Dell T3400 User's Guide - Page 104
Beep Codes - motherboard
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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) 1 2 Description Suggested Remedy BIOS checksum failure. Possible motherboard failure. No memory modules are detected. Contact Dell (see "Contacting Dell" on page 269). • 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). 104 Troubleshooting Tools