Solve : Computer turned off at work, starts not again?

1.	Solve : Computer turned off at work, starts not again?
Answer» Hi! Today at work my computer turned off. I meant it was overvoltage what is here not unknown. I pressed power-on button, works not. Then I switch PSU off and later on - again no action. Then I removed power cable and later connect BACK and then turn on PSU and hit power-on - same result. So, I was searching MB diodes and internal buttons (like MEM-OK etc.). Diodes lightning and even I had connected phone to computer USB and it signalized CHARGING. So, it looks like PSU can be ok, but what happened and how to solve it? PC config: MB Asus Z170A, iCore i5, 20GB RAM, ~7TB storage, GPU onboard + nVidia GeForce 210, 3 desktops, OS Windows 10.1803 Pro x64 Please reply anybody. To add - don't have another working PSU. Thank you for each word. MiroGet another power supply and try that. You can have a power supply fail and put out USB power for charging but have another voltage rail blown out causing it to not turn on. What type of over voltage did you have? Lightning or a power surge? You might want to invest in a surge suppressor or a UPS as well so that if a power spike happens again it doesnt kill anything else.Here's overvoltage happening by this way: 1. Lost power in whole house 2. Few seconds ago powers on 3. It turns off all power switches in house off 4. I must switch them back 5. Then I can turn on PC and other electronic on Now it was without power switches off. It looks like losing power only or only PC lost power. All LEDs lighting ok on MB - seems like PSU is ok. Or not? MiroBorrow another PSU of same or greater wattage to test...no need to buy 1 til you know it's the culprit. Quote from: MIRKOSOFT on May 08, 2018, 10:07:03 AM Today at work my computer turned off. Isn't this your employer's problem? Good catch Salmon...I am forbidden to monkey around with computers at work if it involves opening them. Thank God! We are not even supposed to move them from one desk to another, we are meant to raise a 'IT equipment relocation request' which is on a catalogue of billable services, £95 (around $130). All of our IT support is outsourced. Of course we ignore that particular rule. One time we wanted to move a big printer from one end of the office to the other. £395 (around $540) plus £60 ($80) for a 10 metre long Ethernet cable. The SLA (Service level agreement) was 5 working days. My boss found 2 such cables in a box of old stuff in the server room. We were told to throw it all out but never got around to it. He stole one to take home and we used the other one for the printer. which we moved on a TROLLEY we use for moving FILES around. But I won't open a PC. My PC powered at work was meaning that I was programming and this was the work, it's my home computer. Sadly, don't know how it's with written code - I can be happy that it does backup copy per minute... Miro Quote from: patio on May 08, 2018, 01:40:21 PM Borrow another PSU of same or greater wattage to test...no need to buy 1 til you know it's the culprit. So, I TESTED it and failure is motherboard. I'm lucky that is yet in guarantee period. Miro

Answer»

Hi!

Today at work my computer turned off. I meant it was overvoltage what is here not unknown.
I pressed power-on button, works not.
Then I switch PSU off and later on - again no action. Then I removed power cable and later connect BACK and then turn on PSU and hit power-on - same result.
So, I was searching MB diodes and internal buttons (like MEM-OK etc.). Diodes lightning and even I had connected phone to computer USB and it signalized CHARGING.
So, it looks like PSU can be ok, but what happened and how to solve it?
PC config: MB Asus Z170A, iCore i5, 20GB RAM, ~7TB storage, GPU onboard + nVidia GeForce 210, 3 desktops, OS Windows 10.1803 Pro x64

Please reply anybody. To add - don't have another working PSU.

Thank you for each word.
MiroGet another power supply and try that. You can have a power supply fail and put out USB power for charging but have another voltage rail blown out causing it to not turn on.

What type of over voltage did you have? Lightning or a power surge?

You might want to invest in a surge suppressor or a UPS as well so that if a power spike happens again it doesnt kill anything else.Here's overvoltage happening by this way:
1. Lost power in whole house
2. Few seconds ago powers on
3. It turns off all power switches in house off
4. I must switch them back
5. Then I can turn on PC and other electronic on

Now it was without power switches off. It looks like losing power only or only PC lost power.
All LEDs lighting ok on MB - seems like PSU is ok.
Or not?

MiroBorrow another PSU of same or greater wattage to test...no need to buy 1 til you know it's the culprit. Quote from: MIRKOSOFT on May 08, 2018, 10:07:03 AM

Today at work my computer turned off.

Isn't this your employer's problem?
Good catch Salmon...I am forbidden to monkey around with computers at work if it involves opening them. Thank God! We are not even supposed to move them from one desk to another, we are meant to raise a 'IT equipment relocation request' which is on a catalogue of billable services, £95 (around $130). All of our IT support is outsourced. Of course we ignore that particular rule. One time we wanted to move a big printer from one end of the office to the other. £395 (around $540) plus £60 ($80) for a 10 metre long Ethernet cable. The SLA (Service level agreement) was 5 working days. My boss found 2 such cables in a box of old stuff in the server room. We were told to throw it all out but never got around to it. He stole one to take home and we used the other one for the printer. which we moved on a TROLLEY we use for moving FILES around. But I won't open a PC.

My PC powered at work was meaning that I was programming and this was the work, it's my home computer. Sadly, don't know how it's with written code - I can be happy that it does backup copy per minute...

Miro Quote from: patio on May 08, 2018, 01:40:21 PM

Borrow another PSU of same or greater wattage to test...no need to buy 1 til you know it's the culprit.

So, I TESTED it and failure is motherboard.
I'm lucky that is yet in guarantee period.

Miro

Solve : Computer turned off at work, starts not again?

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