Diagnostic Lights - Dell OptiPlex 330 Quick Reference Manual

N O T A B O O T D I S K E T T E
computer.
USB O V E R C U R R E N T E R R O R
power source for the USB device.
A R D
NOTICE - H
P A R A M E T E R H A S E X C E E D E D I T S N O R M A L O P E R A T I N G R A N G E
R E C O M M E N D S T H A T Y O U B A C K U P Y O U R D A T A R E G U L A R L Y
O F R A N G E M A Y O R M A Y N O T I N D I C A T E A P O T E N T I A L H A R D D R I V E P R O B L E M
S.M.A.R.T error, possible HDD failure. This feature can be enabled or disabled in
BIOS setup.

Diagnostic Lights

CAUTION:
safety instructions located in the Product Information Guide.
To help you troubleshoot a problem, your computer has four lights labeled 1,
2, 3, and 4 on the front or back panel. The lights can be off or green. When
the computer starts normally, the patterns or codes on the lights change as
the boot process completes. When the computer starts normally, the patterns
or codes on the lights change as the boot process completes. If the POST
portion of system boot completes successfully, all four lights display solid
green. If the computer malfunctions during the POST process, the pattern
displayed on the LEDs may help identify where in the process the computer
halted.
NOTE:
The orientation of the diagnostic lights may vary depending on the system
type. The diagnostic lights can appear either vertical or horizontal.
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Quick Reference Guide
— Insert a bootable floppy disk and restart your
— Disconnect the USB device. Use an external
R I V E
D SE LF M ON I T OR I N G S Y ST E M
Before you begin any of the procedures in this section, follow the
H A S R E P O R T E D T H A T A
E L L
. D
. A P A R A M E T E R O U T
—