Datasheet

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HP ProDesk 400 G1 Business Series Desktop

Technical Specifications – Memory

Americas — HP ProDesk 400 G1 Business Series Desktop - December 2014 - c04405864

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System Memory Support

The HP ProDesk 400 G1 Business PC supports the 4

generation Intel® Core™ processor family. Based on a new PC micro-

architecture, the processor is designed for a two-chip platform consisting of a processor and Platform Controller Hub (PCH). Unlike

previous generations, the 4

generation Intel® Core™ processor includes an Integrated Memory Controller (IMC). The IMC supports

DDR3/DDR3L protocols with two independent, 64-bit wide channels each accessing one or two DIMMs or SODIMMs.

 Two channels of non-ECC DDR3/DDR3L unbuffered dual in-line memory modules (UDIMM) or DDR3/DDR3L unbuffered

small outline dual in-line memory modules (SO-DIMM) with a maximum of two DIMMs per channel

 Single-channel and dual-channel memory organization modes

 Data burst length of eight for all memory organization modes

 Memory data transfer rates of up to 1600 MT/s; actual supported data transfer rate determined by the configured

processor.

 64-bit wide channels

 DDR3/DDR3L system memory I/O voltage of 1.5V

 Theoretical maximum memory bandwidth of:

o 21.3 GB/s in dual-channel mode assuming 1333 MT/s

o 25.6 GB/s in dual-channel mode assuming 1600 MT/s

Platform Memory Support

 The Small Form Factor (SFF) and Microtower (MT) platforms support up to two (2) industry-standard DDR3-SDRAM DIMMs.

 The Desktop Mini (DM) platform supports up to two (2) industry-standard DDR3-SDRAM SODIMMs.

CAUTION: You must shut down the computer and disconnect the power cord before adding or removing memory modules. Regardless of the

power-on state, voltage is always supplied to the memory modules as long as the computer is plugged in to an active AC outlet. Adding or

removing memory modules while voltage is present may cause irreparable damage to the memory modules or system board.

NOTE: For systems configured with more than 3 GB of memory and a 32-bit operating system, all memory may not be available due to system

resource requirements.

Addressing memory above 4 GB requires a 64-bit operating system.