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Procedure 3
Printer Port LED Check on Resume Mode
The printer port LED displays the IRT status and test status by turning lights on and off as an
eight-digit binary value for resume mode.
To use the printer port LED, follow these steps:
1.
Make sure the computer is in resume mode.
2.
Plug the printer port LED into the computer's parallel port.
3.
Turn on the computer.
4.
Read the LED status from left to right as you face the back of the computer.
5.
Convert the status from binary to hexadecimal notation.
6.
If the final LED status is FFh (normal status), go to Procedure 4.
7.
If the final LED status matches any of the test status values in Table 2-4, perform
Procedure 5.
Table 2-4 Printer port LED resume mode error status
Error status
F1H
System BIOS RAM checksum error.
F2H
External display card is connected.
F3H
HDD was installed.
F4H
SMRAM checksum error or memory error during suspend.
F5H
Conventional memory checksum error.
F6H
Video RAM checksum error.
F7H
Extended memory checksum error.
F8H
PnP RAM checksum error.
650CT
Meaning of status
2-19
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Troubleshooting
