Removing The System Board - Dell ChengMing 3977 Tower Owner's Manual

17 PCI Connector (SLOT3 and SLOT4)
19 PCI-e X16 Connector(SLOT1)

Removing the system board

1 Follow the procedure in
2 Remove the:
a cover
b front bezel
c 3.5 inch hard drive
d 2.5 inch hard drive
e optical drive
f cooling shroud
g power supply unit
h speaker
i heat sink
j memory module
k expansion card
l coin cell battery
m processor
3 To remove I/O panel cover:
a Remove the screw (6-32xL6.35) that secures the I/O panel cover to the computer [1].
b Slide the I/O panel cover [2].
22 Removing and installing components
Before working inside your
18 PCI-e X1 Connector(SLOT2)
computer.