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Check
Diagnostic LED decoder
point
G=Green, R=Red, O=Orange
EB
O
R
EF
O
O
F0
R
R
F1
R
R
F2
R
R
F3
R
R
F5
R
O
FA
O
R
FB
O
R
F4
R
O
FC
O
O
FD
O
O
FF
O
O
Description
O
G
Disable ATAPI hardware. Jump back to checkpoint E9.
O
G
Read error occurred on media. Jump back to checkpoint EB.
R
R
Search for pre-defined recovery file name in root directory.
R
O
Recovery file not found.
O
R
Start reading FAT table and analyze FAT to find the clusters
occupied by the recovery file.
O
O
Start reading the recovery file cluster by cluster.
R
O
Disable L1 cache.
O
R
Check the validity of the recovery file configuration to the current
configuration of the flash part.
O
O
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.
R
R
The recovery file size does not equal the found flash part size.
R
R
Erase the flash part.
R
O
Program the flash part.
O
O
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.
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Troubleshooting
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Table of Contents
Troubleshooting
