Asus Sabertooth R2.0 Not Booting Green Light

[Rolexlol]

Had this custom computer built by myself. Running on an asus saber tooth r2.0 motherboard. 8x2 RAM 1600 corsair vengeance. AX750 corsair power supply. 1 TB HHD. Tower is a white corsair case. Don't think that's matters but I'll list it anyways. 3 GB sapphire graphics card. CPU 8350 I believe. 4.0 GHz 8 core. Water cooled. The computer no longer turns on. Whatsoever. It was working fine for like 3 months or so with no problems. One day I manually turned it off. Tried turning it back on and it wouldn't turn on. I took it apart completely. Left it for 5 min and out everything back together. Still not working. The light on the motherboard is green. Usually when I plug something on the computer from the USB ports it gives it power even when the computer is off. However it no longer gives power to anything when plugged. Just a green light on the power. What could the problem be?

 

[alexoiu]

Try firstly testing the power supply: https://www.youtube.com/watch?v=5FWXgQSokF4 See if a connected fan does spin.

 

[Rolexlol]

I tried that. The AX750 is covered so I couldn't tell which one was the green cable. But according to most it's the 15 and 16th pin. I tried that and it didn't work. Tried different connections but that didn't work either. So it might be the power supply. If it is how did that happen? How did it just fry? Tomorrow I'll cut the cord so I can check which ones the green one and black one to figure out exactly which pin I should be connecting it to.

 

[smorizio]

on the 24 pin mb plug you unplug it there it the green wire on that conenctor and any black wire. before you do that try clearing the cmos if nothing changes try using the usb flashback and reflash the bios.

 

[alexoiu]

I tried that. The AX750 is covered so I couldn't tell which one was the green cable. But according to most it's the 15 and 16th pin. I tried that and it didn't work. Tried different connections but that didn't work either. So it might be the power supply. If it is how did that happen? How did it just fry? Tomorrow I'll cut the cord so I can check which ones the green one and black one to figure out exactly which pin I should be connecting it to.

Here: http://www.motherboards.org/images/articles/guides/24-pin.jpg the pwr on and gnd. If not working, I suggest RMA-ing the power supply, if under warranty