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Chapter 5: Setup 5-5
Setting Memory Shadow
The default setting enables memory shadow. This can increase your
workstation's performance. This applies only if your workstation has a
plug-in video board. If you want to disable the memory shadowing,
perform the following steps:
1. Move the cursor to the Memory Shadow field on the Main menu and
press Enter. The Memory Shadow menu appears.
2. Select Disabled in the Video Shadow field to disable the video
shadow.
3. Move the cursor to the Exit menu, select Exit Saving Changes or Save
Changes, and press Enter.
Setting Boot Options
To set boot options, perform the following steps:
1. Move the cursor to the Boot menu. The list of boot devices displays.
2. Select the sequence of drives that the workstation will access when
booting the system.
3. Move the cursor to the Exit menu, select Exit Saving Changes and
press Enter.
Allocating Interrupts
On the 7401, limited control of interrupt allocation is provided through
the BIOS Setup Utility. Due to the nature of the PCI bus, the Plug and
Play subsystem allocates the interrupts of PCI devices using all
available interrupts.
To free IRQ15, it is necessary to disable the secondary IDE bus. To do
this, in the Advanced menu, choose Primary in the Local BUS IDE
adapter selection.
To free IRQs 4, 3, or 7, in the I/O Device Configuration selection, disable
COM A, COM B, or the Parallel port, respectively.