2 Troubleshooting Procedures

Procedure 2 Debugging Port Check

Check the MiniPCI Debug board. The tool for debug port test is shown below.

Figure 2-2 A set of tool for debug port test

The test procedures are follows:

1.Replace Mini PCI debug port with Wireless LAN card, check LED in the Mini PCI debug board

The following is a list of the Test Point codes written to port 80h at the start of each routine, the beep codes issued for terminal errors, and a description of the POST routine. Unless otherwise noted, these codes are valid for Phoenix BIOS 4.0 Release 6.0.

NOTE: The following routines are sorted by their test point numbers were assigned in the BIOS code. Their actual order as executed during POST can

Be quite different.

Code Beeps POST Routine Description

02h

Verify Real Mode

03h

Disable Non-Maskable Interrupt (NMI)

04h

Get CPU type

06h

Initialize system hardware

08h

Initialize chipset with initial POST values

09h

Set IN POST flag

0Ah

Initialize CPU registers

0Bh

Enable CPU cache

0Ch

Initialize caches to initial POST values

0Eh

Initialize I/O component

0Fh

Initialize the local bus IDE

10h

Initialize Power Management

11h

Load alternate registers with initial POST values

12h

Restore CPU control word during warm boot

13h

Initialize PCI Bus Mastering devices

Satellite M300 and Satellite Pro M300 Maintenance Manual (960-Q08)

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Toshiba M300 manual Procedure 2 Debugging Port Check, A set of tool for debug port test

M300 specifications

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