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Green circuit board with black memory chips, gold edge connector, thin rectangular SODIMM form

OWC

OWC 4GB DDR3 1066 PC3-8500 CL7 2Rx8 204-pin 1.5V SODIMM memory upgrade

SKU CH-W3S5-YVXH8

A 4 GB DDR3 1066 SODIMM module for HP EliteBook 2540p, 2740p, 8440p, 8440w and 8740w laptops

  • Capacity4GB
  • Type204-Pin DDR3 Non-ECC SODIMM
  • SpeedDDR3 1066 (PC3 8500)
  • CAS LatencyCL7
  • Voltage1.5V
  • ECCNo
  • 4GB capacity boosts multitasking on compatible HP EliteBooks
  • DDR3 1066 PC3-8500 CL7 speed matches system requirements
  • JEDEC and RoHS compliant for warranty-safe upgrades
  • 204-pin SODIMM form factor fits 2540p, 2740p, 8440p, 8440w, 8740w
  • 5V unbuffered non-ECC design ensures stable operation

Targeted EliteBook upgrade

This single 4 GB DDR3 1066 module is built for HP EliteBook 2540p, 2740p, 8440p, 8440w and 8740w notebooks. It suits owners who need a straightforward capacity increase for everyday multitasking on these specific models. Buyers with other laptop families or desktop platforms cannot use this SODIMM.

JEDEC-compliant 204-pin stick

The unbuffered non-ECC module runs at the standard 1.5 V and carries a CL7 latency rating, matching the factory specification for the listed EliteBooks. Its 2Rx8 organisation and lack of a heat spreader keep the profile thin enough for tight service bays. Systems that require registered or ECC memory will not accept this part.

Lifetime warranty and DIY guidance

OWC backs the module with a limited lifetime warranty and free technical support, plus an advanced replacement programme that reduces downtime. An online installation video walks through the upgrade steps for first-time installers. No additional software, cables or mounting hardware are bundled with the memory.

Helstu kostir

  • 4GB capacity boosts multitasking on compatible HP EliteBooks
  • DDR3 1066 PC3-8500 CL7 speed matches system requirements
  • JEDEC and RoHS compliant for warranty-safe upgrades
  • 204-pin SODIMM form factor fits 2540p, 2740p, 8440p, 8440w, 8740w
  • 5V unbuffered non-ECC design ensures stable operation

Tæknilýsing

BrandOWC
Part Number8S5D32R804GB
Capacity4GB
Type204-Pin DDR3 Non-ECC SODIMM
SpeedDDR3 1066 (PC3 8500)
CAS LatencyCL7
Voltage1.5V
ECCNo
Buffered/RegisteredUnbuffered
Rank2Rx8
Heat SpreaderNo
Compatible SystemHP EliteBook 2540p
HP EliteBook 2740p
HP EliteBook 8440p
HP EliteBook 8440w
HP EliteBook 8740w

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What DDR3 speed and PC3 rating does this 4 GB SODIMM run at?

It runs at DDR3 1066 MHz with a PC3-8500 rating and CL7 latency.

Which slot type and pin count does this module need in an HP EliteBook?

It fits a 204-pin DDR3 SODIMM slot in the EliteBook 2540p, 2740p, 8440p, 8440w or 8740w.

How is the stick installed and what step do people often miss?

Power off, remove the battery, open the memory door, align the notch, press firmly until both clips click, then replace the door and battery before booting.

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