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[Official] AMD Radeon HD 7950/7970/7990 Owners Thread - Page 1133

post #11321 of 38701
I was looking at getting 2 Nvidia cards and running them SLI... but I got sent over here by the Nvidia forum. tongue.gif

SOOOOOO... I am now interested in getting 2x 7970s.... I will be water cooling them... so can I please get some suggestions as to which cards you would recommend, that are the best for OC'ng and also that have a reference board for WC? smile.gif
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post #11322 of 38701
Quote:
Originally Posted by Derko1 View Post

I was looking at getting 2 Nvidia cards and running them SLI... but I got sent over here by the Nvidia forum. tongue.gif
SOOOOOO... I am now interested in getting 2x 7970s.... I will be water cooling them... so can I please get some suggestions as to which cards you would recommend, that are the best for OC'ng and also that have a reference board for WC? smile.gif

I have a sapphire and HIS card.

His will do 1300/1750 ASIC 70
Sapphire will do 1325/1650. ASIC 73

24/7 Stable clocks. Both reference. Using EK FC Blocks.
Temps mid to high 40s under heavy load.

Both of my cards have coil whine.
post #11323 of 38701
post #11324 of 38701

Two x MSI R7970 (reference)

 

 ASIC 77.8 and 78

 

Run them 24/7 at 1100/1600, but with max volts in MSI AB can benchmark at 1280/1740

 

Aquacomputer full cover blocks

Temps get up to hight 40s with ambient of 23

No coil whine

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post #11325 of 38701
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post #11326 of 38701

I have the first one. I think the main difference is the first one comes with mini DP to DVI adapter  and the second one is OC edition, but you can get a non-OC that looks the same at the OC edition.

http://uk.msi.com/product/vga/R7970-2PMD3GD5.html

 

 

 

Coil whine is a high pitch whining sound from the coils.

 

Asic is a quality measurement of the GPU silicon, you use GPU-Z to read it.

Not sure how accurate it is ( was more aimed at Nvidia cards) and I don't really pay much attention to it.


Edited by quakermaas - 5/31/12 at 7:22am
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post #11327 of 38701
Quote:
Originally Posted by quakermaas View Post

I have the first one. I think the main difference is the first one comes with mini DP to DVI adapter  and the second one is OC edition, but you can get a non-OC that looks the same at the OC edition.
http://uk.msi.com/product/vga/R7970-2PMD3GD5.html



Coil whine is a high pitch whining sound from the coils.

Asic is a quality measurement of the GPU silicon, you use GPU-Z to read it.
Not sure how accurate it is ( was more aimed at Nvidia cards) and I don't really pay much attention to it.

Great! I'll go with the first one... I'm sure the second is simply to avoid going through the trouble of OC'ng you self. Which I have no problems doing. Are you happy with the waterblock you are using?
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post #11328 of 38701
Quote:
Originally Posted by m3t4lh34d View Post

mY1nO.png
That's what I achieved with my 3 7970s @ 1250/1700. Ignore the "Your system is low compared to others" message, since I scored less than that on a previous run and it said my system was "Equal or Better", so its obviously flawed.

This is a bit low. I don't have a pic with me but my:3 lightnings at stock (1070/1400) and 3960x at 4.7 get about 22000-22400
     
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post #11329 of 38701
Quote:
Originally Posted by afadzil21 View Post

I'm just so happy to see someone with good DCU II cards. I thought you said you had three right? Benches only for 1 card?

My problems with the Asus DCII Cards are:

-3 Slots
-Heavy / Card Flex
-Cooling design is not optimized for being 3 slots.



If you look at it, the entire 3rd slot vent is still blocked by the shroud, the fans sit half way into slot 2 and halfway into slot 3, there is now airflow through that vent, except for maybe turbulence off the fan blades its really a 2.5 slot design,

The DVI ports block the entire 2nd slot, and any airflow coming off the heat sink, is trapped because the heat sink shroud/cover is closed at the other end, leaving only the 2 small vents on the top of the card next to the Xfire connectors and PCIe Power connectors, or down onto your mainboard.. they should have either ditched the DVI Ports, or stacked them so one is in slot 2 and one in slot 3 which would have allowed them to use 65% of slot 2 to make a high air flow exhaust, and that lil bit of space in slot 3 as well.

Having said that I like the back plate and the heat sink that mounts to the backplate;
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post #11330 of 38701
Quote:
Originally Posted by SkateZilla View Post

My problems with the Asus DCII Cards are:
-3 Slots
-Heavy / Card Flex
-Cooling design is not optimized for being 3 slots.
If you look at it, the entire 3rd slot vent is still blocked by the shroud, the fans sit half way into slot 2 and halfway into slot 3, there is now airflow through that vent, except for maybe turbulence off the fan blades its really a 2.5 slot design,
The DVI ports block the entire 2nd slot, and any airflow coming off the heat sink, is trapped because the heat sink shroud/cover is closed at the other end, leaving only the 2 small vents on the top of the card next to the Xfire connectors and PCIe Power connectors, or down onto your mainboard.. they should have either ditched the DVI Ports, or stacked them so one is in slot 2 and one in slot 3 which would have allowed them to use 65% of slot 2 to make a high air flow exhaust, and that lil bit of space in slot 3 as well.
Having said that I like the back plate and the heat sink that mounts to the backplate;

If you are going to spend so much on 3 cards, watercooling has to become a consideration. You can get away with 2 on most boards as room between cards. Temps rise but custom fan profiles can help.
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