Lenovo ThinkPad Edge E430 Core i3-2350M 2.3 GHz 6GB RAM 120GB HDD 14" Windows 10.

This laptop actually boots and works fine, most of the time.  However, from time to time, it starts to run really sluggishly, and I have not been able to figure out why.  I have run tests on the RAM, the HDD (which was recently wiped and replaced), the CPU, the temperature control, etc.  All tests are always passed 100%.  I have not been able to narrow it down.  My best guess is that maybe the integrated graphics chip is going bad and starts to cause intermittent I/O lag. I'm only thinking that because it's the only component I have not tested directly or replaced so far.  But since this problem seems to be inevitable after a certain amount of running time and only goes away randomly without any apparent fix, I'm listing it as "for parts or repair".

It has a fully-updated and activated copy of Windows 10 freshly installed, no passwords have been set at all.  The battery DOES hold a charge.  And yes, it DOES come with an AC Adapter / Charger.  The DVD burner works fine.  The only flaw (besides the mystery performance issue that crops up from time to time) is that the "1" key is missing from the keyboard.  

It should be good for spare parts if you need a screen or some other component.  It would also probably make a decent Linux server if you weren't interested in graphics and just needed a spare server to run all day.  This machine has a lot of potential for someone willing to tinker around with it.