Dell Dimension V400 Service Manual page 67

To remove or install a Celeron single-edge processor package (SEPP) or a
Pentium II single-edge contact (SEC) cartridge and heat sink, follow these
steps:
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1. Remove the computer cover and support beam as described in "Computer
Cover and Support Beam."
2. Remove the fan shroud by pressing its two tabs (see Figure 4-22) and gen-
tly lifting the shroud until it clears the fan and guide bracket assemblies.
Set the fan shroud aside.
fan shroud tabs (2)
SEC cartridge release latches (2)
SEC cartridge
fan assembly
guide bracket assembly latch
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3. For a Pentium II processor, press the SEC cartridge release latches until
they snap into place.
fan shroud
SEPP
heat sink
guide bracket
assembly
Removing and Replacing Parts 4-23