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Mad Kat

macrumors regular
Original poster
Dec 11, 2019
129
7
Italia
Hello lads,
I have recently installed on my Mac Pro 5.1 mid 2010, a Shappire Rx 580 8gb gpu, but I have a problem with the fans always running and high temperatures 73 degrees 75 even 79

I didn't have this problem with the ati 5770 even though the video resolution was lower with the 32 inch 3840x2160 monitor
With the Shappire rx 580 I'm taking full advantage of the resolution
I would not want it to be the HDMI cable instead of the Dpi



How can I solve?

A thousand thanks
 

tsialex

Contributor
Jun 13, 2016
13,455
13,601
High temperatures where exactly? 79ºC for the northbridge is way over, should not go over 76º ever, but not for the CPU.

Btw, did you fully cleaned your Mac Pro internals recently? Checked the northbridge heatsink push-pins? Re-pasted the heatsink/CPU? Checked the RTC battery voltage?

It's a 10 to 12 years old Mac, you have to do preventive maintenance.
 

h9826790

macrumors P6
Apr 3, 2014
16,656
8,587
Hong Kong
I think he mean the GPU temperature.

Many Sapphire RX580 actually use 75C as the target temperature
1653594526626.png

Which means, run at 75C is absolutely normal. In fact, the GPU trying to stay at that temperature (as long as the work load is high enough to do that).

And short fluctuate to 79C is also normal.

From memory, for Sapphire RX580, the fans should stay at zero RPM when the GPU temperature below 60C. Once above that, the fans will spin up, but stay at very low RPM, and let the GPU keep warming up to 75C. Then the fans will spin up more and more if the GPU temperature tends to go above 75C. Once the fans reach the max RPM, GPU temperature then can go up to 85C, then thermal throttling occur and let the GPU stay at 85C.

Anyway, as long as the GPU can stay at around 75C, there is nothing to worry about. AFAIK, stay at a relatively constant temperature can reduce thermal cycle waring. It's better to let it stay at 75C, but not keep fluctuating between 35C and 75C (of course, stay at 35C is even better, but that's not a realistic target).
 
Last edited:

MarkC426

macrumors 68040
May 14, 2008
3,698
2,097
UK
Hello lads,
I have recently installed on my Mac Pro 5.1 mid 2010, a Shappire Rx 580 8gb gpu, but I have a problem with the fans always running and high temperatures 73 degrees 75 even 79
The fans on the GPU should definitely not be running all the time.
They will only spin up when under load.
 

Eddu Vaz

macrumors newbie
Sep 29, 2020
12
0
instal the iStat, u can control better what exactly is too hot, even in single trail, when export some fcpx intro, or some huge file in ps ( 2gb ) I creat an profile with some temps, and the stat control my fans, never be near the limit, and the GPU never get too hot too
 

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Mad Kat

macrumors regular
Original poster
Dec 11, 2019
129
7
Italia
Solved problem that I did not see more videos, with new 8k displayport cable vesa certification, reset default resolution (3840x2160) and made osx check for updates and everything is updated.



But the problem of fans + high temperatures remains .... it happens to me especially when I visit websites (like here on the forum) and scroll quickly through the pages .. bho I don't know what to do
 

Mad Kat

macrumors regular
Original poster
Dec 11, 2019
129
7
Italia
Thank you guys
Istat costs € 9.99 .. once it was free
I have Mac fan control and Tg pro alternatives
When I browse 8k photo example on google images, it starts to get up in rpm and temperature, I don't know if that's the case for you too

I thought that I would not have undermined the gpu for such use
 

avro707

macrumors 68020
Dec 13, 2010
2,263
1,654
Solved problem that I did not see more videos, with new 8k displayport cable vesa certification, reset default resolution (3840x2160) and made osx check for updates and everything is updated.



But the problem of fans + high temperatures remains .... it happens to me especially when I visit websites (like here on the forum) and scroll quickly through the pages .. bho I don't know what to do
Scrolling through websites quickly shouldn't cause any dramas with the Sapphire RX580 - I had one running with a 5K screen at 5120x2880 and websites wouldn't bother it.

Even watching 4K video from Youtube did pretty much nothing. I would have to run Zwift at its maximum detail then the RX580 warms up to 75ºC and the fans spin up.
 

prefuse07

Suspended
Jan 27, 2020
895
1,073
San Francisco, CA
I'm sorry, but you can't just say "help, my fans are going nuts!" without giving us more details, man...

What OS are you using?
Are you using OpenCore? If so -- Do you have Lilu and WEG enabled? What about other boot args?

This is a wierd issue, but until we know answers to the above, I don't know how else we can be of assistance
 

Mad Kat

macrumors regular
Original poster
Dec 11, 2019
129
7
Italia
I am using Osx 10.14.6, and I am not using opencore .. at least I don't think so (I don't know what it is)
 

Mad Kat

macrumors regular
Original poster
Dec 11, 2019
129
7
Italia
I confirm it says only 144.0.0.0
however, since I changed the dpi cable it seems to be better, first he did it again while I was scrolling quickly in a whattupp chat where he had to reload previous conversations and photos.

the boost fans A and B were at 1350-1400 but the fan noise I am more than sure came from the gpu that the temperature had risen up to 78 ° and then returned to 58-60

It makes me strange that it is not stable with the temepratura ... I would not want that being in slot 1 does not remain cool underneath, since it almost leans against houses

Maybe I should take it apart and change thermal paste with artic mx 4 that I have advanced
 

MarkC426

macrumors 68040
May 14, 2008
3,698
2,097
UK
When I browse 8k photo example on google images, it starts to get up in rpm and temperature, I don't know if that's the case for you too
This is probably normal, as the GPU having to work harder.
Next time you view 8k images, have a look at iStat readout and see if the GPU has any activity.
 

Mad Kat

macrumors regular
Original poster
Dec 11, 2019
129
7
Italia
now i'm browsing in google 8k images and the gpu temperature remains more or less between 65 - 75 but the fans have started at a good rate .. shame not to have the opportunity to view gpu fan rpm to understand better
 

Mad Kat

macrumors regular
Original poster
Dec 11, 2019
129
7
Italia
Resolved ...
Disassembled, it was clogged with dust, I blew everything, and so much so that I replaced the thermal paste .. now encrusted, with mx4 artic
The only flaw is the thermal pads, some of which are broken.
I buy them, replace everything and put the thermal paste again
Temperatures the maximum peak 53 ° from the first test instead of 79 ° ...!
Impressive how dirt and poor thermal paste have a negative effect ..

Thank you so much to all of you
 
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