HP Pavilion Ultimate d4900 - Desktop PC, Manual

Removing a Memory Module 

1

Complete the procedures to prepare the PC, and to 
remove the side panel. See “Opening and Closing 
the PC“ on page 1. 

2

Gently lay the PC on its side. 

3

Locate the memory module sockets on the 
motherboard. 

CAUTION: When handling a memory 
module, be careful not to touch any of 
the contacts. Doing so may damage the 
module. 

4

Move any cabling out of the way, if necessary. 

5

Push down the two retaining clips on the ends of 
the memory socket until the memory module pops 
out of the socket. 

WARNING: Do not pull the memory 
module out of the socket. Use the 
retaining clips to eject the module. 

6

Lift the memory module from the memory socket. 

Installing a Memory Module 

Upgrade the memory in your PC with memory of the 
same type and speed as the memory originally 
installed in your PC. 

CAUTION: When handling a memory 
module, be careful not to touch any of the 
contacts. Doing so may damage the 
module. 

1

Open both latches of the memory module socket: 

•

If you are 

replacing

 a memory module, put the 

new memory module in the same memory slot 
from which the old memory was removed. 

Or 

•

If you are 

adding

 a memory module, install the 

new module into the socket nearest the 
preinstalled module, and install additional 
modules in the next available sockets. 

2

The memory module can be installed in only one 
way. Match the notch on the module with the tab 
on the memory socket. Push the module carefully 
and firmly into the slot, ensuring that the latches on 
both ends snap into place. 

3

Set the chassis upright. 

4

Complete the procedures to replace the side panel, 
and close the PC. See “Opening and Closing the 
PC“ on page 1. 

NOTE:

 If your computer shows a blank screen after 

you replace or add a memory module, the memory is 
installed incorrectly, or it is the wrong type of memory. 
Remove and reinstall the memory module. 

8

    Upgrading and Servicing Guide