Hard Disk Boot Failure; System Software Problems - Epson NX Service Manual

General System Problems

Hard Disk Boot Failure

When the computer starts but does not load the operating system, follow these suggestions:
1
Run the SETUP program and make sure the hard disk drive type is correct.
2
Boot the system from a DOS system diskette in drive A. Then enter the command
DIR C: . (The drives Epson provides for the Epson NX have a partition for DOS as
well as a partition for the NeXTSTEP operating system.) If you see a message similar
to Invalid device sgecification,go to step 4.
3 If you see a valid directory listing, run the DOS FDISK program and make sure the
primary partition is set as the active partition.
4
Reformat the hard disk and reinstall the operating system on it. (See "Hard Disk
Problems" on page 2- 13 .)
5
If the hard disk is not an IDE-type, perform a low-level format on the HDD with the
Hard Disk Format program on the Reference diskette. (See the User's Guide for
instructions.) Reformat the hard disk and reinstall the operating system on it.

System Software Problems

If there is a problem using the built-in system software, follow the suggestions below:
1
Make sure you are using the correct procedure for starting the program.
2
Check your Service Information Bulletins for System BIOS updates. Install the most
recent version of the BIOS in Ul.
3 If you are unable to run the SETUP program, replace the System BIOS chip in Ul and
the SETUP text chip in U113 (see page 3-21).
4
Replace the system board.
2-14
Figure 2-6 Software Problems