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[Official] 7870 Tahiti LE (XT) Owners Club - Page 37

post #361 of 5223
has anyone tried the dwood mod on these cards yet?

im currently thinking about the mod or get the artic accelero hybrid
post #362 of 5223
Quote:
Originally Posted by akromatic View Post

has anyone tried the dwood mod on these cards yet?

im currently thinking about the mod or get the artic accelero hybrid

Dude, the whole point of the 7870 myst//xt//le is performance / dollar...

Anything you ADD to the myst pretty much ruins that ratio..

If you "NEED" to add something to the myst to play the games you want to play,, THEN you really should've just bought a more powerful card...
post #363 of 5223
Quote:
Originally Posted by SonDa5 View Post

That GPU block is extremely expensive for just one time use.

I would go with a Swiftech MCW82 that has many adapters, you could probably get more life out of it.


I have a MCW80 that I was thinking about putting on the Myst but I'm undecided if the Myst card has stability problems.


This block looks like a great choice if it would fit the Myst.

http://www.performance-pcs.com/catalog/index.php?main_page=product_info&cPath=59_971_240_582&products_id=24645

The Hwbot is a universal block, so I don't plan to use it one time - it's good for many ATI models and some NVidia models.. In fact, I agree with Swifttech that full coverage blocks are not as efficient as a universal model. This particular model does specifically state that it works with Myst and 7870 XT.

There is a border around the Tahiti chip that requires some adjustment in the block install, so not all universal blocks will work with their standard install kit. I think there is a thread on this somewhere.

I am building a gpu waterblock loop for the future. Ultimately, I want to add (via crossfire) a 7950 or 7970 when the prices come down. Right now I want to examine universal block performance coupled with passive cooling of ram and vrm's. Really, I am looking for a chance to setup a flexible gpu cooling system. All the 7900s run pretty hot.
Edited by Bluesman - 4/2/13 at 6:16pm
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post #364 of 5223
Quote:
Originally Posted by MikeMike86 View Post

Every card is different some people will get higher clocks some people will get lower, it's just the luck of the draw for overclocking. For the fan profile it should automatically stay on what you set it to, maybe try selecting the "apply overclocking at system startup". Make sure it's set to startup with windows as well.
Re-read what he wrote. biggrin.gif

Edit: Ok here's what I came up with on my ULPS and Powerplay comparison one big picture is easier than typing it out. In the process I learned that changing the voltage actual does make the card more stabled when overclocking. I ran it stock and with an 1150mhz overclock, didn't mess with the memory. Warning: Picture! (Click to show)
photo ULPSandPowerplaycompare_zps2a9e6142.png

It's a huge increase while overclocked with ULPS and Powerplay disabled, all this benchmarking has now made my room about 10degrees warmer lol.

Ah, thanks for the tip.

I just scored a 2017 using 1600x900@8xAA FUllscreen with extreme tessellation and Ultra Quality (Crossfire)
I'm at 1190/1500 on both my cards.

Gonna go for a 1080p Normal tess 8xAA run see whats up.
Edited by ztkraptor - 4/2/13 at 6:35pm
post #365 of 5223
Quote:
Originally Posted by MikeMike86 View Post

Edit: Ok here's what I came up with on my ULPS and Powerplay comparison one big picture is easier than typing it out. In the process I learned that changing the voltage actual does make the card more stabled when overclocking. I ran it stock and with an 1150mhz overclock, didn't mess with the memory. Warning: Picture! (Click to show)
photo ULPSandPowerplaycompare_zps2a9e6142.png

It's a huge increase while overclocked with ULPS and Powerplay disabled, all this benchmarking has now made my room about 10degrees warmer lol.

I agree with this. At stock Memory clock and overclocked Core, the card runs better without Powerplay. With the .028 BIOS, you can just turn up the Power Limit and the card will maintain a solid core clock. It will look like Powerplay is off.

FYI, AB Beta 9 is out.
post #366 of 5223
Settings using AB Beta 9.

-
post #367 of 5223
Quote:
Originally Posted by Bluesman View Post

The Hwbot is a universal block, so I don't plan to use it one time - it's good for many ATI models and some NVidia models.. In fact, I agree with Swifttech that full coverage blocks are not as efficient as a universal model. This particular model does specifically state that it works with Myst and 7870 XT.

There is a border around the Tahiti chip that requires some adjustment in the block install, so not all universal blocks will work with their standard install kit. I think there is a thread on this somewhere.

I am building a gpu waterblock loop for the future. Ultimately, I want to add (via crossfire) a 7950 or 7970 when the prices come down. Right now I want to examine universal block performance coupled with passive cooling of ram and vrm's. Really, I am looking for a chance to setup a flexible gpu cooling system. All the 7900s run pretty hot.

MCW82 is comptible with many adapter kits that Swiftech sells to fit in on many different AMD/NVIDIA cards. Not sure if EK block has as much compatibility.

For $47.99 it seems like a much better buy.

http://www.sidewindercomputers.com/swmcungpuwa1.html

The HD7870 will work fine with the MCW82 and you don't need a shim.

The only universal block that is a perfect fit for HD79XX cards is the MCW82-7900 block.
Edited by SonDa5 - 4/2/13 at 7:06pm
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post #368 of 5223
1135/1500 and it's voltage locked god damn..
http://www.3dmark.com/3dm11/6316696 with 4,3 ghz cpu
post #369 of 5223
My crossfire set up is really unstable.. does your GPU usage like mine in CF?

My clock set to 1150/1500. Also, if you look at my GPU-Z, they're GPU1 and GPU2. Why do they read different values?



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post #370 of 5223
Quote:
Originally Posted by krazyatom View Post

My crossfire set up is really unstable.. does your GPU usage like mine in CF?

My clock set to 1150/1500. Also, if you look at my GPU-Z, they're GPU1 and GPU2. Why do they read different values?

Something is wrong. Totally uninstall AB, even the directory in program files, then re-install and reboot when it asks. You have no slider for power limit and you have a slider for shader clock.

You should use Beta 9 while you're at it.
Edited by KaBAM - 4/2/13 at 9:27pm
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