Magician not being able to flash the drive seems quite a big clue. But you're not the only one...

I'll check your log tomorrow as it's midnight for me as well, Nederland weet je?

Download the HWiNFO64 installer, install and run it, on the first screen uncheck "Sensors only", then click Run.
Next check in the Bus section what's all using PCIe lanes and how many.

4) Why does BOINC work fine on SSD (SATA) and HDD (SATA) but not on M.2?

BOINC worked fine on both my Samsung SSDs, one NVMe M.2, one SATA.
How do you have everything connected? Your HDD and optical drive are connected to which SATA ports?

Furthermore, your motherboard details warn:
SATA1 port will be unavailable when installing SATA M.2 SSD in M2_2 slot.
PCI_E6 slot will be unavailable when installing PCIe M.2 SSD in M2_2 slot.

Did you install Samsung Magician and check if the drive needs a firmware update? Also check the drives for errors.

You would think there would be an error about the data if there was no more data to be seen on D:

Well, there is, BOINC would prompt you that there are no projects added, and make a new data directory. But before it can get there it has to go through its startup routine, among which is the detection of the GPU(s). And if it fails there, it'll just exit.

I've been through the idea of used up PCIe lanes. But that does not make sense. A Ryzen 7 3700x has 24 lanes. The GPU's (1080 and 1050) use 8 lanes each. The CPU uses 4. That's 20. There should be 4 left.

SATA and USB (as well as Ethernet, Thunderbolt, U.2, ExpressCard and OcuLink) use PCIe lanes as well.

But, having said that, the GPU error you get may indicate you have a memory error on one of the GPUs or a problem with your video card driver.
I'd check the latter first, as that's easiest solved: just download the newest Nvidia driver and clean install it for both GPUs.

Else, check your GPU's memory: this site has 6 free programs to check your GPU memory (and it's written by HAL9000, I see).

Edit: after you moved your data directory to the M.2 SSD, did you tell BOINC (via the installer, or registry) that this is the new data directory?

1. Create a venue over at RAH: "School" and select only Python <-- not possible. RAH does not have that option. If it did I would have tried that already. You can not isolate Python from 4.2 tasks. I already tried to exclude 4.2. BOINC just coughed up errors. I can do the rest however. New profile and suspend everything else.

Bummer : I was not aware of that. Just went over there and read the following quote

Rosetta@home does not currently divide its tasks into sub-projects that users can select

Obviously there is injustice in having some projects suffer because only a few users wants to contribute to them Clearly this project and its administrators are fully Woke to this injustice!

That means my way or the highway and I took the highway long ago.

The following might not work in R@H project directory (app_config.xml) but you could try it.

<app_config>
<app>
<name>Woke</name>
<max_concurrent>1</max_concurrent>
</app>
</app_config>

There will be an error message "No Woke projects" and POSSIBLY there will be a list of sub-project names that can be used to exclude.

At least this works on other projects. They print out the names that can be used. I they spell out something like "RH4_2" then put that in place of "Woke" and only one of those 4.2 will be run. Hopefully you will get a viperload of Pythons.

HTH

When Python first came out, I got about 10 tasks.
Then all of sudden they no longer came to my system,
Nothing has changed in the setup. I have current Vbox since I run LHC ATLAS and never had any problems with Vbox in the past.

Re-posting the same issue on every forum you can find probably won't fix it.
More likely, freeing up memory and trying the other suggestions will. The BOINC scheduler is also rather particular, and won't download some work if you tie it up on other projects.
I would think you should have found that out already though.

RAH could easily stop sending 4.2 tasks and put Python in and there would be enough memory for a mix of Python and 4.2. But I get 0 Python these days

RAH is native to Windows. Python runs in Vbox only. The project cannot just swap a Python for an RAH like you suggest. Vbox has a say in what it wants and allows. It is not allowing any Python tasks and only it knows why?

Taking a guess: Can you log onto the guest OS and check resources? I assume it it linux or whatever or (got help you) Max OS. I can not help with any of those OS'es


What you should do if you want to sell car, house, spouse, and everything you own for the love of PYTHON

1. Create a venue over at RAH: "School" and select only Python
2. Set your system to use the "School" venue
3. Suspend all other BOINC and FAH tasks
4. Reboot
5 Wait (don't hold your breath) for some PYTHON to start up

Once you got a bunch of PYTHON running, then resume all other tasks and start looking for error messages and / or tasks that are refuse to run. If FAH no longer wanting to run go ask over at FAH what is going on.

1. Create a venue over at RAH: "School" and select only Python <-- not possible. RAH does not have that option. If it did I would have tried that already. You can not isolate Python from 4.2 tasks. I already tried to exclude 4.2. BOINC just coughed up errors. I can do the rest however. New profile and suspend everything else.

RAH could easily stop sending 4.2 tasks and put Python in and there would be enough memory for a mix of Python and 4.2. But I get 0 Python these days

RAH is native to Windows. Python runs in Vbox only. The project cannot just swap a Python for an RAH like you suggest. Vbox has a say in what it wants and allows. It is not allowing any Python tasks and only it knows why?

Taking a guess: Can you log onto the guest OS and check resources? I assume it it linux or whatever or (got help you) Max OS. I can not help with any of those OS'es


What you should do if you want to sell car, house, spouse, and everything you own for the love of PYTHON

1. Create a venue over at RAH: "School" and select only Python
2. Set your system to use the "School" venue
3. Suspend all other BOINC and FAH tasks
4. Reboot
5 Wait (don't hold your breath) for some PYTHON to start up

Once you got a bunch of PYTHON running, then resume all other tasks and start looking for error messages and / or tasks that are refuse to run. If FAH no longer wanting to run go ask over at FAH what is going on.

I don't think fah is a boinc app so it does not know about its resource needs correct?

Correct. FAH and BOINC studiously ignore each other's existence. If both are running on the same machine, each will assume that it has exclusive use of the resources found. Everything will be double-counted, and, roughly speaking, everything will drop back to 50% efficiency or worse.

Each platform would need to be manually restrained to work within whatever proportion of the machine resources you are willing to assign it.