RDIMM for Dell Precision R5500

SKU CH-4MG3-XD0CJ

32GB DDR3 ECC registered RDIMM kit for Dell Precision R5500 workstations

  • Capacity32GB (2 x 16GB)
  • Type240-Pin DDR3 ECC RDIMM
  • SpeedDDR3 1333 (PC3 10600)
  • CAS LatencyCL9
  • Voltage1.5V
  • ECCYes

Capacity 32GB (2 x 16GB)

  • ECC registered design protects data integrity in workstations and servers
  • 32GB kit (2 × 16GB) expands memory capacity for demanding workloads
  • DDR3 1333 PC3-10600 CL9 matches Dell Precision R5500 specifications
  • 5V JEDEC-standard voltage ensures stable, warranty-safe operation
  • 240-pin registered RDIMM form factor fits compatible server and workstation slots

Dell Precision R5500 memory upgrade

This 32 GB kit supplies two 16 GB DDR3 ECC registered DIMMs built for the Dell Precision R5500 workstation. Each module runs at 1333 MHz with CL9 latency at 1.5 V. The 240-pin form factor and 2Rx4 organisation match the platform's registered memory requirement.

Workstations and servers needing ECC registered RAM

The modules are designed for registered ECC environments such as workstations, servers, NAS systems and routers. They will not work in standard desktop computers that require unbuffered memory, and they cannot be mixed with unbuffered DIMMs. Buyers who need non-ECC or unbuffered memory should look elsewhere.

Sustained operation in registered ECC mode

Registered buffering and ECC correction maintain data integrity during continuous workloads. JEDEC-standard 1.5 V operation keeps power draw stable over long periods. The kit is validated for the Precision R5500, so signal timing remains consistent under extended use.

Highlights

  • ECC registered design protects data integrity in workstations and servers
  • 32GB kit (2 × 16GB) expands memory capacity for demanding workloads
  • DDR3 1333 PC3-10600 CL9 matches Dell Precision R5500 specifications
  • 5V JEDEC-standard voltage ensures stable, warranty-safe operation
  • 240-pin registered RDIMM form factor fits compatible server and workstation slots

Specifications

BrandOWC
Part Number1R3D32R4032P
Capacity32GB (2 x 16GB)
Type240-Pin DDR3 ECC RDIMM
SpeedDDR3 1333 (PC3 10600)
CAS LatencyCL9
Voltage1.5V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Heat SpreaderNo
Compatible SystemDell Precision R5500

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Questions about this item

Does my Dell Precision R5500 need to support ECC Registered DDR3 1333 memory for this kit to work?

Yes, the Precision R5500 must accept DDR3 1333 PC3-10600 CL9 2Rx4 1.5V ECC Registered RDIMM modules; this kit is validated for that exact configuration.

Can I keep my existing unbuffered DDR3 modules installed alongside these two 16GB ECC Registered RDIMMs?

No, the manufacturer highlights state that ECC Registered memory cannot be mixed with unbuffered memory; all slots must use registered modules.

How can I confirm the kit is running at the rated 1333MHz CL9 after installation?

Check the BIOS or a system-information utility — it should report each module as 16GB DDR3 1333 PC3-10600 CL9 2Rx4 1.5V ECC Registered.

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