MikkoBrokenPSU

It seems to me that complaining on the forum wont help getting PSU back any faster!!!!! :( :( "Five exclamation marks, the sure sign of an insane mind." - Terry Pratchett

Try to get your PSU replaced by Amazon. I got my RMA PSU from recalled lot from Corsair Netherlands, so it all down to luck what you get. Corsair support is also really slow in communication, Amazon should be faster.

Still awaiting reply. Corsair support seems to be closed during holiday season.

Ok, it is probably coincidental. It now works also in position 6. I also tried to connect motherboard power cables to sockets 3-6 but no luck. The PSU starts, so its not the LT431 problem then. Thank you for your help.

I made some more testing and I actually made some progress. IF the GPU PCIe cable was in position 3 or 5 (as marked in the picture) the system booted to Windows. If position was 4 or 6, no luck. Also booting with cable in position 3 or 5 was not successful every time, it worked only every 2-3 time or something. I also tried booting with dual GPU with PCIe cables in both positions (3 and 5). Doesnt work.

The PSU was RMA from Corsair Netherlands, the serial number is within the date range and it doesn't work. Of course there could be other problems in the PSU.

I got the replacement last week after waiting weeks. All the HX1200 models were out-of-stock and when I finally got one, it was from defected series.:(: I already contacted support, no answer from there yet.

Hello! I have problems with my HX1200 booting into Windows. The motherboard Asrock Taichi x399 shows error code 62. I got this unit from warranty. The first one that got replaced was having loud bang noises when turned on, but atleast it booted and worked stable. The PSU serial number starts with: 203871, so maybe this is known problem: https://forum.corsair.com/forums/showthread.php?t=201807 But then again, why Corsair would send units with known defects to customers? Is there anything in PSU I could check? I am getting desperate, it is expensive to ship packages and I dont want to wait another 2 months. :(: Thanks, Mikko