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[Official] AMD R9 390/390X Owners Club - Page 1000

post #9991 of 11958
Quote:
Originally Posted by snurds View Post

I'm using the Crimson curve.

Do you think it's unusual to use a 390x in case with only one intake and one exhaust fan? Or is that typical?

I think I'm just going to pop the side of my case off when I play games at 100% GPU load (which is not all that common, I play a lot of old games). But I'm still a bit curious about what the underlying cause of my ventilation problem is. Because my case setup seems pretty normal.

 

Depending on your case size that's a little light on the airflow. I mean, the configuration is fine in itself and that can work just fine, but depending on the case I'm usually going for more airflow than that.

 

As an example on my main gamer with 390 crossfire, I've got rad intake topside, two side intake, two front intake, and two exhaust aft. It's a bit overkill and took some modding. On a rig in a Corsair 760T, I've got two intake front, two intake on the side, an exhaust aft, and two exhaust topside. Again, overkill perhaps, but Hawaii runs warm (as does Fermi in the 760T) and I like to keep things nice and cool.

     
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post #9992 of 11958
Quote:
Originally Posted by snurds View Post

I'm using the Crimson curve.

Do you think it's unusual to use a 390x in case with only one intake and one exhaust fan? Or is that typical?

I think I'm just going to pop the side of my case off when I play games at 100% GPU load (which is not all that common, I play a lot of old games). But I'm still a bit curious about what the underlying cause of my ventilation problem is. Because my case setup seems pretty normal.

Ive got a dozen fans but im running water cooled. So 8 of my fan are for the rads alone haha.

One intake is a bit light, i did look up your case and it does have 2 intake fan spots. If you bought used my guess is hes using the fans for something else. You can always buy two decent fans, install em and remove one or both HDD cages to get better flow and need less static pressure.

The crimson curve is also pretty weak sauce. If you can install afterburner and monitor fan % it might be staying below 40% or something. You can try to set it manually and leave it at like 50-60% or wtv you deem is acceptable for noise. It will stay at a single speed. If your temps drop even more then thats why.

Usually running a case open and seeing a huge drop means you don't have either enough exhaust/intake. Ask @doyll he should be able to help you with that, or check out his threads/stickies. Guy is the case/fan guru.
    
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post #9993 of 11958
Quote:
Originally Posted by snurds View Post

Thanks for the replies about my thermal problem.

First of all there is an intake fan at the bottom, I didn't notice it before.

Anyway I gave my case some more breathing room and it looked like the temperature was going to stabilize around 91 degrees. I didn't actually wait long enough to confirm that because it didn't seem like a desirable result.

Then I tried removing the side of my case and I got stabilization at 79 degrees. That's a good result I think but not sure if that's a good solution...seems like it will lead to problems with dust?

But anyway I think it's confirmed that my basic problem is ventilation. I will look into moving things around in my case.


For anyone who has made it this far, what would you say is a good temperature target for a XFX 390x under full load but not overclocked?
Like @bluej511 said, you have an airflow issue.
But it's 'don't have either enough exhaust/intake'. We can't have one without the other. / what goes in must come out / what comes out must go in / they both have to flow the same amount of air and are limited by whichever is the lessor of the two.
I suggest you look at "Ways to Better Cooling" link in my sig. 1st post is index, click on topics to see them. Start with 5th one to get a basic at how case airflow works. This should give you enough knowledge to have a basic idea of what is going on. Ask if you want more, because that is just the tip of the iceberg.
post #9994 of 11958
So like I said before my 390 Nitro is whining like crazy and I have some issues with FreeSync enabled (I don't know yet if this is GPU or monitor related, I will get other AMD card soon to check that out), so I am returning the card, but it was able to get through 3D Mark tests without issue, so I will post results (TriXX, Fire Strike and GPU-Z)

Stock

Maximum stable core OC without touching memory and with +100mv overvoltage

(Card is not crashing at higher core frequencies like 1120 or so but gives visual artifacts)

Maximum stable core and memory OC

As for temps, all tests are made with fixed fan speed at 30% (1500 RPM) because I find that speed maximum acceptable in terms of noise. Case is Fractal Design Define R5, with slow RPM 140mm Silentum PC Sigma Pro 3-pin fans, running at 5V (~400 RPM). There are 5 of them, 2x front intake, bottom intake, side panel intake and rear exhaust.

As for noise of Nitro fans(keep in mind that I am playing on speakers, not headset):
-minimal speed when fans start to spin is it seems 25% (1200 RPM) and at this speed GPU fan noise is slightly exceeding case fans noise, so Nitro fans noise at 25% (1200 RPM) fan speed is of equivalent to mid-range fan running at 500-600 RPM, so rather typical speed for 4-pin PWM fans that can be found on CPU coolers and etc while running at 5V
-I found maximum acceptable noise level to be at 30% (1500 RPM) fan speed. This is equivalent of a mid-range case fan noise running at 7V (800-900 RPM).

Overall:
-card is very well optimized for stock operation. At stock speeds, maximum temp with fixed 30% fan speed was as low as 73C, which is great score considering huge power consumption and low fan speed. You can easily get away with minimal fan speed at 25% and be able to keep card below/around 80C with little noise which is great score for a card with this kind of power consumption and heat generation. VRM temperatures are in check with only 75C.
-card is not very suitable for overclocking. Potential is very little as well as performance gains, while power consumption and heat goes sky high and you cannot cool the card quietly anymore.
-coil whine is very big which makes the card not usable under gaming load, but this is quite random thing and is present for any GPU on the market at some degree, so I wouldn't blame this particular Sapphire model. Industry just cannot deal with this issue, or they don't want to/don't care
-card is very solidly built
-card is not as huge as people say, card is just long, but no wide or thick, not super heavy also
Edited by Krzych04650 - 7/17/16 at 7:25am
post #9995 of 11958
Quote:
Originally Posted by mus1mus View Post

You will need to fall in line for the RX 480. biggrin.gif

so the rx 480 is beter ? in some benchmarks its neck on neck but some favor the 390x some the 480 >< its confusing as hell
post #9996 of 11958
I'm thinking about adding another R9 390 to my rig, you guys think its worth it and with my PSU support two? Theres a few games I get some lag in every now and then playing maxed out. Some reason I don't have the ability to lower graphics settings... wheee.gif lol
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post #9997 of 11958
Quote:
Originally Posted by ZoePancakes View Post

so the rx 480 is beter ? in some benchmarks its neck on neck but some favor the 390x some the 480 >< its confusing as hell

IMO, 390X = 480. But one thing that is very appealling about the 480 is Power Consumption. 2nd is cost.

If you already have a 390/X, just go crossfire. If starting from scratch, go for the 480.

I declined the store offer for a "priority list" for the 480 when stocks arrive. That is after returning the 390. I just went for a full refund and keep the money til used prices lower further. biggrin.gif
Quote:
Originally Posted by ThatGuy16 View Post

I'm thinking about adding another R9 390 to my rig, you guys think its worth it and with my PSU support two? Theres a few games I get some lag in every now and then playing maxed out. Some reason I don't have the ability to lower graphics settings... wheee.gif lol

Mention the PSU model and capacity for guys on mobile. thumb.gif

You might need 1000 W or more when you overclock.
post #9998 of 11958
:
Quote:
Originally Posted by mus1mus View Post

IMO, 390X = 480. But one thing that is very appealling about the 480 is Power Consumption. 2nd is cost.

If you already have a 390/X, just go crossfire. If starting from scratch, go for the 480.

I declined the store offer for a "priority list" for the 480 when stocks arrive. That is after returning the 390. I just went for a full refund and keep the money til used prices lower further. biggrin.gif
Mention the PSU model and capacity for guys on mobile. thumb.gif

You might need 1000 W or more when you overclock.

EVGA G2 750w, the one made by seasonic... probably not big enough I'm overclocked with a 4690k and watercooling lol.
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post #9999 of 11958
Interesting little experiment I did/am doing today.

I've been having some flickering while on low power states of my modded bios. So I've used afterburner to set my clock/memory/voltage to each power state one at a time.

P3 is 840 mhz at 1050 mV with 1500 vram. Probably way lower clock/higher voltage than is needed, but I ran with it.

Scored 2355 on valley (extreme hd preset). Firestrike 10604 score, though strangely my physics score dropped also and I couldn't raise it. http://www.3dmark.com/3dm/13363305?

Max power usage as registered by the VRMS (power in, in hwinfo) is 106+24 watts (106 watts on the core vrms, 24 on the vram). Temperatures were absurdly low.

Now on to P2, which I assume is the offender with its 150 mhz vram.
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post #10000 of 11958
Quote:
Originally Posted by ThatGuy16 View Post

:
EVGA G2 750w, the one made by seasonic... probably not big enough I'm overclocked with a 4690k and watercooling lol.

Definitely not enough. thumb.gif

FYI, 2 290Xs and an overclocked 5930K will OCP trip my 1250 once I push things. wink.gif
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