5 Troubleshooting Your PC
If Your PC Does Not Start
If Your PC Does Not Start
If Your Display is Blank and There Are No Error Messages
1Check that the computer and display are turned on. (The power light should be illuminated.)
2Check the display’s contrast and brightness settings.
3Make sure that all cables and power cords are firmly plugged in.
4Make sure the power outlet is working.
5If the PC still does not work:
aTurn off the display, the computer, and all external devices.
bUnplug all power cords and cables, noting their positions.
cRemove the cover.
dCheck that all internal cables are correctly attached and firmly in place.
eCheck that the processor is correctly installed, see “Installing an Upgrade Processor” on page 47.
fCheck that the processor speed switches have been set correctly, see “System Board Connectors and Switches” on page 95.
gCheck that the memory modules are correctly installed, see “Installing Memory” on page 26.
hCheck that accessory boards are firmly seated in their slots, see “Installing Accessory Boards” on page 31.
iVerify that any switches and jumpers on the accessory boards are properly set (refer to the manuals that came with each board).
jCheck that the switches on the system board are properly set, see “System Board Connectors and Switches” on page 95.
kReplace the cover.
lReconnect all cables and power cords.
mTurn on the display and computer.
If your PC still does not start, remove all boards and accessories, except the hard disk drive. Start the PC. If the PC now works, add the boards and accessories one at a time to determine which one is causing the problem.
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