Dell 8GB (1*8GB) 2RX4 PC3-12800R HMT31GR7CFR4C-PB-RFB memory, DDR3, 12800 MHz

Dell 8GB (1*8GB) 2RX4 PC3-12800R HMT31GR7CFR4C-PB-RFB memory is a DDR3 registered DIMM designed for server and workstation environments. The module provides 8GB of capacity, operates with PC3-12800R class timing and is built in a 240-pin DIMM form factor. It uses a 2Rx4 rank configuration and is intended for systems that require registered ECC memory for improved stability and predictable operation under sustained workloads.

Advantages

This Dell HMT31GR7CFR4C-PB-RFB module offers reliable registered DDR3 memory with ECC support suitable for enterprise hardware. The 2Rx4 rank architecture and PC3-12800R classification enable compatibility with platforms that expect server-grade memory. The 240-pin DIMM format and 8GB capacity provide a balance between density and slot utilization, while the registered design helps maintain data integrity and system stability during intensive processing and multitasking.

Suitable for

• Servers and rack-mounted systems that require registered (RDIMM) DDR3 memory
• Workstations running memory-intensive applications where ECC and stability are important
• System upgrades to replace or expand existing PC3-12800R memory modules

Key specifications

• Brand: Dell
• Model / MPN: HMT31GR7CFR4C-PB-RFB
• Capacity: 8GB (1 x 8GB)
• Memory type: DDR3
• Module type: Registered DIMM (RDIMM), 2Rx4
• Speed class: PC3-12800R
• Frequency: 12800 MHz (effective data rate classification)
• Pin count: 240-pin DIMM

How to use

Install the Dell 8GB DDR3 RDIMM into a compatible 240-pin DIMM slot on a server or workstation motherboard that supports PC3-12800R registered ECC modules. Before installation, power down the system, disconnect power sources, and follow standard electrostatic discharge (ESD) precautions. Align the module with the slot key, press evenly until the retention clips engage, then power on the system and verify detection in the BIOS/UEFI or server management interface. When populating multiple modules, consult the server or motherboard documentation for supported memory population rules and channel balancing.

Usage recommendations

Use this module in systems that explicitly list support for PC3-12800R registered ECC memory. For best results, match modules by capacity, rank, and speed when populating multiple slots, and follow vendor guidance for supported memory configurations to ensure stability and optimal performance.