Micronics M5Pi System Board Manual

Beep code

ContentsDescription

 

Port 80h

 

 

 

 

None

01h

CPU register test in progress.

 

 

 

1-1-3

02h

CMOS read/write failure.

 

 

 

1-1-4

03h

ROM BIOS check failure.

 

 

 

1-2-1

04h

Programmable interval timer failure.

 

 

 

1-2-2

05h

DMA initialization failure.

 

 

 

1-2-3

06h

DMA page register write/read failure.

 

 

 

1-3-1

08h

RAM refresh verification failure.

 

 

 

None

09h

First 64K RAM test in progress.

 

 

 

1-3-3

0Ah

First 64K RAM chip or data line failure (multi-bit).

 

 

 

1-3-4

0Bh

First 64K RAM odd/even logic failure.

 

 

 

1-4-1

0Ch

Address line failure first 64K RAM.

 

 

 

1-4-2

0Dh

Parity failure first 64K RAM.

 

 

 

2-1-1

10h

Bit 0 first 64K RAM failure.

 

 

 

2-1-2

11h

Bit 1 first 64K RAM failure.

 

 

 

2-1-3

12h

Bit 2 first 64K RAM failure.

 

 

 

2-1-4

13h

Bit 3 first 64K RAM failure.

 

 

 

2-2-1

14h

Bit 4 first 64K RAM failure.

 

 

 

2-2-2

15h

Bit 5 first 64K RAM failure.

 

 

 

2-2-3

16h

Bit 6 first 64K RAM failure.

 

 

 

2-2-4

17h

Bit 7 first 64K RAM failure.

 

 

 

2-3-1

18h

Bit 8 first 64K RAM failure.

 

 

 

2-3-2

19h

Bit 9 first 64K RAM failure.

 

 

 

2-3-3

1Ah

Bit 10 first 64K RAM failure.

 

 

 

2-2-4

1Bh

Bit 11 first 64K RAM failure.

 

 

 

2-3-1

1Ch

Bit 12 first 64K RAM failure.

 

 

 

2-4-2

1Dh

Bit 13 first 64K RAM failure.

 

 

 

 

 

 

B-2