Table 1-2. System-Board Jumper and Switch
Jumper/Switch
Setting
FLOPPY 1
VIDEO SLEEP
PWR CTRL
RESERVED
jumpered
Descriptions (continued)
Description
(Dell
Enables 1.44-MB diskette drive
default)
size or autodetection. Disables
2.88-MB size detection.
Enables forced 2.88-MB diskette
drive size detection.
Video Sleep Register resides at
03C3H.
(default)
Video Sleep Register resides at
46E8H.
Disables RTC power supply
control.
(default)
Enables power supply control
using RTC.
Reserved (do not change).
unjumpered
System Overview
1-19