====================================================================== 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.