HP Compaq Pro 4300 Maintenance & Serice Manual page 53

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 6-1 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 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.
●
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.
●
In any mode, the maximum operational speed is determined by the slowest SODIMM in the
system.
There are two memory sockets on the system board located behind the memory access panel. To
remove or install memory modules:
To remove a memory module:
1. Prepare the computer for disassembly (see
on page
2. 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 screen surface from scratches or other damage.
3. Remove the center access panel (see
4. Remove the memory access panel (see
46 Chapter 6 Removal and Replacement Procedures All-in One (AIO) Chassis
System Board Label
DIMM0
DIMM0
33).
Preparing to Disassemble the Computer
Hinge Cover Panel on page
Memory Access Panel on page
Channel
Channel B
Channel A
34).
36).