Why is my Intel Core Ultra 285k CPU always at 100% load after moving to a new rig?

May 3, 2025 4 answers
Asked by TechieTornado84
Hey everyone! I just upgraded my rig and moved my existing Windows OS to the new setup. Everything seems fine in BIOS, but as soon as I boot into Windows, my CPU is stuck at 100% load. Even though the system runs smoothly, it's concerning because my CPU idle temperature is 55ยฐC, while in BIOS, it's only 33ยฐC. I've tried safe mode, updating drivers, running Windows updates, closing unnecessary processes, and various troubleshooting methods I found online, but nothing's working. I haven't changed anything in the BIOS that I'm aware of. Am I overlooking something important? Any advice would be greatly appreciated! By the way, my setup includes a Gigabyte Z890 Aorus Master motherboard, 128GB DDR5 RAM, and a 1200W Superflower PSU.

Answers

GamerGuru07
It sounds like you might have a virus or some issues with the SSD. Iโ€™d recommend trying to run Windows from a different SSD to see if that fixes the issue. And just a heads up, itโ€™s usually better to do a fresh Windows install rather than moving the SSD directly to a new rig.

TechieTornado84: Thanks! Iโ€™ve checked for viruses and malware already, so I donโ€™t think thatโ€™s the problem. Iโ€™ll try Windows on another SSD soon to see what happens. I suspect the migrated OS may have some conflicting drivers.

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BuildMaster88
Your CPU probably needs a fresh start. The Windows thread scheduler might not be set up for this CPU, which can cause all sorts of issues. Youโ€™ll also need to install a bunch of drivers for everything to function properly.

TechieTornado84: Got it! Iโ€™ll prioritize doing a fresh install. Thank you for the advice!

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OldHardwareWizard
It could definitely be some leftover drivers or software from your old hardware messing things up. A clean install is definitely the way to go.
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DriverDude21
It could be some driver conflict from when you moved your setup. A clean install of Windows will likely solve itโ€”just remember that this will wipe the drive it's on, so back up anything important first!

TechieTornado84: Thanks, everyone seems to agree that a fresh install is the next step!

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