Cpu reads as hotter than the sun

[Rlmva]

Does anybody know why my cpu is reading as hotter than the sun and my fans say they are at 66,000 rpm? I have an ASRock B450M HDV R4.0. I should mention I don't have any fans plugged in.

[Levent]

CPU VCORE: 4v. (About 4 times higher than it needs)

12V rail: 13.4v.

5v rail 6.12v.

3.3v rail 4v.

Yeah something is extremely wrong with your system. What PSU are you using?

[Helpful Tech Witch]

@Levent and right next to the surface of the sun CPU, there's a sub0 motherboard!

[Rlmva]

4 minutes ago, Levent said:

CPU VCORE: 4v. (About 4 times higher than it needs)

12V rail: 13.4v.

5v rail 6.12v.

3.3v rail 4v.

Yeah something is extremely wrong with your system. What PSU are you using?

I'm using a 600w EVGA 80+ W1. It's brand new and I only got it because I knew that they worked well. What also makes me think that its just wrong in the bios is that it boots into windows and doesn't BSD at all.

[Levent]

2 minutes ago, Rlmva said:

I'm using a 600w EVGA 80+ W1. It's brand new and I only got it because I knew that they worked well. What also makes me think that its just wrong in the bios is that it boots into windows and doesn't BSD at all.

If you have means to try with a different PSU, I would try that first. If not, I would RMA that motherboard AND that PSU just to be safe. Send this screenshot to the both companies as the reason behind RMA. 65535 is the maximum number a 16bit address space can allocate, that would either mean the logic chip that is reading those values are shorted or your PSU fried them.

[Rlmva]

32 minutes ago, Levent said:

If you have means to try with a different PSU, I would try that first. If not, I would RMA that motherboard AND that PSU just to be safe. Send this screenshot to the both companies as the reason behind RMA. 65535 is the maximum number a 16bit address space can allocate, that would either mean the logic chip that is reading those values are shorted or your PSU fried them.

I tried with a known good psu, no luck

[Mister Woof]

Sensors appear to be broken completely

 

I'd update the BIOS and reset the CMOS 

[PiberiusWilde]

Hahahaha!! That's kinda hilarious...

 

Yea I think there's something wrong with your motherboard

 

But does the fan spun up to full speed though?

[Rlmva]

9 minutes ago, PiberiusWilde said:

Hahahaha!! That's kinda hilarious...

 

Yea I think there's something wrong with your motherboard

 

But does the fan spun up to full speed though?

No, the cpu fan stays at low rpm

[PiberiusWilde]

5 minutes ago, Rlmva said:

No, the cpu fan stays at low rpm

Hmmm... Interesting

 

You mention that the computer works just fine but the temperature being displayed is off. My best guest is there's something wrong with the ADC (Analog to Digital Converter) on the sensor.

[Stanley Tan]

I know this is a very old post, incidentally, I am facing the EXACT same problem with my B450m Steel legend... apart from the weird reading on the CMOS, the pc also facing issue when waking up, the pc will simply restart/reboot instead of waking up...

 

Any idea what happened with your motherboard?  It will be nice to get some update

 

[seiryu]

On 6/6/2023 at 12:09 PM, Stanley Tan said:

I know this is a very old post, incidentally, I am facing the EXACT same problem with my B450m Steel legend... apart from the weird reading on the CMOS, the pc also facing issue when waking up, the pc will simply restart/reboot instead of waking up...

 

Any idea what happened with your motherboard?  It will be nice to get some update

 

You know what? I'm just caught in this madness, too. Yeah, EXACTLY same values it displays - monitoring system caches might have been overflowed.

 

being fried by PSU is highly suspicious for me though, as I just changed to EVGA supernova GA 750W 80+ (previously there's unreliable somewhat 500W PSU)

Somehow PC works, except for the amazing fan speed of plugging into CPU2 and all the CHA 1 through 3.

Actually, I hadn't recognized this problem, but when I was digging up to find out why newly installed VGA (RX 590 made by HIS)  barely breathing; only those two parts have been replaced.

I'd thought there's kinda power problem, and then found this problem.

I'm being quite confused that even these cases are whether dependent or not...

Now I'm going to try previous PSU first, and when there's no more room to figure out anymore by myself, I might have no other option but to contact ASRock for RMA...

 

I tried something like these:

- Update ROM BIOS from 3.50 to 3.60 (officially not recommended, as my CPU is Ryzen 2700X)

- and then back to 3.50

- clear CMOS numerous times (using jumper)

- attach/detach every parts including RAM

- plug fan controls to other connectors

 

If there's any progress to solve this problem, please anybody share your experience. :3

 

 

Ah, additionally, mine is not TURNING OFF. At the very last moment of shutting down(even num-lock light on keyboard is gone), it stuck; yet I can restart in OS however. Ah, what a legend.