Toshiba PORTEGE R300 Maintenance Manual page 223

(f) Beep Volume
This option selects the volume of beep (Warning). "OFF", "Low", "Medium"
(Default) or "High" can be selected. If a memory module that does not comply
with the standards, the computer beeps at maximum volume.
(g) Diagnostic Mode
This option sets whether the BIOS Setup Diagnostic test is enabled.
Disabled
Enabled
8. Configuration
This option displays the configuration method.
(a) Device Config.
The devices are initialized when the PNP OS loads.
Setup by OS
All Devices
If you are using an OS that does not have PNP capacity, select "All Devices."
The Display shows the following message:
Device Config. = All Devices
9. Drives I/O
This option displays the address/interrupt level for hard disk drive and optical drive.
It is only for information and cannot be changed.
(a) Built-in HDD
This option displays the setting of the address and interrupt level of the HDD.
This cannot be changed.
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The Diagnostic test is disabled. (Default)
The Diagnostic test is enabled.
Initializes devices, which is needed to load an operating
system. Operating system initializes other devices.
(Default)
All devices will be initialized.
3 Tests and Diagnostics
[CONFIDENTIAL] 3-103