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Green printed circuit board with gold edge connectors and black memory chips on both sides

OWC

OWC 8GB DDR3L 1600 CL11 1Rx4 240-pin 1.35V ECC Registered RDIMM

SKU CH-NY13-1CAXA

8GB DDR3L ECC registered DIMM at 1600 MHz for HP ProLiant Gen8 servers

  • Total capacity8 GB
  • Rated speedDDR3L 1600 (PC3L 12800)
  • CAS latencyCL11
  • Rated voltage1.35 V
  • Buffer typeRegistered
  • Memory rank1Rx4

Capacity 8GB

  • ECC registered design protects data integrity in server workloads
  • DDR3L 1600 CL11 timing delivers reliable throughput for HP Gen8 platforms
  • 35 V operation reduces power draw compared to standard DDR3
  • Single 8 GB 1Rx4 module simplifies capacity scaling in 240-pin slots
  • Replaces HP part numbers 731765B21 and 735302001 for direct compatibility

HP ProLiant Gen8 Server Upgrade

This 8GB DDR3L ECC Registered RDIMM is built for HP ProLiant DL360e Gen8 DL360p Gen8 DL380p Gen8 DL385p Gen8 and DL580 Gen8 servers. It replaces HP part numbers 731765B21 and 735302001. It will not work in standard desktop computers and cannot be mixed with unbuffered memory. Buyers who need unbuffered DIMMs or desktop SO-DIMMs should look elsewhere.

Thermals and Power Profile

The module runs at 1.35V DDR3L voltage which reduces power draw compared to standard 1.5V DDR3. No heat spreader is fitted so airflow across the PCB handles cooling. Registered buffering adds minimal latency at CL11 while maintaining signal integrity under sustained server workloads.

What the Module Changes

Installing this single 8GB stick increases total memory capacity for virtualization or database tasks. ECC protection corrects single-bit errors automatically improving data integrity. Registered signalling allows larger memory populations per channel than unbuffered alternatives. No software or drivers are required.

How it compares

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

Price $23.99
Cheaper than about 88% of the 21,161 comparable items (median $397.99).
Total capacity 8 GB
Lower than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $3.00 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 nameOWC
Part number1R6T31R408 GB
Total capacity8 GB
Product type240-Pin DDR3L ECC RDIMM
Performance
Rated speedDDR3L 1600 (PC3L 12800)
Memory
CAS latencyCL11
ECC supportYes
Buffer typeRegistered
Memory rank1Rx4
Heat spreaderNo
Power
Rated voltage1.35 V
Compatibility
Compatible systemsHP ProLiant DL360e Gen8
HP ProLiant DL360p Gen8
HP ProLiant DL380p Gen8
HP ProLiant DL385p Gen8
HP ProLiant DL580 Gen8

Other versions of this model

5 more in the same range

Questions about this item

How do I install the 240-pin DDR3L ECC RDIMM in an HP ProLiant DL360p Gen8 and what step is often missed?

Power down the server, open the chassis, align the notch on the 240-pin module with the slot key, press firmly until both retention clips click, then enable ECC in the BIOS before booting the OS — skipping the BIOS step leaves error correction inactive.

What maintenance or replacement will the 1.35V registered module need over its service life?

No scheduled maintenance is required; the module has no heat spreader or moving parts. Replace it only if memory diagnostics report uncorrectable ECC errors or the server fails POST with the DIMM seated.

What limit appears first when the 8GB 1Rx4 CL11 kit runs sustained workloads on a DL380p Gen8?

The memory controller’s maximum supported capacity per channel is reached before thermal or bandwidth limits, so adding further DIMMs beyond the platform’s ranked population rules will not increase usable memory.

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