AMD 64 CPU Diode temperature?

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Mikey1280 said:
Then why does it give two temperatures?
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Good point.

:o

I hadn't checked the box for the K8diodeythingy.

Man, the interface on this prog sux0rs.....talk about low contrast and hard to read.

@ 3.1 Ghz, 1.7v:

I'm getting 41'C fully loaded, and 46'C from the diode.
 
Yeah its really difficult to read, hmm your diode temps are lower than ours. Do you run 1.7v 24/7? Maybe your diode temps are lower coz your on water?
 
I looked into this a while back since MBM isn't right on everything. Opty 148 at 2867MHz 1.55V on DFI expert, folding load. Apex cooling.

MBM
Cpu 35
PWMIC 49
Chipset 47

NxSensor
Processor 47
k8diode ~40
PWMIC (aux?) 35
Chipset 49

For cpu I can choose between 35/40/47 degrees. I think the k8diode is probably most accurate, especially since mbm reckons I idle at ~20...

NxSensor reads 1.536 for vcore and 12.160 for 12v rail. MBM also read these before I changed the sensors on it (now 1.55 11.96).

I wish these programs were more straightforward :(
 
Its seams to have things a little topsy turvy compared to speedfan whilst im running prime and MEdia player.

It shows the Diode temp(40) the same as Speedfan for the CPU.
It shows the Processor(48) the same as Speedfan for the chipset temps.
It shows the Northbridge(34) the same as Speedfan for the mobo.
 
Mikey1280 said:
Yeah its really difficult to read, hmm your diode temps are lower than ours. Do you run 1.7v 24/7? Maybe your diode temps are lower coz your on water?
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Yup, 1.7v fully loaded 24/7. (Although, to be fair, I've only just switched to 1.7v - I've been running 3.05Ghz @ 1.65 24/7 until tonight, but I plan to run 1.7v 24/7 from now until Conroe ;))

My diode temps are probably similar to my CPU temp because I don't have any airflow over the socket area, meaning the CPU temp won't be artificialy cooled. So yes, it's 'cos I'm on water :)
 
Wow 1.7v and those temps! :cool:

That is spectacular cooling you have there Jimbo. I'm gonna have to get into water cooling too. :)
 
str said:
Wow 1.7v and those temps! :cool:

That is spectacular cooling you have there Jimbo. I'm gonna have to get into water cooling too. :)
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Thanks. It's pretty much the best watercooling you can get, partly because I specced and bought it all before I bought the rig, so I could afford to splash out (no pun intended). Procooling helped too.
 
Yeah the conflicting information is annoying although we can see 52c and 57c in nxSensor which is also being reported in MBM except they're labelled differently. The 59c in nxSensor prolly would be also visible in MBM by configuring sensor 3 with one of the unused sensor lines.

I wonder if the on-die thermal diode reports differently for dual core CPUs which again makes it even more confusing.

I wish I could find public domain info on the sensor programming as I could easily write my own temp reading program if I had something to go on (I can do kernel programming, etc) and also get help on here to research the results. I've tried searching google though but haven't found much at all. :(
 
Yeah, looks like Next Sensor is not naming the temp probes correctly.
I am confident with my motherboard monitor though, except for the voltages as these clash with the monitor program supplied on the mobo CD.
I have only 1 fan thats being monitored and thats a 120mm running on 7v/ the PSU fan is a variable 120mm too which I've never heard spin very fast, so NextSensor has got that wrong.
 
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I removed the stock cooler and it's real obvious it wasn't making very good contact with the CPU. The thermal compound wasn't spread very thinly on the CPU and heatsink suggesting there wasn't enough pressure on the CPU. I've no idea why the motherboard CPU temperature wasn't reporting the bad contact but for sure the on-die thermal diode was!

I've installed a new Freezer 64 Pro which is making very good contact and at 1.525v at 2.6Ghz the motherboard CPU temp is 38c and the thermal diode temp is 62c while running Prime95. :cool:

Also my DFI UT NF3 250Gb's CPU temp reporting looks to be useless as it's idling at 29c and the load of 39c vs the thermal diode temp of 62c is way too much of a difference for my liking. :rolleyes:
 
Juno, CPU-Z should report the sensor used on your motherboard and hopefully it's accurate. You can find it in the CPU-Z Mainboard tab and whatever it says is hopefully available as a selection in NextSensor which should get you the correct voltages/fans speeds/temps.
 
Yeah I guess it's each program matches the sensor temperatures to whatever labels the programmer decided to use hence why different programs label the sensor readings differently.

I guess it's motherboard/sensor chip specific so only way to match them up is to have a database of motherboard/sensor chips/correct labels or allow the user to match them up manually. :(

Also running lots of sensor reading programs at once can result in different temperatures depending on the update frequency and the accuracy when for example two programs read the sensors at the same time. The temps can fluctuate too hence why a few degrees difference can appear in one program compared to another.
 
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str said:
I guess it's motherboard/sensor chip specific so only way to match them up is to have a database of motherboard/sensor chips/correct labels or allow the user to match them up manually. :(
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Hmm so i guess my mobo monitor provided by dfi is accurate then?
 
SmartGuardian? I would say so as I've checked it on mine and it reports the same as my properly configured/labelled Next Sensor results. It also helps to understand VCOREB in Next Sensor, it's the chipset voltage and it matches the chipset voltage in SmartGuardian.
 
Ok so on standard cooling, runs the same at 2.6 260x10.

stable%20cpu.JPG


Do you still want, need it with the other program?
 
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Here's mine running two Prime95s and shows SmartGuardian and Next Sensor:



Hopefully I won't get any freezing/crashing/Prime95 failing as the temps are looking good so far.
 
The main thing with Next Sensor is you can enable the reading of the on-die thermal diode which should give you an idea of the real maximum temperature your CPU is reaching and I would guess with your current setup it'll be around 65c to 70c?
 
str said:
The main thing with Next Sensor is you can enable the reading of the on-die thermal diode which should give you an idea of the real maximum temperature your CPU is reaching and I would guess with your current setup it'll be around 65c to 70c?
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Is that bad, good?
 
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