Does a desktop PC require the air conditioner to be on before it starts?
Does a desktop PC require the air conditioner to be on before it starts?
When attempting to turn it on and it fails, nothing appears to be powered like it isn't connected or perhaps the fans and lights activate but it still doesn't boot. The humidity level in the room is unclear when it doesn't start and changes to a measurable amount when it does. You can purchase affordable humidity sensors for under ten dollars online to check this. If the device remains inactive without power, it might indicate a minor humidity-related issue that blocks current flow to the main board header when you press the power button.
Is there any power supplied to the PC when the air conditioner is not running?
These are my explanation for your words "It only starts if I power on the air conditioner for some minutes". If I correctly grasp your meaning, this is quite unexpected and not something I would normally anticipate. In fact, as mentioned before, I would have expected the opposite (a more typical situation).
Nothing is turned on, but the motherboard light is lit. The fans are off and the PC won't start.
I don’t have a hygrometer, so I can’t say the humidity percentage. However, the weather in Rio has been rainy for a long time and humid for several months.
My notebook is connected to the same power outlet and is functioning perfectly.
The humidity in Rio fluctuated between 70% and 92% during the day, averaging around 76%, which seems moderate.
I think your idea about a humidity-related short circuit is likely the reason for the issue.
Thanks!
I agree with the humidity theory. It might be useful to use more silica packets and see if it makes a difference. I would also try unplugging the power supply to check for changes. Make sure the switch behind the button isn't faulty—replacement parts are often inexpensive. If nothing works, consider using a different or borrowed power supply.
For sure I should not have to power on the air conditioner to start my PC! Unfortunately this is the method to power on my desktop!
😕
I checked the circuitry and there is no issue in ground or power. Understand that my notebook is plugged in the same power outlet and works perfectly.
Because of the problem I bought a new PSU to no avail.
You might attempt this when the device fails to power on (before using your AC). See the video here: https://www.youtube.com/watch?v=G4FOBL1c3pA. If successful, the issue likely lies with the power button not functioning correctly to apply power to the front panel in high humidity. The presence of the MB LED indicates power is available, but no action occurs when the button is pressed.
I placed two silica packets, but they only lasted about a week. It seems the issue got worse or the packets stopped working.
I didn’t blow the PSU; instead, I used a hot hair dryer on the motherboard, but it didn’t help (I didn’t use it for a long time, worried about damaging solder or components).
The front of the case switch is fine.
I purchased and installed a different brand of power supply without success.
Thanks.
I followed what the guy told me. That was one of the first things I attempted! Thanks.