Spilled on PC, how to clean?

My friend spilled kool aid on my other friends pc, while it was turned on, there was no video output to see if windows shut down or anything as the pc was not on the output for the tv it was connected too, after it spilled i immediately turned off the pc disconnected everything and started drying and wiping down parts and removing excess kool aid, Everything is apart beside cpu from motherboard, dried everything the best I could, have no idea if any of the parts went out or still work, the top of the motherboard, cpu cooler, motherboard components, top or backplate of the gpu were worst hit, psu fan was facing down and should be fine, hdd and ssd were not hit, ram was not touched. The issue here is the fact thats its a brand new crosshair V, and 670 gtx.

I got the motherboard pretty good, it wasnt as bad as it sounds, the gpu wasnt too bad as only the backplate got hit, but i cant seem to figure out how to remove the backplate from the asus 670, to finish drying. All help is appreciated.