Brand: FUJITSU
Category: Computers
Document Type: Manual
Language: EN
Available Languages: EN , ES
Manual for LIFEBOOK U938
Uploaded: Nov. 21, 2025, 8:43 p.m.
Manual Publish Date: 2018-03-01
Warranty Information
No specific warranty period is mentioned in the provided document pages.
The FUJITSU LIFEBOOK U938 is a reliable and convenient companion. It boots quickly, is ready for immediate use, and offers a long operating time due to its high-capacity battery. The user-friendly "BIOS Setup Utility" allows control over hardware and system protection through password properties.
Key operational aspects include:
- Innovative technology and ergonomic design.
- Quick boot times and extended battery life.
- BIOS Setup Utility for hardware control and security.
- Information on connections, ports, and components.
- Setup, operation, and maintenance instructions.
- Troubleshooting guidance for common issues.
Troubleshooting and error codes
| Error message/cause | Resolution |
|---|---|
| CMOS battery bad | Contact your sales outlet or our customer service centre. |
| System CMOS checksum bad - default configuration used | Switch the notebook off. Switch the notebook on. Press the function key F2 to access the BIOS Setup. In the BIOS Setup, select the Exit menu. Select the entry Load Setup Defaults. Select OK and press the Enter key. |
| Extended memory failed at offset: xxxx Failing Bits: ZZZZ ZZZZ | Check whether the additional memory module has been inserted correctly. |
| Failure Fixed Disk n | Start the BIOS Setup (Primary Master submenu) and select the correct settings. |
| Keyboard controller error | Switch the notebook off using with the ON/OFF button. Wait 3-5 seconds and switch on the notebook again. |
| Keyboard error | If you are using an external keyboard: Check the connection and reboot the notebook. |
| nn Stuck key | Make sure that no key is pressed. |
| Operating system not found | Check in the BIOS Setup whether your hard disk has been set correctly. Make sure that the operating system is installed on the corresponding drive. |
| Press <F1> to resume, <F2> to SETUP | Press the F1 function key to start the operating system. Press the function key F2 to access the BIOS Setup. |
| Previous boot incomplete - Default configuration used | Press the F1 function key when prompted to do so. |
| Real time clock error | Contact your sales outlet or our customer service centre. |
| nnnnK Shadow RAM failed at offset: xxxx Failing Bits: zzzz | Contact your sales outlet or our customer service centre. |
| System battery is dead - Replace and run SETUP | Contact your sales outlet or our customer service centre. |
| System cache error - Cache disabled | Contact your sales outlet or our customer service centre. |
| System timer error | Contact your sales outlet or our customer service centre. |