[SOLVED] PC Crashing, faulty PSU or underpowered UPS?

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TRNQUL

TRNQUL

May 29, 2020
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Hey guys. So my PC crashes randomly on it's own. Sometimes its once in two weeks, sometimes 5 times a day. It just turns off as if a power cut and turns back on.
My PSU is a Cooler Master 650W and I've also attached my full specs. I have my PC plugged into a brand new 1000VA/600W UPS. Even with just the PC on it, it shouldn't be more than 450 watts. If I plug the CPU directly into the wall, the crashes reduce a bit. Is it a faulty PSU or the UPS is not able to take the load? (Even though the PC should be pulling around 400 watts while the UPS is 600)

Spec sheet: https://pcpartpicker.com/list/r3qDvW
 
Solution
jeremyj_83
TRNQUL said:
Also would it matter if I plug in my UPS to a 5A socket or a 15A socket? No, right?
Click to expand...
That would make a difference. The 5A socket would be for lower power usage things like a monitor where as the 15A would be the tower. If you have the tower in the 5A then when it hits a load usage the socket won't be able to deliver. Either the circuit on the UPS will pop or the system could crash from a severe lack of power.
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TRNQUL said:
Hey guys. So my PC crashes randomly on it's own. Sometimes its once in two weeks, sometimes 5 times a day. It just turns off as if a power cut and turns back on.
My PSU is a Cooler Master 650W and I've also attached my full specs. I have my PC plugged into a brand new 1000VA/600W UPS. Even with just the PC on it, it shouldn't be more than 450 watts. If I plug the CPU directly into the wall, the crashes reduce a bit. Is it a faulty PSU or the UPS is not able to take the load? (Even though the PC should be pulling around 400 watts while the UPS is 600)

Spec sheet: https://pcpartpicker.com/list/r3qDvW
Click to expand...
It could be the PSU as that CoolerMaster is only good enough to be used as a paper weight. However, before going and purchasing new hardware have you looked at System Logs in Event Viewer to see if any logs were written before the crash?
 
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jeremyj_83 said:
It could be the PSU as that CoolerMaster is only good enough to be used as a paper weight. However, before going and purchasing new hardware have you looked at System Logs in Event Viewer to see if any logs were written before the crash?
Click to expand...

This has only been happening from the past few months.
The errors in Event viewer mostly say that the crash was unexpected or that system rebooted withotut clean shut down.

Other errors (idk if they're related to this problem) are:
  • HAXM can't work on system with VT disabled
  • The System Services service failed to start due to the following error: The system cannot find the file specified
 
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jay32267 said:
I'd be looking at the PSU as the more likely problem because....

If the PSU has a problem...it can cause the crashes.

Also, if the PSU has a problem...it can pull more current from the UPS than it should and may cause the UPS to act up.
Click to expand...
Even so, I've had the system plugged into the wall since I posted this thread and it hasn't crashed. Before getting the UPS (today) it was plugged into the wall, and didn't really crash. How does a faulty PSU not mess up when plugged into the wall?
 
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TRNQUL said:
Even so, I've had the system plugged into the wall since I posted this thread and it hasn't crashed. Before getting the UPS (today) it was plugged into the wall, and didn't really crash. How does a faulty PSU not mess up when plugged into the wall?
Click to expand...
In your original post you say...

" If I plug the CPU directly into the wall, the crashes reduce a bit. "

So you still have crashes without the UPS. In which case the power supply is a likely suspect.
 
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jay32267 said:
In your original post you say...

" If I plug the CPU directly into the wall, the crashes reduce a bit. "

So you still have crashes without the UPS. In which case the power supply is a likely suspect.
Click to expand...
Without the UPS, the crashes are maybe 10% of what they are with the UPS. Before today, I had my old 600VA UPS on which my PC was working fine for two years. Then the crashes started so I plugged the PC into the wall and crashed came down to 10%. Now I have a 1000VA UPS and it didn't crash since the afternoon but now after 5 hours, it's started crashing. I'm confused myself
 
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TRNQUL said:
This has only been happening from the past few months.
The errors in Event viewer mostly say that the crash was unexpected or that system rebooted withotut clean shut down.

Other errors (idk if they're related to this problem) are:
  • HAXM can't work on system with VT disabled
  • The System Services service failed to start due to the following error: The system cannot find the file specified
Click to expand...
I was hoping the logs had more details. Those other errors have nothing to do with the crash.

TRNQUL said:
Even so, I've had the system plugged into the wall since I posted this thread and it hasn't crashed. Before getting the UPS (today) it was plugged into the wall, and didn't really crash. How does a faulty PSU not mess up when plugged into the wall?
Click to expand...
The specs you are looking at with your UPS 1000VA/600W deals with the amount of power it can give a computer when on battery. When it isn't on battery, the UPS acts like a surge suppress.

TRNQUL said:
Without the UPS, the crashes are maybe 10% of what they are with the UPS. Before today, I had my old 600VA UPS on which my PC was working fine for two years. Then the crashes started so I plugged the PC into the wall and crashed came down to 10%. Now I have a 1000VA UPS and it didn't crash since the afternoon but now after 5 hours, it's started crashing. I'm confused myself
Click to expand...
It could be heat related if it takes a long time to start happening. Have you cleaned out all your dust filters? Is you computer sitting directly on carpet?
 
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jeremyj_83 said:
I was hoping the logs had more details. Those other errors have nothing to do with the crash.


The specs you are looking at with your UPS 1000VA/600W deals with the amount of power it can give a computer when on battery. When it isn't on battery, the UPS acts like a surge suppress.


It could be heat related if it takes a long time to start happening. Have you cleaned out all your dust filters? Is you computer sitting directly on carpet?
Click to expand...
The CPU temps are fine since I have an AIO. Idk about the PSU temps. I've cleaned almost every part but cleaned the PSU just from the top and by blowing into the fans, since I've never removed my PSU from the case.
But I still don't understand how the crash dminomize when it's on the wall as opposed to the UPS
 
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TRNQUL said:
Without the UPS, the crashes are maybe 10% of what they are with the UPS. Before today, I had my old 600VA UPS on which my PC was working fine for two years. Then the crashes started so I plugged the PC into the wall and crashed came down to 10%. Now I have a 1000VA UPS and it didn't crash since the afternoon but now after 5 hours, it's started crashing. I'm confused myself
Click to expand...
I think that running with the UPS can cause confusion...so I would run from the outlet and try to get THOSE crashes eliminated.

And as I said...it may be the power supply.

....and lets just say a new power supply gets rid of them....

It COULD be that the old power supply....in addition to not supplying the proper voltages to the PC....also draws too much from the UPS.....and this might cause more crashes.

You can check the voltages with HWInfo.
You want them within 5% of +12,+5 and + 3.3 at idle AND under heavy load.
 
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jay32267 said:
I think that running with the UPS can cause confusion...so I would run from the outlet and try to get THOSE crashes eliminated.

And as I said...it may be the power supply.

....and lets just say a new power supply gets rid of them....

It COULD be that the old power supply....in addition to not supplying the proper voltages to the PC....also draws too much from the UPS.....and this might cause more crashes.

You can check the voltages with HWInfo.
You want them within 5% of +12,+5 and + 3.3 at idle AND under heavy load.
Click to expand...
Here are the HWMonitor Screenshots for the Voltages
I don't understand much about how much they should be or what "within 5% of +12,+5 and + 3.3 " is. So I attached the ss
Also would it matter if I plug in my UPS to a 5A socket or a 15A socket? No, right?
 
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The voltages I mentioned are the top three in that screen shot.
The screenshot shows them good.
Was that taken under load or at idle?
I would also run it under a heavy load like a game or benchmark software.
When you run under load...most likely the voltages will go down.
You don't want the them going more than 5% below.
For 12 this is 11.4
For 5 this is 4.75.
For 3.3 this is 3.135.
Also HWInfo shows your temps as well.
You can also see if you are getting too hot under load.
 
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jay32267 said:
The voltages I mentioned are the top three in that screen shot.
The screenshot shows them good.
Was that taken under load or at idle?
I would also run it under a heavy load like a game or benchmark software.
When you run under load...most likely the voltages will go down.
You don't want the them going more than 5% below.
For 12 this is 11.4
For 5 this is 4.75.
For 3.3 this is 3.135.
Also HWInfo shows your temps as well.
You can also see if you are getting too hot under load.
Click to expand...
Yes the ss have both, Idle and the second pic is under CPUZ Stress test.
I always monitor my temps during gaming and they average around 60. Haven't checked the voltages during gaming tho
 
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TRNQUL said:
Yes the ss have both, Idle and the second pic is under CPUZ Stress test.
I always monitor my temps during gaming and they average around 60. Haven't checked the voltages during gaming tho
Click to expand...
They look good.
It could be that the PSU draws too much for the UPS.
The 650 watt PSU OUTPUTS 650 watts....but draws quite a bit more than that from the UPS because it isn't 100% efficient.
 
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jay32267 said:
The voltages I mentioned are the top three in that screen shot.
The screenshot shows them good.
Was that taken under load or at idle?
I would also run it under a heavy load like a game or benchmark software.
When you run under load...most likely the voltages will go down.
You don't want the them going more than 5% below.
For 12 this is 11.4
For 5 this is 4.75.
For 3.3 this is 3.135.
Also HWInfo shows your temps as well.
You can also see if you are getting too hot under load.
Click to expand...
You also don't want them going more than 5% above either. ATX spec is +-5% of rated voltage rail.
 
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TRNQUL said:
Also would it matter if I plug in my UPS to a 5A socket or a 15A socket? No, right?
Click to expand...
That would make a difference. The 5A socket would be for lower power usage things like a monitor where as the 15A would be the tower. If you have the tower in the 5A then when it hits a load usage the socket won't be able to deliver. Either the circuit on the UPS will pop or the system could crash from a severe lack of power.
 
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Solution
jeremyj_83 said:
That would make a difference. The 5A socket would be for lower power usage things like a monitor where as the 15A would be the tower.
Click to expand...
My UPS (with tower connected) was on the 15A when crashing. I just put it in the 5A an dit seems to be working fine for now. Idk that's actually coz of the switch to 5A or that I'm just lucky that my culprit of crashes isn't acting up
 
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TRNQUL said:
My UPS (with tower connected) was on the 15A when crashing. I just put it in the 5A an dit seems to be working fine for now. Idk that's actually coz of the switch to 5A or that I'm just lucky that my culprit of crashes isn't acting up
Click to expand...
I spoke too soon, it crashed on 5A as well. Back to wall now. It seems like my UPS is just useless for now. Should I get my PSU fixed if that's the fault? It's under warranty.
 
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jeremyj_83 said:
I wouldn't fix that PSU. It is basically only good enough to be a paper weight. What country do you live in and what is your budget for a replacement?
Click to expand...
I'm in India. I'm still a student so my dad won't pay for it as long as it's under warranty 😂
So that's my only option for now. If it still tucks up, I'll have to convince him for a new one
 
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