Dell Precision 410 Service Manual page 41

To perform the internal visual inspection, perform the following steps in the
sequence indicated.
While you work, periodically touch an unpainted metal surface on the
computer chassis to dissipate any static electricity that might harm inter-
nal components. Also avoid touching components or contacts on a card
and avoid touching pins on a chip.
To ensure that the chips are fully seated in their sockets, press firmly on
the top of each chip.
To reseat the microprocessor, remove and reinstall it as described in
"Microprocessor SEC Cartridge/Heat Sink Assembly" in Chapter 4
or 5.
To reseat a DIMM, remove it from its socket and reinstall it as described in
"DIMMs" in Chapter 4 or 5.
Basic Troubleshooting 2-5