NF500 754
22
CHAPTER 5: USEFUL HELP
5.1 A
WARD
BIOS
B
EEP
C
ODE
Beep Sound
Meaning
One long beep followed by two short
beeps
Video card not found or v ideo card
memory bad
High-low siren sound
CPU overheated
System will shut down automatically
One Short beep when system boot-up No error found during POST
Long beeps every other second
No DRAM detected or install
5.2 E
XTRA
I
NFORMATION
A. BIOS
Update
After you fail to update BIOS or BIOS is invaded by virus, the
Boot-Block function will help to restore BIOS. If the following message
is shown after boot-up the system, it means the BIOS contents are
corrupted.
In this Case, please follow the procedure below to restore the BIOS:
1.
Make a bootable floppy disk.
2.
Download the Flash Utility “AWDFLASH.exe” from the Biostar
website:
www.biostar.com.tw
3.
Confirm motherboard model and download the respectively BIOS
from Biostar website.
4.
Copy “AWDFLASH.exe” and respectively BIOS into floppy disk.
5.
Insert the bootable disk into floppy drive and press Enter.
6. System will boo-up to DOS prompt.
7. Type
“Awdflash xxxx.bf/sn/py/r”
in DOS prompt.
8. System will update BIOS automatically and restart.
9. The BIOS has been recovered and will work properly.
