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Two green DDR3 DIMMs with black chips, no heat spreaders

Computer Memory Solutions

Computer Memory Solutions CM5127210600ECCR2R4H 8GB (2x4GB) DDR3 1333 ECC Registered DIMM memory upgrade

SKU CH-SEE6-VYKKQ

ECC registered DDR3 kit for HP Z600 C2 workstations, 8 GB in two 4 GB modules at 1333 MHz

  • Total capacity8 GB (2 × 4 GB)
  • Rated speedDDR3 1333 (PC3 10600)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL9
  • Memory timings9-9-9
  • Rated voltage1.5 V
  • 8GB kit expands workstation memory to 24GB or 48GB with dual CPUs
  • ECC registered design protects data integrity for server workloads
  • 1333MHz DDR3 speed matches Z600 C2 triple-channel architecture
  • 2Rx4 organisation enables full-channel population across six slots
  • 5V operation meets original HP Workstation Z600 C2 specifications

Targeted upgrade for HP Z600 C2 workstations

This 8 GB kit contains two 4 GB DDR3-1333 registered ECC DIMMs built specifically for the HP Compaq Workstation Z600 C2 revision. The modules run at 1.5 V with CL9 9-9-9 timing and use a 240-pin form factor. They are validated for the Intel 5520 chipset C2 stepping and will not function on earlier board revisions.

Replaces non-ECC or unbuffered memory in supported

The jump is worth it when the workstation requires registered ECC modules for error correction and the board carries the C2 revision of the Intel 5520 chipset. Mixing registered and unbuffered ECC DIMMs is not supported, so all populated slots must use matching registered parts. A 64-bit operating system is required to address more than 4 GB of memory.

Sustained operation with triple-channel interleaving

For best throughput under continuous load, populate all three channels per CPU with identical 2Rx4 modules. The system supports up to 48 GB of registered DIMMs with two CPUs installed. If only 4 GB modules are fitted, the OS may report as little as 3.5 GB usable depending on configuration. Matched x4 or x8 DRAM versions must not be mixed within the same bank.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $22.99
Cheaper than about 89% of the 21,161 comparable items (median $397.99).
Total capacity 8 GB (2 × 4 GB)
Lower than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $2.87 per GB
Cheaper than about 90% of the 20,941 comparable items (median $8.19 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 nameComputer Memory Solutions
Model nameCM5127210600ECCR2R4H
Total capacity8 GB (2 × 4 GB)
Product type240-Pin DDR3 SDRAM
Performance
Rated speedDDR3 1333 (PC3 10600)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL9
Memory timings9-9-9
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.5 V
Compatibility
Compatible systemsHp/Compaq Workstation Z600 C2
In the box
Included items2 Memory RAM Sticks

Questions about this item

Does the 240-pin DDR3 1333 registered DIMM fit the Z600 C2 motherboard slots?

Yes, the 240-pin DDR3 1333 registered DIMMs are keyed for the Z600 C2 workstation slots and require the C2 revision of the Intel 5520 chipset.

What is the correct way to install the 2Rx4 modules for triple-channel performance?

Install modules across all three memory channels per CPU for triple-channel interleaving; do not mix x4 and x8 DRAM versions within the same bank.

How often should the 1.5V registered ECC memory be checked for errors?

ECC corrects single-bit errors automatically; run a memory diagnostic if the system logs corrected errors or shows instability.

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