We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Two green 200-pin DDR1 SODIMM modules, no heat spreader

Computer Memory Solutions

Computer Memory Solutions CM128642700SO 2GB (2x1GB) DDR333 SODIMM memory upgrade

SKU CH-CXMW-86Y64

2 GB kit of two 1 GB DDR333 SODIMM modules for compatible ThinkPad T42 systems

  • Total capacity2 GB (2 × 1 GB)
  • Rated speedDDR 333 (PC 2700)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL2.5
  • Memory timings2.5-3-3
  • Rated voltage2.5 V
  • 2 GB kit upgrades ThinkPad T42 performance
  • DDR333 speed matches PC2700 system spec
  • CL2.5 timing lowers latency for Pentium M
  • 200-pin SODIMM fits factory memory slots
  • Two 1 GB modules enable dual-channel bandwidth

Compatible ThinkPad T42 upgrade

This 2GB kit uses two 1GB DDR333 SO-DIMM modules built for the IBM Lenovo ThinkPad T42 Pentium M series. It matches the 200-pin DDR1 PC2700 specification required by models 2373, 2374, 2375, 2376, 2378 and 2379. The memory is unbuffered, non-ECC and runs at CL2.5 timing.

Passive thermals and low voltage

Each stick operates at 2.5V without a heat spreader, relying on the notebook's internal airflow for cooling. The DDR333 speed and standard CAS latency keep power draw modest during typical office workloads. No active cooling or additional voltage is needed for normal operation.

Two matched modules in the box

The package contains a pair of 1GB sticks so the T42 can run in dual-channel mode where supported. Computer Memory Solutions backs the kit with a limited lifetime warranty when purchased directly from them. Product appearance may vary from the reference photograph.

How it compares

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

Price $19.99
Cheaper than about 91% of the 21,161 comparable items (median $397.99).
Total capacity 2 GB (2 × 1 GB)
Lower than about 95% of the 20,941 comparable items (median 32 GB).
Price per GB $10.00 per GB
Typical for this category: the median of 20,941 items is $8.19 per GB.

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM128642700SO
Total capacity2 GB (2 × 1 GB)
Product type200-Pin DDR SO-DIMM
Performance
Rated speedDDR 333 (PC 2700)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL2.5
Memory timings2.5-3-3
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage2.5 V
Compatibility
Compatible systemsIbm Lenovo Thinkpad T42 Pentium M Series
In the box
Included items2 Memory RAM Sticks

Questions about this item

How do I install the 200-pin SODIMM modules in a ThinkPad T42 without damaging the contacts?

Power off the laptop, remove the battery, open the memory door, align the notch on each module with the slot key, insert firmly until the gold contacts are no longer visible, then press down until the side clips click into place.

Will the 2.5 V DDR333 modules need any firmware updates or periodic re-seating to stay reliable?

No firmware updates are required; the modules are unbuffered non-ECC DRAM with no moving parts, so only occasional dust removal from the slot with compressed air is needed if the laptop is used in a dusty environment.

What thermal or electrical limit appears first when the 2Rx8 chips run at 333 MHz continuously?

The 2.5 V supply and CAS 2.5 timing set the electrical envelope; sustained loads will hit the DDR333 bandwidth ceiling before any thermal throttle point on these unbuffered chips.

More in Model-Specific Memory Upgrades

Similar items