Failure to POST after Plugging USB Drive into PCIe 6pin using a Sata power converter

[Wilybriggs]

Exactly as the title says. My computer won't POST, the lights turn on and fans spin for a moment, then it dies. I had gotten a USB hub/drive and plugged it into the power supply's 6pin PCIe using an adapter to SATA, which plugged into the USB drive. The USB drive also was plugged into the motherboard USB 3.0 header.

Did I fry my motherboard or short my PSU?

 

[mike1996]

dose it still work when you unplug the usb hub setup

 

[Wilybriggs]

dose it still work when you unplug the usb hub setup

Nope. Won't even POST. Fans and lights will go for about 3 seconds, then sputter on and off or shut off entirely.

Should 6pin PCIe just never be used for anything besides GPU? It had 12/5/3.3 rails, so I figured it'd be ok to convert to SATA power.

 

[mike1996]

it should have worked very strange.

theirs no post codes either?

my only suggestion is to start attempting to test parts individually in another system if possible

 

[Wilybriggs]

it should have worked very strange.

theirs no post codes either?

my only suggestion is to start attempting to test parts individually in another system if possible

No post codes at all. Could it have been static shock? Last straw for a failing PSU?

I will start testing PSU tomorrow when I can get the tools for it.