So I had an old Dell e521 collecting dust for a couple of years. I had already upgraded it as far as it would go. It had a Athlon x2 6400+, 4gb of ddr2, an antec green 450w power supply and a hd 6770.
So i was perusing Letgo and came across a motherboard for an optiplex 380 with 4gb of ddr3 (2×2) for $10. I had a xeon x5460 and a 771 to 775 adapter that i bought on ebay a while ago for a project that never happened. So I figured what the hell.
I did the mod and used a huge heatsink from an old optiplex that fit into the Dell BTX contraption. I had to cut away at the rear i/o as it didn't fit exactly right and covered some of the usb ports.
So then I realised that the front i/o for the e521 doesn't fit into the the port on the 380 motherboard. Luckily I had an optiplex 755 laying around at work that hasn't worked in a long time. Perfect match.
So with parts from 4 different dells, an antec power supply, an hd 6770 and a moded x5460 i had a working Frankendell.
The bios recognized the xeon right away but I flashed a custom bios with microcodes anyway.
I hope that the kids can play overwatch on this when I'm using my main computer