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 184-pin DDR266 registered ECC DIMM 1.2 inch

HP

HP 261586-051 2GB DDR266 ECC Registered DIMM server RAM

SKU CH-6RMH-HG0WB

2GB DDR266 ECC registered DIMM operating at 266 MHz with CL2.5 latency for HP ProLiant servers

  • Total capacity12 GB
  • Rated speedDDR SDRAM
  • CAS latencyCL2.5
  • ECC supportECC
  • Buffer typeRegistered
  • Product type200-Pin DDR SO-DIMM
  • 2 GB capacity expands server memory using a single DDR266 registered module
  • ECC error checking protects data integrity in HP ProLiant systems
  • Registered signal processing stabilises electrical loads for reliable operation
  • 184-pin DIMM form factor fits compatible 1.2-inch server slots
  • 266 MHz DDR266/PC2100 speed matches original HP specification

HP 261586-051 2GB DDR266 ECC Registered DIMM

This HP 261586-051 module provides 2GB of DDR266 ECC registered memory for HP ProLiant servers. It operates at 266 MHz with a CAS latency of CL2.5 and requires 2.50 V. The 184-pin DIMM form factor fits compatible server motherboards designed for registered modules.

Capacity and headroom for legacy server workloads

A single 2GB stick adds modest capacity to systems using the DDR266/PC2100 standard. It handles older operating systems and light database tasks within that limit. Headroom runs out quickly with modern virtualisation or multi-user loads that demand larger memory pools per channel.

Build quality and daily implications

The 1.2-inch width and 184-pin layout match the registered DIMM slot keying on supported HP ProLiant platforms. ECC and registered signal processing improve data integrity for continuous operation. Installers must verify the motherboard accepts registered DDR SDRAM before seating the module.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $23.99
Cheaper than about 93% of the 6,523 comparable items (median $188.99).
Total capacity 12 GB
Lower than about 75% of the 6,064 comparable items (median 32 GB).
Price per GB $2.00 per GB
Cheaper than about 93% of the 6,064 comparable items (median $7.25 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 nameHP
Total capacity12 GB
Product type200-Pin DDR SO-DIMM
Performance
Rated speedDDR SDRAM
Memory
CAS latencyCL2.5
ECC supportECC
Buffer typeRegistered

Questions about this item

Will this 184-pin DDR266 registered DIMM work in an older HP ProLiant server that currently uses PC2100 memory?

Yes, the module matches the DDR266/PC2100 standard, runs at 266 MHz with CL2.5 latency and uses the 184-pin DIMM form factor required by those systems.

How can I confirm the 2GB module is detected and running with ECC after installation?

Check the BIOS memory summary or POST screen; it should show 2 GB at 266 MHz with ECC enabled and registered signal processing active.

Does the 261586-051 come as a single 2GB stick or do I need to order additional modules separately?

The package contains one 2 GB registered DIMM; any extra modules must be purchased separately.

More in ECC Server RAM

Similar items