The R5 2400G box has experienced some shutdowns and I have discovered that the reason for it was nothing to do with the PSU at all. I now consider the Corsair AX860i to be markedly better than older models.

My machine was shutting down hard, and my AX860i was showing a red LED. I had to cold power reset the machine. Pondering the issue I solved it and I am posting my results for world+dog to learn from.

I noticed my GTX 1060 also has a zero fan and it seems that as the motherboard became too warm, I believe the UEFI shut the machine down to save it from thermal damage.

I inquired on the EVGA forum and several members and an EVGA representative all mentioned the zero fan is standard.


I use a MSI B350M Bazooka motherboard and I use the MSI Afterburner to make video captures. MSI has several thermal sensors on all of their the motherboards so that user can monitor the situation.

I enabled the custom fan profile with MSI Afterburner and now the video card fan is constantly active at low speed. With that change, my machine no longer shuts down. This makes the case for more fans and more attention to heat buildup with lower power machines. The EVGA GTX 1060 now idles at a much nicer 34°C.

Now I am of the opinion that the zero fan idea is misguided for video cards. The heat can be conducted into the slot and into the motherboard which is probably the reason for the faults. There is one chassis fan in the front that pulls air into the machine. The rear and top grills support more fans if needed. The front fan runs at 850 rpm which is about 35% of maximum.


My opinion of my Corsair AX860i has been reinforced that it is worth the cost to protect your expensive hardware. Clearly the PSU reacts to the motherboard which suggests that the PSU USB cable is not really needed. The motherboard and UEFI are able to handle the situation without gimmicks. The AX860i is clearly capable of protecting a person’s expensive personal computer hardware. That alone justifies the cost.

Using the Corsair Link software a custom fan profile for the PSU has allowed it to run cooler than it normally does. The goal was primarily to have air flow generally positive so that no device was not improperly cooled. The zero fan design is unwise as it allows too much thermal damage to occur.


The comments on the Corsair forum have been read over 100 times so fare suggesting a high degree of interest. The focus on front intake fans and read/top exhaust fans is basic but very functional but the zero fan can cause localized heat build up.