Acer Altos G710, Руководство по обслуживанию

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Chapter 4 82
Bootblock Recovery Code Checkpoint
Checkpoint
Diagnostic LED Decoder
Description G=Green, R=Red, A=Amber
MSB LSB
E0 R R R OFF
Initialize the floppy controller in the super I/O. Some interrupt vectors
are initialized. DMA controller is initialized. 8259 interrupt controller is
initialized. L1 cache is enabled.
E9 A R R G
Set up floppy controller and data. Attempt to read from floppy.
Determine information about root directory of recovery media.
EA A R A OFF
Enable ATAPI hardware. Attempt to read from ARMD and ATAPI CD-
ROM. Determine information about root directory of recovery media.
EB A R A G Disable ATAPI hardware. Jump back to checkpoint E9.
EF A A A G Read error occurred on media. Jump back to checkpoint EB.
F0 R R R R Search for pre-defined recovery file name in root directory.
F1 R R R A Recovery file not found.
F2 R R A R
Start reading FAT table and analyze FAT to find the clusters occupied
by the recovery file.
F3 R R A A Start reading the recovery file cluster by cluster.
F5 R A R A Disable L1 cache.
FA A R A R
Check the validity of the recovery file configuration to the current
configuration of the flash part.
FB A R A A
Make flash write enabled through chipset and OEM specific method.
Detect proper flash part. Verify that the found flash part size equals
the recovery file size.
F4 R A R R The recovery file size does not equal the found flash part size.
FC A A R R Erase the flash part.
FD A A R A Program the flash part.
FF A A A A
The flash has been updated successfully. Make flash write disabled.
Disable ATAPI hardware. Restore CPUID value back into register.
Give control to F000 ROM at F000:FFF0h.