Dell Precision T3400 (Late 2007) - Manual (Page 104)

104
Troubleshooting Tools
Beep Codes
Your computer may emit a series of beeps during start up. The series of beeps
is called a beep code and can be used to help identify a problem with your
computer.
If your computer emits a series of beeps during start-up:
1 Write down the beep code.
2 Run the Dell Diagnostics to identify the cause (see "Dell Diagnostics" on
page 107).
Code Cause
2 short, 1 long BIOS checksum error
1 long, 3 short, 2 short Memory error
1 short F12 key pressed
Code
(repetitive
short beeps) Description Suggested Remedy
1 BIOS checksum
failure. Possible
motherboard failure. Contact Dell (see "Contacting Dell" on
page 269).
2 No memory modules
are detected. • If two or more memory modules are
installed, remove the modules (see
"Removing a Memory Module" on
page 160), then reinstall one module
(see "Installing a Memory Module" on
page 160) and restart the computer. If
the computer starts normally, continue
to install additional memory modules
(one at a time) until you have identified
a faulty module or reinstalled all
modules without error.
• If available, install working memory of
the same type into your computer (see
"Memory" on page 157).
• If the problem persists, contact Dell (see
"Contacting Dell" on page 269).