HP EliteDesk 800 G2 Desktop Mini, HP EliteDesk 705 G2 Desktop Mini, HP ProDesk 600 G2 Desktop Mini, HP ProDesk 400 G2 Desktop Mini, HP MP9 G2 Retail System - Maintenance and Service Guide

HP oers upgrade memory for this computer and advises that the consumer purchase it to avoid compatibility
issues with unsupported third-party memory.
Populating SODIMM sockets
There are two SODIMM sockets on the system board, with one socket per channel. The sockets are labeled
DIMM1 and DIMM3. The DIMM1 socket operates in memory channel B. The DIMM3 socket operates in memory
channel A.
Item Description System Board Label Socket Color
1 SODIMM1 socket, Channel B DIMM1 Black
2 SODIMM3 socket, Channel A DIMM3 Black
The system will automatically operate in single channel mode, dual channel mode, or ex mode, depending on
how the SODIMMs are installed.
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The system will operate in single channel mode if the SODIMM sockets are populated in one channel only.
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The system will operate in a higher-performing dual channel mode if the memory capacity of the SODIMM
in Channel A is equal to the memory capacity of the SODIMM in Channel B.
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The system will operate in ex mode if the memory capacity of the SODIMM in Channel A is not equal to the
memory capacity of the SODIMM in Channel B. In ex mode, the channel populated with the least amount
of memory describes the total amount of memory assigned to dual channel and the remainder is assigned
to single channel. If one channel will have more memory than the other, the larger amount should be
assigned to channel A.
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In any mode, the maximum operational speed is determined by the slowest SODIMM in the system.
40 Chapter 4 Removal and replacement procedures – desktop mini (DM) chassis