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Green circuit board with black memory chips and gold edge connector

Computer Memory Solutions

Computer Memory Solutions 4GB DDR3 1333 SO-DIMM memory upgrade A30

SKU CH-Y79H-4WBR4

A 4 GB DDR3 SO-DIMM running at 1333 MHz for compatible Acer Aspire laptops

  • Total capacity4 GB
  • Rated speedDDR3 1333 (PC3 10600)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL7
  • Memory timings7-7-7
  • Rated voltage1.5 V
  • 4 GB DDR3 1333 MHz SO-DIMM boosts multitasking on compatible Acer Aspire laptops
  • CL7 7-7-7 timing at 1.5 V delivers responsive DDR3 performance for everyday workloads
  • 204-pin unbuffered non-ECC module fits factory memory slots in Aspire 5749, 7741 and 5749Z models
  • Major-brand DRAM chips ensure stable operation across both memory channels
  • Single 4 GB stick allows simple upgrade to 8 GB maximum on two-slot systems

Acer Aspire DDR3 SO-DIMM upgrade

This 4 GB DDR3 module is built to upgrade Acer Aspire models 5749-6863, 7741Z-4643 and 5749Z-4449. It installs in a single 204-pin SO-DIMM slot and runs at 1.5 V without ECC or buffering. The stick uses major-brand chips and carries a limited lifetime warranty from the manufacturer.

Suitable for single-slot top-up, not full 8 GB

Owners wanting to add 4 GB to an empty slot or replace a failed stick will find this a direct match. Systems already populated with two modules or users targeting the 8 GB maximum should look at a 2 x 4 GB kit instead.

Speed rating DDR3 1333 (PC3 10600)

The module is rated for 1333 MT/s with CL7 7-7-7 timings. If the laptop memory controller only supports 1066 MT/s, the part will downclock automatically, but it will not run faster than 1333 MT/s.

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).

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 nameCM5126410600SODRH
Total capacity4 GB
Product type204-Pin DDR3 SO-DIMM
Performance
Rated speedDDR3 1333 (PC3 10600)
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 systemsAcer Aspire As5749-6863, 7741Z-4643, As5749Z-4449
In the box
Included items1 Memory RAM Stick

Questions about this item

Will this 204-pin DDR3 1333 MHz SO-DIMM run at its rated speed alongside the existing 1066 MHz memory in my Acer Aspire 5749?

The module is rated for 1333 MHz CL7 at 1.5 V; when paired with 1066 MHz sticks the system will downclock both to 1066 MHz and use the slower timings.

How can I confirm the stick is detected at 4 GB and running in dual-channel mode after installation?

Open Task Manager’s Performance tab or run CPU-Z; both should show 4 GB total and dual-channel operation if the second slot is populated with a matching module.

Does the package include only the single 4 GB SO-DIMM or are tools and a second stick also supplied?

The box contains one 4 GB 204-pin DDR3 SO-DIMM; no screwdriver, no second module and no heat spreader are included.

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