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[Official] AMD Radeon HD 7950/7970/7990 Owners Thread - Page 769

post #7681 of 38704
@ sockpirate, why do you have 2 7970's for just 1 1080p screen? What game could you not max out? Just curious?
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Red X9
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post #7682 of 38704

 

Quote:
Originally Posted by Levesque View Post

IMHO, there is something wrong with the Asus DCT2 design.

With stock air cooler, 1025/1400 was crashing in 3 seconds. LOL!

Installed a 60$ EK unviversal waterblock on it, some thermal pads on the back side directly on the VRMs, and now at stock voltage I can do 1175/1600 without any problems. Just ran Furmark 30 minutes and 3D Mark 11 10X in a row, played BF3 2 hours, and everything is rock-stable.

Temp is 33 celsius MAX on my chip at stock voltage 1175/1600 after 30 minutes of Furmark.

Asus. There is something wrong with your air cooler design. frown.gif

The ''mammoth tank'' is working much better! smile.gif

6877553752_5f03fd97ff_b.jpg


You just confirm my suspicion.

 

Now let's see the OVP/OCP control into RIVE and breaking few records with watercooling  biggrin.gif

 

 

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post #7683 of 38704
Quote:
Originally Posted by Daffie82 View Post

watercooling is a different story.
But for air I would not add more than 125mv. Specially with those temps you are getting.

Okay:( gonna be then at 1.1Ghz @ 1.1V.


Quote:
Originally Posted by Hambone07si View Post

On 1 monitor, a 7970 at only 1100/1500 should max BF3 out. With 1125/1500 on 2 cards I can run ultra on 3 screens. 80c is fine but I wouldn't let it get much warmer, turn the fan up some.

I have 7950. And with 1175 core and 1650mem i rearly see a dip below 60 with everything on ultra.



Overall i don't think the heat would kill the chip. I'm just afraid that the voltage would. But then again i see ppl having 1.25 Volts on a same card. Thats really confusing=\

I'd like to get as much as I can from this card. I have 2 fans from side panel blowing direct on my card, I even took the plastic off my card so its only the chunk of aluminium and a fan on there. But still goes up to 80°C. I have set up a fan profile to 80C=>60% fan. Gonna try now with 80% but thats kinda loud..=\
post #7684 of 38704
Quote:
Originally Posted by Ken1649 View Post




You just confirm my suspicion.

Now let's see the OVP/OCP control into RIVE and breaking few records with watercooling  biggrin.gif


That card is in my kids computer, with a Maximus. smile.gif

With my Rampage, I have 4 vanilla Asus 7970. smile.gif
    
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post #7685 of 38704
Quote:
Originally Posted by mltms View Post

Can someone explain to me what is the use for powertone in CCC i am it 1140/1550 volt 1.218. If i use the powertune up to 20% can i go for more higer clock it the same volt 1.218

rolleyes.gif
post #7686 of 38704
Quote:
Originally Posted by Andrazh View Post

Okay:( gonna be then at 1.1Ghz @ 1.1V.
I have 7950. And with 1175 core and 1650mem i rearly see a dip below 60 with everything on ultra.
Overall i don't think the heat would kill the chip. I'm just afraid that the voltage would. But then again i see ppl having 1.25 Volts on a same card. Thats really confusing=\
I'd like to get as much as I can from this card. I have 2 fans from side panel blowing direct on my card, I even took the plastic off my card so its only the chunk of aluminium and a fan on there. But still goes up to 80°C. I have set up a fan profile to 80C=>60% fan. Gonna try now with 80% but thats kinda loud..=\

Care to show what plastic you took off? That usually channels the air THROUGH the heatsink. The cooler the chip stays, the more stable the overclock stays. you could have a overclock run all day at 70c, but if it hits 80c, it could fail. Just a tip bud.
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Red X9
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post #7687 of 38704
Quote:
Originally Posted by tsm106 View Post

Artifacts come in two flavors. There's the typical blocks, lines, digital noise looking type that is usually memory. Then there are the more rare organic looking colors, flashes or splotches of light that are core related. It reads like you are one, at your cores limit of stability at 1250 and two you might be in error correction with your memory at 1700. What do your artifacts look like? The ideal way is to test core then memory, working your way up till you find your stable maximum clock. How did you arrive at the 1700 on the memory btw?

I just saw someone post 1225/1700 @ 1.25, copied the exact numbers and it worked, lol. I get the ones that seem to be memory related. This is odd, though. Why would it be fine @ 1225 but not 1250? Arent the core and memory independant
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post #7688 of 38704
Quote:
Originally Posted by Twistacles View Post

I just saw someone post 1225/1700 @ 1.25, copied the exact numbers and it worked, lol. I get the ones that seem to be memory related. This is odd, though. Why would it be fine @ 1225 but not 1250? Arent the core and memory independant

You should always test your chip as it's own beast. I would never copy someone else values and try on your own hardware. That could end up in a "pop" if you did that with certain hardware.
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Red X9
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post #7689 of 38704
ASUS OC Test Bios with working Clockstates:

2D: 300/150MHz 0,8V
Low3D/UVD: 501/1375MHz 0,95V
3D: 925/1375MHz
urn2mhg5dqvy.png

Asus.HD7970.3072.120104.zip 41k .zip file
post #7690 of 38704
Quote:
Originally Posted by WiL11o6 View Post

Yes, everyone here is very helpful.
I've had problems with mine and everyone was very helpful in trying to help and very responsive. Though, following this thread and other threads, I was sure you were going to get a 680 instead.

Not happy with the locked down voltage control, plus the Lightnings were just too sweet to pass up! redface.gif
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