I'm also running an older computer. A late 2008 era I7 920 and a Rampage II Gene X58 micro ATX motherboard! The upgrades I have done are 24 GB of memory an SSD

I'm also running an older computer. A late 2008 era I7 920 and a Rampage II Gene X58 micro ATX motherboard! The upgrades I have done are 24 GB of memory an SSD and a GeForce GTX 960. It works surprisingly well even today! I have been building a system piece by piece to replace this however, a Ryzen system with a 2080. Just need a few more parts and I'll transition to the new system...