TKFT

Yes I'm talking about the front panel headers on the motherboard. Since I'm pretty sure it's dead either way I might try and resolder the pins. Imo there was something else wrong with it there would be other obvious issues but it all works fine. It just likes to turn off. I ran a quick passmark benchmark and the results were in the expected range and the shutdowns don't appear to be tied to anything related to what the computer is doing. Like I said, it will happen in the uefi too. Could a bad bios chip cause this to happen?

No I reset the bios and disabled everything. Pretty sure my mobo is just dead and can't be fixed or saved. It's a 3800x, 4080 super, gigabyte arous x470 mobo, 32gb 3200 ddr4, nvme ssd.

Well not fixed still turns off just lasts longer before doing so. At a complete loss on what to do or how to fix it.

Then I'm sorta lost on what it could possibly be. And why can't there be a short inside the front panel header? Yes it seems unlikely but it's the only thing that makes sense. Also it's been working fine for the past 30 mins so idk maybe it fixed itself or maybe it will turn off again. I don't trust it.

Yes, they are all unplugged.

That is how I have been turning it on. I had initially thought my power button had gone bad and was shorting causing it to shutdown because the pc stayed on longer with the connector removed but it still ended up shutting down. Maybe something got in and on the pins or in there. It is sorta humid here so maybe some corrosion.

All the connectors are unplugged and the issue was still happening. My case doesn't even have a reset switch. I've switched the psu out, removed the gpu, unplugged every device besides the kbm. The issue has to be with the cpu, mobo or ram. I tried using only one stick of ram in and tried all 4 slots with each stick and the issue still happened. Tried using a different power cable, different wall outlet, surge protector, no surge protector. Cleared cmos, button a new bios battery in, pretty much everything under the sun. Now it could still be the cpu but the computer is perfectly fine right up until the just turns off and it definitely doesn't crash it's powering off. My mobo is no longer under warranty so I'm willing to do some surgery if it has a chance of working.

I should have specified, I haven't been using the power button to turn on the pc and my case doesn't have a reset switch. All the connectors are unplugged.

My computer just randomly turns off shortly after boot. Might last 30 seconds or might work for 30 minutes but it will also shutdown completely unprompted. The thing is it has no other problems, it appears to work completely fine right up until the point it just turns off. It will happen in windows, uefi, during post and anywhere in between. After hours of swapping components and testing and trying I've concluded my front panel header is the problem. While I'm not sure why it's happening I believe it is intermittently shorting out causing the computer to shut down. Usually I can turn it right back on but occasionally it won't work. Then after awhile it just works again. One thing to note is the PC never turns on by itself, only off. Because of this I've conclude it cannot be related to the power button pins. This leaves the reset pin but the pc doesn't reset, it shuts off so that can't be the issue either. I've also set in windows for the power button press to do nothing, meaning the pc shouldn't turn off from a simple power button press but that wouldn't effect a longer press. So what that leads me to believe somehow the motherboard believes the power button is being held down. How could something like that happen of the power pins dont get shorted? While I am not sure exactly how the front panel header works my best guess is only the pwrbtn+ is getting 5v dc when the pc is off (maybe chassis intrusion too) and when the pwrbtn-/gnd gets a 5v dc connection the computer boots. Looking at the layout the pwrbtn-/gnd is directly above the rstcon+. Once the pc is on and the rst+ is receiving power if it shorts to the pwrbtn- above it the computer will think the power button has been pushed and shutdown. If someone knows more about how this works please do share. To fix I think desoldering the reset+ pin has the best chance to fix the issue. I don't need it and AFAIK there is no why to disable them in bios. Seems extreme but I'm lost and out of options.

OK thanks I will try that again.

I figured that's what I would need to do but when I called they told me I needed to reinstall my old windows version. Should I try calling back to see if I get a different answer?

I recently upgrade my Windows 8.1 pro install to Windows 10 pro and everything went fine. A few days ago I need to RMA my motherboard for some hardware problems and switched to a different motherboard, CPU and ram temporarily. This caused my windows 10 install to become non active and required a reactivation. I tried my old windows 8.1 product key as well as using ProduKey to find my windows 10 key and using that. Neither of those worked so I called the support center and entered my install ID and get sent around till someone told me I would have to reinstall windows 8.1 and then upgrade again. That really doesn't work because I would prefer not to do a clean install so does anyone know how I can activate window 10. Also I purchased a retail version of windows so I know for a fact I am in full compliance with the licensing terms. It seems like my only option may be to get a crack for windows 10 if I can't.

Just going to say we don't use vacuums to transport data. Fiber(glass) has a speed of light of 66.67% that of a vacuum and copper ranges from 40%-70%.

OK, thanks for your help

I don't know if this is the right place for this but here it goes. I have been digitizing some of my movies and TV shows using handbrake and was wondering if there is any real disadvantages to using H.265/HEVC other then it being super slow (I assume because of no hardware acceleration). Also I have heard that mkv is better then mp4 but mp4 files seem to be smaller and are more compatible. So are mkv's better or should I use mp4. Thanks.