HP Pro 3420 Maintenance & Service Manual page 60

The DDR3-SDRAM SODIMMs must also:
●
support CAS latency 9 DDR3 1333 MHz (9-9-9 timing)
●
contain the mandatory Joint Electronic Device Engineering Council (JEDEC) specification
In addition, the computer supports:
●
512-Mbit, 1-Gbit, and 2-Gbit non-ECC memory technologies
●
single-sided and double-sided SODIMMS
●
SODIMMs constructed with x8 and x16 devices; SODIMMs constructed with x4 SDRAM are not
supported
NOTE: The system will not operate properly if you install unsupported SODIMMs.
To remove a memory module:
1. Prepare the computer for disassembly (see
on page
2. Remove the rear cover (see
3. Remove the system board cover (see
4. To remove a memory module, press outward on the two latches on each side of the SODIMM
(1), allow the module to lift up to about a 45-degree angle, and then pull the SODIMM out of the
socket (2).
Figure 7-21
The computer automatically recognizes the additional memory when you turn on the computer.
52 Chapter 7 Removal and Replacement Procedures All-in One (AIO) Chassis
33).
Rear Cover on page
Removing a memory module
Preparing to Disassemble the Computer
34).
System Board Cover on page 49).