B0o0

What a cool coincidence! The MoBo I'm using has a built in OC for the 8700k with the same GHz, and about the same Voltage. I should be content with that since it's so similar. What I still don't understand is how I got poorer GPU performance raising the power limit to 120%, and Core/Memory Clocks by 100/150 in Afterburner? Though, that's probably because I didn't raise the core voltage as you were saying.

I got a second opinion from random.org, and now I need 737Watts. I'm glad to be wrong about needing more wattage, even though the "How many watts do I need" post says 650+ for my setup. Then the real issue might be me misunderstanding crash results when overclocking.

When I was picking out parts for my gaming rig two years ago, I only went off the estimated wattage on the pcpartpicker site. The estimate was 438W total, so I thought a gold 550W was enough. I only found out recently when I started to play more demanding titles, watching overclocking cut my performance, and Afterburner saying it couldn't get the voltage it needs in a scan. I made another estimate here https://outervision.com/b/mYOtGq, and looked through the posts here to confirm I should have gotten at least 650 in wattage. So now I need to look into a proper PSU, and could use help picking one out. I'm budgeting $150, and preferably don't want to wait long as I've been seeing weeks of delay on Amazon and Newegg. Funnily the wattage site recommended this Gamemax PSU https://www.amazon.com/dp/B083RR7GBT/?SubscriptionId=AKIAIGIKPS7N7DIKIGVQ&tag=xov-20&linkCode=xm2, when the tier list put it in D tier. PCPartPicker Part List Type Item Price CPU Intel Core i7-8700K 3.7 GHz 6-Core Processor $349.99 @ Newegg CPU Cooler Deepcool CAPTAIN 240EX WHITE 153.04 CFM Liquid CPU Cooler Motherboard Gigabyte Z370N WIFI Mini ITX LGA1151 Motherboard Memory G.Skill Ripjaws V Series 16 GB (1 x 16 GB) DDR4-3200 Memory $64.99 @ Newegg Memory G.Skill Ripjaws V Series 16 GB (1 x 16 GB) DDR4-3200 Memory $64.99 @ Newegg Storage Samsung 970 Evo 500 GB M.2-2280 NVME Solid State Drive $99.99 @ B&H Storage Samsung 970 Evo Plus 1 TB M.2-2280 NVME Solid State Drive $229.99 @ Adorama Video Card Gigabyte GeForce GTX 1080 Ti 11 GB Gaming OC 11G Video Card $1259.00 @ Amazon Case NZXT H200 Mini ITX Tower Case Power Supply EVGA SuperNOVA G3 550 W 80+ Gold Certified Fully Modular ATX Power Supply $115.97 @ Newegg Monitor Acer XB271HU bmiprz 27.0" 2560x1440 165 Hz Monitor Purchased For $600.00 Mouse Logitech G703 (White) Wireless Optical Mouse Prices include shipping, taxes, rebates, and discounts Total $2784.92 Update: Since 550W works for this setup, I don't need a PSU, but a better understanding on overclocking, and crash results.