Flip PSU switch on and lights go out

[BarkingGhostar]

Put together a new PC for the wife. Intel i5-4570 on Gigabyte GA-Z87X-UD4H with 16GB Corsair XMS3 RAM. Using Samsung EVO 120GB SSD and Corsair CX-430M PSU with Corsair Carbide 300R case.

Assembled everything, connected the USB transceivers for external TP-Link wireless NIC and Logitech KBM. I plugged in the EIC cable to the PSU, flipped its switch to the on position and the room's electrical circuit tripped.

Hmm, how exactly does a PSU rated at 430W achieve the ability to trip a 15A room circuit when nothing but the ceiling light is the only other thing on it?

No idea where to begin. In +15 years of building PCs I've not encountered this problem before. And just last October I built a nearly identical system with an i7-4770K, 400R case and CX-600 PSU and had no problems.

 

[rgallant]

did she ever stop laughing ?
I'd replace psu for starters

 

[bryanl]

Hmm, how exactly does a PSU rated at 430W achieve the ability to trip a 15A room circuit when nothing but the ceiling light is the only other thing on it?

Are you absolutely certain nothing else is on the circuit? I don't understand how it could trip otherwise since the fuse in the PSU should be rated less than 8A.

Assembled everything, connected the USB transceivers for external TP-Link wireless NIC and Logitech KBM. I plugged in the EIC cable to the PSU, flipped its switch to the on position

What happened when you tested the PSU before assembly? And you did.

 

[BarkingGhostar]

bryanl, yes, I am sure. I unplugged the existing PC, which wasn't on. Its monitor was off and nothing else in the room, save for the Samsung printer in sleep mode (4W). No table or floor lamps, scanners or other appliances. It is a conventional room, nothing like other places.

I removed the PC from the room this morning and well I cannot tell from just the PSU if it is dead or not. These Corsair PSU products don't spin their fans up unless it is under load. I'll take the PSU back to Microcenter today (bought it on Friday), but I hope nothing got damaged in the incident.

I guess I could strip out an old Antec PSU and see if the motherboard power indicator lights up, but other than that not sure what to do other than play swap the components.

 

[BarkingGhostar]

Minor update:

Replaced the unit with another. It worked. Now wrestling other issues.

Is it me in that my Corsair PSU buying experience their reliability is 50%?