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Green rectangular circuit board with gold edge connectors and black memory chips

OWC

OWC 4GB DDR3 1600 CL11 240-pin 1.5V Non-ECC UDIMM for Lenovo ThinkCentre M93p E32

SKU CH-RSQB-DP33H

A 4 GB DDR3 1600 CL11 UDIMM built for Lenovo ThinkCentre M93p and E32 desktops

  • Total capacity4 GB
  • Rated speedDDR3 1600 (PC3 12800)
  • CAS latencyCL11
  • Rated voltage1.5 V
  • Buffer typeUnbuffered
  • Memory rank1Rx8
  • 4GB DDR3-1600 capacity expands multitasking headroom for Lenovo ThinkCentre M93p and E32
  • JEDEC-standard PC3-12800 CL11 timing ensures stable operation at rated speed
  • 5V unbuffered non-ECC design matches factory voltage for warranty-safe upgrades
  • 240-pin UDIMM form factor fits desktop DIMM slots without adapters
  • Single-rank 1Rx8 organisation simplifies installation in compatible ThinkCentre systems

System-Specific DDR3 Upgrade

This 4 GB DDR3 module is built for Lenovo ThinkCentre M93p and E32 desktops. It suits owners who need a straightforward capacity increase for everyday office tasks. Buyers whose systems require ECC, registered DIMMs or a different DDR generation cannot use this part.

Thermals and Power Draw

The stick runs at the standard 1.5 V JEDEC voltage with no heat spreader, so it adds minimal thermal load inside the chassis. Unbuffered, single-rank organisation keeps electrical demand low during typical workloads. No active cooling or extra airflow is required for normal operation.

Build and Daily Use

A plain green PCB with 240-pin gold contacts fits directly into the desktop’s UDIMM slots. The 1Rx8 layout works in single-channel or matched-pair configurations supported by the platform. Installation is a tool-free DIY step that does not void the system warranty.

How it compares

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

Price $18.99
Cheaper than about 91% of the 21,161 comparable items (median $397.99).
Total capacity 4 GB
Lower than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $4.75 per GB
Cheaper than about 80% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number1U6D31R804 GB
Total capacity4 GB
Product type240-Pin DDR3 Non-ECC UDIMM
Performance
Rated speedDDR3 1600 (PC3 12800)
Memory
CAS latencyCL11
ECC supportNo
Buffer typeUnbuffered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.5 V
Compatibility
Compatible systemsLenovo ThinkCentre M93p Desktop
Lenovo ThinkCentre E32 Desktop

Other versions of this model

5 more in the same range

Questions about this item

How do I install the 240-pin DDR3 UDIMM in my ThinkCentre M93p, and what step do people often miss?

Power off the PC, unplug it, open the case, align the notch on the 240-pin DDR3 module with the slot key, press firmly until both retention clips click, then close the case before powering on.

What maintenance or replacement will this 4GB DDR3 1600 module need later?

No routine maintenance is required; keep the interior dust-free and reseat the module only if the system fails to recognise the 4GB capacity at 1600MHz.

What limit appears first when the 1Rx8 1.5V DIMM runs under sustained load?

The CL11 latency at 1600MHz sets the throughput ceiling; the module has no heat spreader, so prolonged heavy use may hit thermal throttling before bandwidth saturates.

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