Populating Sodimm Sockets; Installing Sodimms - HP ProOne 600 Hardware Reference 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.
Table 2-2 Identifying SODIMM 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.
Remove all removable media, such as compact discs or USB flash drives, from the computer.
2.
Turn off the computer properly through the operating system, then turn off any external devices.
3.
Disconnect the power cord from the power outlet and disconnect any external devices.
CAUTION:
power to drain 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 into an
active AC outlet. Adding or removing memory modules while voltage is present may cause
irreparable damage to the memory modules or system board.
4.
Remove/disengage any security devices that prohibit opening the computer.
5.
Place the computer face down on a soft flat surface. HP recommends that you set down a blanket,
towel, or other soft cloth to protect the bezel and screen surface from scratches or other damage.
System board label
SODIMM1
SODIMM3
You must disconnect the power cord and wait approximately 30 seconds for the
Channel
Channel A
Channel B
Removing and installing memory
29