In this video I’m working inside my half rack that holds a few home servers plus several Supermicro CSE-836 disk shelves I use for Chia farming. These shelves didn’t come with rail kits, and I didn’t buy the official Supermicro rails because they were expensive. Instead, I’d been using APC rail shelves (the kind meant for UPS units), and while that worked great, it forced me to leave space between enclosures because the shelf protrudes just enough that you can’t stack the chassis tight like they’re meant to be. So I tried to “fix” that by installing a generic iStarUSA rail kit rated for ~24-inch servers and 85 lbs (my loaded shelf is about 70 lbs). I went through the whole process: unmounting my Chia drives, shutting down the enclosures, pulling and labeling drives, measuring the chassis centerline with calipers, drilling and riveting the inner rails, and even dremeling off old mounting tabs that were in the way. And after about two days of effort and downtime, it turned into a total failure—the CSE-836 chassis is simply too wide for these rails to engage properly. The big takeaway: measure the chassis width and rail thickness first, because “generic rails” aren’t always generic enough.