PC not booting, loud fans, no HDD light or display

[AxolotlStudios]

I was copying some files over on the family HP Pavilion to my HP 14 laptop via SD card. 30 minutes later I come back to the PC with a BSOD of IRQL_NOT_LESS_OR_EQUAL. (The desktop is about 5 years old so I doubt the hard drive is failing.) It was going to do the automatic restart but it froze at 25%. I manually rebooted the computer with the blue HP loading logo. It faded to black but it froze there. I manually restarted it again only for no input to be displayed, no hard drive activity light, no POST errors. All I heard was the hard drive and CD drive noises that it always does on startup, but the fans were on high speed. The same thing happened to me last year in July, so I assume with loud fans the system must have overheated, as I inspected the fans were full of 5 year old dust. I don’t know what happened this time? 

[WAWood]

@AxolotlStudios 

Software failures will generate on-screen messages, usually about not finding an Operating System or not being able to boot. When the screen is blank, the PC is experiencing a major hardware failure.
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To determine the cause with hardware failures, you have to be able run diagnostics. We have no way of accessing your PC from here, so we can not do that for you. You have to do it yourself.

You do this by pressing the Esc key repeatedly when rebooting and then, when the HP Startup Menu appears, selecting Diagnostics (usually F2) and letting it run.

If it is NOT possible to run diagnostics, or if that does not work, then there is NOTHING more you can do by yourself -- and there is NOTHING we can do because we have no way of accessing your PC from here to run diagnostics or repair hardware.

You will need to have the PC physically examined in a service facility by folks that can run their own diagnostics to determine what is wrong with it.

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If your PC is still under the original one-year HP warranty, or if you have purchased an extended warranty from HP and this is still valid, then having HP do this is an inexpensive option for you. In that case, you should contact HP Customer Support to see about having it repaired or replaced under warranty.

To contact HP Support see the following link to create yourself a case number:
Step 1. Here is the link: https://support.hp.com/us-en/contact-hp
Step 2. Enter Product number or select to auto detect
Step 3. Scroll down to "Still need help? Complete the form to select your contact options"

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If your PC is no longer under warranty, then it will cost you up front to have HP examine your PC. If you want to do that, you will have to contact an HP Repair or Service Center to see if they can examine the PC to determine the cause(s) of the problems, if it can be repaired, and an estimate of the repair costs.

Since you live in the U.S., here is a link to the HP Service Repair Centers:
https://www.service-center-locator.com/hp-hewlett-packard/hp-hewlett-packard-service-center.htm

If that link does not provide the results you want then use the main HP link:
https://support.hp.com/us-en/contact-hp?openCLC=true

Good Luck