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Green DDR5 UDIMM circuit board with black memory chips and gold edge connector

NEMIX RAM

NEMIX RAM 8GB DDR5 4800 CL40 UDIMM THINKMATE TWX-QS4-14R7 memory upgrade

SKU CH-ZH45-048H7

8 GB DDR5 4800 UDIMM module with CL40 latency and 1.1 V operation for ThinkMate TWX-QS4-14R7 tower servers

  • Total capacity8 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeUnbuffered
  • Rated voltage1.1 V
  • 8 GB capacity expands server memory for demanding workloads
  • DDR5 4800 speed delivers high bandwidth for data-intensive tasks
  • 1 V operation reduces power draw compared to previous DDR generations
  • CL40 latency supports responsive performance in compatible Thinkmate systems
  • 288-pin UDIMM form factor fits standard desktop and tower server slots

ThinkMate DDR5-4800 UDIMM

This 8 GB DDR5-4800 CL40 unbuffered UDIMM is validated for ThinkMate TWX-QS4-14R7 tower servers. It runs at 1.1 V with a single-rank 1Rx8 organisation and uses major-OEM DRAM chips. The module has no heat spreader and carries a lifetime replacement warranty from NEMIX RAM.

Builders adding capacity to a TWX-QS4-14R7

Installers who need non-ECC DDR5 memory for this specific ThinkMate platform will find the correct pin count, voltage and timing. Systems that require ECC, registered modules or a different DDR generation cannot use this kit. Buyers with other motherboards should verify their qualified-vendor list before ordering.

PC5-38400 speed rating

The module operates at DDR5-4800 (PC5-38400) with CL40 latency. This single figure determines whether the memory matches the server's supported data rate and timing budget.

How it compares

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

Price $117.99
Cheaper than about 65% 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 $14.75 per GB
Pricier than about 61% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineTHINKMATE Server/Workstation Compatible Series Memory
Model nameTHINKMATE DDR5 4800 MHz Non-ECC Unbuffered UDIMM
Part numberMD38400-818K1
Total capacity8 GB
Product type288-Pin DDR5 UDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL40
ECC supportNo
Buffer typeUnbuffered
Heat spreaderNo
Memory rank1Rx8
Power
Rated voltage1.1 V
Compatibility
Compatible systemsTHINKMATE
In the box
Included items8 GB (1 × 8 GB) DDR5 4800 MHz PC5-38400 1Rx8 1.1 V CL40 288-PIN Non-ECC Unbuffered UDIMM

Questions about this item

How do I install the 288-pin DDR5 UDIMM in the ThinkMate TWX-QS4-14R7, and what step is often missed?

Power down and unplug the server, open the chassis, locate the DDR5 DIMM slots, align the module notch with the slot key, press firmly until both retention clips click, then verify the new 8 GB capacity in BIOS before closing the case.

Will the 1.1 V DDR5 module need any firmware updates or component replacements during its service life?

The module itself has no moving parts and requires no scheduled maintenance; only a BIOS update on the ThinkMate platform might be needed if the vendor releases new memory-training code.

What thermal limit appears first when the CL40 4800 MT/s kit runs sustained workloads in the tower server?

Because the UDIMM lacks a heat spreader, the DRAM junction temperature will reach its throttling threshold before the 1.1 V power envelope becomes a constraint.

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