Dell OptiPlex GX150 - Manual (Page 31)

l CPU Information
¡ CPU Speed indicates the processor speed at which your system boots.
Press the left- or right-arrow key to toggle the CPU Speed option between the resident microprocessor's rated speed (the default) and
a lower compatibility speed, which lets you accommodate speed-sensitive application programs. A change to this option takes effect
immediately (rebooting the system is not required).
To toggle between the rated processor speed and the compatibility speed while the system is running in real mode, press
<Ctrl><Alt><\>. (For keyboards that do not use American English, press <Ctrl><Alt><#>.)
¡ Bus Speed indicates the speed of the microprocessor's system bus, or front-side bus (FSB).
¡ Processor ID provides the manufacturer's identification code(s) for the installed microprocessor.
¡ Clock Speed indicates the core speed at which the microprocessor(s) operates.
¡ Cache Size displays the size of the microprocessor's level 2 (L2) cache.
l
Diskette Drive A and Diskette Drive B identify the type of diskette drives installed in your computer. With the standard cabling
configuration, Diskette Drive A (the boot diskette drive) is the diskette drive installed in the top externally accessible drive bay; Diskette
Drive B is a second diskette drive installed in any of the lower externally accessible drive bays.
The Diskette Drive A and Diskette Drive B options have the following possible settings:
¡ Optical, 360 KB
¡ Optical, 1.2 MB
¡ Diskette, 720 KB
¡ Diskette, 1.44 MB
¡ Not Installed
l Fastboot allows your system to boot in 10 seconds or less. The default setting is On. If you do not want your computer to skip certain
configurations and tests during boot, you may set this option to Off.
l Integrated Devices. This option configures the following devices integrated with the system board:
Press <Enter> to configure these options as explained in the following subsections.
¡ Sound determines whether the integrated audio controller is On or Off. The default is On.
¡ Network Interface Controller determines whether the integrated NIC is On, Off, or On w/ MBA. The default is On. If you select
On w/ MBA, you are prompted to press <Ctrl><Alt><b> at the Dell logo screen during system boot. A menu then appears that
allows you to select PXE, RPL, BootP, or NetWare as the active boot mode.
¡ Mouse Port enables or disables the system's integrated Personal System/2 (PS/2)-compatible mouse port. Disabling the
mouse allows an expansion card to use interrupt request (IRQ)12.
¡ Serial Port 1 and Serial Port 2 configure the system's integrated serial ports. You can set these options to Auto (the default) to
automatically configure a port, to a particular designation (COM1 or COM3 for Serial Port 1; COM2 or COM4 for Serial Port 2),
or to Off to disable the port.
If you set a serial port to Auto and add an expansion card containing a port configured to the same
designation, the system automatically remaps the integrated port to the next available port designation that
shares the same IRQ setting as follows:
- COM1 (input/output [I/O] address 3F8h), which shares IRQ4 with COM3, is remapped to COM3
(I/O address 3E8h).
- COM2 (I/O address 2F8h), which shares IRQ3 with COM4, is remapped to COM4 (I/O address
2E8h).
¡ Parallel Port configures the system's integrated parallel port. Press <Enter> to configure the Parallel Port options explained in
the following subsections.
Mode: You can set this option to PS/2, EPP, ECP, AT, or Off to disable the port. Set this option according to
the type of peripheral device connected to the parallel port. To determine the correct mode to use, see the
NOTE: When two COM ports share an IRQ setting, you can use either port as necessary, but you may not be able to use them both at
the same time. If you are running the Microsoft® Windows® 95 or IBM® OS/2® operating system, you cannot use both serial ports at
the same time. If the second port (COM3 or COM4) is also in use, the integrated port is turned off.