Solution

It was probably my motherboard. I got a new CPU and motherboard and it worked. I also upgraded from DDR3 to DDR4 ram in the upgrade process

Background

So my computer is not posting, and I am unsure the cause. I am not getting an error code, so that complicates things. I do not know if this motherboard will provide post codes, it does not have a seven segment display for providing post codes.

How it started

It just randomly stopped displaying any pictures, unsure if it happened while in use or when the computer was asleep. I was doing stuff at my desk and had music playing on my computer. The music ended and I did not put on more music and the monitors went to sleep. Later when I went to use my computer It did not appear to wake up, I tried fully shutting down and turning on my computer, and that is when this problem occurred.

Symptoms:

• When I power on, computer appears to start normally, with all fans spinning so power delivery appears to be working. Even GPU fans are spinning.
• Holding down the power button turns the computer off as normal.
• Nothing is displayed on the screen, my monitors do not even detect an input.
• USB devices do not appear to be powering on.
• Every minute or two, the GPU fans ramp up briefly, and then ramp down. It may be all fans are ramping up, kind of hard to tell exactly which fans are ramping up.
• With the AMD GPU, the LEDs for power turn on. However, I vaguely recall the GPU itself having some RGB when the system was running that was not on. How my computer was setup I did not see inside my case that often, so the RGB on the GPU is a vague memory from a few years ago and I would not put much weight in there being some RGB.

Hardware:

• MOBO: Gigabyte 9900FXA-UD3
• CPU: AMD FX-8350
• GPU: ASUS Radeon HD7870 or EVGA GTX 970
• PSU: Cooler Master Elite V2 550W

Troubleshooting Attempted:

I initially assumed it was GPU related as the computer appears to turn on normally, but then nothing is displayed. So another user shipped me his old GPU (the GTX 970), and I swapped it out with my old one, and the problem persists.

I tried swapping out the RAM

I tried a brand new PSU and that also did not solve the issue

Leading hypothesis

Since I have changed everything out except CPU and MOBO, I am thinking it is probably my MOBO. I am currently researching my options for replacing my MOBO, or a friend offered me his CPU and RAM from his old rig with a broken MOBO that may be a better option than replacing mine.

Sorry in advance if this is kind of a ramble. Thanks for any thoughts you may have.

This post asking about specific hardware made me realize that I have lost touch with major architectural changes in PC hardware. Back in college (over 20 years ago), I was constantly upgrading and rebuilding computers, talking about them, reading about them. But that's probably par for the course in a EE program. I'm sure there must have been other online resources, but Slashdot is the thing that sticks out in my memory of that time.

Then in grad school, my last set of desktops from college carried me through the first few years, and I had a series of laptops provided by school.

Since then, I've always just bought laptops because they've gotten good enough to do everything I want, and with kids, it's much more flexible to be able to work anywhere in and out of the house. My latest (now several years old) has a high end I7 cpu, an NVIDIA GPU, two solid state drives (1.5TB total). It weighs just a few pounds and does everything I want, including things like Solidworks, zbrush, and older PC games.

Since I can remember a time when I was excited about 90mhz processors and feeling like I was getting a screaming deal to pay $500 for a 500mb hd, sometimes it just feels surreal for this to be so normal.

So, am I out of the loop? Or is this reflective of a more general shift? What do you read / where do you post to discuss hardware, hardware compatibility, etc. Are you still building desktops? Laptops? Cyberdecks? What are your thoughts on cost/value trade off of dell, etc. vs rolling your own?

I am planning to go back to a desktop after using laptops for years.

I already have an 1080p IPS monitor. I want just the tower.

There is the new Zen 5 coming out soon.

I was thinking about buying a Ryzen 7600 and maybe buy a GPU in the future if I want to play heavier games. The Ryzen 7600 has integrated graphics for basic things.

My main use now is just some casual gaming (Afterimage, Hollow Knight, Fallout 4), movies, browsing the web and compiling some software (Gentoo Linux).

I use exclusively Linux and I want to keep using AMD.

Should I wait the Zen 5 to come out and see if the 7600 price drops or this probably won't happen?

I know it isn't a good habit. I like to watch movies, "T.V. shows" on my computer. It was never a problem with older style monitors.

However with newer style monitors ( like I have ) and T.V. screens you either have to be far away from the monitor or be sitting up straight for the images not to fade. Worse, you can't see anything with night scenes.

Anything I can do about it aside from buying a hug TV and sitting on a couch at the other end of the room?

Update: I got the monitor /user/ButteredToast recommended. It works noticeably better than my old monitor and the price was very reasonable