Program other than SpeedFan

[PorPorMe]

SpeedFan is to buggy for my tastes. Some Times it will show a fan or temp and some times it would't.
Inthe proccess of looking I found this page. It gives short, concice, info, something I like.
How do I monitor CPU temperature?

[MUff1N]

Originally Posted by PorPorMe

SpeedFan is to buggy for my tastes. Some Times it will show a fan or temp and some times it would't.
Inthe proccess of looking I found this page. It gives short, concice, info, something I like.
How do I monitor CPU temperature?

Yea, Speedfan is a bit buggy that way but out of ALL of the temp software monitors I've tested it's still the best of the bunch.
Whenever it shows readiings that it shouldn't I just uncheck those boxes to remove them & forget about it.
That usually happens when you make changes to the Bios.

That site offers nothing I haven't already seen & checked out & seems a bit old.
Motherboard Monitor is Very Outdated & basically useless anymore.
HW monitor is OK, but it doesn't show me near as much information as Speedfan does.

Hey PPM, you need to go into the Advanced section of Speedfan to set it all up. It also has offsets for reading that aren't exactly accurate too.
Just dig around in there for a while & you'll figure out all the features & setting is does offer.
As I said, out of all the software out there that monitors your system Speedfan is still one of the best.

[PorPorMe]

I didn't post that site for any program it had to offer, just the info it had was the way I like it-clear, concise, short, and on point-right in one place.
Anyone can get something here.

[Áedán]

They missed out the use of ACPI to monitor temperatures too - a lot of systems can provide temperature information through their ACPI implementations, which saves having to write code specifically to communicate with the hardware.

[PorPorMe]

After reinstalling HSF Speed Fan doesn't recogonize a single fan. I have three 4 pin and one 3 pin and zip.
I'm not sure if thiis is accurate or not, but it feels like every time I change some hardware or have to reinstall Speed Fan-it gives a different reading every time. And this is the best?

Gizmo!
With your background, I would think you could become a rich man with a program that works!

[Gizmo]

Originally Posted by PorPorMe

Gizmo!
With your background, I would think you could become a rich man with a program that works!

If I had a nickel.......

Actually, the problem you are seeing with inaccurate readings stems, I think, from the inherent inaccuracy of the sensors (or more correctly, the inherently inaccurate implementation of the sensors).

Mobo sensors are based on a 'band-gap' temperature sensor, which is implemented in one of two ways:

• A silicon NPN transistor has the base and collector tied together in what commonly called a 'diode connected' configuration, with the emitter grounded, and the collector tied to a voltage sensor.
• An actual diode is used, with the cathode grounded and the anode tied to a voltage sensor

A known reference current is then applied and the voltage drop across the temperature sensor is measured.

It turns out that the voltage drop across the band-gap in such a configuration is VERY predictable relative to temperature, ONCE THE DEVICE IS CALIBRATED. Calibration is the key. Typically, the sensor will be accurate to about +/- 5C (about +/- 9F), and how accurately it reflects the real temperature is a function of the temperature being measured.

However, if the device is calibrated (which involves applying two reference currents that differ by an order of magnitude, and then doing some complex math), you can get the accuracy of the device to about +/- 1/2 degree C (in some cases, even better than that).

The problem is, no mobo I know of is even CAPABLE of performing the calibration, much less actually doing it.

I've not personally verified this, but I've gathered that at least SOME BIOSes attempt to apply a SWAG offset to calibrate the diode based on behavioral data gathered from a production run. They will also attempt to SWAG the calibration based on the current temperature at the time POST runs, which means that the calibration can change between reboots, even if the temperature doesn't.

I've also heard (though I've not verified) that both Intel and AMD are actually calibrating their internal temp sensors on their latest CPUs, and that the calibration data are used to provide a more accurate temp reading of the CPU temp sensor.

[PorPorMe]

It's the fan readings that are giving me fits! the temps are backed up by a couple of different programs. Here is the latest example. I'm in another thread with this pic on Starting to OC this rig

[PorPorMe]

I owe Speed fan an apology. I just went thru my bios and it only showed 1 fan running. when It finished the boot-Speed fan showed 1 fan running. The bios needs some investigation.

[PorPorMe]

I've started to use the new HWMonitor. It is a lot more concsice, and I've neve needed speed control with F@H running 24/7.
CPUID