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Two black DDR2 desktop memory modules without heat spreaders

OWC

OWC 4GB (2x2GB) DDR2 800 PC2-6400 CL6 1.8V UDIMM Desktop RAM

SKU CH-E237-CSFT8

A dual-channel kit of two unbuffered DDR2 800 modules totalling 4 GB at CL6 latency and 1.8 V for desktop upgrades

  • Capacity4GB (2 x 2GB)
  • SpeedDDR2 800 (PC2 6400)
  • CAS LatencyCL6
  • Voltage1.8V
  • ECCNo
  • Buffered/RegisteredUnbuffered

Capacity 4GB (2 x 2GB)

  • Dual-channel kit adds 4 GB capacity for smoother multitasking
  • DDR2 800 speed with CL6 latency improves data throughput
  • 8 V JEDEC-standard voltage ensures broad desktop compatibility
  • 240-pin unbuffered non-ECC modules install without extra configuration
  • 100 % ROHS-compliant build tested to meet OEM specifications

DDR2 800 dual-channel kit

This OWC kit delivers four gigabytes of DDR2 800 memory in two matched 2GB modules. It targets owners of legacy desktops that require PC2-6400 unbuffered DIMMs for a straightforward capacity boost.

240-pin unbuffered DIMMs

Each stick uses the standard 240-pin UDIMM form factor without a heat spreader, keeping the profile low for tight motherboard layouts. The black PCB fits directly into existing slots, and the JEDEC-compliant 1.8V operation ensures broad compatibility with older platforms.

CL6 latency at 1.8V

The modules run at CAS latency 6 while maintaining the standard DDR2 voltage of 1.8V, a combination that determines whether the kit will post stably on a given board. Matching these two figures to the system's requirements is the single check that confirms a successful upgrade.

Ciri-ciri utama

  • Dual-channel kit adds 4 GB capacity for smoother multitasking
  • DDR2 800 speed with CL6 latency improves data throughput
  • 8 V JEDEC-standard voltage ensures broad desktop compatibility
  • 240-pin unbuffered non-ECC modules install without extra configuration
  • 100 % ROHS-compliant build tested to meet OEM specifications

Spesifikasi

BrandOWC
Part Number6U4D22R8004P
Capacity4GB (2 x 2GB)
SpeedDDR2 800 (PC2 6400)
CAS LatencyCL6
Voltage1.8V
ECCNo
Buffered/RegisteredUnbuffered
Multi-channel KitDual Channel Kit
ColorBlack
Heat SpreaderNo
Recommend UseDesktops
LED ColorNone

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What speed does the DDR2 800 PC2-6400 rating cap the modules at in practice?

The kit runs at DDR2 800 with a PC2-6400 bandwidth ceiling and CL6 latency, so the memory controller will not push data faster than that specification allows.

What physical slot and pin count do these 240-pin UDIMMs need to fit?

Each module is a 240-pin unbuffered DIMM, so it requires a standard desktop DDR2 DIMM slot with the matching key notch; the black PCB has no heat spreader to clear oversized CPU coolers.

How are the two sticks installed for dual-channel operation, and what step do people often miss?

Insert one stick into each matched-colour slot pair, press down until both side clips click, then verify the BIOS reports 4 GB in dual-channel mode — skipping the second slot or mixing channels is the common error.

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