IBM Aptiva Reference Manual page 46

If the problem is...
When the computer is
turned on, the message
"Insert a system diskette
and press Enter to reboot"
appears.
42
Here's what to do...
1 Remove any diskette from the diskette drive and
restart your computer.
2 Restart your computer and use the Setup Utility to
make sure that startup devices are set correctly. Make
sure the Disk Drive options for the drives you have
designated as startup devices are set correctly. For
information about starting the Setup Utility, see
"Starting the Setup Utility" on page 72.
3 Make sure the power and signal cables are securely
attached to the back of the hard disk drive in the
system unit.
4 Insert the Product Recovery disc into the CD or DVD
drive and press Ctrl + Alt + Delete. Follow the
instructions on the screen to restore the operating
system files to your computer's hard disk drive.
In some cases, this recovery process formats your
hard disk drive, erasing all files.
5 If you are not able to restore the operating system
files to your computer's hard disk drive, see
"HelpWare support and services" on page 79 for
information on obtaining service.
If any of these problems continue after taking the actions
listed, run the diagnostics programs that came with your
computer. If you need service, see "HelpWare support and
services" on page 79.
Solving hardware problems