
SC836 Chassis Manual
5-6
Power Supply Cables
Name Number
Connects
to:
Description
20-pin or 24-pin
power cable
1
Mother-
board
20-pin or 24-pin power cable provides
electricity to the motherboard. Has twenty
to twenty-four yellow, black, gray, red,
orange, green and blue wires.
HDD (Hard
Drive) power
cable
3 Backplane
Each cable has three connectors (two
Hard Drive [HDD] Attach the HDD con-
nectors to the backplane.
8-pin mother-
board cable
1
Mother-
board
Provides power to the motherboard CPU.
This cable has two black and two yellow
wires.
4-pin mother-
board cable
1
Mother-
board
Provides power to PCI expansion card.
This cable has two black and two yellow
wires.
5-pin SMBus
power cable
(small)
1
Mother-
board
Allows the SM (System Management)
bus to monitor the power supply.
2-pin INT cable 1
Mother-
board
The intrusion detection cable allows the
system to log when the server chassis
has been opened.
3. Remove any packaging from the chassis. If the rear fans (set of two fans
nearest the I/O slots) or the air shroud are in place, remove them.
4. If required by your motherboard, install standoffs in any areas that do not
have a permanent standoff. To do this, place an optional hexagonal standoff
into the chassis and secure it with a screw. Compare the holes in the mother-
board to those in the chassis and add or remove standoffs as needed.
5. Lay the motherboard in the chassis, aligning the permanent and optional
standoffs.
6. Secure the motherboard to the chassis using the rounded, Phillips head
screws. Do not exceed eight pounds of torque when tightening down the
motherboard.
7. Secure the CPU(s) and heatsinks to the motherboard.
Power Supply Connections
Connect each of the following cables, as required, by your motherboard manufac-
turer. In some instances, some cables may not need to be connected.
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