Enterprise-III EISA VLB Motherboard User's Guide
117
Programming the Flash EPROM,
Continued
Before Beginning Flash Programming
Perform the following steps before programming the Flash EPROM.
Step
Action
1
Turn system power off.
2
Place a Shorting Link on J2.
3
Place the floppy disk that has the latest S68P.ROM BIOS file in
floppy drive A:.
4
Make sure that the system has a speaker that is connected.
5
Turn system power on.
Sequence of Operation and Standard Beeps
During normal operation, the Boot Block code produces a series of beeps, keyed to the operation of the Boot Block Code.
The Boot Block code beeps to:
• signify completion of a step (as shown on the previous page), and
• when there is an error.
The following table lists the sequence of operation and the expected behavior of the Boot Block Code.
Step
Expected behavior
1 Look for the floppy disk.
The system beeps one time before the BIOS attempts to
read from floppy drive A:.
2 Look for S68P.ROM on
the floppy disk.
The BIOS searches for S68P.ROM in the root directory of
the floppy disk in drive A:. It does not beep if this step is
completed successfully.
3 Read the floppy disk.
The BIOS reads the floppy disk. It does not beep if this step
is completed successfully.
4 Check for BIOS file size.
The BIOS checks the BIOS file size. It does not beep if this
step is completed successfully.
5 Check for Flash
EPROM.
The BIOS looks for an Intel i28F001BX-T Flash EPROM. It
does not beep if this step is completed successfully.
6 Erase the Flash
EPROM.
Two beeps sound when the BIOS begins erasing the Flash
EPROM.
7 Program the Flash
EPROM.
Three beeps sound when the Boot Block Code begins
reprogramming the the Flash EPROM.
8 Continue programming
the Flash EPROM.
Four beeps sound when reprogramming has been
successfully completed.
9 Boot Block BIOS resets
the CPU.
A CPU reset is generated (the system reboots).
Make sure
you remove the shorting link from J2 at this point.
10 Manually reboot the
system.
Reboot the system.
Error Beep Codes