Lenovo ThinkPad X31 Service And Troubleshooting Manual page 40

...
1803: Unauthorized
daughter card is plugged
in. - Power off and
remove the daughter card.
1810:Hard disk partition
layout error
16 ®
ThinkPad X30
Predesktop Area
ThinkPad
v Predesktop Area
1. F1 BIOS Setup Utility
2. Security
3. Disabled
4.
v
1. Enter
2. RECOVER TO FACTORY CONTENTS
:
F1 BIOS Setup
ThinkPad
ThinkPad
Enter
ThinkPad
ThinkPad
Predesktop Area
Enter
ThinkPad
Enter
ThinkPad
1
Access IBM Predesktop Area
Predesktop Area
Enter
ThinkPad
ThinkPad