Liquid damage to gaming machine (HELP)

Disassemble the computer.

Wipe everything clean with some paper towels, check the psu if still functional then after that..

Reassemble everything then hope it boots up.

Do it now.

No, don't leave it plugged in.

dissasemble, clean off all sugar, leave pieces in front of a fan for days, check for any more liquids

If you're getting absolutely zero response at all, then it's most likely the PSU that took the brunt of the short.

Then again, your motherboard could also be toast, assuming liquid made it on there as well. Unfortunately, that's just how it goes sometimes, liquid and electronics do not mix, especially sugary sticky drinks that instantly cause shorts everywhere and basically are a nightmare in their own right.

Nick, there is much work to do before ordering parts.
Disassemble the computer completely.
Find out where the liquid soda went. Iron124 has given good advice for what was probably/possibly damaged. If the computer was still running when you pulled the plug, there might be some hope.
If the power supply did NOT get wet, then you can do a basic test of it once out of the case and disconnected from the mobo and everything else. Here's the Corsair link for that test; important part is that you want to connect a fan to the PSU before shorting out the pins on the main power cable and do all of that before you plug it in and turn it on.
http://www.corsair.com/en-us/blog/2011/may/testing-your-corsair-power-supply
There are other versions of this test you can find on YouTube.
If the fan spins up, you have basic power. If not, you probably need a power supply.
DORKY1 had the simple version of the next steps.
dry off and then clean off, with a damp rag at first attempt, any of the spill: Check and clean everything. Be sure to check the battery and battery mount area for the CMOS battery (round silver battery). Remove the battery from the mobo and set it aside; you can use it again if you want, but since this is a major clean up might as well get a new one for when you reassemble the PC.

Now I don't know if the following will work on a desk top, but it worked on a laptop soaked in Coca-Cola:
Again, do at your own risk.
Wash everything that got soda on it, except the Hard Drive and CPU, in straight DISTILLED WATER; MUST be distilled water as that is as pure as water gets - it is simply condensed steam and water vapor. All other water will have minerals in it.
NO soap, just the water. Rinse in clean distilled water.
Now the important part: buy enough 97%-99% isopropyl alcohol (the main alcohol in rubbing alcohol, I buy my 99% at Safeway) and THOROUGHLY rinse the wet parts with this alcohol; It will absorb water and then it rather quickly evaporates.
Next: Using a compressor at 40-50PSI or canned air, blow dry everything; get all the wetness you can off the parts.
NOW; let them dry in a warm place for 4-6 days; having a fan blowing on them will help.
BEfore reassembly, blow them off again; see any moisture now, then back to the drying process for another couple days.

CPU: If it did not get any soda under the heat sink and into the processor, that's great. If it did, wipe off the soda, then rinse with distilled water (don't soak it) and then alcohol, blow it off, let it dry.

After everything is dried out reassemble the PC and see if it works. The lap top we saved belonged to my friends son, that was about 7 years ago, his child is using it today. I hope this helps, and I hope this saves your PC>
Best of luck.

I'm sorry to hear that. Keep us posted and best of luck.

Actually not a bad offer for a mobo destroyed by an accident. See if they will cover shipping, at least to you. That $50 is probably fairly close to what a retailer would have to pay for the board that they sell for $120-$130. Only other choice would be a completely new mobo and that would probably be a lot more $$ then $50.

Evening Nickw. Sorry for no replies, but have been very busy with work and other problems. Try "bread boarding" the PC.
Take everything out of the case; put the mobo on a cardboard box or other surface that is ABSOLUTELY non-conductive. This will eliminate the possibility of a short between the mobo and the case and any fans that might be messed up.
Connect the power, one stick of Ram, the CPU and cooler, and connect the monitor to the onboard/CPU graphics - then see if it will boot. If it works it should boot to the BIOS and tell you there is no OS.
If it doesn't boot: First try a different stick of RAM. If it still doesn't boot, it is probably the CPU that is toast.
If it does boot, then shut down and add the video card. If it doesn't even get to the BIOS there is a good probablilty the video card is shot. To test the video card withOUT your PC, try it in a friends PC: This is actually a better test as your friends PC will have an OS running it and not only should their PC boot up but the card hopefully will work properly. (Sorry to mention this, but it could be ruined from the soda and electricity but you won't know until you try it.)

IF you can get your PC running, especially on the CPU graphics on the "breadboard", then you can try adding one piece at a time to see if they all work. If you add something (say, andother stick of ram or you hook up the HDD) and it doesn't run, then shut down and remove that item and try to fire it up as it was the last time it ran.

One more thing: I realize you replaced the mobo with an identical mobo, but there is the slight possibility that you will have to reinstall Windows; But let's get the thing running first.
I will try to get back on the forums more often and will try to get back to you a bit sooner then this time.