Configuring Powered Serial Ports; Replacing The Riser Card - HP RP5 Retail System Hardware Reference Manual

Configuring Powered Serial Ports

The serial ports can be configured as standard (non-powered) serial ports or powered serial ports.
Some devices use a powered serial port. If the serial port is configured as a powered port, devices
that support a powered serial interface do not require an external power source.
NOTE: The computer ships with all serial ports configured in standard serial mode by default unless
the powered serial port AV numbers are ordered.
The serial ports can be configured using the Computer F10 Setup utility. Under the Onboard
Devices menu, you are given the option to select the following three settings for each individual serial
port (port A, B, if available C, and D):
●
Standard
●
5v on pins 1 and 9
●
12v on pins 1 and 9
NOTE: To access the Computer F10 Setup utility, restart the computer and press the
soon as the HP logo screen is displayed (before the computer boots to the operating system).

Replacing the Riser Card

There are two riser cards available from HP for this product. One has two PCI slots and the other has
two PCI Express x1 slots. Both cards have a slot designated for the Powered Serial Port expansion
card. You can purchase either card as a replacement from HP.
To replace the riser card:
1. Remove/disengage any security devices that prohibit opening the computer.
2. Remove all removable media, such as optical discs or USB flash drives, from the computer.
3. Turn off the computer properly through the operating system, then turn off any external devices.
4. Disconnect the power cord from the power outlet and disconnect any external devices.
CAUTION:
as long as the system is plugged into an active AC outlet. You must disconnect the power cord
to avoid damage to the internal components of the computer.
5. If the computer is on a stand, remove the computer from the stand.
6. Remove the computer access panel.
32 Chapter 2 Hardware Upgrades
Regardless of the power-on state, voltage is always present on the system board
F10 key as