Newbie here...
Good news! I have a stable OC at 4.8Ghz testing fine in Prime95! I think my vCore is too high. as I'm still hitting temps in high 80s and some spikes to mid 90s. I've been able to reduce vCore in IXTU successfully by -0.04 and up to -0.045 and run stable Benchmark (~1590marks) and Stress Tests...and my temps come down to low to mid 80s and stay there.
Bad news! IXTU settings don't stick on reboot or on awake from sleep. When I try using EasyOC to reduce vCore, it always crashes (it only accepts 1.36v at 4.8Ghz, everything else is a crash over or under). When I go direct to BIOS, vCore is listed as "Auto" and nothing I can do will make this field active.
(XMP enabled, fans at full. Incidentally any time I OC to 5Ghz, I get a crash and frequently BSOD, whether I use IXTU, EasyOC, or BIOS. I can get a stable 4.9 but it runs too hot for my liking - again vCore)
Would appreciate any help or insight! Thank you!
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My rig:
Mobo: Gigabyte GA-270X-Gaming 7 LGA 1151
CPU: Intel i7-7700K Kaby Lake
RAM: Corsair Vengeance LPX 32GB DDR4 3200 C 16 (2x16) @ 3200
GPU: MSI GeForce GTX 1070 Gaming X 8GB
SSD: Samsung 960 PRO Series 512GB PCIe-NVME -M.2
PSU: PC Power and Cooling Firestorm Gaming Series 750W 80+ Gold
CPU Cooler: Corsair Hydro H100i v2 Extreme Performance
Corsair Fans ML120 x 2 (push-pull with stock fans)
Thermaltake 140mm Dust screens x 2
Monitors: LG 27UD58-B 27in 4K UHD IPS x 2
Case: Thermaltake Versa N24 Mid Tower
Corsair Fans AF120 x 2