We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Two green DDR3 ECC registered DIMM sticks, no heat spreaders

Computer Memory Solutions

Computer Memory Solutions 16GB (2x8GB) DDR3 1333MHz ECC Registered DIMM R420 EccR memory upgrade

SKU CH-JC4D-QNWPP

A 16GB dual-channel DDR3 kit with ECC registered DIMMs rated at 1333MHz and CL9 latency for Dell PowerEdge R420 servers

  • Capacity16GB (2 x 8GB)
  • Type240-Pin DDR3 SDRAM
  • SpeedDDR3 1333 (PC3 10600)
  • CAS LatencyCL9
  • Timing9-9-9
  • Voltage1.5V
  • ECC protection prevents data corruption in critical workloads
  • Registered design supports up to 384 GB total capacity
  • Dual-rank 2Rx4 organisation enables 12 DIMM slots per system
  • 1333 MHz CL9 timing matches Dell PowerEdge R420 specifications
  • 5 V DDR3 voltage ensures stable server operation

Dell PowerEdge R420 memory kit

This 16GB kit contains two 8GB DDR3 registered ECC DIMMs built for the Dell PowerEdge R420 server. Each module runs at 1333MHz with CL9 timing at 1.5V. The 2Rx4 configuration matches the system's registered memory requirement.

Thermals and power

Registered DDR3 modules at 1.5V draw modest power and produce little heat in normal server operation. No heat spreaders are fitted, so airflow through the chassis handles cooling. Noise remains unchanged because the memory adds no moving parts.

Registered ECC requirement

The PowerEdge R420 accepts either registered ECC or unbuffered ECC memory but forbids mixing the two types in the same system. This kit supplies registered ECC DIMMs, so it suits builds that already use registered modules or new deployments choosing that path. Buyers needing unbuffered ECC cannot use this kit.

Highlights

  • ECC protection prevents data corruption in critical workloads
  • Registered design supports up to 384 GB total capacity
  • Dual-rank 2Rx4 organisation enables 12 DIMM slots per system
  • 1333 MHz CL9 timing matches Dell PowerEdge R420 specifications
  • 5 V DDR3 voltage ensures stable server operation

Specifications

BrandComputer Memory Solutions
ModelCM10247210600ECCR2R4H
Capacity16GB (2 x 8GB)
Type240-Pin DDR3 SDRAM
SpeedDDR3 1333 (PC3 10600)
CAS LatencyCL9
Timing9-9-9
Voltage1.5V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
ChipsetMajor Brand Chipset
Heat SpreaderNo
Compatible SystemDell Poweredge R420
Package Content2 Memory RAM Sticks

Questions about this item

How do I install these 240-pin DDR3 modules in the R420 and what step is often missed?

Power down the server, open the chassis, align each 240-pin DDR3 stick with its slot notch, press firmly until the latches click, then verify in BIOS that all 16 GB are detected at 1333 MHz; the step often missed is populating the correct six sockets per processor so the registered ECC modules initialise in the proper bank order.

What maintenance or replacement will this 16 GB registered ECC kit need later?

The modules have no heat spreaders and carry a limited lifetime warranty from the manufacturer; under normal server airflow they require no periodic maintenance, and replacement is only necessary if a DIMM fails or the R420 is later upgraded to its 384 GB registered ECC maximum using all twelve sockets.

What limit appears first when the R420 runs sustained workloads with this memory?

The twelve-socket registered ECC ceiling of 384 GB is the first hard limit; with two 8 GB sticks installed you have 16 GB active, so sustained use will hit the socket count or the 1.5 V power budget long before the 1333 MHz speed becomes a bottleneck.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.