Coffee/Tea damage

[Calidus]

So yeah, my old pc, the parts I upgraded from were still in the old case and stored under a desk that my mother works on (clothing alterations), I decided to transfer them to another case today to be used as a test bench of sorts.

 

I opened the case box to find my old xbox 360 on top with a massive coffeen or tea stain, I don't even know why my xbox is in this box on top of my case but looks like it took the majority of the spill :/, my pc has stains on the top fan grill, my cpu heatsink and fan and then on the fan of the PSU. (thankfully I didn't have a graphics card in the case) I've checked over the PSU, opened it (yup I know its generally not recommended) and it looks like it only hit the fan, so I cleaned that and dusted it out at the same time. I compared mine to pictures from a review (its a be quiet! 800W Straight Power 10) and looked good, I hooked it up to a PSU tester and seems to work fine, should I still be worried about the PSU though?

 

My Cooler Master Hyper 212x seems to be in a bad way though, managed to clean the fan fine but there's 4 or 5 rows of fins with coffee/tea all down them. I have no idea how to clean between the fins safely so it might be a right off. I'm not sure if I want to chance turning on the board with this heatsink, what would anyone recommend about the heatsink?

 

Thankfully everything else was fine thanks to the Xbox, otherwise would of been a big problem. (of course my xbox is another matter..) Also, no ones owning up to the blame, but whatever never storing near tables like that again.