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Green printed circuit board with black memory chips and gold edge connectors, 240-pin DDR3 DIMM form factor

HP

HP 713985-B21-R 16GB DDR3 1600 Registered Server RAM

SKU CH-MTX7-YKK60 MPN 713985-B21-R

16 GB registered DDR3-1600 server memory with CL11 latency for HP systems

  • Capacity16GB
  • Type240-Pin DDR3 SDRAM
  • SpeedDDR3 1600 (PC3 12800)
  • CAS LatencyCL11
  • Buffered/RegisteredRegistered
  • 16 GB capacity supports large server workloads
  • Registered DDR3 1600 delivers stable data transfer
  • CL11 latency reduces access delay for critical tasks
  • 240-pin DDR3 SDRAM fits compatible server slots
  • HP 713985-B21-R model ensures genuine HP quality

16GB Registered DDR3 1600 Module

This HP 713985-B21-R module provides 16GB of DDR3 SDRAM rated at 1600 MT/s (PC3 12800) with a CAS latency of CL11. It uses a 240-pin form factor and registered buffering for signal integrity. The part is designed for compatible HP ProLiant and Apollo server platforms requiring registered memory.

Registered ECC for Multi-DIMM Servers

This memory suits administrators expanding or repairing DDR3-era servers that mandate registered ECC DIMMs for capacities beyond a few modules per channel. Workstations and desktops that accept only unbuffered non-ECC memory cannot use this module. Buyers needing unbuffered DIMMs or a different DDR generation should look elsewhere.

CL11 Latency at 1600 MT/s

The CL11 timing at the 1600 MT/s data rate determines compatibility with the memory controller's supported speed bins and rank population rules. Verify the server's qualified vendor list to ensure this latency and registered organisation are accepted for the intended slot configuration.

Highlights

  • 16 GB capacity supports large server workloads
  • Registered DDR3 1600 delivers stable data transfer
  • CL11 latency reduces access delay for critical tasks
  • 240-pin DDR3 SDRAM fits compatible server slots
  • HP 713985-B21-R model ensures genuine HP quality

Specifications

BrandHP
Model713985-B21-R
Capacity16GB
Type240-Pin DDR3 SDRAM
SpeedDDR3 1600 (PC3 12800)
CAS LatencyCL11
Buffered/RegisteredRegistered
Shipping weight0.45 kg
Package size254 × 203 × 127 mm

Questions about this item

Does the 16GB DDR3 1600 registered module hit any thermal or bandwidth ceiling during sustained server workloads?

The module runs at DDR3 1600 (PC3 12800) with CL11 latency; registered buffering stabilises the signal under continuous load, and the rated speed is the sustained limit.

How much heat or power does a 16GB stick add when the server runs 24/7?

Standard DDR3 1600 registered DIMMs draw low power per module; the registered design keeps signal integrity without extra heat beyond typical server memory envelopes.

What motherboard slot and chipset features must I already have to install this 240-pin DDR3 registered memory?

You need a server board with 240-pin DDR3 slots that support registered (buffered) DIMMs; consumer boards that accept only unbuffered memory will not work.

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