Dell Vostro 1000 Owner's Manual page 96

NOTICE:
To avoid electrostatic discharge, ground yourself by using a wrist
grounding strap or by periodically touching an unpainted metal surface (such as a
connector on the back of the computer).
3 If you are replacing a memory module, remove the existing module:
Use your fingertips to carefully spread apart the memory-module
a
securing clips on each end of the memory module connector until the
module pops up.
Remove the module from the connector.
b
1
1 memory module
NOTE:
If the memory module is not installed properly, the computer may not boot
properly. No error message indicates this failure.
4 Ground yourself and install the new memory module:
Align the notch in the module edge connector with the tab in the
a
connector slot.
Slide the module firmly into the slot at a 45-degree angle, and rotate
b
the module down until it clicks into place. If you do not feel the click,
remove the module and reinstall it.
96
Adding and Replacing Parts
2 memory-module securing
clips (2 per connector)
2