Gigabyte B760M DS3H AX Bios setting?

[Vogon]

Hi I recently built a system with this motherboard, when stress testing with intelburntest I noticed the power draw from the cpu is in excess of the 65w rated for the i5 12400f.
I assumed ths may be due to a bios boost feature. The only thing I can see that looks a likely suspect is a Gigabyte performance mode.
But all but the one option it is on is greyed out, so IDK how I can disable this feature and have it run the intel stock settings. If you have any ideas how this can be achieved please let me know

 

[Tetras]

The TDP is pretty much meaningless for modern CPUs. If you want to power limit it, you'd have to turn off the turbo or change PL1/PL2, but you'll get less performance than advertised in heavily multithreaded stuff. I'd expect gaming to be unaffected at 65 watt.

This article has an explanation of it:

Why Intel Processors Draw More Power Than Expected: TDP and Turbo Explained

www.anandtech.com

 

[Vogon]

But it does appear there is a bios boost of some sort in place, TBH all I want to be able to do is set it to default !

 

[Tetras]

But it does appear there is a bios boost of some sort in place, TBH all I want to be able to do is set it to default !

It likely is @ default already, unless it is exceeding Intel's PL1/PL2 limits for the 12400 (65/117)?

There are boards which don't apply any limits out of the box, but I wouldn't expect this to be one of them.

If you take a screenshot of the BIOS it would help, but from what I can see, stock settings are:

Enhanced Multi-Core Performance - OFF
Performance CPU Clock Ratio - AUTO
Intel(R) Turbo Boost Technology - ON
Turbo Ratio - AUTO
Turbo Power Limits - I can't see what options exist for this setting, but I'd assume it is: OFF.

If you want to limit the board to 65 watts you could either:

Enhanced Multi-Core Performance - OFF
Performance CPU Clock Ratio - AUTO
Intel(R) Turbo Boost Technology - OFF
Turbo Ratio - AUTO
Turbo Power Limits - ??

OR

Enhanced Multi-Core Performance - OFF
Performance CPU Clock Ratio - AUTO
Intel(R) Turbo Boost Technology - ON
Turbo Ratio - AUTO
Turbo Power Limits - (if option exists) PL1: 65, PL2: 65, TAU: 0.

That's my best guess from the manual. The second option (leave turbo on and use power limits) should give you the best performance.

 

[Vogon]

Hi Tetras, thanks for taking the time to give a detailed reply.

Pics of the bios:

The Turbo power limits I changed to Intel POR and seems like it now pulls back the clocks when it exceeds 65w, as expected.
But I can't change the GB PerfDrive in either easy or advanced mode, Optimization is the only option, I can not see a disable !