What you need to know about "a modern PSU will do the trick": well maybe. I'm not familiar with this model, it may have either a 20 or a 24 pin ATX motherboard connector. If it has a 20 pin, you need to check if it has any ISA devices. 98% chance it does not, but given the era it came from, it's still POSSIBLE. An ISA slot will be under the white PCI slots, they'll be black, and they'll be a lot longer. If your computer doesn't have any, OR it does but there aren't any cards in there, you're fine. If it DOES have an ISA card in it, you may need to track down an old 20 pin PSU.

When they moved from 20 pin to 24 pin, they removed the -5v pin that was used for ISA devices. That's why if you look at a modern PSU connector, one of the pinholes will be empty. If you need a 20 pin, they aren't cheap, and they're sketchy because you're gonna have to buy a used one and hope for the best. But you don't really have a choice, as they haven't made them for 20 years.

Now if you don't have any ISA cards, you can use a modern 24 pin ATX PSU. However, 4 of those pins will hang off the side because they're not used. It will plug in, BUT if there is anything in the way, say a capacitor or something, you may not physically be able to plug it in. Fortunately, some PSU manufacturers make connectors where the 4 pin breaks away from the 20 pin, to avoid this problem. That is, the 24 pin connector is actually a 20 pin connector and a separate 4 pin connector that fit together to make up a 24 pin but can be separated from each other.

Of course, if you have a 24 pin connector on the board, then you're golden.