What to do with an old PC that has suddenly stopped working?

[ssavo]

My PC gave out on me this week and I'm trying to figure out what to do with it. I assembled it with parts totaling around $700 in 2012, and replaced the GPU and PSU in 2015 for around $250.

It worked faithfully until last week, when it got into a constant restart loop. Here's a twenty second video I just took showing the problem:
https://www.youtube.com/watch?v=H5l0vilmedQ&feature=youtu.be

I've already bought a replacement computer, so I'm not so much looking for troubleshooting advice as for what I should do with it now to hopefully recoup some of the cost. I'd like to try to sell the parts on ebay, but the issue is I don't know which part is broken, or if there's even any demand at all for old parts. I could bring it to a computer repair store for a diagnostic, then sell the other parts on ebay, maybe?

Trashing it seems the most likely option, but I'd be very grateful for advice about what I should do with an otherwise fine, if outdated, PC with what I assume to be a blown out component. Thanks!

My configuration is:
Motherboard: AS Rock Z77 Extreme4
Processor: Intel i5 or i7; I can't recall which
PSU: Raidmax Vampire RX-700GH
GPU: GeForce GTX 660
RAM: Kingston, two sticks of 8GB each (KVR 1333d3n9k2/8G)

 

[dark_globe]

it is definitely worth while to diagnose what went wrong .
my first choice would be to plugg your old system to the power supply from your new system .
if the problem remains you know psu is good and you can continue with memory sticks etc .

processors hardly ever go wrong : so either it would be a bad motherboard or video card at that point .
switching graphics cards between systems is also pretty easy ,
or just try to plugg your monitor to your motherboard to use processors on board video card .

 

[SkyNetRising]

Code 55 is issue with ram. Also could be bent CPU pins.

Fix it or sell for parts.

 

[ssavo]

According to the first two replies, it could be: PSU; motherboard; GPU; RAM; or processor. OK, so we've ruled out the PC case, possibly. 😀

I hadn't opened the case in a few months (since the last dusting), and hadn't moved or otherwise messed with it since 2015, so I don't know how the processor pins could have gotten bent.

When the PC started having the restarting issue, I unplugged/re-plugged all cables in the case and reseated the RAM -- to no avail.

Testing the parts by swapping them with those of my new computer seems questionable to me, as I bought a Dell (value! j/k) and I don't want to fry new components somehow (illegitimate concern?) or invalidate the warranty.

 

[antishill]

Put the parts up on craigslist. See who wants to buy them.

 

[dark_globe]

Put the parts up on craigslist. See who wants to buy them.

that would be irresponsible :
selling parts if you are not sure if they are working or not and which one is bad .
this could only bring more troubles to you or to someone who buys them .