AvoK95

The one I linked is the 12nm version which is similar to the 2600X. Based on the money he was going to spend, he has the flexibility to upgrade to a 5600X if he ever wants to while still having a decent upgrade over his 3770K

You can get a Ryzen 5 1600 with a B450 and 16GB RAM for less than 280. https://pcpartpicker.com/list/mLzm2V

You will be fine with the 3600. A faster CPU on a slower GPU won't cause any issues. Bottleneck is just the slowest component of the system limiting it from performing better. In your case your GPU is your limit, however this doesn't mean your system will be slower, it just means that if you are running a GPU intensive task, you are limited to how fast your GPU is (which is the case with any GPU). There are people running 3070 3080s on those CPUs. The 3600 is a very good value for the money, don't consider upgrading until you are limited from having a card that too fast.

You cannot RMA a motherboard if the CPU being used on it is not officially supported by the manufacturer. AMD themselves claimed that the A520 is not compatible with the 2000 series. Like everyone else said, wait for the 3600 to arrive. What you can do while waiting is to try a BIOS update to see if they did any improvements on the stability of the 2400G or at least avoid any trouble with the coming 3600.

Some motherboards also have a pin for reseting the BIOS. Some also have buttons, look for that. Easiest thing to do is to download the manual from their website.

The E5-2678 v3 is a much faster CPU than the 3770K, however it depends on your usage. Xeons aren't made to be used for tasks used by the normal user, they're made for server-like tasks. It might be very good for developing and multitasking, but would most probably suck at gaming. You can get a cheap LGA1155 motherboard to run a second rig with your 3770K for gaming. But why don't you just save the money and go for a Ryzen 5 or an earlier Ryzen 7 with a B450/B550 motherboard? I'm sure it's not that much more expensive.

Older computers (I'm talking really old, as in early 2000s or earlier) had most of the power be used from the 5V rail instead of the 12V rail. Newer computers have beefier 12V rails while older ones had beefier 5V rails and didn't need that much current from the 12V rail. However I have many old computers still running fine on modern power supplies as they didn't use that much power as they do now anyway.

Try cleaning the PCI Express contacts on the card with a rubber earaser and rubbing alcohol. If that doesn't solve it, your card is the problem. Most probably a bad GPU chip or memory chip(s).

SSDs can just die like that, they are a wear item. I have had many die on me like that from several people.

Try pressing the small button next to blue CMOS battery for 5 seconds to reset the power to the motherboard. Check your RAM aswell, DDR3 modules are weird like that sometimes, especially on Toshiba laptops, you have to really shove them in the slot.

The CPU should be fine with that graphics card at 1080P if you're going to use it for games. I have a client who's still on a Sandy Bridge 2400 and he just upgraded to a GTX1080 last year, it's running fine. Of course, you would get slightly better performance with a higher end CPU, but the i5 shouldn't cause any problems or frame drops/spikes.

Microsoft seems to be working really hard to make Windows decent

I'm on 4.6 1.285 (however CPU-Z says it's 1.328) and it's been stable all day (still under Prime95). My max temp is 86 on my old TT Contact 29 with push-pull setup. It gets to those temps on stock on the stock cooler, meaning Intel passed it through quality check. So it should be fine. But If you don't like fans like I do, get a few better quality fans and run them at low RPM to have some passive airflow to be fed to the heatsink. I have 2x front 2x side and 1x back and 1x push CM Cycle Flow fans in my case running at the lowest RPM. With the stock TT fan as pull and fed to the exhaust. My rig is dead silent on idle. And very whisper quiet on games. (Mostly because my GPU is needs a good cleaning). But even quieter when rendering clips using Lightworks. So think about your setup before buying anything, because it just might be something simple as an unoptimized fan setup

Wow, they look really impressive. I thought you were using a DSLR and pro lighting :mellow:

What camera and lighting are you using? *Off-Topic *