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Supermicro C9Z390-PGW Motherboard User's Manual
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No Video
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1. If the power is on, but you have no video--in this case, you will
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need to remove all the add-on cards and cables first.
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2. Use the speaker to determine if any beep codes exist. (Refer to Ap-
pendix A for details on beep codes.)
3. Remove all memory modules and turn on the system. (If the
alarm is on, check the specifications of memory modules, reset the
memory or try a different one.)
Memory Errors
1. Make sure that the DIMM modules are properly installed and fully
seated in the slots.
2. You should be using unbuffered Non-ECC DDR4 (up to 3733 MHz
with OC) memory recommended by the manufacturer. Also, it is
recommended that you use the memory modules of the same type
and speed for all DIMMs in the system. Do not use memory mod-
ules of different sizes, different speeds and different types on the
same motherboard.
3. Check for bad DIMM modules or slots by swapping modules be-
tween slots to see if you can locate the faulty ones.
4. Check the switch of 115V/230V power supply.
When the System is Losing the Setup Configuration
1. Please be sure to use a high quality power supply. A poor quality
power supply may cause the system to lose CMOS setup informa-
tion. Refer to Section 1-7 for details on recommended power sup-
plies.
2. The battery on your motherboard may be old. Check to verify that
it still supplies ~3VDC. If it does not, replace it with a new one.
3. If the above steps do not fix the Setup Configuration problem,
contact your vendor for repairs.
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