User`s guide

Safety Warnings 137
D Servicing the Electronics Bay
Adding or Replacing PCI Cards
CAUTION
Remove the AC power cords from the system. Damage to the system can occur if AC power is
not disconnected from the system prior to removal or installation of the PCI riser assembly.
The PCI riser assembly contains the following active components:
• One server I/O Hub (SIOH) component of the E8870 chip set
• One P64H2 PCI-X bridge component
• Three non-hot-plug able PCI-X slots
 One 64-bit, 133 MHz PCI-X, full length
 Two 64-bit, 100 MHz PCI-X, full length
• An integrated DC-to-DC voltage converter
• Server management logic
• I
2
C logic
 Field Replaceable Unit (FRU) device ID ROM
 Temperature sensor
The PCI riser assembly needs to be removed from the chassis in order to add or remove PCI
cards. Refer to the following instructions.
Removing the PCI Riser Assembly
To remove the PCI riser assembly from the chassis, refer to Figure 61 and follow these
instructions:
1. See the warnings and cautions under Removing and Installing the Top Cover on page 126 .
2. Turn off all peripheral devices connected to the system.
3. Power down the system by pressing and holding the power button on the front panel for
several seconds. Unplug both AC power cords to remove standby power from the server.
4. Follow the instructions under Removing the Top Cover.
5. Disconnect all peripheral cables attached to adapters that are installed in the PCI riser
assembly.
6. Firmly grasp the riser release mechanism lever and slowly pull up and back on the lever.
Some force may be required. See letter “A” in Figure 61. The riser assembly will
disengage from the main board.
7. Lift the riser assembly straight up to remove it from the chassis. See letter “B” in the
figure.
CAUTION
When removing the riser assembly, do not attempt to remove it at an angle. Removal
at any other orientation other than vertical could result in damage to the VHDM
connectors.