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.

 

[AMD USER]

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?

Yes, I tried your instruction, but the pc showed no response ie., it did not turn on, but once I kept my PC in sunshine with sidecase removed for 1 hour , it worked and started immediately.

Again yesterday night there was heavy downpour , today (24th oct 2019) when I switched ON the plug switch and pressed the power button on my PC case , same problem appeared again , now today the climate is totally cloudy NO SUNSHINE, which means I can't turn ON my PC today.

 

[AMD USER]

on 24th October 2019(Today), there was slight sunshine for a short time, I kept my PC in the open with the two side covers removed for 1hr, then brought it into the house , plugged in and pressed the Power Button on the pc case, IT STARTED!

 

[AMD USER]

on 24th October 2019(Today), there was slight sunshine for a short time, I kept my PC in the open with the two side covers removed for 1hr, then brought it into the house, plugged in and pressed the Power Button on the pc case, IT STARTED!

Every time when I start PC after keeping it in the sunshine, the time in the windows is changed or it is delayed.
I have not checked the time in BIOS.
But the time in Windows is changed every time when I start after keeping PC in the sunshine,
When I say there was a change in the Time and date in windows. The date is delayed, I think the date in which it is present is the date on which it was the last shutdown.
I have to change the date (UPDATE) and change the time every time after I start PC after keeping it in the sunshine.

 

[TeeJay1952]

MoBo Battery?

 

[AMD USER]

MoBo Battery?

Please elaborate should I change the CMOS battery?

Does changing CMOS battery nullify the warranty of Mobo?

As far as I heard the average lifespan for a CMOS battery is 5-6 years, but my Mobo is just barely a year old.

Also Anyone please explain why my PC starts everytime after I keep it in sunshine for 1hour, the only reason I could come up is due the moisture formation which happens on rainy days, also this whole problem occurs only on days when the night before there is a heavy downpour.

 

[VirtualLarry]

I've been thinking for a while, that the problem with the sunny/rainy days may just be red herring, and that you are having boot probems, period. If your CMOS battery is shot, and, in some case, it can come that way from the factory or warehouse, they don't always source batteries that are in tip-top condition for new mobos either, or it sits in the warehouse for a year or two. So, try replacing it.

The other possibility, is there's a short somewhere, that is also causing your CMOS to reset.

Or a PSU problem, maybe.

 

[AMD USER]

I've been thinking for a while, that the problem with the sunny/rainy days may just be red herring

But every single time I keep the PC in Sunshine for 1hr and then switch on the Power button on PC case, It started, not once it failed.

So, try replacing it.

The very first time this whole problem occurred immediately bought a new CMOS battery and replaced it with the inbuilt one and tried switching on the PC, it did not work, I have described the whole thing in my very first post of this thread.
Here(below) is the post where I described it.

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.View attachment 11069

The other possibility is there's a short somewhere, that is also causing your CMOS to reset.

Can you please help me how to find exactly the point where the short occurs and how to fix, it, I even removed the whole motherboard and PSU out of the case and tried to start PC with jump-start(with Screwdriver) by placing all the components(Mobo and PSU) outside on a wooden board, It did not start.

Or a PSU problem, maybe.

This might possibly be the case, But I conducted the Paper clip test 4 times, it always passed still I did not check the PSU with a PSU tester. But I am totally puzzled how every single time after the PC is kept in the sunshine it boots without any issue.

 

[AMD USER]

..

 

[TeeJay1952]

Switching bat is #3 solution to a 400 buck problem. Easy to try, cheap to do

 

[Muadib]

At this point you need to start replacing parts, and the cmos battery is the easiest to start with. If that doesn’t work, then I would swap out the psu.

 

[serpretetsky]

It's hard to say where exactly the problem, but it seems like it's something with the power on sequence. (System is rock solid stable once it is actually on?)

Power on begins when PSU is connected to power and enables standby power to the motherboard (this is the power that your leds are using before you turn on the computer). I believe on ATX power supplies this is +5V STBY.

+5V STBY turns on the power logic on the otherboard. the power logic on the motherboard needs to request that the power supply turns on, this is done by bringing PSON low to ground (this is the paper clip trick).

Once that is done the motherboard power logic should await the PWR_OK or PWR_GOOD signal from the power supply (5V logic) which signifies all the rails are properly regulated.

Apparently this signal should have some delay (100ms to 500ms), but on cheap power supplies they just pull this signal up to +5V with a resistor. Some motherboards might not like this.

Once the motherboard logic has validated the PWR_OK or PWR_GOOD signal it begins the power up sequence for the PCH, Memory, and CPU.

It's possible that either some capacitors/resistors are incorrect/damaged/missing on your board, and the humid air is providing just enough resistance difference to screw with the power up sequence.

Check there is no dirt/smudges on the motherboard that might absorb moisture and become low-grade resistors.

Otherwise it's hard to say if it's motherboard or power supply. Like others mentioned, swap components.

 

[AMD USER]

Switching bat is #3 solution to a 400 buck problem. Easy to try, cheap to do

At this point you need to start replacing parts, and the cmos battery is the easiest to start with. If that doesn’t work, then I would swap out the psu.

I tried replacing the CMOS battery, the very first time this problem occurred, you can read it in the 1st post of this thread.

So Now PSU must be the faulty one, Now can I be sure that Mobo is completely fine? Since I have to dispatch the PSU to the center where I bought it, to claim the warranty.
I have to be sure that it is the PSU that is the real culprit here.

 

[Muadib]

I tried replacing the CMOS battery, the very first time this problem occurred, you can read it in the 1st post of this thread.

So Now PSU must be the faulty one, Now can I be sure that Mobo is completely fine? Since I have to dispatch the PSU to the center where I bought it, to claim the warranty.
I have to be sure that it is the PSU that is the real culprit here.

No, at this point it could still be the motherboard. You don't know what the cause is yet. What happens if you leave the PC running once you get it to start?

 

[AMD USER]

What happens if you leave the PC running once you get it to start?

No problem It runs fine, In one or two of the instance there was even a Power shutdown when the PC turned off completely, but after few minutes the Power(electricity) came again when I switched on the Power button it started without any issue.

It is only during the time when I turn off the system before going to bed and again when I switch on the power button on the PC case the next morning( heavy downpour before that morning, when I was in sleep), this problem occurs.

 

[VirtualLarry]

No problem It runs fine, In one or two of the instance there was even a Power shutdown when the PC turned off completely, but after few minutes the Power(electricity) came again when I switched on the Power button it started without any issue.

It is only during the time when I turn off the system before going to bed and again when I switch on the power button on the PC case the next morning( heavy downpour before that morning, when I was in sleep), this problem occurs.

Try this:

Shut off your PC at night. In the next morning, instead of pushing the Power-On ATX soft-on button (power-on button on case), try SWITCHING OFF THE PSU IN THE BACK, wait 10 second, then SWITCH IT ON IN BACK, wait 10 seconds, and THEN press the power-on button on the front of the case.

This can indicate a failing PSU (I've seen it before), and possibly, when you "disconnect the PC to take it outside", it is emulating the step of powering-off the PSU in the back, and THAT'S what you're seeing. It may well have NOTHING TO DO WITH "sunny versus rainy".

Edit: That problem required a PSU swap. Chances are, that will fix your issue.

 

[AMD USER]

Try this:

Shut off your PC at night. In the next morning, instead of pushing the Power-On ATX soft-on button (power-on button on case), try SWITCHING OFF THE PSU IN THE BACK, wait 10 second, then SWITCH IT ON IN BACK, wait 10 seconds, and THEN press the power-on button on the front of the case.

Thanks.
Sure I will try that, but what should be the expected result, should the PC turn on to indicated everything is fine?

when you "disconnect the PC to take it outside", it is emulating the step of powering-off the PSU in the back, and THAT'S what you're seeing. It may well have NOTHING TO DO WITH "sunny versus rainy".

But during the days when there is no sunshine, when I am not able to start the pc, I leave the PC completely unconnected for a whole days(11+ hours), I think that is more than enough time to emulate the step of powering off the PSU, but still after a such a huge gap, when I plugin and switch on the Power button on the PC case, it does not work.
But once there is sunshine, I keep in it open for just 1 hour compared to 11 hours where it was lying unconnected, it starts immediately.

My speculation is the dust particles might have embedded itself on the capacitors or any important component of the Mobo, so if the weather is Rainy the atmosphere temp reduces, during when the dust particles which is embedded on the Mobo or whatever component gets dampened which prevents it from starting but once I keep in the sunshine the dust particles temp raises losing its dampness.
I came to this conclusion after reading through this particular case(below)

Is dampness the cause of my PC not starting up? How do I fix this?##Ronald D'Costa

Hi Ronald. Your engineer friends are right. In the monsoons, especially if the days are continuously wet all day, the humidity level rises and there is a lot of dampness in the air.

www.firstpost.com

 

[VirtualLarry]

Interesting. That article is the first time that I've seen such severe issues with humidity documented.

Although, now that you jog my memory, I've seen Gigabyte-brand motherboards, advertised with "anti-humidity" features, such as a "drying mode" for the mobo (probably heats it up), as well as a more-dense PCB, to cut down on the ability of moisture to saturate the PCB fibers and cause internal issues.

Maybe you are on to something. I've just never seen that before, myself. (I don't live in a humid climate, however, I'm in the Northeast of the USA.)

And if you tried disconnecting the PC for several hours, even on rainy days, and then connected it and attempted to power-on, and it failed, that could indicate that my theory about the PSU may be incorrect. However, I still think that you should attempt replacing the PSU with a known-good one (at least even temporarily), for testing purposes, for a week, and see if your problem persists. If it does, then I think that you need a new motherboard. (Try a Gigabyte brand Ultra-Durable board?)

Or move somewhere else less humid, or seal the room and get a de-humidifier than can run overnight for you. (Might make your throat and sinuses too dry too, be careful with that.)

 

[AMD USER]

that could indicate that my theory about the PSU may be incorrect. However, I still think that you should attempt replacing the PSU with a known-good one (at least even temporarily),

Yes, I will but before that I am going to buy one of this (PSU tester) to find if PSU is working fine, If the PSU passes this PSU tester tests, then the moisture should be the real culprit, if PSU fails this test then without any doubt I can dispatch my PSU for claiming the warranty.

 

[VirtualLarry]

I should tell you, that a PSU tester, can only really test if a PSU is bad, it can't tell you that a PSU is "good".

It's possible for a PSU to be usable for most things (regular voltages OK and regulated), and have thermal/capacitor/regulation issues with the +5VSB power line, which is used to power-up the rest of the system, and if that goes, the PSU may "appear fine" once the system has actually fully-powered-up, but may have trouble getting to that stage.

I once had a PSU failing, that ... once you pressed the front power-button, it took like 30-60 seconds for the PC to actually start powering up. (Bad PSU, failing in unusual way.)

 

[DrMrLordX]

@AMD USER

Have you tried just leaving the PC on all the time to see what happens?

 

[AMD USER]

@AMD USER

Have you tried just leaving the PC on all the time to see what happens?

Yeah, I have to try that. But once the pc started(after the sunshine treatment) I will leave or take break from pc for 30-35 min, during when the PC will go to sleep mode but once I come back and press a key, windows will login again.


Again today morning same problem, yesterday night I think there was rain, so again now I have to wait for a sunshine to switch on my pc.

 

[AMD USER]

Here is a similar condition like me

HELP High humidity causes failure to boot + quick fix.

Hello Everyone, This is a bit of a weird one for you. I'm currently trying to get to the bottom of an issue where high relative humidity causes my PC to not start up. Hopefully someone here might have run into this before and may be able to shed some light on the situation. Sorry this first...

rog.asus.com

Please read through the above site.

@DrMrLordX @VirtualLarry @Muadib @Markfw @DooKey

 

[DrMrLordX]

Interesting. Seems like a heater or hair drier might work. Static of course could be a problem using the hair drier.

 

[AMD USER]

Sunshine came at 3 pm, I kept my PC in sunshine till 4 pm, then brought it into the home, plugged in, pressed the power button on the PC case, it worked.

But date is right, but the time is totally wrong, it shows 2:52 but the time is 16:20, I never touched CMOS, I have no idea why time changes.

@DrMrLordX @VirtualLarry @Muadib @Markfw @DooKey

 

[DrMrLordX]

If it's your CMOS battery, you may have to remove the battery, clean the contacts, put in a new one, and then maybe seal it with petroleum jelly?