Acer Altos G901 - Manual (Page 235)

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Recovery BIOS POST codes
The table below lists the port-80 codes displayed during a recovery
boot process.
CP Reason
E0 Initialize chip set
E1 Initialize bridge
E2 Initialize processor
E3 Initialize timer
E4 Initialize system I/O
E5 Check forced recovery boot
E6 Validate checksum
E7 Go to BIOS
E8 Initialize processors
E9 Set 4 GB segment limits
EA Perform platform initialization
EB Initialize PIC and DMA
EC Initialize memory type
ED Initialize memory size
EE Shadow boot block
EF Test system memory
F0 Initialize interrupt services
F1 Initialize real time clock
F2 Initialize video
F3 Initialize beeper
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