abit nv8 Manual
Troubleshooting (Need Assistance?)
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Appendix H. Troubleshooting (Need Assistance?)
Q & A:
Q: Do I need to clear the CMOS before I use a new motherboard to assemble my new computer
system?
A: Yes, we highly recommend that you clear the CMOS before installing a new motherboard. Please
move the CMOS jumper from its default 1-2 position to 2-3 for a few seconds, and then back. When
you boot up your system for the first time, follow the instructions in the user's manual to load the
optimized defaults.
you boot up your system for the first time, follow the instructions in the user's manual to load the
optimized defaults.
Q: If my system hangs when I update the BIOS or set the wrong CPU parameters, what should I
do?
A: Whenever you update the BIOS or if the system hangs due to wrong CPU parameters setting, always
clear CMOS jumper before booting up again.
Q: Why does the system fail to boot up again right after a mechanical power-off?
A: Please keep a 30-second interval between each mechanical power On/Off.
A: Please keep a 30-second interval between each mechanical power On/Off.
Q: Why does the system fail to boot up and nothing displays on the screen after I did some
overclocking or non-standard settings inside the BIOS? Is the motherboard dead? Do I need to
return it to where I bought from or go through an RMA process?
return it to where I bought from or go through an RMA process?
A: It should not cause hardware or permanent damage to motherboard when BIOS settings were
changed from default to over-clocking or non-standard status.
We suggest the following three troubleshooting methods to discharge CMOS data, recover the
hardware default status, and then making the motherboard work again. There is no need to bother
returning the motherboard to where you bought it from or go through an RMA process.
Step 1. Switch off the power supply unit and then switch it on again after one minute. If there is no
We suggest the following three troubleshooting methods to discharge CMOS data, recover the
hardware default status, and then making the motherboard work again. There is no need to bother
returning the motherboard to where you bought it from or go through an RMA process.
Step 1. Switch off the power supply unit and then switch it on again after one minute. If there is no
power switch on the power supply unit, disconnect its power cord for one minute and then
reconnect.
Press and hold the <Insert> key on the keyboard, and press the power-on button to boot up
system. If it works, release the <Insert> key and hit <Del> key to enter the BIOS setup page
to apply the correct settings.
If the situation remains the same, repeat the procedures in Step 1 for three times, or try Step
2.
reconnect.
Press and hold the <Insert> key on the keyboard, and press the power-on button to boot up
system. If it works, release the <Insert> key and hit <Del> key to enter the BIOS setup page
to apply the correct settings.
If the situation remains the same, repeat the procedures in Step 1 for three times, or try Step
2.
Step 2. Switch off the power supply unit or disconnect the power cord. Open the chassis cover.
Locate the CCMOS jumper near the button battery. Change the jumper position from default
1-2 to 2-3 for one minute to discharge the CMOS data, and then put it back to default 1-2
position.
Close the chassis and switch on the power supply unit or plug in the power cord. Press the
power-on button to boot up system. If it works, hit <Del> key to enter the BIOS setup page
to do the correct settings.
If the situation remains the same, try Step 3.
1-2 to 2-3 for one minute to discharge the CMOS data, and then put it back to default 1-2
position.
Close the chassis and switch on the power supply unit or plug in the power cord. Press the
power-on button to boot up system. If it works, hit <Del> key to enter the BIOS setup page
to do the correct settings.
If the situation remains the same, try Step 3.
Step 3. The same procedure as Step 2, but while discharging the CMOS data, pull out the ATX
power connectors from motherboard and remove the button battery during CMOS discharge.
User’s Manual