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Green circuit board with gold edge connectors and black memory chips

OWC

OWC 8GB DDR5 5200 CL42 SODIMM 1Rx8 1.1V ThinkBook 16p G4 IRH

SKU CH-B9CM-FY028

8GB DDR5 5200 CL42 SODIMM upgrade for Lenovo ThinkBook 16p G4 IRH at 1.1V

  • Capacity8GB
  • Type262-Pin DDR5 Non-ECC SODIMM
  • SpeedDDR5 5200 (PC5 41600)
  • CAS LatencyCL42
  • Voltage1.1V
  • ECCNo

Capacity 8GB

  • 8 GB capacity lets you run more apps at once
  • DDR5 5200 speed transfers data at up to 5200 MT/s
  • CL42 latency keeps response times tight
  • 1 V operation reduces power draw and heat
  • 262-pin SODIMM fits the ThinkBook 16p G4 IRH slot

System-specific DDR5 upgrade

This OWC module is an 8GB DDR5 5200 CL42 SODIMM built to the exact specification of the Lenovo ThinkBook 16p G4 IRH. It runs at 1.1V as a 1Rx8 unbuffered non-ECC part with 262 pins. The single stick adds memory capacity without any configuration changes.

Replaces the original fitted module

If the laptop shipped with a smaller stick or a slower DDR5 variant, this PC5-41600 part restores full JEDEC-standard bandwidth and latency. The jump is worth it when the current memory limits multitasking or forces the system to swap to storage.

Suits ThinkBook 16p G4 IRH owners

Buyers who need ECC error correction, registered buffering, or a heat spreader should look elsewhere. This module also does not fit systems that require a different pin count, voltage, or DDR generation.

Highlights

  • 8 GB capacity lets you run more apps at once
  • DDR5 5200 speed transfers data at up to 5200 MT/s
  • CL42 latency keeps response times tight
  • 1 V operation reduces power draw and heat
  • 262-pin SODIMM fits the ThinkBook 16p G4 IRH slot

Specifications

BrandOWC
Part Number5S2D51R808GB
Capacity8GB
Type262-Pin DDR5 Non-ECC SODIMM
SpeedDDR5 5200 (PC5 41600)
CAS LatencyCL42
Voltage1.1V
ECCNo
Buffered/RegisteredUnbuffered
Rank1Rx8
Heat SpreaderNo
Compatible SystemLenovo ThinkBook 16p G4 IRH

Other versions of this model

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Questions about this item

Will this 262-pin DDR5 SODIMM fit the memory slot in my ThinkBook 16p G4 IRH?

Yes, the module uses the standard 262-pin DDR5 SODIMM form factor specified for the ThinkBook 16p G4 IRH, so it seats directly into the laptop's memory slot.

What is the correct way to seat the module, and what step do people often miss?

Insert the SODIMM at an angle until the gold contacts are fully hidden, then press down firmly until both side clips click; the step often missed is verifying both clips have latched.

Does this 8 GB DDR5 module require any future maintenance or replacement?

No, the non-ECC unbuffered DDR5 SODIMM has no moving parts or batteries; it is designed to last the lifetime of the ThinkBook 16p G4 IRH without servicing.

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