Dell OptiPlex E1 - Manual (Page 37)

Using the System Setup Program 2-9
For example, you may have a memory expansion card that needs to be addressed
starting at 15 MB. Selecting the 15M – 16M
option in the Reserved Memory option
specifies that the base memory from 15 to 16 MB come from the memory expansion
card (the base memory below the 15-MB address comes from the dual in-line memory
modules [DIMMs] on the system board).
The Reserved Memory option has the following settings:
‡
None Reserved (the default)
‡
512KB – 640KB
‡
15MB – 16MB
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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 resi-
dent microprocessor’s rated speed (the default setting) and a lower compatibility
speed, which lets you accommodate speed-sensitive applications. 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><#>.)
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Integrated Devices configures the devices integrated into the system board. Press
<Enter> to configure these devices.
6RXQG
Sound determines whether the integrated audio controller is On or Off.
1HWZRUN ,QWHUIDFH &RQWUROOHU
Network Interface Controller determines whether the integrated NIC is On, Off, or On
with PXE. The default is On with PXE, which means that the NIC is enabled and capa-
ble of booting the system remotely from a network server.
0RXVH 3RUW
Mouse Port enables or disables the system’s built-in Personal System/2 (PS/2)-
compatible mouse port. Disabling the mouse allows an expansion card to use
interrupt request (IRQ) 12.
For more information about built-in ports, port designations, IRQs, and the remapping
of ports, see “Connecting External Devices” in your online
System User’s Guide.