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Two green DDR1 DIMMs with gold contacts and black chips

Computer Memory Solutions

Computer Memory Solutions 4GB (2x2GB) DDR1 266MHz ECC Registered DIMM - B57

SKU CH-NPQP-BPGRY

DDR1 registered ECC memory kit supplying 4 GB across two 2 GB DIMMs for HP ProLiant ML360 G3 servers

  • Total capacity4 GB (2 × 2 GB)
  • Rated speedDDR 266 (PC 2100)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL2
  • Memory timings2-2-2
  • Rated voltage2.5 V
  • ECC registered design protects server data integrity
  • DDR1 266MHz CL2 timing matches original ProLiant spec
  • 184-pin DIMM form factor fits ML360 G3 slots
  • 4GB kit (2×2GB) uses major-brand chipset
  • Guaranteed compatible with HP part 300682-B21

Server DDR1 ECC Registered Kit

This 4 GB kit contains two 2 GB registered DIMMs built for DDR1 266 MHz operation. ECC and registered buffering provide the error correction and signal stability required by the supported server platforms. The modules use 184-pin connectors and run at 2.5 V with CL2 2-2-2 timing.

HP ProLiant ML360 G3 and blade compatibility

The kit is validated for HP ProLiant ML360 G3, ML370 G3, ML380 G3, DL585 and several Integrity and ProLiant blade models. Systems that require unbuffered non-ECC memory or a different DDR generation will not accept these modules. Buyers needing higher capacity per slot or faster DDR speeds should look elsewhere.

Sustained load behaviour

Registered signalling and ECC checking maintain data integrity during continuous server workloads. The CL2 timing and 2.5 V operation keep latency low while the registered design reduces electrical load on the memory bus over long periods. No heat spreader is fitted, so adequate chassis airflow is necessary for stable temperatures.

How it compares

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

Price $25.99
Cheaper than about 87% of the 21,161 comparable items (median $397.99).
Total capacity 4 GB (2 × 2 GB)
Lower than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $6.50 per GB
Cheaper than about 61% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM256722100ECCREGDIMMCL2
Total capacity4 GB (2 × 2 GB)
Product type184-Pin DDR SDRAM
Performance
Rated speedDDR 266 (PC 2100)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL2
Memory timings2-2-2
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage2.5 V
Compatibility
Compatible systemsHp/Compaq Proliant Ml360 G3
In the box
Included items2 Memory RAM Sticks

Questions about this item

What server models must I own to use this 184-Pin DDR1 266MHz ECC Registered DIMM kit?

This kit is validated for HP/Compaq ProLiant ML360 G3, ML370 G3, ML380 G3, ML150, DL585 (DDR-266MHz), BL20p G2, BL30p, BL40p and Integrity BL60p Blade systems.

Can I mix these CL2 Registered modules with older unbuffered DDR1 DIMMs already in my ProLiant?

No, Registered and unbuffered DIMMs cannot be mixed on the same memory bus; the server requires all slots to use Registered modules of matching speed and voltage.

How do I confirm the kit is running at the rated 266MHz CL2 after installation?

Enter the server BIOS or run a memory diagnostic utility; it should report each module as PC2100 DDR 266 with 2-2-2 timings at 2.5V.

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