Stability problems with power limits in Intel 14900KF processor
Stability problems with power limits in Intel 14900KF processor
I know the Intel 14th have some stability issues, especially when unlocking the power limits, however, I come here to seek some guidance I couldn't find elsewhere. Short story, I upgraded from my old 12700KF to a used 14900KF on the same hardware, just because it was an easy upgrade on the platform more than anything, and a friend got my used 12700KF. The old 12700KF ran fine with just the limits removed and 2+ turbo added, but this 14900KF crash Cinebench R23.2 with an error when I try to do the same. CPU Load-line cal is set to level 4. I tried to go higher but no effect that I could tell. RAM has XMP enabled to Profile 1. I've tried to play around with the limits manually, and here is where I'm at: CPU Core/Cache Current Limit Max: As soon as I try to raise this, it will become unstable in Cinebench Long Duration Package Power Limit (PL1): Set to 4095 and stable Short Duration Package Power Limit (PL2): Set to 4095 and stable Package Power Time Window: Set to 448 but defaults at 256 as I remember I haven't touched any other setting in the BIOS (that I know of), just XMP and the power limits, everything else in on Auto/Default. Is there anything you would recommend me trying to change in the BIOS? Cinebench R32.2 score: 36831 Been stable in games with this "overclock" too for some time. CPU Temps. at max peak 95c, closer to 85-90 for most of the 10 min Cinebenck run. System: MB: ROG STRIX Z690-A GAMING WIFI D4 CPU: Intel 14900KF + Contact frame RAM: G.SKILL DDR4 4400MHz C19 2x16Gb GPU: RTX4090 (from Gigabyte I believe, I have a waterblock on it now) PSU: Asus ROG Thor 1200W Cooling: Custom EK watercooling on CPU and GPU with 2x360 rads
First if all, this is just a minor inconvineance, if nothing can be done that is no dealbreaker. I know the Intel 14th have some stability issues, especially when unlocking the power limits, however, I come here to seek some guidance I couldn't find elsewhere. Short story, I upgraded from my old 12700KF to a used 14900KF on the same hardware, just because it was an easy upgrade on the platform more than anything, and a friend got my used 12700KF. The old 12700KF ran fine with just the limits removed and 2+ turbo added, but this 14900KF crash Cinebench R23.2 with an error when I try to do the same. CPU Load-line cal is set to level 4. I tried to go higher but no effect that I could tell. RAM has XMP enabled to Profile 1. I've tried to play around with the limits manually, and here is where I'm at: CPU Core/Cache Current Limit Max: As soon as I try to raise this, it will become unstable in Cinebench Long Duration Package Power Limit (PL1): Set to 4095 and stable Short Duration Package Power Limit (PL2): Set to 4095 and stable Package Power Time Window: Set to 448 but defaults at 256 as I remember I haven't touched any other setting in the BIOS (that I know of), just XMP and the power limits, everything else in on Auto/Default. Is there anything you would recommend me trying to change in the BIOS? Cinebench R32.2 score: 36831 Been stable in games with this "overclock" too for some time. CPU Temps. at max peak 95c, closer to 85-90 for most of the 10 min Cinebenck run. System: MB: ROG STRIX Z690-A GAMING WIFI D4 CPU: Intel 14900KF + Contact frame RAM: G.SKILL DDR4 4400MHz C19 2x16Gb GPU: RTX4090 (from Gigabyte I believe, I have a waterblock on it now) PSU: Asus ROG Thor 1200W Cooling: Custom EK watercooling on CPU and GPU with 2x360 rads
Fireking124
09-20-2022, 04:25 PM #2I haven't checked your system directly, but I can confirm if you've installed a BIOS update addressing the 14th generation power problems.
kdawgman863
09-26-2022, 07:14 AM #3Check compatibility first, then proceed with an update and avoid minor adjustments. Make sure the device runs in stock mode before starting.
___iRekt___
09-28-2022, 03:20 AM #5Operates smoothly in stock configurations and even under the slight power constraints mentioned, but performance drops significantly when all restrictions are lifted. In fixed configurations I achieve approximately 35,000 in Cinebench, whereas removing limitations brings results near 37,000. Based on current observations, around 40,000 should be attainable with full limits and adequate cooling.
TheRealFIuff
09-29-2022, 11:38 AM #6Seems low indeed, you should rather be close to 40k, unless new/"safe" BIOS gimped the chip pretty hard My 7950X3D at stock scores 35k with 160W PPT and below 85C....
TheMiniKins
09-29-2022, 12:52 PM #7I considered purchasing a used 14900KF several times, and I’m sure you managed to get it at a good price.