So far I have used 3 Asus mobos. Their software and BIOS are bad but the hardware is good and never had to RMA anything.
I have used 2 Asrock boards but one of them was a Atom Q1900 embedded ITX board and the current build is a Pentium G5400 on a AsRock Z390M-ITX in my home file server build but these are low power rigs which were/are always rock stable.
I messed up my the CPU socket pins on my MSI Z87-G65 board back in 2014-15 but MDComputers handled the RMA so there was no trouble for me.
I had a Gigabyte GTX 1070 Gaming OC which worked very well so I went for a Gigabyte RTX 2080 OC on an impulse buy as well. Now on hindsight I should have gone for the MSI Lightning Trio X which was a bit cheaper and a better card in terms of cooling and GPU clocks.
Now I have been facing an issue for the past couple of months. While gaming the GPU temp would reach the limit of 83C and the fans would ramp up to 4000 rpm which was noisy AF.
Tried MSI Afterburner custom fan curve to no avail.
Then after reddit suggestions I opened up the GPU cooler which is a first for me and saw that the thermal paste is so crappy that it has turned to stone.
On top of that the thermal paste covered maybe 60% of the die area in the middle. Even a newbie wouldn't make such a mess. The cooler doesn't have a Nickel plated heat plate like good CPU coolers but the die is in direct contact with the heatpipes. Its not bad for a cheap card but for a 83k card this is a bit much.
Please note that I took this pic halfway through my cleaning so the paste is spread out over the die but that wasn't the case when I opened it up.
Applied my Noctua NT-H1 paste and then on a 30 min OCCT GPU stress test the temp didn't exceed 74C and the fans went upto a max of 2000 rpm.
Updated the VBIOS as well just to be safe and I am all good for now.