Bad CPU temperature sensor in motherboard? (MSI Z97 Gaming 7)

[Andanas]

I've decided that I would finally take the plunge, and overclock my i5-4690k.  But before I started, I wanted to run some stability tests at stock.  I downloaded Prime 95, and Real Temp.  My CPU's starting temperature was around 29-32C.  When I started Prime 95, I noticed something, my cpu temperatures never budged, not even a little.  I wasn't noticing any activity in Prime 95 (maybe I wasn't using it right?), so I downloaded Aida 64, and started the stress test within it.  Even after about 10 minutes, the temperature still hadn't budged.  I thought maybe Real Temp was the issue, so I started using MSI Afterburner to monitor CPU temperatures.  Still the same result, even after 10min of Aida 64 stress test, still no change in temperature.  I even started up a game (AC Unity), and still no change in CPU temperature.

 

I'm wondering if I have a faulty CPU temp sensor on my MB.  I don't have a spare MB to swap out to test that idea.  Now I only let the tests run for about 10 min before I stopped them.  Does it take longer to see an increase in temperature?  I figured it would be almost immediate. I have no idea what to try next.

 

 

MB - MSI Z97 Gaming 7 (Bios 1.A0 the latest)

CPU -  i5-4690K @3.5 GHz

COOL - Cooler Master Hyper 212 EVO w/ 2 fans in push/pull

GPU - MSI Gaming 4G GTX 970

RAM - 16 GB Corsair Vengeance 1866MHz

HDD - OCZ 250GB SSD, WD Velociraptor 300GB, WD Black 1TB

PWR - EVGA 850G2

[Naeaes]

The temps should start rising as soon as there's stress. 10 minutes is plenty.

 

If your theory is correct and the sensor is faulty, I'd imagine the figures in BIOS will be off too. Heat the system up, shut it down and enter BIOS really fast.

 

You could also keep trying to find a compatible software. HWMonitor and Speedfan come to mind. Intel has a sensor in each core. Seems unlikely for all of them to fail.

[Andanas]

I did run Aida 64 for about 10 min, then quickly rebooted to the BIOS, temp in there was 31C.  Im not sure if the CPU is reporting the wrong temp, or if its the MB.

[Andanas]

I tried HW Monitor, and Speed Fan.  Both of them gave me the same results.  About the only thing I haven't tried is switching to the second BIOS, and trying again.  I'm just not sure if that would make a difference or not.

[Pugs501]

check the Debug LED

[arniks8]

First off, I apologize admins, this is a double post. I posted this originally in the 'Community Portal -> Troubleshooting' thread, but thought it might be best to post it here.

------

I've decided that I would finally take the plunge, and overclock my i5-4690k. But before I started, I wanted to run some stability tests at stock. I downloaded Prime 95, and Real Temp. My CPU's starting temperature was around 29-32C. When I started Prime 95, I noticed something, my cpu temperatures never budged, not even a little. I wasn't noticing any activity in Prime 95 (maybe I wasn't using it right?), so I downloaded Aida 64, and started the stress test within it. Even after about 10 minutes, the temperature still hadn't budged. I thought maybe Real Temp was the issue, so I started using MSI Afterburner to monitor CPU temperatures. Still the same result, even after 10min of Aida 64 stress test, still no change in temperature. I even started up a game (AC Unity), and still no change in CPU temperature.

I'm wondering if I have a faulty CPU temp sensor on my MB. I don't have a spare MB to swap out to test that idea. Now I only let the tests run for about 10 min before I stopped them. Does it take longer to see an increase in temperature? I figured it would be almost immediate. I have no idea what to try next.

MB - MSI Z97 Gaming 7 (Bios 1.A0 the latest)

CPU - i5-4690K @3.5 GHz

COOL - Cooler Master Hyper 212 EVO w/ 2 fans in push/pull

GPU - MSI Gaming 4G GTX 970

RAM - 16 GB Corsair Vengeance 1866MHz

HDD - OCZ 250GB SSD, WD Velociraptor 300GB, WD Black 1TB

PWR - EVGA 850G2

I did run Aida 64 for about 10 min, then quickly rebooted to the BIOS, temp in there was 31C. Im not sure if the CPU is reporting the wrong temp, or if its the MB.

I tried HW Monitor, and Speed Fan. Both of them gave me the same results. I also switched to and updated the second BIOS. Still no budge in temps when running Aida64 stress test.

Anyone have any ideas?

Your CPU temperature sensor seems faulty. Intel CPU's have temperature sensor on CPU not MB.

[Nena Trinity]

 

First off, I apologize admins, this is a double post.  I posted this originally in the 'Community Portal -> Troubleshooting' thread, but thought it might be best to post it here.

 

------

 

I've decided that I would finally take the plunge, and overclock my i5-4690k.  But before I started, I wanted to run some stability tests at stock.  I downloaded Prime 95, and Real Temp.  My CPU's starting temperature was around 29-32C.  When I started Prime 95, I noticed something, my cpu temperatures never budged, not even a little.  I wasn't noticing any activity in Prime 95 (maybe I wasn't using it right?), so I downloaded Aida 64, and started the stress test within it.  Even after about 10 minutes, the temperature still hadn't budged.  I thought maybe Real Temp was the issue, so I started using MSI Afterburner to monitor CPU temperatures.  Still the same result, even after 10min of Aida 64 stress test, still no change in temperature.  I even started up a game (AC Unity), and still no change in CPU temperature.

 

I'm wondering if I have a faulty CPU temp sensor on my MB.  I don't have a spare MB to swap out to test that idea.  Now I only let the tests run for about 10 min before I stopped them.  Does it take longer to see an increase in temperature?  I figured it would be almost immediate. I have no idea what to try next.

 

MB - MSI Z97 Gaming 7 (Bios 1.A0 the latest)

CPU -  i5-4690K @3.5 GHz

COOL - Cooler Master Hyper 212 EVO w/ 2 fans in push/pull

GPU - MSI Gaming 4G GTX 970

RAM - 16 GB Corsair Vengeance 1866MHz

HDD - OCZ 250GB SSD, WD Velociraptor 300GB, WD Black 1TB

PWR - EVGA 850G2

 

 

I did run Aida 64 for about 10 min, then quickly rebooted to the BIOS, temp in there was 31C.  Im not sure if the CPU is reporting the wrong temp, or if its the MB.

 

I tried HW Monitor, and Speed Fan.  Both of them gave me the same results.  I also switched to and updated the second BIOS.  Still no budge in temps when running Aida64 stress test.

 

Anyone have any ideas?

 

Mine is at 35ish on idle and goes to 75c on full load with all cores.

But I have a FX-8370 so not sure if i5 should be that high or not...

[Andanas]

check the Debug LED

 

Checked that, and it's showing the CPU temp, which is what it does when it fully boots.

[arniks8]

Mine is at 35ish on idle and goes to 75c on full load with all cores.

But I have a FX-8370 so not sure if i5 should be that high or not...

Intel has temperature sensor on CPU not MB, this isn't related to MB.

[Andanas]

Your CPU temperature sensor seems faulty. Intel CPU's have temperature sensor on CPU not MB.

Oh, I thought the sensor was on the motherboard.  I'm actually relieved, swapping out the CPU will be much less of a headache than the MB itself.

[itachipirate]

Have you tried clearing CMOS?

[Nena Trinity]

Intel has temperature sensor on CPU not MB, this isn't related to MB.

AMD has no sensor in CPU?

[arniks8]

AMD has no sensor in CPU?

Nope on MB. That's why some software show weird temperature on AMD's CPU's and it's less accurate.

[ChatDaw]

Mine is at 35ish on idle and goes to 75c on full load with all cores.

But I have a FX-8370 so not sure if i5 should be that high or not...

75°C on an FX chip seems really bad to me...

[arniks8]

Oh, I thought the sensor was on the motherboard. I'm actually relieved, swapping out the CPU will be much less of a headache than the MB itself.

How long do you have your CPU?

[Nena Trinity]

Nope on MB. That's why some software show weird temperature on AMD's CPU's and it's less accurate.

So my temps at 75 max can be less or more?

 

Edit: It randomly spikes to 80+ for a second...

 

75°C on an FX chip seems really bad to me...

It says so but it could be wrong cause it clearly does not throttle!

[arniks8]

So my temps at 75 max can be less or more?

I don't know, but if I remember correctly then temperature shouldn't go above 70°c ( it's colder outside of the CPU than inside it ).

[Nena Trinity]

I don't know, but if I remember correctly then temperature shouldn't go above 70°c ( it's colder outside of the CPU than inside it ).

Most games pushes it to 65c but game such as Cities Skyline is what presses it to 75c...

[Andanas]

How long do you have your CPU?

I only built this computer back in February-March of this year, so it's still under warranty.  At least it better be.

[arniks8]

I only built this computer back in February-March of this year, so it's still under warranty. At least it better be.

I suggest to RMA it since this clearly is an temperature sensors fault.

[Andanas]

I suggest to RMA it since this clearly is an temperature sensors fault.

Yea, Im going to.  Just need to get the FPO, and ATPO numbers.  I think FPO = Batch# on the box label, but I'm not sure what the ATPO number is, on the box.  I'd like to get that number and fill out the RMA request, while I still have my PC up and running.

 

And thanks Arniks8, I would've ended up RMA'ing my motherboard, if you hadn't said the sensor is on the CPU.   :lol:

[arniks8]

Yea, Im going to. Just need to get the FPO, and ATPO numbers. I think FPO = Batch# on the box label, but I'm not sure what the ATPO number is, on the box. I'd like to get that number and fill out the RMA request, while I still have my PC up and running.

And thanks Arniks8, I would've ended up RMA'ing my motherboard, if you hadn't said the sensor is on the CPU. :lol:

Where did you bought your CPU that you need FPO and ATPO numbers?

[DominicNikon]

First off, I apologize admins, this is a double post. I posted this originally in the 'Community Portal -> Troubleshooting' thread, but thought it might be best to post it here.

------

I've decided that I would finally take the plunge, and overclock my i5-4690k. But before I started, I wanted to run some stability tests at stock. I downloaded Prime 95, and Real Temp. My CPU's starting temperature was around 29-32C. When I started Prime 95, I noticed something, my cpu temperatures never budged, not even a little. I wasn't noticing any activity in Prime 95 (maybe I wasn't using it right?), so I downloaded Aida 64, and started the stress test within it. Even after about 10 minutes, the temperature still hadn't budged. I thought maybe Real Temp was the issue, so I started using MSI Afterburner to monitor CPU temperatures. Still the same result, even after 10min of Aida 64 stress test, still no change in temperature. I even started up a game (AC Unity), and still no change in CPU temperature.

I'm wondering if I have a faulty CPU temp sensor on my MB. I don't have a spare MB to swap out to test that idea. Now I only let the tests run for about 10 min before I stopped them. Does it take longer to see an increase in temperature? I figured it would be almost immediate. I have no idea what to try next.

MB - MSI Z97 Gaming 7 (Bios 1.A0 the latest)

CPU - i5-4690K @3.5 GHz

COOL - Cooler Master Hyper 212 EVO w/ 2 fans in push/pull

GPU - MSI Gaming 4G GTX 970

RAM - 16 GB Corsair Vengeance 1866MHz

HDD - OCZ 250GB SSD, WD Velociraptor 300GB, WD Black 1TB

PWR - EVGA 850G2

I did run Aida 64 for about 10 min, then quickly rebooted to the BIOS, temp in there was 31C. Im not sure if the CPU is reporting the wrong temp, or if its the MB.

I tried HW Monitor, and Speed Fan. Both of them gave me the same results. I also switched to and updated the second BIOS. Still no budge in temps when running Aida64 stress test.

Anyone have any ideas?[/quote do not use prime 95 on intel

[Andanas]

Where did you bought your CPU that you need FPO and ATPO numbers?

I bought it at Microcenter.  When I was on Intel.com looking up warrenty information, it wanted the FPO, and ATPO number.  Though when I filled out the service form, it never asked for those numbers, so I guess I didnt need em after all.

[arniks8]

I bought it at Microcenter. When I was on Intel.com looking up warrenty information, it wanted the FPO, and ATPO number. Though when I filled out the service form, it never asked for those numbers, so I guess I didnt need em after all.

Yeah I was wondering why would you need those numbers.