Testing overclock on my 8350: wacky cpu temp diode

CooLWoLF · Jul 13, 2013

I am testing out my overclock on my 8350. So far I am at 4.3ghz @1.4v, but my temp diode is going wacky. My system is running Prime stable though. My question is, since I can't trust my cpu temp diode, what about my liquid temp sensor in the radiator? It currently reads my liquid at rough 40c. Any thoughts?

saintpanache · Jul 13, 2013

What is wacky about your temps reading?

ingtar33 · Jul 13, 2013

CooLWoLF :

the mb socket temp is usually accurate within 5C or so (it's usually the first temp reported by the mb if it's not labeled), for example, on my mb it's within 2C of the reported core temp... remember, the liquid temp in the cooler, depending where the thermometer is located, won't be all that close to the actual cpu temp if your liquid loop is working properly.

CooLWoLF · Jul 13, 2013

saintpanache :

Wacky like it jumps from 45c to 255c, so I know its not working properly; yet the liquid temp remains 40c.

Buzz247 · Jul 13, 2013

This sounds more like a driver sensor signal error. What are you using to read temps? Using more than one prog?

What board is this too please? There are 2 sensors possible involved. Socket or internal chip. Both send signal to a super I/o chip. Most commonly Nuvoton chip.

CooLWoLF · Jul 14, 2013

Buzz247 :

MSI 970a-g46 motherboard. I am using Core Temp and HW Monitor. Both are reporting the wacky temps. For the liquid temp, I am using Chill Control V (came with my Asetek AMD FX liquid cooler). Still stable; tested last night with a few hours of playing BF3.

Buzz247 · Jul 14, 2013

Never use multiple monitoring programs at the same time - it can cause issues like this as the .dll and driver data gets corrupted.

Uninstall both, reinstall, use only one at a time. I have seen this issue cause registry corruption bad enough that full windows reinstall was needed

CooLWoLF · Jul 14, 2013

Buzz247 :

Oh I didn't mean I use HW Monitor and Cor Temp at the same time. Just that I have used both for testing. What I do run together is Core Temp and Chill Control. The Chill Control app is what ramps up my fan speed as the liquid heats up. Would these two programs be conflicting?

Buzz247 · Jul 14, 2013

Absolutely. They are using the same data to perform their separate tasks. Consider a digital fan controller in stand alone? Full boat ones can be around 50-60usd. You can go relatively cheap with massive performance with a Poweradjust2 Ultra - lil pcb that can function as standalone temp controlled fan controller) or Aquareo 5 LT (the base version) which handles 4 channels, and the Poweradjust2 works with it for up to 10 channel control over USB software. That is the high end of control granted

CooLWoLF · Jul 14, 2013

Buzz247 :

I was under the assumption that there was a separate sensor inside my radiator/water pump that reads out my liquid temp in Chill Control.

Buzz247 · Jul 14, 2013

wait a min - what cooler are you using?

CooLWoLF · Jul 14, 2013

Asetek branded AMD FX water cooler
http://www.asetek.com/liquid-cpu-cooling.html

Buzz247 · Jul 14, 2013

sorry I was under impression chill control also read CPU data and incorporated in software output.

Still, there are 2 possibilities:
1) registry data corrupt and causing misreads
2) variations actually occurring at rapid level causing misread, which indicates, thermal throttling via voltage

#1 seems more likely to me, being that you don't see it in BIOS. When reading chip info in bios, all power saving features are non functioning and chip is going 100%. So very pure data.

CooLWoLF · Jul 14, 2013

Buzz247 :

If the Core Temp program is reading way off temps at a certain point then, does that mean the PC starts throttling itself?

Buzz247 · Jul 14, 2013

Wacky like it jumps from 45c to 255c,

This is not throttling - this is driver/signal issue

CooLWoLF · Jul 14, 2013

Buzz247 :

Any idea how to fix it since I get the same reporting in Core Temp and HW Monitor?

Dark Lord of Tech · Jul 14, 2013

1.4v < is high for barely being overclocked.

CooLWoLF · Jul 14, 2013

I am up to 4.4ghz now actually at 1.41v. What voltage would be typical for this speed?

Dark Lord of Tech · Jul 14, 2013

I have an Asrock 990FX Extreme 9 , so comparisons are mute.

CooLWoLF · Jul 14, 2013

I see. But then what makes you think 1.4v is high?

Dark Lord of Tech · Jul 14, 2013

I have 5.1ghz at 1.384 volts.But hardware is way different.

Dark Lord of Tech · Jul 14, 2013

FX8350 at 5.1 ghz.\1.384 volts\Phanteks PH-TC14PE\110 CFM Scythe Fans\Asrock 990FX Extreme 9.

CooLWoLF · Jul 14, 2013

Wow that's really impressive! Anytime I have seen someone get a ~5ghz overclock its at or close to 1.5v.

Dark Lord of Tech · Jul 14, 2013

Very lucky!

On my new 8350 build with my sabertooth I'm up to 4.7.

CooLWoLF · Jul 14, 2013

Here's a question for you. I have noticed that whenever I read a guide or look up others experience with overclocking AMD chips, they say to disable Cool N Quiet. Is this simply for stability purposes or some other reason? I have it enabled currently without issue.

Testing overclock on my 8350: wacky cpu temp diode

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