140 Troubleshooting
Beep Codes Possible Problem
One Possible system board failure—BIOS ROM
checksum failure
Two No RAM detected
NOTE: If you installed or replaced the memory
module, ensure that the memory module is seated
properly.
Three Possible system board failure—Chipset error
Four RAM read/write failure
Five Real Time Clock failure
Six Video card or chip failure
Seven Processor failure
NOTE: This beep code is supported for computers
with Intel processor only.
Eight Display failure
Troubleshooting
Display Screen is Difficult to Read
• Desktop
• Laptop
Desktop
1. Adjust the resolution of the screen. For more information, see Help
and Support.
- Windows 8
Swipe from the right-edge (or move your pointer to the upper-right
corner) of the screen, and then click Search charm. Type Help and
Support in the search box and press <Enter>.
- Windows 7
Click Start → Help and Support.
2. Move the display away from electrical devices like fans, fluorescent
lights, and halogen lamps.
3. Ensure that the subwoofer is at least 60 cm away from the monitor.
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