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
Green circuit board with black memory chips and gold edge connector

OWC

OWC 4GB DDR3 1333 PC3-10600 CL9 2Rx8 204-pin 1.5V SODIMM for ThinkPad Edge E425 E520 E525

SKU CH-HWA6-89R5B

A 4GB DDR3 1333 SODIMM upgrade for ThinkPad Edge E425, E520 and E525 laptops

  • Total capacity4 GB
  • Rated speedDDR3 1333 (PC3 10600)
  • CAS latencyCL9
  • Rated voltage1.5 V
  • Buffer typeUnbuffered
  • Memory rank2Rx8
  • Boost performance with a 4GB DDR3 1333MHz module
  • JEDEC and RoHS compliant for warranty-safe upgrades
  • Designed for ThinkPad Edge E425 E520 E525
  • Single 204-pin SODIMM at 1.5V CL9 latency
  • Easy DIY installation with lifetime warranty support

ThinkPad Edge E425 E520 E525 Memory Upgrade

This 4GB DDR3 SODIMM is built for Lenovo ThinkPad Edge models E425, E520 and E525. It adds a single 4GB module to a compatible laptop or mini PC. The part is new and carries JEDEC and RoHS compliance for a warranty-safe upgrade. Buyers who need more than 4GB of total memory or who own a different laptop series should look elsewhere.

Installation Ease And Common Issues

The 204-pin SODIMM format fits the standard memory slot in the listed ThinkPad Edge systems. Installation is a straightforward DIY task that typically requires only a screwdriver to open the access panel. The most common issue is mixing modules of different speeds or capacities, which can prevent the system from booting or force it to run at the lowest common specification.

Deciding Specification — DDR3 1333 PC3-10600

The module runs at DDR3 1333 (PC3-10600) with CL9 latency at 1.5V. This speed and voltage combination is the single factor that determines whether the upgrade will work in your ThinkPad Edge E425, E520 or E525. Systems requiring a different DDR generation, a higher or lower voltage, or a different pin count will not accept this module.

How it compares

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

Price $17.99
Cheaper than about 92% 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 $4.50 per GB
Cheaper than about 81% 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 nameOWC
Part number1S3D32R804 GB
Total capacity4 GB
Product type204-Pin DDR3 Non-ECC SODIMM
Performance
Rated speedDDR3 1333 (PC3 10600)
Memory
CAS latencyCL9
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.5 V
Compatibility
Compatible systemsLenovo ThinkPad Edge E425
Lenovo ThinkPad Edge E520
Lenovo ThinkPad Edge E525

Other versions of this model

5 more in the same range

Questions about this item

How can I confirm the 4GB DDR3 1333 module is running at PC3-10600 speed after installing it in my ThinkPad Edge E520?

Open Task Manager or a system-information tool such as CPU-Z and verify the memory frequency reads 1333MHz with CL9 timings.

What is included with the 1S3D32R804GB module and do I need any extra parts for my ThinkPad Edge E425?

The box contains one 4GB 204-pin 1.5V SODIMM; no additional components are required for installation.

Which OWC DDR3 SODIMM capacity should I choose if my ThinkPad Edge E525 has two slots and supports up to 8GB total?

Select this 4GB module; adding two will reach the 8GB maximum supported by the system.

More in Model-Specific Memory Upgrades

Similar items