CPU Temps not showing Properly

[Scrachdat]

Hello this is my first post so please excuse any mistakes but let me know of them.

 

so just recently I finished building a new system

CPU: AMD FX-4350 4.2Ghz 125W TDP 12Mb cache

Mobo: MSI 970a-g43

GPU: Asus Nvidia Geforce GTS 450

 

So I am having a few problems with the build, I have a cooler master hyper 212 evo for my cpu cooler.

 

So one problem I am having is that after windows boots it can't seem to detect the CPU temps I have used Speed fan, CPUID Hardware monitor and AMD overdrive, but it seems they all display ridiculous numbers like 12 to 17 degrees C

 

However on speed Fan temp 2 comes up as 43- 50 degrees and up to 60 on full load, this seems more logical for the cpu temp

 

but i have noticed this temp goes up, but the cpu fan speed does not go up to cool it down?

I have two system fans hooked up one stays at a constant 930 Rpm and the other at 0 rpm??

But it is spinning i can see it.

 

I can't seem to control the system fans(3 pin connectors) at all I think i should be able to right?

 

so after that, I want to know why my cpu fan does not increase speed when the cpu gets hotter and why i can't control either of my system fans and why one is at 0 rpm all the time, when it is clearly spinning?

 

Thanks sorry it's so long.

[PhiberOptik]

It looks to me something is wonky with your sensors, I would make sure you are running the latest chipset drivers from the manufactures website, also you might want to make sure your Bios is up to date. PWM fans or 4 pin connector fans are the ones you can control the speed of with software, 3 pin fans you control the speed of by using resistors inline with the fan to limit the voltage, basically those add in cables you see with a lump in the cable that sometimes come with fans or heatsinks. Temp 2 is probably a motherboard sensor, also try only running one sensor monitoring software, sometimes they goof each other up. I would try just HWMonitor, if it doesn't work the first time try closing and reopening it.

[Scrachdat]

Well I updated everything my mobo bios and the msi utilities off their website, msi control center seems to show the correct cpu temps, and I can control my cpu fan and my system fan 1. cpu fan is pwm and system fan 1 is a 3 pin connector, but my 3rd fan doesn't show up at all, and hardware monitor still doesn't show the correct cpu temps and neither does speed fan, not sure what's going on but at least i can see the temps.

 

any idea what is up with my other fan?

[-rascal-]

In HWMoniotor, you are looking at the wrong thing.

The Package temperature is not accurate during idle, but should be relatively accurate when the CPU is under load.

If you want to see a more accurate reading, scroll up a bit in the HWMonitor menu.

This is another fourm member's CPU -- he also was making the mistake by looking at the "Package" temperature.

Under "Temperature" there is a reading actually labelled as "CPU." This is basically bang on with what the BIOS shows. If you look, my "Package" temperature is also very low...my room temperature at the time was around ~15*C).

For the heck of it...

Regarding to AMD OverDrive, depending on where in the software you are reading the temperature, it will show the margin you have left before reaching the thermal limit. So as your CPU heats up, the temperature will actually decrease...as it is showing the headroom you have left.

Comparing my "Temperatures" > "CPU" temperature reading from HWMonitor, with my own "FAN0" temperature reading in AMD OverDrive (installed it to post on this topic), they are identical. If your "FAN0" is your CPU_fan, then that it is likely that IS your CPU temperature (39*C)

[Scrachdat]

Oh okay well thanks that clears things up, with the AMD overdrive I understand now.

 

Your asus motherboard shows CPU temps and it's labelled cpu, that's the temperature sensor on the motherboard not the actual CPU and you saying that my TMPin0 should be the same as your CPU sensor. 

well I opened HWmon.. and the I opened MSI click bios MSI click bios reads 5 degrees hotter than HWmon.. should I just say this is a margin of error, because I opened hwmon first then msi then i closed both and opened in reverse (click bios first) and they still don't read the same temps.

 

I think I'll just trust MSI cpu temps  they seem to make most sense.

 

and PhiberOptik It seems you were right with the resistor as you can see form the pictures there is a resistor on the 4 pin PWM fan header, but not on the 3 pin fan header. which leads me to ask why would MSI bother putting 3 pins if it can't be controlled wouldn't it be better to just not have the 3 pin?

but thanks