Question Do some motherboards overvolt the CPUs?

[Coyle]

While reading reviews for the i5-14500 I came across many who said it ran hot with stock cooler, and one review which seemed to maybe shed some light as to why so wanted to ask it this is true; below is from the review in question stating motherboards are overvolting the CPU:

"This is a great product at a great price that runs cool with the included cooler. However, every motherboard manufacturer is now OVER VOLTING the CPUs causing them to run hotter and be less efficient so they can pass benchmarks with slightly higher scores at the cost of cooking your CPU. Look up the PL1 (long term power) and PL2 (short term power) ratings for your CPU and compare it to the massive over-volting your motherboard is doing to it without your knowledge or consent.

In this case, the PL1 on a 14500 is 65w and the PL2 is 154w. My AsRock board was over-volting this to 219w+!!! No wonder it was cooking the CPU. This is not even an over-clockable CPU!

There is a setting in the AsRock BIOS EZ screen to ENABLE INTEL POWER LIMITS, but it does not work! You need to go to advanced settings and find the long and short power limits and put them back MANUALLY to Intel's specifications.

Now your chip will not over-heat, will cost less money to run, will last longer, be more reliable and you do NOT need to waste your money on more expensive coolers or thermal paste, nor waste your time installing and wiring all that up!!!!!!!"

 

[Tech Junky]

I don't know but, Intel tends to sue more power to hit the same speeds as AMD since they are using the same nodes they were 5 years ago.

Good thermals though are easy if you use a PA120 that has 6 pipes and a graphite thermal pad. When I was using a 12700k it kept it in the 30s when idle and under 50 when maxed out. AMD on the other hand is designed to run hot and then back off a bit when under load. Idle on my 7900x is about 40 and max goes up to 90. But it also has 12P cores where the Intel has 8P.

As for energy use the AMD is more efficient as most of the time it's just under 1% CPU utilization.

It all comes down to the overall build and personal use cases though.

 

[TheELF]

In this case, the PL1 on a 14500 is 65w and the PL2 is 154w. My AsRock board was over-volting this to 219w+!!! No wonder it was cooking the CPU. This is not even an over-clockable CPU!

Almost every mobo does over-volt the CPU, that's why we had exploding x3d CPUs and AMD hustling to fix the issue with agesa updates, but increasing PL (power limit) is an additional thing, mobos over-volt even when not going above the power limits.
Higher voltages make sure that the CPU doesn't crash when running heavier software and that ensures fewer RMAs for the makers.

 

[tcsenter]

Voltage pre-positioning for droop?