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can you change tdp on intel 10th gen locked cpu with z490 motherboards?

can you change tdp on intel 10th gen locked cpu with z490 motherboards?


as in unlocking 10400/10700/10900 65watt to sustain all core turbo clocks indefinably ?

also can i undervolte the cpu from bios to reduce heat (if needed since i will be running it in sff case)

if yes does it apply to all motherboards brand or only some of them ?  


just want to be sure before buying as i didn't find clear answer online 


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Well the tdp doens't affect anything, you want to change the turbo limits. A lot of boards let you do that. But it normally doen't make a big differnce as there not limited by the turbo limits much anyways. GN did a video on this, and found that there was basically no noticeable difference in performance.


You can normallyundervolt, but that doesn't make a big difference normally either.

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I think you can, but the key here is to check the all core turbo limits. I dont think they reduced that too much over the unlocked ones but better check.

CPU: i7-2600K 4751MHz 1.44V (software) --> 1.47V at the back of the socket Motherboard: Asrock Z77 Extreme4 (BCLK: 103.3MHz) CPU Cooler: Noctua NH-D15 RAM: Adata XPG 2x8GB DDR3 (XMP: 2133MHz 10-11-11-30 CR2, custom: 2203MHz 10-11-10-26 CR1 tRFC:230 tREFI:14000) GPU: Asus GTX 1070 Dual (Super Jetstream vbios, +70(2025-2088MHz)/+400(8.8Gbps)) SSD: Samsung 840 Pro 256GB (main boot drive), Transcend SSD370 128GB PSU: Seasonic X-660 80+ Gold Case: Antec P110 Silent, 5 intakes 1 exhaust Monitor: AOC G2460PF 1080p 144Hz (150Hz max w/ DP, 121Hz max w/ HDMI) TN panel Keyboard: Logitech G610 Orion (Cherry MX Blue) with SteelSeries Apex M260 keycaps Mouse: BenQ Zowie FK1


Model: HP Omen 17 17-an110ca CPU: i7-8750H (0.125V core & cache, 50mV SA undervolt) GPU: GTX 1060 6GB Mobile (+80/+450, 1650MHz~1750MHz 0.78V~0.85V) RAM: 8+8GB DDR4-2400 18-17-17-39 2T Storage: 1TB HP EX920 PCIe x4 M.2 SSD + 1TB Seagate 7200RPM 2.5" HDD (ST1000LM049-2GH172), 128GB Toshiba PCIe x2 M.2 SSD (KBG30ZMV128G) gone cooking externally Monitor: 1080p 126Hz IPS G-sync


Desktop benching:

Cinebench R15 Single thread:168 Multi-thread: 833 

SuperPi (v1.5 from Techpowerup, PI value output) 16K: 0.100s 1M: 8.255s 32M: 7m 45.93s

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2 hours ago, oldnick said:

sustain all core turbo clocks indefinably

The turbo power limits might be locked on a Dell, HP or other OEM board but are generally left unlocked on any decent board from Asus, Gigabyte, MSI, etc.


The non-K locked CPUs do not support all core turbo.


The 10 core 10900 is a power hungry chip. Being able to increase the turbo power limits beyond 65W can make a significant performance difference when fully loaded.



...which resulted in huge performance gains, especially in demanding applications.


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