The Computer Does Not Respond - Epson ActionTower 8000 User Manual

If you replace the processor, make sure the new processor is
installed correctly, and that the processor is aligned correctly
on the system board. If you did not align it correctly, the
system won't start. Also make sure the jumpers are set
correctly for your processor speed. For more information, see
"Installing Memory Modules (SIMMs)," "Upgrading the
Processor," and "Changing the Jumper Settings" in Chapter 4
You may have installed option cards that exceed the system's
power limits. Check "Option Slot Power Limits" in the
Appendix to see if they exceed the option slot power limits of
your computer.

The Computer Does Not Respond

The computer locks up.
Wait a few moments; if your computer does not respond after a
reasonable length of time, press Ctrl Alt Del and follow the
instructions on the screen. If that doesn't work, press the RESET
button.
You may have installed memory using SIMMs that work at the
wrong speed. Install the correct SIMMs; see "Installing
Memory Modules (SIMMs)" in Chapter 4.
Your system may have overheated. If you upgraded the
processor yourself, make sure you have an adequate heat sink
installed.
You reset the computer, but it still does not respond.
Try turning the computer off, wait 20 seconds, and turn it on
again.
Troubleshooting 7-5