Retired

Think it's across the tracks to the left of B450M

Go to motherboard vendor and get chipset drivers, usb too if separate and install them.

Have you had a look with GPU-Z? - Do the clocks and bandwidth look right. - Is it running as PCIe 3.0 (not sure your MB would support 4) Use the sensors tab to see what is going on while gaming.

When you swapped your ssd into your dads machine did you change the boot order, if so did you change it back again when you put it back together again?

Do you have UEFI with secure boot enabled, on either or both of your PC's? Have you tried Startup Repair on your dad's computer after putting all of the hardware back exactly as it was before you tried swapping / adding parts?

If not overclocking the RAM then all you really need is 4 sticks with the same speed and timings, ideally the same make and part number. Dual channel or Quad channel kits have been tested together and certified to work as a set, in theory providing more reliable performance which you have you pay more for.

Any overclocking? If you can get into the BIOS try loading optimised defaults.

When you are at the 'MSI' screen is you hard disk drive doing anything, can you see an LED flickering, that might suggest Windows is trying to load?

Assuming that the CMOS battery is ok, but that the bios might have some errors, when you get to 'Setup or Continue' screen choose Setup. Look for something like 'Load Defaults' and if that is available then load and save them.

This any help?

https://www.amd.com/en/promotions/game-bundle-radeon

Guessing it's an RTX 2070, should be fine, if you are concerned you can buy things to prop it up: https://www.amazon.co.uk/upHere-Graphics-Anodized-Aerospace-Cards（black）/dp/B076GYL25H. For the longer cards with heavy coolers MSI supplies an addition stiffening bracket.

As long as your existing drivers are 456.38 or later then yes the 3080 will be recognized. 456.55 included the fix for cards that were boosting too high and crashing.

Problem with the NVidia cards is the somewhat unpredictable behavioue of GPU boost, especially if it doesn't hit a peak with the bench programs you run. I have MSI RTX 2070 Super, with +125 on the core and +750 on memory (1.5GHz overclock). Adding my core overclock to the stock boost for the card should net a boost clock of 1910MHz. In practice I have seen it boost to 2100MHz and hold 2050MHz almost continuously in demanding games as my temperatures were OK, conversely it has dropped down to 1915Mz when things got a bit warm (good airflow is important). The higher the overclock the greater the temp and the lower the boost clock i.e. going too high just generates extra heat and can result in lower overall performance and/or crashes. The Turing cards do like memory overclocks but you need to make sure that you aren't getting memory type artifacts which could be a precursor to failure. Use Kombuster burn-in test from MSI Afterburner and turn on the Artifact Scanner.

Starting round about 2008 with HD2600 in a Toshiba Sat Pro 200 - Played Crysis at 1400 x 900 everything low, on a good day reached high teens FPS (nearly 18) - Still have this and it's working really well (with Vista Ultimate) From 2010, with desktop, in order: ASUS HD4870 2 x ASUS HD4870 in Crossfire Gainward GTX295 (Blower type) - died after 3 weeks Gainward GTX295 (Centre fan) - replaced above card on RMA EVGA GTX480 Superclock EVGA GTX670 FTW Galax GTX970 Exoc MSI GTX1070 Gaming X MSI RTX2070 Super Ventus OC GP Still have all of these except the GTX295's