======================================================================
Title:    Boot Block Recovery Procedure - Micronics M54Li Motherboard
----------------------------------------------------------------------
Filename: M54LIREC.TXT
Author:   Terry Slade, Micro Firmware Technical Support
Revision: 07/22/97
======================================================================

The boot block recovery code resides in a protected area of the flash
chip. This code checks for a working BIOS on every boot and will only
attempt to install a BIOS from diskette if the BIOS in the flash chip
is corrupt or missing. A black screen on powerup may indicate the
absence of a working BIOS in the flash chip.

This procedure requires a valid recovery disk, normally created during
installation of a flash BIOS upgrade.

A BIOS recovery disk for this motherboard is available on our BBS, FTP
site, or web site. The file M54LIRD.EXE contains a self-extracting
diskette image of a recovery disk which will install M-M54Li-12PM.

NOTE: The boot block code on this board will not run if there are only
2 SIMMs installed in bank 0. It will work with 4 SIMMs installed or if
2 SIMMs are installed in bank 1.

----------------------------------------------------------------------
Boot Block Recovery Procedure:
.
1. Turn system off.

2. Do not move the boot block recovery jumper (W21). W21 should remain
   on pins 1-2. (This jumper would be used with an older type of boot
   block code, which was not used on this motherboard).
   There are pads present for a jumper (J8) to write-protect the
   flash chip. This jumper is not present on the boards we have seen.
   If pins are present at J8 (located just behind the clock chip),
   there should be no jumper installed in order to enable writing to 
  the flash chip.

3. Insert recovery disk.

4. Turn system on. After 15 to 25 seconds, the speaker will sound one
   long and two short beeps. The display screen will remain blank.
   The diskette drive light will come on, there will be another beep.
   In about 30 seconds, there will be four beeps to indicate that the
   process is finished. 

5. Power system off and back on. The BIOS signon text should display.
   It will probably be necessary to enter CMOS setup and adjust
   setup values.
.
Some video cards (ISA or PCI) may prevent the boot block recovery
procedure from working. If there are no beeps and the diskette drive
is not accessed, it may be necessary to remove a video card. The boot
block procedure will work without a video card. We can supply a
replacement flash chip if needed.

======================================================================
======================================================================
(C) 1997 Micro Firmware, Inc.