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Old 02-24-2008, 09:28 PM
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Default heatsink doesn't get hot

On max load I get ~50C with my Athlon 5000+ OCed.
If I OC it to 3150 and up the voltage to 1.45 then my max temp is ~60C.
But the thing is that the heatsink or the heatpipes don't even get hot. They just stay warm.

I have reseated the heatsink twice. First with the supplied thermal grease the second time with my own thermal grease the results were the same.

Is this normal since I thought that the heatsink draws the heat away from the CPU thus it should have similar temperature than the CPU.

ps. This PC is not in the case. It is laying on my desk. Still waiting for the GMC H70 case to arive.
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Last edited by ashrack; 02-26-2008 at 02:33 PM..
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Old 02-26-2008, 03:42 PM
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Hello again =)

There should be no real problem I guess. How do you read the temps? Some tools are reading it using the thermal sensor close to the cores. If you get closer to the heat source, the temps increase automatically and change faster depending on the core(s). Some tools also read the temps different with different versions.

Did you try to mount the CPU Cooler 90° or 180° turned? The contact to the IHS could be better or worse that way. AMD IHS are usually flat so I am not sure if this will have any effect.
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Old 02-26-2008, 04:05 PM
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did turned but nothing has changed. I measure the temperature with HWMONITOR which outputs correct temperatures according to bios.
So it is normal that the heatsink doesn't get hot just warm?
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Old 02-26-2008, 05:01 PM
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Hi,

well, I would rather trust Core Temperature than the BIOS. The temp reading in BIOS change from BIOS version to bios version, so you can not trust bios either. It is a bit sticky. If the heatsink get's warm, then everything is fine. The 60°C seems to be provided by the BIOS and I dunno which sensor it is using. Si basically I'd say it is "ok" if you have overclocked it as well. I got a X2 5000+ running right now besides me on a Gigabyte GA-MA790GX-DS5.
Coretemp: 33/38°C, Heatsink fin-termps already 43°C, Ambient 24,5°C.

You can not trust them blindly. Everest does not even know what temps there are =P
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Old 03-06-2008, 03:27 PM
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Unfortunately Core Temps are not correct when it comes to AMD Brisbanes
Because the DTS reading in the CPU is broken and outputs about 15-20C lower temperatures than it should.
Here is HWMONITOR PIC and check for the difference between CORE TEMP and motherboard sensor:
Shrani.si - BrezplaÄna spletna shramba za vaÅ¡e datoteke.
Here's a reference where AMD has confirmed that it is a bug:
ALCPU Forums :: View topic - Low temperature readings with 'Brisbane' (RevG)

So I I guess I can only trust the motherboard temperatures.

Are you sure that I didn't mount Scythe wrong. Now I am running the CPU at 3000MHZ /w 1.38v and the maximum temperature is ~54C with the FAN set at 50% power but the HS is barely warm. And if heatsink is measured by a diode it says 29C.
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Last edited by ashrack; 03-14-2008 at 09:39 PM..
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Old 03-19-2008, 01:52 PM
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Hi,

I got one of the buggy CPUs now as well. It's a X2 5000+ and I get temps around 8°C which is way under the ambient temps with core temps. Then the temps could be "accurate" but I don't trust the Mobo Sensors to start with. The sensor might be way off the real temp and I can't tell where the sensor is and how it calculates/reads.
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Old 03-19-2008, 02:06 PM
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Shinigami
I find it shameful that AMD doesn't do anythink about this bug. And it won't even reply to my email about this.

So let us assume that the mobo temperature's are correct and that the cpu is 55C. Shouldn't the HS be hot than?

Here is a picture of how it looks like:



offtopic:
Glad to have you back on the board How did CEBIT go?
I must tell you I am very pleased with your HSF. Especially the price/performance ratio.
/offtopic
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Last edited by ashrack; 03-19-2008 at 02:13 PM..
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Old 03-19-2008, 02:21 PM
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My Ninja gets warm when CPU reaches 70 degrees but it never gets hot.


Bye Oliver
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Old 03-19-2008, 05:58 PM
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Yeah, glad to be back, cleaning up these days. I am glad, that I could go through all the forum threads finally. I really felt already bad. Only one guy was really mad because of our absence

ashrack: AMD is busy, for me it also takes time to get an answer, this is a big company, so it is not that easy. The bug seems to be fixed with other CPUs. The sample I have, is directly from AMD, so it might be one of the early batches.
Let's assume it is 55°C as you said. following 2 options.
1. Sensor is hidden in the PCB close to the CPU
2. The BIOS is using a calculation or reads out somehow else
My assumption is rather for 1st option. The CPU Cooler should be warm, but this is it. If the system is stable, then I would not bother, because there is virtually no way for you to find out core temps. You could modify the IHS but this is a pain...too much work for an external sensor. I recommend you to adjust the system to be silent and leave it as it is. The temps won't hurt your CPU. You can probably touch the IHS, but it should be just warm. Just for your information. I was cooling the buggy 5000+ fanless with Orochi, everything was fine.

As Oli said, the temperatures with core temps are also really high but the cooler is maybe just warm. I am not really concerned, but too bad the bug forces you to use the mobo sensors...

offtopic:
Thanks a lot. We will work on improvements. CeBIt was good. We got good attention, keeps getting better ^^
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