Maintenance  50 
3. 
Remove the two screws securing the option card and slide the card out. 
 
To replace the component, reverse the removal procedure. 
 
  NOTE: Replacing the option card might require power protector software to be restarted or 
reconfigured. 
 
 
Updating the UPS firmware 
To update the UPS firmware, see the HP website (http://www.hp.com/go/rackandpower). 
 
Configuring a USB to serial converter 
 
  NOTE: This procedure was tested on the Windows
®
 XP Professional, Windows Server
®
 2003, 
and Windows
®
 Vista Enterprise operating systems using the HP USB to serial converter (part 
number 304098-001). Depending on your system configuration, a driver download might be 
required to successfully install the converter. The driver can be downloaded from the USB-Drivers 
website (http://www.usb-drivers.com/drivers/123/123294.htm). 
 
To configure a USB port to the COM 1 port on systems that do not have available serial ports: 
1.  Connect the USB to serial converter to the USB port on your system. 
2.  For Windows Vista, click Start, select Control Panel, double-click System and Maintenance, and then 
skip to step 4. 
-or- 
For Windows XP, click Start, select Control Panel, click Performance and Maintenance, and then click 
System. 
-or- 
For Windows Server, click Start, select Control Panel, and then double-click System. 
3.  Click the Hardware tab. 
4.  Click Device Manager. The Device Manager screen appears.