Question PC not turning ON

[AMD USER]

My PC is not turning on when I press the Power button on the CASE,
I saw few videos, related to this problem, where the suggestion I received was to

1. Try installing a NEW CMOS battery
2. Check if PSU is working by Paper Clip/stapler pin method.

I tried both of those suggestion, I got a New CMOS battery, removed the pre installed CMOS battery from the motherboard, installed the new one, Then tried switchingON the pc. Still it didn't turn ON.
I removed the entire PSU unit from the CPU CASE, and tested it using Paper CLip method. Since I couldn't get a Paper clip I tried it with Stapler pin, The fans in the PSU started spinning, I think that implies that PSU is perfectly fine.

Now I am confused what might be the problem with my PC.
I even removed my GPU and connected the monitor with Motherboard's display port, still no response,
Yet the RGB components in the Motherboard(ASUS EX 320 GAMING) Glows, when I switch on the Power plug.

My PC is barely a year old.
This is my PC config
AMD Ryzen 3 2200G( disable the VEGA 8 onboard graphics)
Asus Ex 320 Gaming motherboard
Gskill RAM 8GB(1 X 8)
Corsair VS 550
Zotac Geforce GTX 1050Ti
BIOS is latest.

 

[DooKey]

I'm wondering if something on the board isn't shorting out against the case. After the drive and pushing in the 24pin it starts. Drive home and it doesn't. I'd check all my wires and connections. Make sure a loose connector isn't against your board or a screw.

 

[amd6502]

Actually the night before PC stopped working, I was gaming, exited from the Game and turned it off, next morning after waking up, I switched ON the power button but found no response, then found that there was a Power cut in my area where I reside, then when Power came back , again I tired switching ON the PC, from then on till now no response.

A possibility is that a power spike has turned your PSU into an unreliable part. Mobo damage is also possible but I'd say less likely. I would shop for a new PSU. A lower end part is not too pricy.

Unforutanely I don't have a beeper speaker, but when I performed the RAM removr trick,all the Fans inside the case were dead IDLE, only the RGB part of the Motherbroad(which I have highlighted in the image attached in the 1st post of this thread ) glows,

I'm not sure if a cheap multimeter would pick up a little bit of AC voltage across the speaker terminals. It's worth a try. Or tear up an old (or dollar store) headset or headphones.

At this point it could be a variety of things. So gotta rule them out one at a time I guess. My bet is on the PSU, it's somewhat likelier.

 

[DrMrLordX]

I'm wondering if something on the board isn't shorting out against the case. After the drive and pushing in the 24pin it starts. Drive home and it doesn't. I'd check all my wires and connections. Make sure a loose connector isn't against your board or a screw.

Might be worth testing his rig outside the case as well. Could also be dirty power from the socket (but I doubt it).

 

[JEDIYoda]

PC are like women -- just when you think you have them figured out....

 

[AMD USER]

PC suddenly started turning ON, I was working in it for like 3 hours before going to sleep, I thought it is fixed now, Again Next morning when I switched on the Power button in the front case, same problem came back.

How come PC turned ON Last night and again went back to the problematic condition next morning.?
I have decided to get a PSU tester, to check the PSU.

Since PC turned on in the service center and in my home last night, I think Motherboard must be alright, as a faulty motherboard should not start forever, right?

So I think the problem might be with PSU, although when I tested it using Paper clip method, It runs still there may be some problem with it.
Once PSU tester arrives I will be testing my PSU , If as speculated PSU is the real culprit, I should contact CORSAIR to claim warranty.

 

[amd6502]

What if the tester is faulty? I'd just try another new PSU.

 

[AMD USER]

What if the tester is faulty? I'd just try another new PSU.

I know that Buying a new PSU is a much better solution, but before that I am trying to just verify if PSU is really faulty, also a PSU Tester is much cheaper than PSU itself. Anyway the PSU has warranty.

But from the scenarios which I described above , can it be concluded that Motherboard is not faulty, right?

BTW, So far I never tried Bareboarding, I will do that too, before making any major moves such as going for a new PSU.

 

[AMD USER]

Now suddenly PC turned on when I switched the Power button on the case,

 

[DrMrLordX]

Now suddenly PC turned on when I switched the Power button on the case,

Run the PC outside of the case.

 

[serpretetsky]

You can try doing the paper clip trick while the atx 24pin cable is plugged into the motherboard (from the backside). This would bypass any power-on circuitry on the motherboard. Paper clip might be too fat, not sure. Needle tweezers? Thin wire?

 

[Mantrid-Drone]

Late to this discusion but could it be a fault with the main cases power button itself?

I ask because I've had that worry with a particular Coolermaster case which is notorious for the main PC power button's plastic spring failing. I'd think a worn out soft touch button might react in the same way.

The 'solution' I applied to bypass the need to press the power button at all was to use a PS/2 keyboard and enable keyboard start in the BIOS. USB keyboards can't do this but, if the BIOS and MB inputs support it, simply adding a cheap PS/2 keyboard for starting the PC is a clever way of avoiding the need to touch either the main PC power button or PSU switch.

You just leave the PC and PSU buttons in the on position and switch it on/off using the mains wall switch before startup or after shutdown.

 

[AMD USER]

Now suddenly PC turned on when I switched the power button on the case,

From 24th Sep 2019 till 16oct 2019 the pc was working fine without any issues,

but again today morning when I switched on the Power button on the case, the same problem occurred, no response, none of the fan(CPU, Exhaust, cooler) runs but just the RGB component of the motherboard alone glows(I have attached the image of the RGB component glowing in the first image of this thread).

The very first time this problem occurred, it was a heavy rainy day, and today when the problem reappeared it is a rainy day again, does it have to do anything with the climate or is it by just random chance that the problem occurs on rainy days.

 

[DrMrLordX]

That's weird. Doesn't seem like a short though, or you probably wouldn't get any power to the RGB.

 

[serpretetsky]

If your system is nice and stable after it turns on I'm going to assume your components are probably okay. (probably....)

Unplug your power switch from motherboard header and find a jumper. Use the jumper to momentarily short the pins where the power switch was plugged in. (it doesnt need to be a jumper, you can use a screwdriver for example, I just don't want you accidently shorting some pins that shouldn't be shorted).

1) Turn off computer
2) Start wiggling random cables and stuff around your computer. Just do some light tugging and wiggling, not too much force. Maybe try pressing on the motherboard in different spots to get it to bend a little.
3) Try to turn on
4) Make note of results. Repeat 1-4 and see if you can isolate poor connector/contact something

( you can also try wiggling cables with computer turned-on to see if something will suddenly cause the machine to power-down)

If it seems to be consistently turning on try the same thing with the power switch you removed at the beginning.

Its important that you keep repeating 1-4 above even if your computer suddenly turns on. Try to get it into a state where it does not turn-on. We need some reproducible results here. You can unplug the hard drive before you do this if you'd like.

I'm not sure how you tested the atx24pin connector, but applying a large amount of force on it might not showcase a contact problem. At work I have a power connector where the "power good" contact is kind of loose. I have to wiggle the power connector before it turns on, large down force doesn't help here. "ps on" is another culprit, if it doesn't make contact the PSU will not turn on.

 

[AMD USER]

I am now quite sure, that dampness during rainy days causes this problem, I kept my PC in the sunshine for 45-50 minutes and brought it into the home and connected the plug when I pressed the power button on the case it started.

The first time when this problem appeared was during a Rainy day, again it reappeared on a similar rainy day,

 

[Muadib]

I am now quite sure, that dampness during rainy days causes this problem, I kept my PC in the sunshine for 45-50 minutes and brought it into the home and connected the plug when I pressed the power button on the case it started.

The first time when this problem appeared was during a Rainy day, again it reappeared on a similar rainy day,

Pretty sure it was a coincidence, but I want to know your next move.

 

[AMD USER]

again today morning, when pressed the power button it did not start, I again kept my pc with side cases removed in the sunshine for 55 minutes, brought it back to home, and plugged it in it worked.

I think placing silica gel into the cabinet should solve the problem of damping.

BTW it was heavily raining yesterday night.

 

[Mantrid-Drone]

I think heat rather than damp might be the causal factor.

Although a different type of switch issue I have a well used Sony DualShock 2 and the Start button operation is very temperature dependent.

During the summer it behaves completely normally but come autumn/winter when the ambient room temperature drops you have to press harder and harder to get it to work.

After holding the controller for some time it warms up and the problem almost disappears.

The cause is a partially cracked PCB underneath the button which bends down when you press it. This stops the contact pad (actually a contact on the underside of a PVC overlay) being pressed by the button making a clean connection.

I've tried supporting the PCB underneath with several layers of insulating tape and a thin plastic shim and that improved it a great deal. But when starting in cold weather you still have to press down more firmly to get it to work.

In this instance the button/contact pad is probably inside a sealed component which maybe part of the case itself so there is likely no way to replace or repair it.

My suggestion to use a secondary PS/2 keyboard and enable start from keyboard in the BIOS (if available) is a practical solution. Wiring in a replacement on/off switch might be the only alternative short of replacing the whole case.

 

[AMD USER]

I think heat rather than damp might be the causal factor.

Although a different type of switch issue I have a well used Sony DualShock 2 and the Start button operation is very temperature dependent.

During the summer it behaves completely normally but come autumn/winter when the ambient room temperature drops you have to press harder and harder to get it to work.

After holding the controller for some time it warms up and the problem almost disappears.

The cause is a partially cracked PCB underneath the button which bends down when you press it. This stops the contact pad (actually a contact on the underside of a PVC overlay) being pressed by the button making clean connection.

I've tried supporting the PCB underneath with several layers of insulating tape and a thin plastic shim and that improved it a great deal. But when starting in cold weather you still have to press down more firmly to get it to work.

In this instance the button/contact pad is probably inside a sealed component which maybe part of the case itself so there is likely no way to replace or repair it.

My suggestion to use a secondary PS/2 keyboard and enable start from keyboard in the BIOS (if available) is a practical solution. Wiring in a replacement on/off switch might be the only alternative short of replacing the whole case.

Again today morning I am faced with the same problem, but I just can't take the PC outside as it is still raining, and no sunshine.

I don't think the problem is with Power button on the case, as I tried to jump-start the PC by shorting the Power PINS in motherboard with a screwdriver, still, it did not work, but after keeping it in the sunshine when I tried yesterday jumpstarting the PC with a screwdriver, the pc immediately started, then connected the Power headers from the front panel to the respective pins and started through the Power button in pc case, it started.
But for now, I can't start the PC as it was raining heavily yesterday night and still, it is raining mildly, so there is no sunshine to remove the damp.

I think the only solution is to place 5-6 silica gel inside the PC case.

 

[DrMrLordX]

If silica gel works then go for it. I've never seen anyone have problems starting a PC due to damp air though.

 

[AMD USER]

Again today morning I am faced with the same problem, but I just can't take the PC outside as it is still raining, and no sunshine.

If silica gel works then go for it. I've never seen anyone have problems starting a PC due to damp air though.

Clouds cleared and sunshine came around 2 pm, I kept my PC with the sides cover removed in the open in sunshine, for 1hour exactly, then brought it back into the house, plugged in and switched on the Power button on the case, it is working.

 

[DrMrLordX]

Clouds cleared and sunshine came around 2 pm, I kept my PC with the sides cover removed in the open in sunshine, for 1hour exactly, then brought it back into the house, plugged in and switched on the Power button on the case, it is working.

Hmm, maybe playing this music first will help bring it around:

(I kid, obviously. Try the silica gel.)

 

[AMD USER]

Slicia gel didn't help.

On 21st October 2019 morning, I tried to turn on PC by pressing the power button, the same problem came back, as the night before that morning there was a heavy downpour,
there was no sunshine the whole day,
Same was the case on the 22nd October 2019, it was totally cloudy no sunshine,
So I was not able to turn the PC on for both the days

On 23 October(today) morning there was a clear sky and had good sunshine, I kept the PC with the side cover removed in the sunshine for 1 hour, brought it back into the home, plugged in, IT STARTED,

BTW in my PC case, the PSU fan is situated below, all these days I kept Books and old newspapers below the PC, maybe that might be the cause of moisture entering the PSU or PC, as in genral the papers would get moistened during rainy days. I have removed those books and newspapers, now the PC case is placed just on the top of wooden table with nothing below, expect the wood itself, I hope from now on, I won't face this problem.

 

[serpretetsky]

What was the result of wiggling cables around and applying pressure to board. No result while system turned on and no result trying to turn on the system?

 

[DrMrLordX]

I kept the PC with the side cover removed in the sunshine for 1 hour, brought it back into the home, plugged in, IT STARTED,

Have you tried using a space heater instead? Or a (relatively distant) hair dryer?