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[Official] 7870 Tahiti LE (XT) Owners Club - Page 431

post #4301 of 5238
New problem.

When I switch the 144Hz mode into the CCC and play a Youtube video, it's crashing. But in 120Hz, everything work fine....
post #4302 of 5238
Quote:
Originally Posted by tp4tissue View Post

OR

I've found the problem with ALL stock heatsinks is that it blows hot air ONTO the card.. Freakin stupid...righ..??

This should be how ALL cards come stock... with a 120mm tower that blows outward away from the card


nice stuff!

I was wondering though do you have a way of supporting that sink so your card doesn't bend over time? I'd assume if you have the tower upright so the sink would be to the ground that a bit of weight on the board, not trying to down your rigging but just a thought that popped into my head. tongue.gif


I ghetto rigged a chopstick with some duct tape to sit on the bottom of my case and support the end of my video card to prevent any sagging ^^
     
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post #4303 of 5238
Quote:
Originally Posted by rekd0514 View Post

It used to be consistent between 975 and 925 and sometimes go to lower speeds. Now it seems to be going all over. I think the card might just be defective as it has exhibited other weird issues since I have had it. I bought it from Amazon so I could just see what they will do. I see they are no longer listed on there so maybe they will bump me up to a 7950. thumb.gif
Yep tried that too.

I just wanted to note this for anyone else having problems with their card such as this. I finally did the RMA on this card and got the replacement 7870 XT back. The card was definitely defective as this one has none of the issues my previous card had. I am also very glad the RMA process went smoothly as I did read some not so good stories about the Sapphire RMA process.

I am now able to set the card to +10 power limit and I get no fluctuations at all in the core. I can overclock the card to 1125 core and 1550 memory and it still only gets to 72C with the fan on auto at around 56% running MSI Kombustor. I hope this helps someone.
post #4304 of 5238
Quote:
Originally Posted by Sadmoto View Post

nice stuff!

I was wondering though do you have a way of supporting that sink so your card doesn't bend over time? I'd assume if you have the tower upright so the sink would be to the ground that a bit of weight on the board, not trying to down your rigging but just a thought that popped into my head. tongue.gif


I ghetto rigged a chopstick with some duct tape to sit on the bottom of my case and support the end of my video card to prevent any sagging ^^

The heatsink is pretty tall. the tip actually touches the very top of my PSU.. so it's perfectly supported.. All I had to do was cut that big hole in my p180 case.. wheee.gif
post #4305 of 5238
Not an XT Tahiti chip but still a 7870 that I'm super happy with! It's clocks about 45% faster than my old 6950 [not as many SPUs but with equal Memory and increased Clock, I've found a significant improvement in performance]

anyways, my Saphire 7870 OC [wish I knew to get the XT] I'm happy with it, I got my to clock at 1200mhz Core 1250 memory [can't push it any higher without errors or bsods] my mobo won't let me push the voltage any higher than 1.250 and at current clocks it uses about 1.200-230 ]

Either way, with the 7870 OC at 1200mhz and 1250 I'm getting 3D FX scores of about 5487 [Extreme mode] where as previously with my 6950 I was only scoring about 3500, my Cloud Gate scores increased from 13000 to 16000

Either way I'm rather happy with it! And wanted to share my JOY with others! I'm was shocked that the 7870 as small as it is, was so much faster than my giant 6950
post #4306 of 5238
Quote:
Originally Posted by RaXelliX View Post

Indeed you can go lower. Especially on the 74% ASIC card. My card is 73,1% and i ran 1.049mV @ 1000Mhz.
On the 64% card i think you can get away with 1.075mV @ 1000Mhz.


the 64% card would not do 1094 @ 1000 frown.gif

in BF4 there were missing textures and every once in awhile there was a white line that went across the screen..

so i ended up with 950, 950, 1094, 1150 on the 64% card..

the 74% card i was running 950, 950, 1094, 1094 but BF4 locked up a few times so i put it to the same as the 64% card. im not sure the lockup was the card tho.

when i first got these cards they were running over 100c in games..
i called XFX and they said that was normal and the cards were meant to run hot..
unfortunately with the cards running that hot, it made my room hot.. unacceptable.

since lowering the volts the cards just break 60c.
this is where these cards should be from the factory. i dont understand why they had the volts so high.. @ 1256.
 
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post #4307 of 5238
Quote:
Originally Posted by aaronsta1 View Post

the 64% card would not do 1094 @ 1000 frown.gif

in BF4 there were missing textures and every once in awhile there was a white line that went across the screen..

so i ended up with 950, 950, 1094, 1150 on the 64% card..

the 74% card i was running 950, 950, 1094, 1094 but BF4 locked up a few times so i put it to the same as the 64% card. im not sure the lockup was the card tho.

when i first got these cards they were running over 100c in games..
i called XFX and they said that was normal and the cards were meant to run hot..
unfortunately with the cards running that hot, it made my room hot.. unacceptable.

since lowering the volts the cards just break 60c.
this is where these cards should be from the factory. i dont understand why they had the volts so high.. @ 1256.

Yea most of these cards are not cooled well enough..

that's why I did my mod.. biggrin.gif

My card doesn't break 70C @ 1150 fully loaded.. and the fan is slightly above audible.
post #4308 of 5238
hi, I'm thinking of changing the vrm thermal pad since the vrms are kinda toasty... I found Phobya Thermal pad XT(only pads I found in my crap country ROMANIA!!!) 7W/mk but they come in 3 types... 120x20mm maximum bridgeable gap: 0.5mm/1mm/1.5mm what gap size do I need?
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post #4309 of 5238
Quote:
Originally Posted by thor2002ro View Post

hi, I'm thinking of changing the vrm thermal pad since the vrms are kinda toasty... I found Phobya Thermal pad XT(only pads I found in my crap country ROMANIA!!!) 7W/mk but they come in 3 types... 120x20mm maximum bridgeable gap: 0.5mm/1mm/1.5mm what gap size do I need?
On my PowerColor I only have to push some air on it and this made a big difference in temp.

This is what I do



I think is less work than change the thermal pad.
   
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post #4310 of 5238
Look at my pictures am ready pushing air into the card from the side... Useless... I can clock higher but vrm reaches 114 degrees and throttles
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