Dell Precision T7400 (Late 2007) - Manual (Page 177)

Adding and Replacing Parts 177
CAUTION: Fully-buffered memory modules may become very hot during normal
operation. Ensure that memory modules have had sufficient time to cool before you
touch them.
5 Press out the securing clip at each end of the memory module connector.
6 Grasp the module and pull up.
If the module is difficult to remove, gently ease the module back and forth
to remove it from the connector.
7 Replace the memory fan on the fan support structure.
1 memory fan 2 memory fan support
structure
2
1