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Green 240-pin DDR3L ECC registered RDIMM module, no heat spreader

OWC

OWC 8GB DDR3L 1600 CL11 ECC Registered RDIMM 1Rx4 1.35V server RAM

SKU CH-543Q-QE5H1

An 8 GB DDR3L 1600 ECC registered RDIMM for servers and workstations, running at 1.35 V with CL11 latency

  • Total capacity8 GB
  • Rated speedDDR3L 1600 (PC3L 12800)
  • CAS latencyCL11
  • Rated voltage1.35 V
  • Buffer typeRegistered
  • Memory rank1Rx4
  • ECC registered design protects data integrity in servers
  • DDR3L 1600 CL11 delivers 12800 MB/s bandwidth at 1.35V
  • 8GB 1Rx4 module fits 240-pin RDIMM slots
  • JEDEC and ROHS compliant for warranty-safe upgrades
  • Direct replacement for Lenovo 00D5035 00D5036 46W0700 46W0771

Server ECC RDIMM upgrade

This 8 GB DDR3L module is built for workstations, servers, NAS systems and routers that require registered ECC memory. It will not work in standard desktop computers and cannot be mixed with unbuffered DIMMs. The part matches Lenovo 00D5035, 00D5036, 46W0700 and 46W0771 specifications exactly.

Low-voltage DDR3L operation

Running at 1.35 V, the module draws less power than standard DDR3 while maintaining 1600 MHz speed and CL11 latency. JEDEC and RoHS compliance ensure stable thermals without a heat spreader. Registered buffering reduces electrical load on the memory controller during sustained workloads.

240-pin registered DIMM fit

The single-rank 1Rx4 design occupies one 240-pin DDR3L slot and adds 8 GB of error-correcting capacity. It requires a platform that supports DDR3L registered ECC DIMMs and will not function in consumer boards or alongside unbuffered memory. No extra cooling or voltage adjustment is needed.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $23.99
Cheaper than about 93% of the 6,523 comparable items (median $188.99).
Total capacity 8 GB
Lower than about 80% of the 6,064 comparable items (median 32 GB).
Price per GB $3.00 per GB
Cheaper than about 89% of the 6,064 comparable items (median $7.25 per GB).

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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

Questions about this item

How do I install this 240-pin DDR3L RDIMM in a server, and what step is often missed?

Power down, open the chassis, align the notch on the 240-pin module with the slot key, press firmly until both clips lock, then verify in BIOS that ECC registered mode is active — skipping the BIOS check is the common oversight.

What maintenance or replacement will this 8GB DDR3L 1600 CL11 module need over time?

No scheduled maintenance is required; the module has no heat spreader or moving parts, so replacement is only necessary if a memory test reports correctable ECC errors that become uncorrectable or if capacity must be increased.

What limit appears first when this 1.35V registered DIMM runs sustained workloads?

The 8GB capacity ceiling is reached before thermal or voltage limits, because the registered buffer and 1.35V operation keep power draw low while the single rank caps total addressable memory per slot.

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