The following table consists of some of the most common POST Codes. For a complete definition,
please refer to the POST Code List follow.
Most Common POST Codes
POST CODE
Cause
BIOS POST message
Solution
FF, 00
CPU
Check the functionality
of the CPU.
1. Check Power connecter and
make sure it is fully seated to
the motherboard power
socket. If you have a Pentium
4 motherboard, please make
sure the 12V 4-pin square
prong is connected to the
motherboard.
2. Remove the board from the
case and make sure it s not
short-circuited to the case.
3. Change CPU (preferably with
a CPU with the same speed).
Inspect and clean the CPU
socket and pins on the CPU
4. Make sure the CPU is
inserted fully and seated
properly in the socket. Try to
reseat your CPU if
necessary.
5. Check with your Motherboard
Manufacturer as well, as your
BIOS may be corrupted.
C1, C6, 31, 4E Memory
Setting up the DRAM
refresh rate, and
inspecting the
functionality of the
DRAM controller
1.Make sure the memory
module is seated fully in into
the socket.
2.Make sure the memory
module is not inserted
backward.
3.Change and clean the DRAM
module contact. Try replacing
the module with a known
good DRAM module.
Setting up the BIOS
controller
1. Clear CMOS and try turning
system on again.
2. Replace BIOS chip as your
current chip may be damaged
or corrupted.
Motherboard
Codes that are not listed
in the above list
Motherboard error, please call
your board manufacturer for
assistance.
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