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Two green DDR3 DIMM sticks, no heat spreaders

Computer Memory Solutions

Computer Memory Solutions 4GB (2x2GB) DDR3 1333 ECC Unregistered DIMM Z400 B74

SKU CH-7CY7-M5KPF

A 4 GB DDR3 ECC unregistered kit of two 2 GB modules running at 1333 MHz for HP Z400 workstations

  • Capacity4GB (2 x 2GB)
  • Type240-Pin DDR3 SDRAM
  • SpeedDDR3 1333 (PC3 10600)
  • CAS LatencyCL9
  • Timing9-9-9
  • Voltage1.5V
  • ECC protection detects and corrects data errors
  • 1333 MHz DDR3 speed matches Z400 specifications
  • 2x2GB kit enables triple-channel configuration
  • Unregistered DIMM design fits Z400 workstation slots
  • 5V standard voltage ensures stable operation

Z400 ECC memory kit

This kit provides 4 GB of DDR3 ECC unregistered memory in two 2 GB modules built for the HP Workstation Z400. It suits technicians restoring or expanding an existing Z400 where error-correcting RAM is required.

240-pin unregistered DIMMs

The modules use a standard 240-pin DDR3 interface without heat spreaders, operating at 1.5 V with CL9 9-9-9 timing. They install in the Z400's three-channel slots and can be added one at a time, though populating all three channels enables triple-channel interleaving.

Two-module pack

The package contains two matching sticks so you can populate a pair of slots immediately. CMS backs the kit with a limited lifetime warranty when purchased directly, and notes that module appearance may vary from the reference photo.

Points forts

  • ECC protection detects and corrects data errors
  • 1333 MHz DDR3 speed matches Z400 specifications
  • 2x2GB kit enables triple-channel configuration
  • Unregistered DIMM design fits Z400 workstation slots
  • 5V standard voltage ensures stable operation

Caractéristiques

BrandComputer Memory Solutions
ModelCM2567210600ECCNRDIMM2R8
Capacity4GB (2 x 2GB)
Type240-Pin DDR3 SDRAM
SpeedDDR3 1333 (PC3 10600)
CAS LatencyCL9
Timing9-9-9
Voltage1.5V
ECCYes
Buffered/RegisteredUnregistered
Rank2Rx8
ChipsetMajor Brand Chipset
Heat SpreaderNo
Compatible SystemHp Workstation Z400 Workstation
Package Content2 Memory RAM Sticks

Questions sur cet article

What DDR3 speed does this kit run at, and what is the practical ceiling on a Z400?

The kit is rated DDR3-1333 (PC3-10600). On a Z400 the modules will clock down to 1066 MHz or 800 MHz depending on the Xeon model and how many DIMMs are populated.

What physical slot and form factor do these modules need?

They are 240-pin DDR3 DIMMs. The Z400 accepts them in its standard DIMM sockets — three per CPU, six total — and the kit contains two unbuffered ECC sticks.

How are they installed, and what step is often missed for best performance?

Insert each stick into a DIMM slot until the latches click. For triple-channel speed on the Z400, populate all three channels (one DIMM per channel) rather than filling a single bank.

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