CPU heat in bios

Iceman · 1 May 2008 at 22:08

I remember reading ages ago that your cpu would read higher when in the bios due to it being put under more load than when sitting at idle in windows..

IS this true??

Im just trying to work out why my cpu temp is so cold lol
Cpu showing @23c in bios and mobo temp @32c

Using Asus M2A-VM HDMI Micro ATX (Socket AM2)

iKettles · 1 May 2008 at 22:31

Doesn't BIOS read the socket temp and not the core temp? That should explain the different temperatures.

Jokester · 1 May 2008 at 22:35

Yes, idle temps in the BIOS will be higher than in Windows. It's to do with the way the processor runs when idle. In the BIOS if I remember correctly it runs NOP (No Operation) instructions, whilst in windows it runs a power saving mode instead (can't remember what it's called) which generates less heat.

thegoonden · 1 May 2008 at 23:12

Yeah, in Windows (or Linux), instead of running a NOP, it's actually told to skip a cycle or do absolutely nothing (not big on CPU fineries, but that's the gist).

In Windows it lists as "system idle process", In linux it (used to) show up on the CPU meter, oh the fun that caused..."I just installed this POS Linux thing and my CPU is at 100% all the time" etc.

Your machine is simply very very mellow

Iceman · 2 May 2008 at 19:25

So why is my Cpu so low then?
It does'nt really go any lower higher in windows and ran prime 95 last night and all temps were staying the same maybe moving up or down 3 degree's at most