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Weird power cycling on boot.

Tregeta
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Just built my very own PC for the first time and it's AMAZING! https://pcpartpicker.com/user/Tregeta/saved/2wdxGX 

 

But I'm having sort of a problem. It's nothing major at least yet. But SOMETIMES when I press the power button to turn on the PC, it cycles on and off twice during the POST, before powering on a third time and booting normally. There is an audible click each time it does this. I checked RAM seating and GPU seating and everything appears nice and snug. It doesn't seem like it would be, but is this type of power cycling normal at all? No other problems seen, no BSOD's or crashes, just OCCASIONAL power cycling on boot and always twice before booting normal. Also I noticed if I completely unpower the PC by throwing the PSU switch in the back after shut down, and then restore power, the cycling issue is guaranteed upon boot. So I'm thinking PSU but what about it would cause this? Also Motherboard BIOS and other hardware drivers are up to date. 

 

CPU: Intel - Core i7-8700K 3.7 GHz 6-Core Processor  
CPU Cooler: Corsair - H115i PRO 55.4 CFM Liquid CPU Cooler  
Thermal Compound: ARCTIC - MX4 4 g Thermal Paste  
Motherboard: Asus - ROG MAXIMUS XI HERO (WI-FI) ATX LGA1151 Motherboard  
Memory: Corsair - Vengeance RGB 16 GB (2 x 8 GB) DDR4-3200 Memory  
Storage: Samsung - 970 Evo 500 GB M.2-2280 Solid State Drive 
Storage: Samsung - 860 Evo 1 TB 2.5" Solid State Drive  
Video Card: EVGA - GeForce GTX 1070 Ti 8 GB FTW ULTRA SILENT GAMING Video Card 
Case: NZXT - H500 (Black/Blue) ATX Mid Tower Case  
Power Supply: Corsair - RMx 850 W 80+ Gold Certified Fully-Modular ATX Power Supply 
Operating System: Microsoft - Windows 10 Pro 64-bit  

 

Edit: I think this may be a double POST issue, only thing I changed from stock on my motherboard, was set my DRAM to be 3200 Mhz which is what the RAM is designed for. I guess I could back this off to 3100 or 3000? ALL other overclock related settings have been left stock from ASUS. 

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