vendredi 28 novembre 2014

Brand New AX860i - Defective or Incompatible ???

I'm working on a brand new build, all new components:



Motherboard = EVGA Z97 Stinger 3D (m-ITX) w/ Z97 Chipset (latest BIOS revision)

CPU = i7-4790K "Devil's Canyon"

RAM = 8GB (2x4 GB) Corsair Dominator Platinum @ 2133 MHz, CAS=8

SSD = Samsung 850 PRO - 128 GB

PSU = Corsair AX860i



This is an early "test" build so, I'm going to add a video card, water cooling, etc, later (I'm currently using onboard video).



Every time I try to power the system on, the PSU powers up the motherboard, the CPU fan spins up to full speed, then as the CPU fan begins to slow back down to idle, the PSU abruptly shuts the power completely off. After a few seconds, the PSU will then come back on and go through the same cycle of powering up for a few seconds, then shutting itself off.



I've tried the "self test" on the PSU and although the fan doesn't spin at all, the light is "green" indicating that it passed the "self test".



I can either let the system boot into the OS (Linux Mint 17) or go straight into the UEFI BIOS, the result is the same: the PSU will shut off after a few seconds then try to restart, so it's not an OS issue. I can actually remove the SSD altogether and just go straight to BIOS and get the same result.



I have an old Corsair CX500 PSU that I plugged into this motherboard with this exact setup and everything runs like a champ: normal boot straight into the OS, just like you'd expect.



I've read several threads here with people having issues with their Corsair PSU's having similar problems and the common theme seems to be the "80 Platinum" rated PSU's and H97 or Z97 chipset motherboards. Also, on the EVGA forums, there are similar reports of compatibility issues with Seasonic based PSU's, including Corsair and CoolerMaster PSU's based upon Seasonic's design.



My questions would be: are there workarounds or fixes for this issue; is this a documented "normal" feature / compatibility issue of these PSU's; or is my PSU defective?



Also, are there any "firmware" updates for the AX860i (if there even is such a thing) or settings within Corsair Link that could help?



I really like the features of the AX860i. However, it's pretty much useless in its current form. Any insights will be greatly appreciated. Thanks.




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