overclocked to 5.0 GHz and achieved multiplier lock at 46% after setting the 9900k multiplier lock.
overclocked to 5.0 GHz and achieved multiplier lock at 46% after setting the 9900k multiplier lock.
Load line Calibration Level 7 is very high... Are you certain it should be this high?
I think your VRM might be overheating, which could be causing the CPU to run slower.
You mentioned you performed a stress test on the CPU. Correct?
The maximum frequency only activates when necessary.
For testing purposes:
Try directing a fan straight onto the VRM and increasing its speed to max... and see if it helps.
5GHz is considered a minority for an i9-9900k processor. According to Silicon Lottery, it accounts for around 30% of chips. I’m able to post, boot into Windows, and run Cinebench R20 with my chip at that frequency, but as the well-known C-3PO line says, it’s "not entirely stable." That’s why I opt for a slightly slower speed and lower voltage.
Apart from a brief AVX stress test for a very short duration, there’s nothing I can’t handle at 5, 5.1 or 5.2GHz. Games like CoD, BFV, AAPG, CSGO, Cinebench, 3D Mark & Video software, etc., are all fine. There’s nothing I do, use, or run that demands such prolonged CPU stress like the AVX test. It doesn’t reflect real-world usage for most people.
I can play all my games and run productivity software without issues. I get your point, but for most users, intense loads like AVX stress testing for hours aren’t typical.
My main concern is that the OP isn’t achieving 5GHz performance, which seems unusual. From what he’s said so far, it appears he wouldn’t even reach 5GHz on Cinebench like I and others can. Something seems off, and I think it might not be his CPU.
I’m a public school student, so I might be mistaken.