If you want to take the board out of the case: remove the screws (obviously 😅) and then slide the board until it comes free.

They look like these

If it's a normal AT case you should remove the back plane, then like mentioned above slide the board and remove it.

Thanks a whole bunch. It was a bit more challenging than simply sliding it off the backplate though... There was a combination of those that slide and those that have to come out of the board vertically -- which they wouldn't, because the plastic caps that you're supposed to squeeze to release this stuff is all hardened now. In the end, all is good without breaking anything.

multiplebaboons wrote on Yesterday, 06:05:

Thanks a whole bunch. It was a bit more challenging than simply sliding it off the backplate though... There was a combination of those that slide and those that have to come out of the board vertically -- which they wouldn't, because the plastic caps that you're supposed to squeeze to release this stuff is all hardened now. In the end, all is good without breaking anything.

Put them in hot water for a half hour.

I am thinking to add normal standoffs instead of some of the plastic stuff...

They can be tightly fitting, but there is nothing wrong with that if you know how to work with them. If you are using an AT case, or ATX that still has the AT sliding slots, you don't have to remove them from the motherboard. If you have a proper AT supporting case, and the standoffs, you might as well use them. Be careful, as some AT motherboards mounting holes weren't necessarily designed for metal standoffs.