Populating Sodimm Sockets; Installing Sodimms - HP ProOne 400 G1 Maintenance & Service Manual

Populating SODIMM sockets

The system will automatically operate in single channel mode, dual channel mode, or flex mode,
depending on how the SODIMMs are installed. Refer to the following table to identify the SODIMM
channel locations.
Location
Lower Socket
Upper Socket
The system will operate in single channel mode if the SODIMM sockets are populated in one
●
channel only.
The system will operate in flex 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 flex 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.
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.
In any mode, the maximum operational speed is determined by the slowest SODIMM in the
●
system.

Installing SODIMMs

There are two memory sockets on the system board. To remove or install memory modules:
1.
Prepare the computer for disassembly (see
2.
Remove the rear cover (see
3.
Remove the VESA panel (see
58 Chapter 5 Removal and Replacement Procedures All-in One (AIO) Chassis
System board label
SODIMM1
SODIMM3
Preparing to disassemble the computer on page
Rear cover on page 30).
VESA panel on page
Channel
Channel A
Channel B
55).
27).