Hi,
for the past couple days I've been wondering why don't we use higher voltage CPUs.
ofc I've been looking through google but all I found (unsurprisingly) was talking about 12V rails, extension cables, 12V CPU fans, pumps etc. (in a nutshell I got bored from just scrolling endlessly)
Most of my thinking was triggered by the video discussing the new 12V PSU standard and from that point I've been playing with thought of 12V CPUs. I know that in past (like pentiums from 1990-1995) used 5V with (most probably) lower current than they use today. But I don't know why and I really do wonder. I don't have any electrician as a friend who could explain me. Google (and other forum threads) I gave up on when I saw over 1000 irrelevant topics.
I just was unable to find the answer to WHY not.
My thoughts: Why 12V CPU?
First of all it could be more power efficient with power delivery (I don't remember the equation but i know the higher voltage gets the less power losses there are)
PSUs and MOBOs could be freed of all the VRMs necessary for conversion to lower voltages
Maybe even less heat from the components as there would be less current coming through?
Thanks to less current and heat you'd get longer life span out of the CPU?
Why not?
Does the CPU and other components need some specific amount of current to even run?
I cannot come up with any others.
All of my knowledge comes from elementary and high school education so I may very well be wrong or I'm missing an important piece of a puzzle to fill the gap of "why not?"
I'd appreciate clarification to this topic.