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Green PCB DDR3 240-pin DIMM with black chips and silver label

A-Tech

A-Tech 4GB DDR3 1333 ECC RDIMM 2Rx4 for IBM-Lenovo 43X5047 44T1473 46C0591 47J0156 49Y1430 67Y0016 Server RAM

SKU CH-3VB5-A1TPF

4GB DDR3 1333MHz ECC registered DIMM with CL9 latency and 1.5V operation for compatible IBM-Lenovo servers

  • Capacity4GB
  • SpeedDDR3 1333 (PC3 10600)
  • CAS LatencyCL9
  • Voltage1.50V
  • ECCYes
  • Buffered/RegisteredRegistered
  • ECC protection guards data integrity with registered DDR3 architecture
  • 4 GB capacity adds headroom for virtualised workloads at 1333 MHz
  • CL9 latency at 1.5 V delivers responsive server performance
  • 240-pin RDIMM form factor fits listed IBM-Lenovo part numbers
  • Major-brand chipset and A-Tech testing ensure reliable operation

4GB DDR3 ECC RDIMM for IBM-Lenovo Servers

This 4GB registered DIMM is built for IBM-Lenovo servers and workstations that require DDR3 1333 ECC memory. It replaces part numbers 43X5047, 44T1473, 46C0591, 47J0156, 49Y1430 and 67Y0016. The module uses a 2Rx4 organisation and major-brand chips. Buyers needing higher density per slot or non-ECC memory should look elsewhere.

DDR3 1333 Registered Interface Limits

The DDR3 1333 standard tops out at 10600 MB/s theoretical bandwidth with a CL9 latency at 1.50V. Registered buffering adds one clock cycle of delay but allows the memory controller to drive more modules per channel. Systems limited to lower DDR3 speeds will downclock this module automatically. Boards that only accept unbuffered UDIMMs cannot use this part.

2Rx4 Rank Determines Slot Population

The dual-rank 2Rx4 layout counts as two logical ranks per module, which affects the maximum number of DIMMs a memory controller can support per channel. Consult the server documentation for rank limits before populating all slots. Exceeding the rank limit will prevent the system from posting or reduce the operating speed.

Points forts

  • ECC protection guards data integrity with registered DDR3 architecture
  • 4 GB capacity adds headroom for virtualised workloads at 1333 MHz
  • CL9 latency at 1.5 V delivers responsive server performance
  • 240-pin RDIMM form factor fits listed IBM-Lenovo part numbers
  • Major-brand chipset and A-Tech testing ensure reliable operation

Caractéristiques

BrandA-Tech
Capacity4GB
SpeedDDR3 1333 (PC3 10600)
CAS LatencyCL9
Voltage1.50V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
ChipsetMajor Brand Chipset
FeaturesMajor Brand Chips

Questions sur cet article

Should I choose the 4GB module or look for a different capacity?

This listing is for a single 4GB DDR3 1333 ECC RDIMM. Select it if your server needs a 4GB registered module; otherwise choose a capacity that matches your system's supported configuration.

What does the 1333MHz speed mean once the module is installed?

The module runs at DDR3 1333 (PC3-10600) with CL9 latency at 1.50V, delivering the rated throughput for compatible IBM-Lenovo servers that support this speed grade.

Is the 240-pin DDR3 interface the limiting factor for bandwidth?

Yes, the 240-pin DDR3 DIMM interface caps transfer rates at the PC3-10600 level, so the module cannot exceed the 1333MHz data rate even if the memory controller supports higher speeds.

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