XTU/Per-Core Overclock Troubleshooting

[averagebilly]

Recently, I've tried using XTU to ocverclock my 9600k. There are some issues that I'm having with it, though. The main one being that when I try using per-core overclocking, the cores that I set to run faster rarely exceed the speed of the slowest core. I also have trouble believing the voltage readout of XTU, because I have it set at 1.330 V, but can run fine at 4.9 GHz all-core. HWMonitor says that some cores get as much as 1.455 V. Even when using XTU's built-in readouts, frequency doesn't exceed the slowest core, and processor cache never goes above 4.5 GHz, despite being set to 4.8 GHz.

 

I guess they what I'm asking is if anyone else has had issues with the program, or am I doing something wrong? Here is my parts list: 

PCPartPicker Part List

Type	Item	Price
CPU	Intel Core i5-9600K 3.7 GHz 6-Core Processor	$288.50 @ Vuugo
CPU Cooler	Cooler Master Hyper 612 Ver.2 44.2 CFM Rifle Bearing CPU Cooler
Motherboard	MSI MAG Z390 TOMAHAWK ATX LGA1151 Motherboard	$225.16 @ Amazon Canada
Memory	Team Vulcan 16 GB (2 x 8 GB) DDR4-3000 Memory	$249.99 @ Amazon Canada
Memory	Team Vulcan 16 GB (2 x 8 GB) DDR4-3000 Memory	$249.99 @ Amazon Canada
Storage	HP EX920 512 GB M.2-2280 NVME Solid State Drive	$109.50 @ Vuugo
Storage	Seagate FireCuda 2 TB 2.5" 5400RPM Hybrid Internal Hard Drive	$129.99 @ Newegg Canada
Video Card	MSI Radeon RX 570 8 GB ARMOR OC Video Card	$194.00 @ Canada Computers
Power Supply	EVGA SuperNOVA G3 650 W 80+ Gold Certified Fully Modular ATX Power Supply
Case Fan	Corsair LL120 RGB LED 43.25 CFM 120 mm Fan	$49.99 @ Corsair
Case Fan	Corsair LL120RGB LED (Three Fans With Lighting Node PRO) 43.25 CFM 120 mm Fans	$169.99 @ Best Buy Canada
Keyboard	Kingston HyperX Alloy FPS Wired Standard Keyboard
Mouse	Logitech G502 Proteus Spectrum Wired Optical Mouse	$72.04 @ Amazon Canada
Custom	EVGA DG-77 Matte Black Mid-Tower, 3 Sides of Tempered Glass, Vertical GPU Mount, RGB LED and Control Board, K-Boost, Gaming Case 170-B0-3540-KR
	Prices include shipping, taxes, rebates, and discounts
	Total (before mail-in rebates)	$1754.15
	Mail-in rebates	-$15.00
	Total	$1739.15
	Generated by PCPartPicker 2020-05-19 11:22 EDT-0400

 

[unclewebb]

2 hours ago, averagebilly said:

when I try using per-core overclocking

The 9600K does not support per-core overclocking. You can only change what multiplier the CPU uses based on how many cores are active. You cannot set individual cores to different multipliers.

 

https://en.wikichip.org/wiki/intel/core_i5/i5-9600k