PC starting with power wire and ignores power button

[Warlord4Hikage]

Like, i was cleaning PC from dust and then, when work was done, i plugged power wire and PC started to work.
Power button didn't shine and didn't work. Reboot button did work too.
Display is off.

Was trying to check RAM - didn't help (which means problem not in it).

Found few helping sites and yt videos - they didn't help.

Edited: PC from 2010. Something from office kind. Asus.

[76561199502155650]

vague not sure how we can help you, you might of plugged the power wire into the wrong spot, its common and happens alot.

[Warlord4Hikage]

Unicorn - Rainbow Unit の投稿を引用：

vague not sure how we can help you, you might of plugged the power wire into the wrong spot, its common and happens alot.

It's only one slot for power wire


I have PC from 2010

[_I_]

double check that the front panel connectors are plugged into the correct spots

and disable restore power on loss in bios settings
you dont want the pc to turn back on after a brownout, as another may occur

[Bad 💀 Motha]

Yes could have easily dislodged the front panels connections that go from front Csee buttons/leds to motherboard which would then have the front case buttons no longer working if the front panel connections are loose and/or not plugged in correctly

[Warlord4Hikage]

_I_ の投稿を引用：

double check that the front panel connectors are plugged into the correct spots

and disable restore power on loss in bios settings
you dont want the pc to turn back on after a brownout, as another may occur

How i must go into BIOS if I can't use PC normally?...

[JohnMars78]

When cleaning the PC, have you used any liquid on the outer case?
The contract points inside the power button might be shorted.

[Warlord4Hikage]

JohnMars78 の投稿を引用：

When cleaning the PC, have you used any liquid on the outer case?
The contract points inside the power button might be shorted.

Nothing wet as used.
Plus i didn't touched button at all in cleaning.

[_I_]

make sure the front panel connectors are connected properly

after that and it works
spam del on boot to enter bios, boot tab, disable restore power on loss

[Warlord4Hikage]

_I_ の投稿を引用：

make sure the front panel connectors are connected properly

after that and it works
spam del on boot to enter bios, boot tab, disable restore power on loss

I have strong feeling that no one listen to me.

Display isn't on, after power wire powers PC to auto turn him on.
But display is plugged and button is glowing.

[Illusion of Progress]

Bit late but let's start from the beginning.

You had a functioning PC. You cleaned the PC. The PC now powers on, but does not POST (this stands for "power on selft test" and basically means it is 'running" like fans and lights may come to life, but the PC doesn't operate or ever show a video signal and get to even the BIOS).

Is all of that correct?

If so, something during the cleaning process upset the proper operation of the PC. It might be something loose. It might be something else.

Start with "reseating" everything. This means unplug and reconnect everything. All cables. RAM. All add-in cards (like video card). Probably shouldn't have to do CPU but you can if you want. Same with CMOS battery (this will reset BIOS to default). This is sort of "rebuilding it" in a way.

See if that gets it starting correctly, and then go from there.

[Warlord4Hikage]

Illusion of Progress の投稿を引用：

Bit late but let's start from the beginning.

You had a functioning PC. You cleaned the PC. The PC now powers on, but does not POST (this stands for "power on selft test" and basically means it is 'running" like fans and lights may come to life, but the PC doesn't operate or ever show a video signal and get to even the BIOS).

Is all of that correct?

If so, something during the cleaning process upset the proper operation of the PC. It might be something loose. It might be something else.

Start with "reseating" everything. This means unplug and reconnect everything. All cables. RAM. All add-in cards (like video card). Probably shouldn't have to do CPU but you can if you want. Same with CMOS battery (this will reset BIOS to default). This is sort of "rebuilding it" in a way.

See if that gets it starting correctly, and then go from there.

I plugged power wire in his port and PC instantly turning on.
Power button didn't work.
Display too.

Cleaning was accurate and I didn't touched power button.

Was unplugging everything outside, was trying to replace RAM in different socket - nothing.

[_I_]

if you press and hold power button 5-10sec, will it turn off?

then tap to see if it tries to boot again?

do you get a post beep, or beep codes?

[Talby]

That is an interesting - if you plug in power to PSU it auto-starts, like you are jump-starting the PSU manually to test it like this:
https://www.youtube.com/watch?v=Ea1dcJ0QyAE

for some reason your motherboard is forcing power_on signal (the green wire to ground in the video) without waiting for the power switch signal - suspect that the board is bad, possible something caused static when cleaning, agree you will have to "start from scratch" with the motherboard connections as Illusion mentioned.

good guide here:
https://www.technewstoday.com/how-to-test-motherboard/

[76561199502155650]

prob just put the power plug connection on the wrong pin and miss aligined them

[Warlord4Hikage]

_I_ の投稿を引用：

if you press and hold power button 5-10sec, will it turn off?

then tap to see if it tries to boot again?

do you get a post beep, or beep codes?

Button doesn't work at all