Acer TravelMate 6460 Service Manual page 89

Beep Code
1-3-1-3 22h
1-3-2-1 24h
1-3-3-1 28h
1-3-3-3 2Ah
1-3-4-1 2Ch
1-3-4-3 2Eh
1-4-1-3 32h
1-4-2-1 34h
1-4-2-4 37h
1-4-3-1 38h
1-4-3-2 39h
1-4-3-3 3Ah
1-4-4-1 3Ch
1-4-4-2 3Dh
2-1-1-1 40h
2-1-1-3 42h
2-1-2-1 44h
2-1-2-3 46h
2-1-2-4 47h
2-1-3-1 48h
Chapter 4
Post Code
Test 8742 keyboard
controller.
Set ES segment register to
4GB.
Autosize DRAM.
Clear 512K base RAM.
RAM failure on address
line xxxx.
RAM failure on data bits
xxxx of low byte of memory
bus.
Test CPU bus-clock
frequency.
COMS RAM read/write
failure.
Reinitialize the chipset.
Shadow system BIOS
ROM.
Reinitialize the cache.
Autosize cache.
Configure advanced
chipset registers.
Load alternate registers
with CMOS values.
Set Initial CPU speed.
Initialize interrupt vector.
Initialize BIOS interrupt.
Check ROM copyright
notice.
Initialize manager for PCI
Options ROMs.
Check video configuration
against CMOS.
Description
• Check the keyboard.
• Check the keyboard controller.
• Check the main board.
• Check the main board.
• Check the system memory.
• Check the main board.
• Check the system memory.
• Check the main board.
• Check the system memory.
• Check the main board.
• Check the system memory.
• Check the main board.
• Check the processor.
• Check the main board.
• Check the main board.
• Check the main board.
• Check the expansion cards.
• Check the system memory.
• Check the main board.
• Check the secondary cache.
• Check the processor.
• Check the main board.
• Check the secondary cache.
• Check the processor.
• Check main board.
• Check the main board.
• Check the main board.
• Check the main board.
• Treat as an expansion card problem.
• Check the main board.
• Treat as an expansion card problem.
• Check the main board.
• Check the main board.
• Treat as an expansion card problem.
• Check the serial port(s).
• Check the parallel port(s).
• Check the main board.
• Check the video card.
• Make sure the system memory is
• Check the main board.
What to Check (Recommended)
working properly.
83