NF520D3
25
5.5 T
ROUBLESHOOTING
Probable Solution
1.
There is no power in the system.
Power LED does not shine; the
fan of the power supply does not
work
2.
Indicator light on keyboard does
not shine.
1.
Make sure power cable is
securely plugged in.
2. Replace
cable.
3.
Contact technical support.
System is inoperative. Keyboard lights
are on, power indicator lights are lit,
and hard drives are running.
Using even pressure on both ends of
the DIMM, press down firmly until the
module snaps into place.
System does not boot from a hard disk
drive, but can be booted from optical
drive.
1.
Check cable running from disk to
disk controller board. Make sure
both ends are securely plugged
in; check the drive type in the
standard CMOS setup.
2.
Backing up the hard drive is
extremely important. All hard
disks are capable of breaking
down at any time.
System only boots from an optical
drive. Hard disks can be read,
applications can be used, but system
fails to boot from a hard disk.
1.
Back up data and applications
files.
2.
Reformat the hard drive.
Re-install applications and data
using backup disks.
Screen message shows “Invalid
Configuration” or “CMOS Failure.”
Review system’s equipment. Make sure
correct information is in setup.
System cannot boot after user installs a
second hard drive.
1.
Set master/slave jumpers
correctly.
2.
Run SETUP program and select
correct drive types. Call the drive
manufacturers for compatibility
with other drives.
