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Twin Turbo Pro on 6870 Review (VR001 Parts)

post #1 of 15
Thread Starter 
I decided to take the plunge and finally install my old broken 5850's Twin Turbo Pro. I didnt feel especially safe doing this, using the VR001 kit aswell(thermal adhesive scares me), but you will see that i need not have worried.

Please dont be too harsh, this is my first review, also I apologize for the terrible images, only camera i have is my phones crappy "2mp"(it so isnt).
Alright, time to have a cone and get writing.

Preparation and Installation

pic0121011.jpg

Got all the usual stuff together. Preparation is key for a smooth ride.

pic0121012.jpg

Our victim.

First thing i did was have a good look at where things were going. The only problem I encountered jumped out at me right away. The VRegs on the 6870 are wedged between some capacitors and what I think are chokes, leaving very little room. Adding to the tight situation, is the fact that the small parts between each voltage regulator actually rise higher than the chips themselves, so two long ramsinks are no longer going to work in this position.

radeonhd6870pcb.jpg

I ended up cutting these 5 fin skinny ramsinks into 3 fin sinks that would fit.

pic0121018.jpg
pic0121019.jpg

These were the only sinks that I glued down using the VR001 thermal adhesive, a sort of trial, as the VRegs run cool on the card anyway. Figured I wouldn't do too much damage if the performance was crap.

The ram sinks I didn't want to glue down just yet, so I used the original sinks from the Twin Turbo Pro kit. These secured by means of thermal tape.
The thermal tape was however covered in dust and hair, not a very sticky situation. Turns out if you clean that all off with generous amounts of isopropyl, and let it evaporate, the tape becomes incredibly sticky again.
Would have taken pics but my phone inadvertently decided to run out of battery at this point, so i put it on charge.

So with all those stuck down, the rest was an uneventful cakewalk, secured the main cooler to the core, and left it for an hour while the thermal adhesive cured on the VRegs.

new1ex.jpg

Boom, installed, definitely takes up a few slots.

pic0122025.jpg

Testing

System is sig, everything currently at stock.

Now I was not very hopeful with the build once I got it done. I had tried the Twin Turbo Pros thermal tape sinks on my 5850 before and had far less than ideal results from memory and VReg temperatures.

When Trixxx sidebar started, I shat bricks, forreal.

Not one temperature in the list was over 36c, down from a standard idle temp of core at 45c, to as much as 60c on a hot day. Usually sat at about 50c. Bear in mind, today is cooler than what we have been having recently.
Was 15c today, while we are fairly regularly getting 25-30c+.
The results are however, definitely not relying on ambient temps for the improvements.

For testing I went with Bad Company 2, high end graphics, played currently, good real world results. Graphics were set at max, no vsync, 1920x1080. Stock fan was 40%, Twin Turbo 100%.

resultstable.png

See what I mean? Dont take this as a guarantee that the Twin Turbo Pro is amazing, but I think we can guarantee that thermal adhesive works a charm and should not be considered scary. Its just a big decision to permanently stick things to your video cards, so choose wisely.

Heres some useless furmark/kombustor shots, seeing as everybody uses it.

kombustorrun.jpg
superfurmarkrun.jpg

Furmark was "xtreme burning mode" with displacement mapping enabled. Im not sure what peoples settings are usually. Kombustor was at stock.

Conclusion

I am amazed with the performance of the Twin Turbo Pro, not really with the core temperatures(i knew they would be good), but with the memory sinks. The thermal tape, with patience and a good amount of pressure to make sure they are stuck down well, works great. The decrease in heat at load on the memory was over 30C. Insane. Im not sure if my stock cooler was flawed in some way, as the improvements across the board are beyond my expectations.

The core could have been cooler, will probably drop a bit more as the AS5 cures, might have just been the way I seated it.
This is just nitpicking though, the temperatures are great, meaning I can actually try some overclocking now.
Edited by Eyelegal - 1/21/11 at 5:50am
    
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post #2 of 15
Great review.... Thanks to you I think I am going to be getting one of these bad boys!
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post #3 of 15
Thread Starter 
Quote:
Originally Posted by killeraxemannic;12090876 
Great review.... Thanks to you I think I am going to be getting one of these bad boys!

For your 5850? I recommend getting the VR001 kit with it, VRegs on the 5850 run excessively hot, thermal adhesive should be much better than tape at keeping them chilly.
And I cant stress how important good cleaning of chips and tons of pressure to stick them down is, did it wrong on a 5850 before and had terribad results.
    
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post #4 of 15
Quote:
Originally Posted by Eyelegal;12087958 


Boom, installed, definitely takes up a few slots.

pic0122025.jpg

Why does it look in this picture that you still have the RAM heatsink template attached?

pic0122025.jpg
Edited by smash_mouth01 - 1/21/11 at 11:18pm
post #5 of 15
Thread Starter 
You mean the bit of sticky card that came with it to prevent bridging?
I assumed it was meant to stay there, once stuck down it felt and looked fairly permanent.

Edit - Hah yeah doesnt look like its meant to stay there(not even in the right place to begin with xD), wont be hurting anything anyway though.
Edited by Eyelegal - 1/22/11 at 1:26am
    
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post #6 of 15
yeah not to worry.

I have a query though, it says that the Accelero TT pro is compatible with the 6870 on the arctic cooling website. So was cutting the fins a necessity?
Edited by smash_mouth01 - 1/23/11 at 10:23am
post #7 of 15
Thread Starter 
Nah it fits fine, used to have it on a 5850.
    
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post #8 of 15
I wonder if this cooler

http://www.arctic.ac/en/p/cooling/vga/23/accelero-l2-pro.html

would be as good as the stock one except quieter. Im not sure I want to drop 60 bux on a cooler just to make it quieter not cooler. If it will be as good as stock I might go with this one instead.
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post #9 of 15
Well I can rule out the XFX 6870 Twin Fan as being compatible. It would fit perfect. But The dam fan header on the card is only 2 pin not 4 pin. So its not a 100% complete reference card. I'll return the XFX twin fan card, and pick up the regular xfx 6870 card.....
post #10 of 15
Did you have to cut the sinks falcon? Or did you buy VR01 set?
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