Filter
Top Products
Power-on diagnostic error tone codes (continued)
or data line failure-bit 0
First 64KB RAM or data line failure-bit 1
I 2-1-3
1
First 64KB RAM or data line failure-bit 2
I
1
2-1-4
1
First 64KB RAM or data line failure-bit 3
I
2-2-l
2-2-2
First 64KB RAM or data line failure-bit 4
First 64KB RAM or data line failure-bit 5
1 2-2-3
2-2-4
2-3-l
2-3-2
First 64KB RAM or data line failure-bit 6
First 64KB RAM or data line failure bit 7
First 64KB RAM or data line failure-bit 8
. .
First
64KB
RAM or data line failure-bit 9
/
2-3-3
’
First 64KB RAM or data line failure-bit A
I
2-3-4
First 64KB RAM or data line failure-bit B
2-4-l First 64KB RAM or data line failure-bit C
2-4-2
First 64KB RAM or data line failure-bit D
2-4-3
First 64KB RAM or data line failure-bit E
2-4-4
First 64KB RAM or data line failure-bit F
3-l-l Slave DMA register test failure
3-1-2
Master DMA register test failure
3-1-3
.-
Master interrupt mask register test failure
3-l -4
Slave interrupt mask register test failure
i
3-2-4 Keyboard controller test failure
)
3-3-4
1
Video memory test failure
I
Display initialization test failure
Display retrace test failure
’
Timer tick interrupt test failure
hidown
test failure
4-2-3
Gate A20 failure
4-2-4
Unexpected interrupt in protected mode
C-4
Troubleshooting