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Green printed circuit board with black memory chips and gold edge contacts

OWC

OWC 8GB DDR3 1333 ECC Registered RDIMM 2Rx4 CL9 1.5V 240-pin memory upgrade

SKU CH-9W9D-G0SH8

Single 8 GB DDR3 1333 ECC registered RDIMM for Lenovo ThinkServer RD230, RD240 and TD200x

  • Total capacity8 GB
  • Rated speedDDR3 1333 (PC3 10600)
  • CAS latencyCL9
  • Rated voltage1.5 V
  • Buffer typeRegistered
  • Memory rank2Rx4

Capacity 8GB

  • ECC registered design protects data integrity in servers
  • 8 GB DDR3 1333 module expands ThinkServer capacity
  • CL9 latency at 1.5 V delivers stable throughput
  • 2Rx4 registered layout matches RD230 RD240 TD200x specs
  • Replaces seventeen Lenovo part numbers for drop-in upgrade

Server ECC RDIMM upgrade

This 8 GB DDR3 1333 registered ECC module is built for Lenovo ThinkServer RD230, RD240 and TD200x systems. It replaces a long list of Lenovo part numbers including 46C0542, 46C7449 and 49Y1436. The single 240-pin DIMM runs at PC3-10600 with CL9 latency at 1.5 V. It is not compatible with standard desktop computers or unbuffered memory.

Sustained load behaviour

Registered buffering and ECC correction keep data integrity intact during continuous server workloads. The 2Rx4 organisation spreads accesses across two ranks for steadier throughput. JEDEC-compliant 1.5 V operation avoids voltage drift over long uptime. No heat spreader is fitted, so airflow in the server chassis handles cooling.

Pre-order checklist

Verify your ThinkServer model is RD230, RD240 or TD200x before ordering. Confirm the motherboard accepts registered ECC RDIMMs and does not require unbuffered modules. Match capacity, speed and voltage across all populated slots for optimal performance. Ensure the 240-pin DDR3 form factor matches the memory slots in your chassis.

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
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).

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Specifications

Product
Brand nameOWC
Part number1R3D32R408 GB
Total capacity8 GB
Product type240-Pin DDR3 ECC RDIMM
Performance
Rated speedDDR3 1333 (PC3 10600)
Memory
CAS latencyCL9
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.5 V
Compatibility
Compatible systemsLenovo ThinkServer RD230
Lenovo ThinkServer RD240
Lenovo ThinkServer TD200x

Other versions of this model

5 more in the same range

Questions about this item

How much power does this 1.5 V DDR3 ECC RDIMM draw when the server runs 24/7?

At the rated 1.5 V the module follows standard DDR3 1333 power envelopes; actual draw depends on the ThinkServer platform and workload.

What must the Lenovo ThinkServer already have for this 2Rx4 registered DIMM to work?

The board must support DDR3 1333 ECC registered memory and provide a 240-pin RDIMM slot; unbuffered DIMMs cannot be mixed with this module.

Can I add this CL9 8 GB stick alongside older DDR3 1333 modules already in my RD230?

Yes, if the existing modules are also ECC registered at 1333 MT/s; mixing ranks or speeds may force the channel to the slowest common timing.

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