Recent content by TwistedAndy

No, that post is correct. If a motherboard or a laptop vendor decides to enable the new Intel Undervolt Protection feature and does not add this setting to BIOS, the undervolting will be completely blocked. Also, this new feature may break the undervolting on some motherboards event if a vendor...

In terms of undervolting, things are more complicated: Intel Blocks Undervolting: The Whole Story. It is possible to undervolt 12th and 13th gen SKUs through ThrottleStop if the following conditions are met: - Intel Undervolting Protection is disabled in BIOS - The motherboard vendor...

Yes, correct. The new feature is called "Intel Undervolting Protection". It was silently released some time ago. Initially, it was intended to block undervolting using apps like ThrottleStop, but in practice, it can also break the BIOS undervolting. The options may still be in BIOS, but once you...

It appears, that the problem with the new Intel Undervolting Protect feature is much deeper: Inter Undervolting Protection: The Whole Story

Which is even more interesting, many modern motherboards have a setting called Undervolt Protection, but it controls a completely different thing: Intel CEP (Current Excursion Protection). Even Dell Precision 7670 and 7770 have it. From my perspective, CEP is the real protection and not the...

A few months ago Intel introduced a new feature called Dynamic OC Undervolt Protection, which may completely block the undervolting on Intel CPUs. It works in conjunction with recent microcode updates and can be enabled by a motherboard vendor. In other words, ASRock, Gigabyte, Dell, HP, or...

Unfortunately, it looks like Intel has released the new microcode update, which blocks undervolting on 12th and 13th gen CPUs. Here's an article: Intel blocks undervolting on Alder and Raptor Lake

VBS is the Virtualization Based Security. It's not the virtualization support. If you disable VBS, other apps and features still can use virtualization.

Here's a quick update. Another person has updated the BIOS to 1.13.1 and had the same issues with undervolting. It looks like an issue with the new BIOS firmware. There are no issues with virtualization by itself, it does not directly affect the undervolting tweaks. Usually, those problems are...

Thank you! I have found a temporary workaround by rolling back BIOS to 1.11.0. Now it works again :) I'm not completely sure if it is an issue with the BIOS by itself or some problems between my Windows setup and the BIOS. Anyway, I've created a thread on the Dell Support forum. Hope, they will...

I have this problem again. TS was working properly for a long time, but a week or two ago the voltage offsets are not applied for some reason: Memory integrity is disabled, Hyper-V is also disabled. I've tried to disable the virtualization support in BIOS, but it also won't help. Is there a...

I'm doing some research around the mV Boost option. It looks to be working on 12900HK. Unfortunately, stability on the low power limits is harder to test.

Yesterday Dell replaced the motherboard in my device. After the replacement, I launched Windows and got the same 20W PL1. Also, Windows automatically initiated the BIOS upgrade procedure through Windows update to 1.10.0. All the firmware parts (including EC, ME, Thunderbolt controllers, etc.)...

Yes, it looks like you're right. During the device turn-on and initialization, BIOS sets the wrong power limits to MMIO. When MMIO is locked, and I trigger the system restart, the BIOS performs a hybrid restart procedure when some memory contents (including information about MMIO lock) are...

I have found a workaround for the issue with the system restart. Instead of locking the MMIO, I have enabled the Sync MMIO option: I'm not entirely sure how the MMIO sync is implemented, but it looks to be working.