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Ideas wanted: reducing my OC temps, 955BE - Page 3

post #21 of 39
Quote:
Originally Posted by auraofjason View Post

My cpu temp is much higher (like 5-15c) than my core temp.
And you're saying the exact opposite of this
http://www.overclock.net/t/1128821/amd-temp-information-and-guide

That thread has some serious holes in it. Period. Until definitive information from AMD is provided (via new datasheets)- opinions are opinions, and customer service is a joke.
Quote:
Your temps will be fine, but running that voltage at that temps 24/7 would probably lead to some degradation.
^ 1.55 is that chips "maximum" definitely don't want to put more than 1.55v 24/7 through a Deneb chip, 4.2 on a 955 is pretty sweet though. thumb.gif Also, make sure you feel your VRM heatsink a few times during stressing as this can potentially damage your board during a peak condition.
Quote:
62C is not going to kill your chip. 70C on the cores will not kill the chip. However, that doesn't mean you should run it up there all the time. Cooler is better.
I stand by this. I'm known for letting mine get a little "warm". wink.gif
Quote:
H100. Will tame that chip with only 2 fans and remain quiet. You won't be dissapointed.
The H100 is only marginally better than the D14, Silver Arrow and TC14PE. He'd be better off to buy better fans. Oh, and the H100 is loud. AS HELL.
    
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post #22 of 39
Quote:
Originally Posted by mezmenir View Post

That thread has some serious holes in it. Period. Until definitive information from AMD is provided (via new datasheets)- opinions are opinions, and customer service is a joke.
How about this, from Alex Cromwell, Senior Technology Director, AMD. It's not a datasheet like you specifically want for some reason, but..
http://www.overclock.net/t/931241/interesting-information-from-amd-about-1090t
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post #23 of 39
Because it is an opinion. Until there is hard data, it's useless. I stand by their datasheets before their people, as the datasheets came with the processor designs, from the engineering teams.
Quote:
The Cpu temperature is read form a sensor embedded within the socket of your motherboard causing about a 7-10 Celsius variance form the actual Cpu temperature, which may be what you are reading about on the net.
From that thread is completely wrong by the way. Socket design specifics do NOT mention a sensor. Oh, and by the way- plug an AM3+ processor into an AM3 board. The sideband interface will fail to work, and thus a CPU (TCase) temperature can not be calculated, nor will dynamic vCore switching and fan speed control work. Why? Because the socket doesn't have a sensor. It's a diode on the chip that feeds a number to the board via THERMDA and THERMDC.
    
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post #24 of 39
Quote:
Originally Posted by mezmenir View Post

The H100 is only marginally better than the D14, Silver Arrow and TC14PE. He'd be better off to buy better fans. Oh, and the H100 is loud. AS HELL.

I have one, on my 4.0GHz 1.41V 960T as X6. It's not loud at all with stock fans plugged into pump headers. And it's not a gigantic tower cooler obscuring my mobo.
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post #25 of 39
Quote:
Originally Posted by 2thAche View Post

I have one, on my 4.0GHz 1.41V 960T as X6. It's not loud at all with stock fans plugged into pump headers. And it's not a gigantic tower cooler obscuring my mobo.

From personal experience, I had an H80 with the stock fans plugged into the pump header, and it was pretty damn loud. (And the TC14PE outperforms it by quite a large margin).

Thing is, yeah, -MY- H80 outperformed the TC14PE slightly, and probably was matched with the H100. The H80 and H100 both use the same pumps, but I did end up replacing the fans with Nidec AP30 (4250 RPM version), and they turned the pump into a bottleneck. It couldn't deliver heat fast enough, and it was fine and all- but just retardedly loud at peak load, but that's a given with Nidec fans.

Personally, I like my new TC14PE (D14 knockoff in red). OP would do better just to buy better fans for his existing D14 as that would increase it's cooling power to be fairly close to the H100. As it is, stock for stock, the H100 is only slightly better, and for the price of an H100 and good fans for it, you'd be best off to buy a Rasa kit. My suggestion just stands because OP already has the D14. (So I'm not going to say go replace your heatsink for a couple of degrees- the only LARGE gain here would be the Rasa kit).
    
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post #26 of 39
Quote:
Originally Posted by auraofjason View Post

How about this, from Alex Cromwell, Senior Technology Director, AMD. It's not a datasheet like you specifically want for some reason, but..
http://www.overclock.net/t/931241/interesting-information-from-amd-about-1090t

That is almost a direct contradiction to AMD's Thermal Data Sheet. The only way it makes sense is if the "Core temp" that Mr. Cromwell speaks of, is the TCase temp in the Thermal Data Sheet.
Quote:
The silicon and adhesives used in manufacturing these processors has a peak temperature rating of 97+ Celsius before any form of degradation will take place. The processor also has a thermal shut off safe guard in place that shuts the processor down at 90 Celsius.

This supports my point that 70C on the cores is fine.
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post #27 of 39
Quote:
That is almost a direct contradiction to AMD's Thermal Data Sheet. The only way it makes sense is if the "Core temp" that Mr. Cromwell speaks of, is the TCase temp in the Thermal Data Sheet.

It isn't. Because the thermal datasheet, and every other related datasheet specifies that TCase is a tangible number, and TCTL is an equational offset scale, based on celsius, but not "measurable" to any real estimation of the current temperature.

TCTL is infact the core temp, as we all know by know that the temperature that has equational offset is the core- that idles at retardedly low numbers. rolleyes.gif
    
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post #28 of 39
I know that it is an equation, you can see this by launching Prime95 on all cores and then stopping all but one. You'll see that as only one core is running at 100% load all of them have the same temp (+-1). If there were a sensor on each core then that core would have to be hotter than the others.
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post #29 of 39
Quote:
Originally Posted by schmotty View Post

I know that it is an equation, you can see this by launching Prime95 on all cores and then stopping all but one. You'll see that as only one core is running at 100% load all of them have the same temp (+-1). If there were a sensor on each core then that core would have to be hotter than the others.

Hadn't thought about that, but so true. +1
    
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post #30 of 39
The 1 thing most over looked is the case. The air flow and direction and amount of air move is one of the most over looked
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