Compaq 164SX user manual Fail-Safe Booter, Proceed to .4 and follow the procedures

Fail-Safe Booter

Table 8–2 Post Codes		(Sheet 3 of 3)
	Post Code
Source	(hex)	Description
	BF	Fail-safe booter is scanning the diskette

1Fail-safe booter is loading the AlphaBIOS

2Fail-safe booter is loading the Debug Monitor

3Fail-safe booter is loading the SRM console

4Fail-safe booter is loading the Linux mini-loader

8.4Fail-Safe Booter

The fail-safe booter provides an emergency recovery mechanism when the primary firmware image contained in flash memory has been corrupted. When flash memory has been corrupted, and no image can be loaded safely from the flash, you can run the fail-safe booter and boot another image from a diskette that is capable of repro- gramming the flash.

Starting the Fail-Safe Booter

You can start the fail-safe booter in one of two ways:

•If the primary firmware image is unavailable when the system is powered on or reset, the fail-safe booter runs automatically. When the fail-safe booter runs, the system emits a series of beeps through the speaker as beep code 1-2-3; that is, one beep and a pause, followed by two beeps and a pause, followed by three beeps. After the diskette activity light flashes, insert the AlphaPC 164SX SRM Console Firmware diskette. The fail-safe booter will load and run the AlphaBIOS firmware update utility from this diskette. Proceed to Section 7.4 and follow the procedure for updating your flash ROM.

•You can also start the fail-safe booter manually as follows:

1.Power off your system.

2.Slide switch CF7 to off, as described in Section 3.3.

3.Power on your system.

4.Insert the AlphaPC 164SX SRM Console Firmware diskette into the diskette drive.

5.Proceed to Section 7.4 and follow the procedures.

8–4Troubleshooting