Not very retro, but did my best dumpster find ever a while ago 😁 A Thinkcentre M720q tiny form factor system, with a Core i5-9500T CPU, 8GB RAM, 500GB NVMe HDD, etc. Lenovo's support page states that it even has a few months of warranty left.
Found it in pieces, but nothing was missing, and it could be reassembled. Only a few scratches and a small bump on the lid, probably from when the original owner threw it, but otherwise almost as new. Was sure it was broken, but thought I could give repairing it a shot, or at least scavenge the working parts if repairing it failed, so brought it home. Took it apart again, let it dry for a few days, and reassembled it. It booted at first try, and has worked perfectly since. No idea why anyone would throw this computer away, but hell, I'm not complaining 😁
I've put it to good retro use though. It replaced an RPi 4 as an emulation console with Lakka. Running PS2 and Gamecube games with upscaled resolution at full speed without the computer even coming close to breaking a sweat. Can't hear the fan. Also love that it came with a VGA interface card, so I can run display through my OSSC for scanlines if I like. Played through TLoZ - OoT the last week 😀
Only pics I took of it before tucking it in the media bench where it's hard to access was when doing some EFI hacking, enabling hidden options etc:
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