105

 

Diagnostic LED Decoder

 

Post

 

 

 

 

 

G=Green,R=Red,A=Amber

Description

Code

 

 

 

 

 

 

MSB

 

 

LSB

 

 

 

 

 

 

 

81h

R

Off

Off

G

Keyboard Interface Test: A

 

 

 

 

 

keyboard reset error or stuck key

 

 

 

 

 

was found. Issuing the keyboard

 

 

 

 

 

controller interface test

 

 

 

 

 

command next.

 

 

 

 

 

 

82h

R

Off

G

Off

Check Stuck Key Enable

 

 

 

 

 

Keyboard: The keyboard

 

 

 

 

 

controller interface test

 

 

 

 

 

completed. Writing the

 

 

 

 

 

command byte and initializing

 

 

 

 

 

the circular buffer next.

 

 

 

 

 

 

83h

R

Off

G

G

Disable parity NMI: The

 

 

 

 

 

command byte was written and

 

 

 

 

 

global data initialization has

 

 

 

 

 

completed. Checking for a

 

 

 

 

 

locked key next.

 

 

 

 

 

 

84h

R

G

Off

Off

Verify RAM Size: Checking for a

 

 

 

 

 

memory size mismatch with

 

 

 

 

 

CMOS RAM data next.

 

 

 

 

 

 

84h

R

G

Off

Off

Check ATA Cable Type presence

 

 

 

 

 

of ATAPI devices.

 

 

 

 

 

 

84h

R

G

Off

Off

Display Keyboard Message.

 

 

 

 

 

 

16h

Off

G

G

R

Display IDE mass storage devices.

 

 

 

 

 

 

17h

Off

G

G

A

Display USB mass storage

 

 

 

 

 

devices.

 

 

 

 

 

 

85h

R

G

Off

G

Report the first set of POST

 

 

 

 

 

Errors To Error Manager.

 

 

 

 

 

 

86h

R

G

G

Off

Boot Password Check: The

 

 

 

 

 

password was checked.

 

 

 

 

 

Performing any required

 

 

 

 

 

programming before Setup next.

 

 

 

 

 

 

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Acer R700 manual 105