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What are YOUR 990FX northbridge Temps? - Page 2

post #11 of 92
Thread Starter 
Quote:
Originally Posted by Nephrahim;15600134 
If you drop into the 990XA-970A topic, we've had the exact same discussion about kind of high Northbridge temps.

Personally, mine used to peak at 72-3 before I applied some thermal paste to it. Now it goes to around 62-5 at peak.

I made this thread to get some of the temps from other boards and users. I know exactly what temps the NB of a 990FX board should be. 55-65c is normal. Its how the chip works. However there are some users who where bashing Gigabyte about it, Calling it a defect. I made this thread to gather info on ALL 990FX NB chip's on all diff mobo's. Just so we can settle the debate's about what is acceptable or not. The 990FX NB is the new Fermi if you will. but thank you for the offer.

If AMD would have published info on the temp's that are acceptable this whole debate could have been avoided....

EDIT: your club is just as confused as my club as to what acceptable temps are, and what the sensors are monitoring......
What sucks the most is people refuse to listen when told proper info on such things.
Edited by KhaoticKomputing - 11/6/11 at 9:21pm
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post #12 of 92
TMPIN2 must be faulty.. Start up the computer and the temps are ~50C. Keep HWMonitor open, put the pc in hibernation and wake it up. Temps will then show mid 30s at idle. wink.gif Well it actually follows the core temps at all times.
TMPIN0 is not moving, so that makes me think it's the NB or system temp. No reason for the NB to fluctuate much. But it's warmer than what the HWm shows. I'd say in the 50s. TMPIN1 is most likely the VRMs.

But I could be wrong. If I am, I will go and stand in a corner. smile.gif
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post #13 of 92
Why is the NB fluctuating so much is a really good question actually... since it only controls the HT-link to PCIe... specially under prime95 load, no reason to raise temps.
Edited by kevinf - 11/7/11 at 7:44am
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post #14 of 92
Quote:
The northbridge plays an important part in how far a computer can be overclocked, as its frequency is commonly used as a baseline for the CPU to establish its own operating frequency. This chip typically gets hotter as processor speed becomes faster, requiring more cooling.

Just off Wikipedia.
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post #15 of 92
Quote:
Originally Posted by Nephrahim;15604318 
Just off Wikipedia.

Trying to make you think here, how does that matter if the CPU does not change frequency substantially from idle to load?
post #16 of 92
Quote:
Originally Posted by Nephrahim;15604318 
Just off Wikipedia.

remember that the IMC is now inside the CPU-Northbridge and the 990xa/fx don't have an integrated graphics, so the NB-Chipset actually does very little.

Wikipedia =/= Credibility, things change.
Quote:
Originally Posted by TitusPrime;15604755 
Trying to make you think here, how does that matter if the CPU does not change frequency substantially from idle to load?

very true
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post #17 of 92
Thread Starter 
Quote:
Originally Posted by kzone75;15603862 
TMPIN2 must be faulty.. Start up the computer and the temps are ~50C. Keep HWMonitor open, put the pc in hibernation and wake it up. Temps will then show mid 30s at idle. wink.gif Well it actually follows the core temps at all times.
TMPIN0 is not moving, so that makes me think it's the NB or system temp. No reason for the NB to fluctuate much. But it's warmer than what the HWm shows. I'd say in the 50s. TMPIN1 is most likely the VRMs.

But I could be wrong. If I am, I will go and stand in a corner. smile.gif
Quote:
Originally Posted by kevinf;15604204 
Why is the NB fluctuating so much is a really good question actually... since it only controls the HT-link to PCIe... specially under prime95 load, no reason to raise temps.

Here are your sensors and locations.

TMPIN0 = Sytem (Motherboard) Temp
TMPIN1 = CPU Temp
TMPIN2 = Northbridge Temp

TMPIN0 will hold a stead temp from load to idle.
TMPIN1 will be a few c higher than your CPU cores, this is the Socket temp.
TMIIN2 will be about the same from Idle to load, hibernate or sleep will cause the NB temp to go down. This is because when the PC is in hibernate there is nothing for the to "think" about.


The Gigabyte 990FXA-UD3 has not sensor for the VRAMS.
Your temps are fine. Thank you for posting!
Edited by KhaoticKomputing - 11/7/11 at 12:48pm
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post #18 of 92
I too had the same problem...this past saturday I happened to touch the NB heatsink and it was freaking hot!!! So I decided to take out the mobo and replace the TIM on the NB and SB heatsinks. I'll check to see what kinda temps i'm getting on the hardware monitor since I wasn't sure which one was the NB temp.
post #19 of 92
Here You go.. proof.gif
post #20 of 92
Thread Starter 
Quote:
Originally Posted by Valnjes;15610061 
Here You go.. proof.gif

If i'm reading your pics and hardware monitor programs right, you have the coolest running NB chipest so far.
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