Sonnet Technologies Encore_MDX G4 Duet Dual Processor Upgrade Card - Manual (Page 5)

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This section covers the installation of the Encore/MDX G4 Duet into
all Power Mac G4 Mirrored Drive Doors (MDD) models. If you are
installing this product into an Xserve server with a tray load CD mech-
anism, skip to page 7. If you are installing this product into an Xserve
with a slot load CD mechanism, skip to page 10.
Shut Down and Open Computer
1. Shut down your Power Mac. If the computer has been on for a
while, allow a few minutes for it to completely cool before begin-
ning the installation.
2. If you need to move the computer to a different area where you
can work freely, disconnect any connected cables, move the com-
puter, then reconnect the power cord to the computer and an
electrical outlet.
3. Touch a port access cover on the back of the computer (Figure 3)
to discharge any potentially damaging static electricity.
4. Disconnect the power cord, and if necessary, any remaining
cables, from the computer.
5. With the right side of the case facing you, open your Power Mac
by lifting the release latch and lowering the side panel away from
the computer’s case
(Figure 4).
Remove Heat Sink
1. Locate the processor heat sink on the logic board (Figure 5);
your heat sink may appear different from what is pictured.
2. Locate the four screws securing the processor heat sink in place
(Figure 5). Using caution to avoid touching the logic board with
the screwdriver, carefully remove the screws and set them aside
for use in installing the Duet card.
3. Lift the heat sink straight up and out of the computer, taking care
not to touch the DIMMs. Set aside the heat sink with its top face
down.
4. Note how the edge of the processor card is inserted into the sup-
port bracket (Figure 6).
Figure 5
Figure 4
Figure 3
port access
cover
side panel
raise release latch
heat sink
Installation—Mirrored Drive Doors Models
WARNING: When handling computer products, take care to
prevent components from being damaged by static electricity;
avoid working in carpeted areas. Handle processor upgrade cards only
by their edges and avoid touching connector traces and component
pins. Also, avoid touching the logic board and any of its components.
Support Note: To avoid generating a static charge in your
body, do not walk around the room until after you finish
installing the Encore card and close the computer.
Po
we
r M
ac
G
4
(M
DD
)
M
od
el
s
Figure 6
screw
screw
screw screw
support bracket
processor
card