Weird booting issue

adrianlacatus77

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Hi MSI community. I have a strange issue happening on my brand new build, and I thought I'd come here to ask for help since I don't know where else to turn. Googling did not turn up very much useful info since this is a very specific issue. I did find another user with an identical situation which I will post a link to below. Onto my problem.

So after spending the better part of this last weekend building my new PC I ran into this issue. Every time I unplug the PSU and then plug it back in the PC does not turn back on. It was driving me bonkers yesterday as I spent the better part of this weekend building this rig and after getting it all done and running some tests I unplugged it to put it on my work bench. I was tiding up cables and putting the back and front glass panel on the tower. After finishing I plugged the PSU back in turned the power switch to on but nothing. Not the fans not the mother board, nothing was turning on. I noticed that my external HDD(USB plugged in) little led light was blinking though and so was the dongle to my Logitech wireless headset. So I don't know what that means. It seemed to have power but it wasn't turning on.

Things I tested to eliminate x, y and z:
- checked front panel connectors to make sure the power switch was hooked up the right way
- tested the new board with a back up working PSU(did not work)
- tested the new PSU(from new PC) on an back up PC( it turned on)
- tested new GPU on the back up PC( it also worked)
After exhausting all avenues to my knowledge I finally got it to turn back on by pulling the motherboard battery out for over a minute. After reinserting battery and hooking up all components again it finally turned back on.

Now I am afraid to unplug this PC ever again. But know I won't have a choice when I'll have to do my monthly cleaning /dusting of the entire PC. I figure most would think it's the PSU but I haven't experienced any BSOD or unstable performance issues while game testing. Basically the new build works flawless until I unplug the PSU.
Here is the link to the only other post on the internet I found of this issue. It's 10 years old but maybe still relevant: https://www.techsupportforum.com/th...power-cord-even-when-computer-was-off.467157/
I tried uploading a screenshot in this thread but got some weird error that "something went wrong and need to contact administrator"???8/ The screenshot is of my Bios setting in Power Management Setup. There is a setting called "Restore after AC Power Loss". Mine says "Power Off" by default. If you guys read the link I posted you'll see how similar(basically identical) this other user's experience was, and he fixed it by adjusting this setting to Power On or enabled. Just wondering if anyone else has experienced this issue and if anyone can shed some light I would be very very grateful!

-MSI Z490 Gaming Edge Wifi(Bios ver: E7C79IMS.1A0 / Build date: 10/19/2021)
-I7 10700K
-MSI RTX3070 Gaming Trio X
-Corsair Vengeance LPX 32GB DDR4 3600MHz
-PSU: Corsair CX750M

PS. I was also wondering if turning on Game Boost and XMP from bios would affect it. I have turned them off since this issue but would like to try them out.
 

teletubby_po

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if you want the system automatically boot up after AC recover, you need to set "Restore after AC power loss" as Power on
 

adrianlacatus77

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OK thanks for reply. But what I'm wondering is if that setting is what's causing this issue, why is it set to "Power Off" by default. Whether building a new PC or cleaning your current one, everyone will have to eventually unplug their PC and plug it back in, so why isn't it turned on by default?
 

teletubby_po

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normally i would use the power switch on the chassis instead of PSU power switch to turn on the PC. do you keep flipping the PSU power switch or unplugging the power cord?
 

adrianlacatus77

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I know my post is fairly long but it seems you missed the part about me building a new PC. Had to unplug the PC a few times while running tests and had to hook up a DVD player so I can install MSI motherboard network drivers because I couldn't get to the internet without them. Every time I did so the PC wouldn't turn back on. A couple of times all I had to do was flip the power strip(surge protector) the PSU was plugged in off and then back on and the PC started, but the last time..... it didn't work. I unplugged my new build a total of 3 times. The first 2 times the power strip trick worked the last time it didn't and I had to pull the motherboard battery for a minute or so. After that it turned back on. It's just weird I never experienced this before and I've been building my own PCs for 15 years:) Just trying to pin point what could be causing this abnormal issue. Maybe my PSU isn't enough to run this set-up? Is 750W good enough for my setup and this motherboard?
Don't know; hard to pin point this @#%&. Thanks for trying to help anyway
 

Alan J T

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Sounds more like a faulty case switch or the pins on the board to power on the PC are damaged or faulty Unplug the Front Panel power switch and reset connectors and see if it willpower on if you just short pins 6 and 8 on JFP1

1637833409276.png

1637833471953.png
 

Alan J T

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OK thanks for reply. But what I'm wondering is if that setting is what's causing this issue, why is it set to "Power Off" by default. Whether building a new PC or cleaning your current one, everyone will have to eventually unplug their PC and plug it back in, so why isn't it turned on by default?
So if power goes off and your not home PC will not turn on short out and burn down you house, Now if you turn it on in the bios then it becomes your problem if that happens as the manufacture can say well if power went off then PC will not turn on by itself when power is restored unless the owned changed a setting telling it to.
 

adrianlacatus77

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Sounds more like a faulty case switch or the pins on the board to power on the PC are damaged or faulty Unplug the Front Panel power switch and reset connectors and see if it willpower on if you just short pins 6 and 8 on JFP1

View attachment 153893
View attachment 153894
Hi Alan. The front panel connectors was the first thing I looked at:

"Things I tested to eliminate x, y and z:
- checked front panel connectors to make sure the power switch was hooked up the right way
- tested the new board with a back up working PSU(did not work)
- tested the new PSU(from new PC) on an back up PC( it turned on)
- tested new GPU on the back up PC( it also worked) "

Besides that the power switch works flawlessly if I don't unplug my PC. Since I started this thread the PC has been normal(because I haven't unplugged it at all) . I have shut down the PC(from Windows) and restarted it from Power switch a few times to test it out, It works. Power switch works normally unless I unplug PSU.

So if power goes off and your not home PC will not turn on short out and burn down you house, Now if you turn it on in the bios then it becomes your problem if that happens as the manufacture can say well if power went off then PC will not turn on by itself when power is restored unless the owned changed a setting telling it to.
Ok so what do you keep that setting turned to? Do you keep it enabled or disabled? I'm talking if you go into your BIOS right now, is your own PC setting for "Restore after AC Power Loss" enabled or disabled?

PS. I appreciate everyone chiming in and trying to help!
 

Alan J T

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Hi Alan. The front panel connectors was the first thing I looked at:

"Things I tested to eliminate x, y and z:
- checked front panel connectors to make sure the power switch was hooked up the right way
- tested the new board with a back up working PSU(did not work)
- tested the new PSU(from new PC) on an back up PC( it turned on)
- tested new GPU on the back up PC( it also worked) "

Besides that the power switch works flawlessly if I don't unplug my PC. Since I started this thread the PC has been normal(because I haven't unplugged it at all) . I have shut down the PC(from Windows) and restarted it from Power switch a few times to test it out, It works. Power switch works normally unless I unplug PSU.


Ok so what do you keep that setting turned to? Do you keep it enabled or disabled? I'm talking if you go into your BIOS right now, is your own PC setting for "Restore after AC Power Loss" enabled or disabled?

PS. I appreciate everyone chiming in and trying to help!
I have it set to Disabled as I do not like the idea of it powering up if there is a power loss something that may happen if the UPS runs flat on extended loss of power. Have never had any problem turning on the PC with the Case power button even after maintenance or hardware upgrade.


Current Power settings on my PC will have to look for the other power setting screen shot
1637901208851.png

1637901284421.png
 
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adrianlacatus77

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Hey Alan thanks dude for the pics. That's what I was afraid of. I haven't fiddled with it yet. But I think it may be the PSU in my case. I really never looked at PSUs like I did with other PC components. God knows how much we all love our GPUs, CPUs and motherboards. Even memory and nvmes but I was never the one to look at PSUs too much. Always just bought the recommended watts and moved on. Come to find out they are rated(80PLUS/Bronze, Gold, Platinum, Titanium). My current one is 750W but Is 80Plus Bronze. I think it's definitely a good PSU but it is a lower budget model. I've had one BSOD and one instance of weird screen artifact playing Wildlands. So maybe it's my PSU
Went out and bought an EVGA 1000WGold. Gonna try it out and see what happens. If anyone has any other input I would be happy to listen.

Also I noticed you have an older BIOS version installed(6/17/2021). I have heard something about current bios version/s that were bricking only Z490 motherboards. Don't know if that's still happening or if MSI has fixed that issue. Hoping that's not what's going on with my system
 

Alan J T

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Also I noticed you have an older BIOS version installed(6/17/2021). I have heard something about current bios version/s that were bricking only Z490 motherboards. Don't know if that's still happening or if MSI has fixed that issue. Hoping that's not what's going on with my system
Current BIOS is .193 for my AMD system I am actually using a unreleased BIOS Current BIOS for my Board is AMD ComboAM4PIV2 1.2.0.3c. but I am using AMD ComboAM4PIV2 1.2.0.4 at the moment.
And as you have a Z490 I advise you not to update the bios as several boards have been bricked with one of the bios version for that Intel Chipset
1638108633359.png
 

adrianlacatus77

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OK that makes sense. I should have realized that since you run an AMD setup. As for updating my BIOS...too late. I found out about the bugged updates after the fact:) I used Dragon Center too:)) Double whammy! But my PC is running ok for now. Once I try new PSU if it keeps acting weird then it's time to replace the motherboard

Edit: So what is the latest stable version for Z490 Intel chipset?
 

Alan J T

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OK that makes sense. I should have realized that since you run an AMD setup. As for updating my BIOS...too late. I found out about the bugged updates after the fact:) I used Dragon Center too:)) Double whammy! But my PC is running ok for now. Once I try new PSU if it keeps acting weird then it's time to replace the motherboard

Edit: So what is the latest stable version for Z490 Intel chipset?
umm not sure but some other members may know @citay may be able to suggest something
 

citay

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So what is the latest stable version for Z490 Intel chipset?
The latest 100% safe update was the one before "Improved Audio compatibility" in the changelog. So the one with the changelog "Update ME 14.1" etc.
Right now it should be the 4th newest one.
 

adrianlacatus77

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The latest 100% safe update was the one before "Improved Audio compatibility" in the changelog. So the one with the changelog "Update ME 14.1" etc.
Right now it should be the 4th newest one.
Ok thanks citay & Alan JT. Hate to keep bugging you guys but what should I do? Is there a way to uninstall or revert to an older bios update? Do I even need to? My pc is ok other then the issue I posted about.
 

citay

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If you're already on a newer BIOS than the 4th oldest one, there's nothing to worry, just stay on that version and don't update to an even newer one for the time being, until MSI fixed the issue for good.
The Z490 BIOS problem can only occur during the flashing process itself. Once the new BIOS is on there and the board boots, everything will work normally.
 
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