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General information on Philips and related computers,and POST codes .
Philips/Magnavox/Headstart
??Philips, Magnavox, and HeadStart use motherboards designed by Philips Home Electronics in Montreal. Most use a Philips-designed BIOS, although at least one of their portables uses one from Award Software. The beep pattern consists of a series of long and short beeps that correspond to the binary representation of the POST code where leading zeroes are omitted; a zero means a short and a one means a long beep. The various Philips platforms do not all execute the same POST tests.
Philips Platform Cross Reference

Platfom

CPU

System Model/Name

Avenger

80286

Magnavox MaxStation 286, Magnum GL; Headstart Series 300

P3212

80286

Magnavox MaxStation 480, Headstart System 380

P 3239

80286

80386SX

Magnavox Headstart/Maxstation/Magnum/Professional 1200, 48CD, 1600, 64CD, P160, SR16CD

P 3349

80386SX-20

Magnavox Headstart/Maxstation/Magnum/Professional SX20, 80CD

P3345

80386SX

Magnavox Maxstation 386SX, Magnum SX; Headstart Series 500

P33711

80386DX

Headstart/Maxstation/Magnum/Professional 3300

Philips POST Codes

Code

Beeps 0=sh 1=lg

Meanings (Port 80)

0A

1010

DMA page register write/read bad

10

1 0000

CMOS RAM read/write error (only after hard reset)

11

1 0001

System ROM BIOS checksum error

12

1 0010

Timer A error

13

1 0011

DMA controller A error

14

1 0100

DMA controller B error

15

1 0101

Memory refresh error

16

1 0110

Keyboard controller error

17

1 0111

Keyboard controller error

19

1 1001

Keyboard controller error

1C

1 1100

Base 64K RAM error

1D

1 1101

Base 64K RAM parity error

1F

1 1111

Orvonton LSI sync missing

21

10 0001

PVAM register error

25

10 0101

System options error

2B

10 1011

Video sync error (incorrect switch setting or CMOS RAM?arun SETUP)

2C

10 1100

Video BIOS ROM error

2D

10 1101

Monochrome/color configuration error

2E

10 1110

No video memory

35

11 0101

Interrupt controller error

36

11 0110

Byte swapper error

37

11 0111

NMI error

38

11 1000

Timer interrupt

39

11 1001

LSI timer halted

3A

11 1010

Main memory test error

3B

11 1011

Keyboard error

3C

11 1100

Keyboard interrupt error (only after hard reset)

3D

11 1101

DDNIL scan halted, cache disabled

40

100 0000

Diskette error

48

100 1000

Adapter card error

4c

100 1100

CMOS battery/checksum error (run SETUP)

4D

100 1101

System options error (run Setup)

52

101 0010

Keyboard controller error

6A

110 1010

Failure shadowing BIOS ROM

70

111 0000

Memory size configuration error (run SETUP)

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