Reccomendations for tuning 4790k OC on H100i

[CommandMan7]

So I helped my friend build this computer:

 

PCPartPicker part list: http://pcpartpicker.com/list/Brq64C
Price breakdown by merchant: http://pcpartpicker.com/list/Brq64C/by_merchant/

CPU: Intel Core i7-4790K 4.0GHz Quad-Core Processor  ($339.99 @ Newegg) 
CPU Cooler: Corsair H100i v2 70.7 CFM Liquid CPU Cooler  ($102.99 @ Best Buy) 
Motherboard: ASRock Z97 EXTREME6 ATX LGA1150 Motherboard  ($102.98 @ Newegg) 
Memory: Crucial Ballistix Sport 16GB (2 x 8GB) DDR3-1600 Memory  ($84.99 @ Newegg) 
Storage: Seagate Constellation ES 1TB 3.5" 7200RPM Internal Hard Drive  ($83.99 @ Amazon) 
Video Card: Gigabyte GeForce GTX 1060 3GB 3GB Windforce OC Video Card  ($189.99 @ Newegg) 
Case: Azza CSAZ-5000W ATX Full Tower Case  ($99.98 @ Newegg) 
Power Supply: Corsair Builder 500W 80+ Bronze Certified ATX Power Supply  ($49.99 @ Newegg) 
Operating System: Microsoft Windows 10 Home OEM 64-bit  ($84.89 @ OutletPC) 
Total: $1131.79
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-11-05 11:37 EDT-0400

 

And it all works fine. I finished it at 2 am and I needed to get back home so I hastily applied an overclock of 4.7 Ghz @ 1.3V Vcore and verified for 20 minutes before going home. It has been 100% stable at 72 C although I believe the H100i fans are only going to 50% RPM and I can increase the speed as noise isn't a concern. I've heard various things about max voltage on 4790k, especially for 24/7 usage. Is this voltage safe for 24/7 usage, and if it is, do you think I can either increase clocks at 1.3V or keep the 4.7 Ghz stable at a lower Vcore? I did not modify any settings apart from Vcore and CPU Ratio.

 

I would just try this out myself, but I don't have access to the computer and it's an hour drive away from me, and I'd like to get a better judgement before I make the trip.

[Matias_Chambers]

You can use up to 1.4V as long as temps don't get over 85C. 

[Matias_Chambers]

@Lays can help you more than me.