HP ProDesk 490 G2 Quickspecs page 43

QuickSpecs
Technical Specifications – Memory
System Memory Support
The HP ProDesk 490 G2 Business PC supports the 4
architecture, the processor is designed for a two-chip platform consisting of a processor and Platform Controller Hub (PCH). Unlike
previous generations, the 4
DDR3/DDR3L protocols with two independent, 64-bit wide channels each accessing one or two DIMMs.

Two channels of non-ECC DDR3/DDR3Lunbuffered 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:
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
o
Platform Memory Support

Microtower (MT) platforms support up to four (4) industry-standard DDR3-SDRAM DIMMs.
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.
th
generation Intel® Core™ processor family. Based on a new PC micro-
th
generation Intel® Core™ processor includes an Integrated Memory Controller (IMC). The IMC supports
Worldwide — Version 1.8— May 22, 2014
HP ProDesk 490 G2 Microtower Business PC
Page 43