Let's clarify it once for all

B

Binar

[H]ard|Gawd
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When you go in BIOS is the CPU under heavy load or no load?.Since 1996 when I built my first system I tried to find a definitive answer. Even now if you Google it you get different answers all very well documented .....no load, medium load or heavy load are the most common answers(duh!!)...Some users are saying that it differs from board to board and while some boards can run a cpu @100% load some runs it bellow 50% while in Bios.

So which one it is?

The reason I'm asking is that I sometimes help "friends" troubleshoot their PC and they are reluctant to install a 3rd party software to monitor the CPU temp. The only way to see the temp is by directing them to BIOS readings.
 
Its under no load but basic power saving isnt active.
As KillerK said, those 2 tools are very good for measuring the temp.
Although no temp except TjMax is guaranteed correct as the only calibrated temp is TjMax.

BIOS temp readings are often taken from the motherboard temp sensor, not the CPU.
Be aware.
 
Most actual boards the load its 0% but in BIOS you have none of the Power Saving Features Actives, thats it.. some cheap low-end Motherboards (i know from experience for example with a Asus p8H61 M-LX) draw in BIOS as much power as it was like 100% load but no high stressed.. so yes in part its right that it differs from board to board and brand to brand..

about to check Temps by BIOS thats a fail error. most BIOS just report the Socket Temperature, only high-End motherboards report the CPU temperture directly from the DTS and its show as average.. with intel processors the Socket temperature its almost no important unless you have a bad mount, what its important its the Core temperatures and you need a 3rd party software as Hwmonitor, Core temp or real temp to check it.. for experience you can't trust in the CPU temp reported by AsRock mobos and MSI, Asus have in general good temp report and gibabyte too.. also intel in their high-end motherboards have exceptionally good temp report and some excellent monitoring tools..

what I can ensure its that actually in BIOS the CPU its no Loaded and also have none of the Power saving features actives, this its only by the fact that people that overclock need to know a precise voltage reading while messing with BIOS. and this its only possible disabling power saving features to keep a similar behavior that you could find at high CPU load.. thats it..
 
Not sure if it varies by board manufacturer.

I'm almost 100% positive that Asus boards have no load on the CPU while in bios.
 
the computer is using the cpu to do much of anything while you are in the bios. the bios might not even being accessing the cpu temp, but rather the socket's temp.


you need to use some sort of cpu temp monitoring software, even if its shitty asus third party software. and to have any meaningful value, the cpu needs to be doing something, so many recommend prime 95
 
=Gunslinger= said:
Not sure if it varies by board manufacturer.

I'm almost 100% positive that Asus boards have no load on the CPU while in bios.
Click to expand...

Mine has the option to load it or not. Most don't, but I think most put the BIOS under some load.
 
I was under the impression that most modern OS were actually crafted with the equivalent of a no-op. Older OS didn't have that. I know that when I used to run dos in vmware, it would peg a core at 100% even if I wasn't doing anything.
 
The only load you get in bios is that it takes to operate the bios, otherwise your CPU would be hot when in bios, like 50C+, not <35C.
 
The only load you get in bios is that it takes to operate the bios, otherwise your CPU would be hot when in bios, like 50C+, not <35C.
Click to expand...

Depends on the BIOS I have seen motherboards where in BIOS the temp was 50C.
 
drescherjm said:
Depends on the BIOS I have seen motherboards where in BIOS the temp was 50C.
Click to expand...

My current board does that as well.

Idle in Windows is around 30c. BIOS shows 50c+.

As for these friends of the OP who don't want to install temp monitoring programs... umm, exactly what are they doing with their computers that allows them to not install any "3rd party" programs?

The OS is a 3rd party program if you really want to get technical.
 
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