[SOLVED] Anyone know the issue of related to shut down the PC requiring a discharge or cooldown period?

kosanovskiy

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Jun 28, 2013
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Nearly every shut down my PC does a hard shut down and requires a discharge/cooldown period before it can be restarted, this cooldown takes usually 2 or so hours.

This happened a few times before but previously I thought it was a case grounding issue so electric tapes all loose connectors and covered and re organized everything. That did not seem to fix the issue but as I never turn of the PC the issue never fully bothered be.

This became a prominent issue a few days ago where the PC started freezing up randomly and become unresponsive but not BSOD. At this point I would need to shut down by holding the power button. Upon the forced shutdown the pc would make the sound/act like a regular slow shut down but then it would all just stop and go dark (ie. rgb instantly off, fans, hard drives, aio water pump, everything). Usually pressing this method would slowly power things down but this just cuts away like the power was pulled from the plug, which it wasn't and is connected to PSU.

Issue is when pressing the button to restart the system there is reaction from the computer or peripherals. Only this is the WiFi light on the back of the motherboard lights up and nothing else. Previously I was able to pass this by manually replugging the AC cable to the PC and using the discharge button as well as resetting the CMOS on my PC but this now stopped working. The only way to get the computer to turn back on is by pulling the cable from the PC and then waiting for a few hours for it to discharge/cooldown and then the the PC will curt on may it be the power button on the mobo, shorting the pins or the front panel button. However the next freeze or restart the same thing will happen once again, and another 2 hours minimum wait. And then upon plugging in the motherboard LED (power, discharge, easy OC buttons) if they flash the system will book, if not then another 2 hour wait.

At this point I am not sure what is going on and I already used multimeter to check for bad PSu cables and even replaced some that I couldn't get a good read on. At this point really stumped and nowhere online (that I could find) see similar symptoms.

Any advice or tips what is happening? Tried the following
-I personally have a feeling maybe the motherboard but placed it into another system and ran without issue.
-I have tried XMP disabled all OC removed from everything and 1 stick of ram as well.
-Confirmed the RAM works
-Replaced cmos battery 4 times
-Reorganized what I could cable wise in the case
-Reinstalled drivers for GPU and reseated
-CPU and AIO reseat
-PSU worked fine from using it in another system
-Ran system in most basic settings and safe mode with only the necessary hardware and still same issue persists
-I have a system speaker in the case which isn't giving me any POST Beep codes


My thoughts is at this point might be some software incompatibility maybe causing this but even then I have never heard fo software messing with the turn on restriction.


My system:
4790K @4.5ghz
MSI MPower Z97 MAX AC Mobo
MSI Gaming Trio x 2080ti
gskill 2133 mhz DDR3 16gb
EVGA 1000W PS PSU
H100iV2 aio
Corsair c70 Case
4xn octua nfp12
2x noctua nfp14
2x Cougar 120mm fans
1x 2tb 850 pro ssd
2x 750gb intel 730 ssd
4x 8tb WD red
1x 5tb Toshiba x300


Update: After all the testing and everything have to RMA the board (which is out of warranty and MSI is refusing because 2 years after warranty expire). It was not a issue of VRM those were fine and nothign with cooling. Issue was the board was not grounded in the case because seems liek after make assemblies one of the pins/prongs on the back of the motherbaord either bent to much or broke off partially and was coming in contact with some stuff and that caused the grounding issue. Unfortunately as it was already bent to much and board so might have to re solder the weird broken pin and see if that fixes it. Until them I am keeping the case full open and nothing in contact with mobo and the computer is running ok ... for now. Ty for the help.
 
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Solution
The OP mentioned a UPS...

UPS or PSU?

If you have an UPS (Uninteruptable Power Source, i.e., battery backup power unit) feeding your PSU, bypass it, you might be exceeding it's capacity.

As for the PSU, try another one, any brand can fail, regardless of the name and added superlatives like 'Platinum' or Gold, etc.) If you try another PSU, do NOT reuse/mix and modular cables from the old PSU with the new one.

VRMs are more likely to overheat when folks are relying on watercooling, as VRM circuitry gets little air across power modules....; instead, open your case, and blow a fan at mainboard. If it still shuts down, VRM overheating probably not the issue.

You might also check that you have no 90-95W TDP power limits engaged in...
The OP mentioned a UPS...

UPS or PSU?

If you have an UPS (Uninteruptable Power Source, i.e., battery backup power unit) feeding your PSU, bypass it, you might be exceeding it's capacity.

As for the PSU, try another one, any brand can fail, regardless of the name and added superlatives like 'Platinum' or Gold, etc.) If you try another PSU, do NOT reuse/mix and modular cables from the old PSU with the new one.

VRMs are more likely to overheat when folks are relying on watercooling, as VRM circuitry gets little air across power modules....; instead, open your case, and blow a fan at mainboard. If it still shuts down, VRM overheating probably not the issue.

You might also check that you have no 90-95W TDP power limits engaged in BIOS...
 
Solution
Easiest way without board sensors it to place a fan over them.
Normally the CPU fan blows air over them, but AIOs have no fan there.

I'll try to change the airflow from back to front then and have air blowing over them. My mobo though has the weird liquid pre made loop from the factory so I'm not sure how useful the air blowing in from the top and back would work.
 
The OP mentioned a UPS...

UPS or PSU?

If you have an UPS (Uninteruptable Power Source, i.e., battery backup power unit) feeding your PSU, bypass it, you might be exceeding it's capacity.

As for the PSU, try another one, any brand can fail, regardless of the name and added superlatives like 'Platinum' or Gold, etc.) If you try another PSU, do NOT reuse/mix and modular cables from the old PSU with the new one.

VRMs are more likely to overheat when folks are relying on watercooling, as VRM circuitry gets little air across power modules....; instead, open your case, and blow a fan at mainboard. If it still shuts down, VRM overheating probably not the issue.

You might also check that you have no 90-95W TDP power limits engaged in BIOS...
I have a new UPS 1500 VA 900W and tested my PSU (1000W PS EVGA). I also tried a 850rm and still an issue even in most basic configuration and safe mode after running for for only 3 hours. Real temp85 and precision shows CPU max 60C and GPU 54C.

Checked TDP and not an issue.

VRM thing came up a few times so I will be trying to re configure the airflow and test this. Will return.
 
Sounds like cooling is an issue.
How certain are you that your H100 aio is functioning properly?
At idle, you should see 10-15c. over ambient.
HWmonitor will tell you your current, minimum and maximum cpu temperatures.
If it ever gets to 100c. the processor will shut down or throttle.

When you press and hold the PWR button for 5 seconds you get a hard power off. Just like you would if the house power failed.
 
Sounds like cooling is an issue.
How certain are you that your H100 aio is functioning properly?
At idle, you should see 10-15c. over ambient.
HWmonitor will tell you your current, minimum and maximum cpu temperatures.
If it ever gets to 100c. the processor will shut down or throttle.

When you press and hold the PWR button for 5 seconds you get a hard power off. Just like you would if the house power failed.

Temps are good under load max 68c. No load 38-40c ambient room temp is 74F.

Yes but same thing happens when using the shut down or restart from the OS options/commands. And on restart it just shuts down and no restart.

so far I’m jerry rigging VRM cooling but at the time no changes.
 
Try taking the case covers off and direct a house fan at the innards.
If that helps, look to case cooling issues.

If you need a cooldown time, then it certainly seems to indicate a thermal issue.
Is it possible that you have a PSU issue?
Your psu is a good one that should not have any issues.
Can you test with a different known good psu of sufficient capability?