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Two green 204-pin DDR3 SO-DIMM sticks in a clear blister pack

Computer Memory Solutions

Computer Memory Solutions 8GB (2x4GB) DDR3 1066MHz CL7 SODIMM for Fujitsu T901/T731/T580

SKU CH-059A-N3JCJ

8GB DDR3 SODIMM kit (2×4 GB) at 1066 MHz CL7 for Fujitsu Lifebook T901, T731 and T580 tablets

  • Total capacity8 GB (2 × 4 GB)
  • Rated speedDDR3 1066 (PC3 8500)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL7
  • Memory timings7-7-7
  • Rated voltage1.5 V
  • 8 GB dual-channel kit for Fujitsu T901/T731/T580
  • DDR3 1066 MHz CL7 timing for responsive performance
  • 204-pin SO-DIMM form factor fits both tablet sockets
  • Unbuffered non-ECC modules at standard 1.5 V operation
  • 2Rx8 major-brand chips validated for listed Lifebook models

Compatible upgrade for Fujitsu Lifebook tablets

This 8 GB kit contains two 4 GB DDR3 SO-DIMM modules rated at 1066 MHz with CL7 timing. It is built specifically for the Fujitsu-Siemens Lifebook T901, T731 and T580 tablet PCs. The unbuffered, non-ECC design matches the original memory specification for these systems.

Low-voltage operation at 1.5 V

Each module runs at the standard DDR3 voltage of 1.5 V without a heat spreader. The 2Rx8 rank organisation and major-brand chipset keep power draw modest during normal workloads. Passive cooling is sufficient for the thin tablet chassis these modules are designed to occupy.

Two-slot kit fills the maximum expansion

The T901, T731 and T580 each provide two SO-DIMM sockets supporting up to 8 GB total. This kit occupies both slots, delivering the full supported capacity in a single purchase. No additional modules are required and no slots remain free for further upgrades.

How it compares

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

Price $34.99
Cheaper than about 83% of the 21,161 comparable items (median $397.99).
Total capacity 8 GB (2 × 4 GB)
Lower than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $4.37 per GB
Cheaper than about 82% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM512648500SODRH
Total capacity8 GB (2 × 4 GB)
Product type204-Pin DDR3 SO-DIMM
Performance
Rated speedDDR3 1066 (PC3 8500)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL7
Memory timings7-7-7
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.5 V
Compatibility
Compatible systemsFujitsu-Siemens Lifebook Tablet Pc T901, T731, T580
In the box
Included items2 Memory RAM Sticks

Questions about this item

How do I install the 204-pin SODIMM modules in a Fujitsu T901?

Power off the tablet, remove the battery, open the memory cover, insert each stick at an angle until the gold contacts disappear, then press down until the side clips lock both 4GB modules in place.

What maintenance or replacement will the CL7 DDR3 kit need later?

No routine maintenance is required; if a module fails, the limited lifetime warranty from Computer Memory Solutions covers replacement of the 2Rx8 sticks.

What limit appears first under sustained load on the 1.5V PC3-8500 memory?

The 1066 MHz speed and CL7 latency set the throughput ceiling; thermal throttling may occur before bandwidth saturates because the modules have no heat spreader.

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