Technical Support hp prodesk 400 g3
- Thread starter user46647
- Start date
Hello
First, replace the charger.
Program the BIOS.
Check the identification path of the charger to ICIO.
Finally, ICIO is suspicious.
Check the ohms of the motherboard and check the diode resistance of different parts.
Measure the voltage of the motherboard and look for the problem wherever there is a voltage drop.
First, replace the charger.
Program the BIOS.
Check the identification path of the charger to ICIO.
Finally, ICIO is suspicious.
Check the ohms of the motherboard and check the diode resistance of different parts.
Measure the voltage of the motherboard and look for the problem wherever there is a voltage drop.
CPU is usually known first, then RAM and then graphics.
Check if you remove the RAM and turn on the system, do you have the continuous beeping of the RAM?
If you have the beep, then the system recognizes the CPU and the RAM beep does not sound, so go to the graphics.
Clean the parts slot well.
Replace the coin cell battery
Check if you remove the RAM and turn on the system, do you have the continuous beeping of the RAM?
If you have the beep, then the system recognizes the CPU and the RAM beep does not sound, so go to the graphics.
Clean the parts slot well.
Replace the coin cell battery
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