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Post Port Frequently Asked Questions
Below is a list of some basic POST Codes, possible problems and solutions. For more detailed
information about POST Codes, refer to Appendix in this manual.
Post Code
1. BIOS chip inserted incorrectly
2. Incorrect BIOS update version
3. Mainboard problem
FFh or CFh
4. Add-on card inserted incorrectly
1. Memory module inserted incorrectly
2. Memory compatibility problem
C1h - C5h
3. Memory module damaged
1. Error occured in VGA BIOS
2Dh
2. VGA card inserted incorrectly
Overclock error
26h
1. Initial Keyboard controller error
07h - 12h
2. RTC error
Problem
iii
Solution
1. Reinsert the BIOS chip
2. Download the correct BIOS version
update from the manufacturer's
Web site
3. Replace mainboard
4. Remove and replace the add-on card
1. Reinsert memroy module
2. Replace memory with correct type
3. Replace memory module
1. Replace VGA card
2. Reinsert the VGA card
Clear CMOS or press the insert key to
power on the system
1. Ensure the Keyboard and mouse are
connected correctly
2. Replace the RTC battery
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