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7950 Vapor X Voltage Locked? - Page 80

post #791 of 1056
Quote:
Originally Posted by ryboto View Post

Well, BIOS 2 isn't locked. But BIOS 1 seems to be. So, technically they're correct.


I cant get my card to 1200mhz core for some weird reason. Currently at 1150mhz, and my other sapphire which i have crossfire is at 1150 mhz core.
post #792 of 1056
Should I keep hoping Newegg gets Vapor-X's in stock, or should I go to a different card? Twin Frozr 7950?
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post #793 of 1056
Quote:
Originally Posted by KingT View Post

I have just played BF3 for 1h and here's a result:

1050/1750MHz (1.075V) with STOCK fan profile (max @ 26% = 1635rpm) max GPU temp was 63C (Card was DEAD SILENT)

1050/1750MHz (1.075V) with my CUSTOM fan profile (max @ 36% = 2000rpm) max GPU temp was 56C (also considered very silent)


So when cooler works correctly then it's a great performer indeed and also very silent!!


CHEERS..

Both the DC2 and Vapor-X have dual 92mm fans, and I can say that at 1200RPM, its audible. At 1400rpm, its the loudest thing in my case. So your case must just be noisy, as 1600RPM can not be silent. Its not motor noise I hear either, its turbulence. So fan quality is mostly irrelevant. At 2000RPM, its quite loud. Not "turn that down!" loud, but distracting without headphones.

For comparison:


@1050/1.075v; 1700/1.600v & 1550RPM[38%] - Max 66c core & 78c on both VRMs. 40 min heaven run [Ran this first]
@1050/1.075v; 1700/1.600v & 1650RPM[39%] - Max 65c core & 76c on both VRMs. 20 min heaven run [Ran this after without stopping heaven]



113.375w Max VRM1 Draw
40.625w Max VRM2 Draw
Edited by Derpinheimer - 2/11/13 at 8:30pm
post #794 of 1056
I don't get why the Vapor-X cards are going out of stock so much on Newegg. Both the 7970 and 7950 are out of stock right now. Makes me wonder if they are doing or are going to do a new version or something?
post #795 of 1056
Quote:
Originally Posted by ryboto View Post

Should I keep hoping Newegg gets Vapor-X's in stock, or should I go to a different card? Twin Frozr 7950?

The TF3 would be pretty solid option as they seem to generally have better ASIC quality, for what peeps have reported here and in the 7000 owners thread. Maybe you should ask there if they can confirm this. Plus it looks very sexy.
post #796 of 1056
Quote:
Originally Posted by Derpinheimer View Post

Both the DC2 and Vapor-X have dual 92mm fans, and I can say that at 1200RPM, its audible. At 1400rpm, its the loudest thing in my case. So your case must just be noisy, as 1600RPM can not be silent. Its not motor noise I hear either, its turbulence. So fan quality is mostly irrelevant. At 2000RPM, its quite loud. Not "turn that down!" loud, but distracting without headphones.

For comparison:


@1050/1.075v; 1700/1.600v & 1550RPM[38%] - Max 66c core & 78c on both VRMs. 40 min heaven run [Ran this first]
@1050/1.075v; 1700/1.600v & 1650RPM[39%] - Max 65c core & 76c on both VRMs. 20 min heaven run [Ran this after without stopping heaven]

On DC2 cooler 1200rpm is minimum, cant go lower than that and it's dead silent.

1600rpm is also very silent and noise from DC2 cooler at that speed is negligible .

At 2000rpm (38% speed) you can hear DC2 fans but they're not considered loud.

DC2 is better cooler than VaporX, event both have 2x 92mm fans ,DC2 is still much more silent due design of the triple slot cooler and also due design of the fan.

As far as GPU air coolers go, DC2 is the absolute noise/performance king.

P.S.:

My card never goes beyond 57C in Heaven @ 1050/1750MHz (1.075V) and fan is @ 36% speed max.

VRM1/VRM2 = 58/61C

So DC2 cooler beats VaporX by 10C at same clock/voltage.. wink.gif


CHEERS..
Edited by KingT - 2/11/13 at 11:09pm
     
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post #797 of 1056
Anything below ~42% is below the noise of my radiator fans on my Vapor-X so I think the card is pretty damn silent.

Got 3x Gentle Typhoon AP-15 on my Radiator running at ~1700 RPM.
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post #798 of 1056
Quote:
Originally Posted by KingT View Post

DC2 is better cooler than VaporX, event both have 2x 92mm fans ,DC2 is still much more silent due design of the triple slot cooler and also due design of the fan.

As far as GPU air coolers go, DC2 is the absolute noise/performance king.

Well, I probably have to agree with you on that, even though I own a Vapor-X ;-).

Too bad the internet was full of negative reviews of the DirectCU2 when I was choosing my card.
Only later have I found out Asus resolved the reported problems with a V2 revision.

I also have the impresion that my Tahiti chip is particularilly power hungry which surely contributes to increased temperatures.
GPU-Z reports it pulling 140A when running Furmark @ 1100MHz core @ 1.087V which is quite a torture for the VRMs.
With 1175 @ 1.15V it pulls 180A.
post #799 of 1056
Should I get this card? or other HD7950s?
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post #800 of 1056
Quote:
Originally Posted by KingT View Post

On DC2 cooler 1200rpm is minimum, cant go lower than that and it's dead silent.

1600rpm is also very silent and noise from DC2 cooler at that speed is negligible .

At 2000rpm (38% speed) you can hear DC2 fans but they're not considered loud.

DC2 is better cooler than VaporX, event both have 2x 92mm fans ,DC2 is still much more silent due design of the triple slot cooler and also due design of the fan.

As far as GPU air coolers go, DC2 is the absolute noise/performance king.

P.S.:

My card never goes beyond 57C in Heaven @ 1050/1750MHz (1.075V) and fan is @ 36% speed max.

VRM1/VRM2 = 58/61C

So DC2 cooler beats VaporX by 10C at same clock/voltage.. wink.gif


CHEERS..

The fans on that card are almost certainly of a higher quality and appear thicker, but I just dont believe that they would be significantly quieter at the same RPMs. Theyre thicker, as to produce more static pressure, but at the same time.. the heatsink on the DC2 is quite small, so its redundant.

& that is the 7970 DC2. I think ASUS gimps the cooling on the weaker cards too, but that may only apply to the Dual Dissipation cards [The heatsink is smaller on the 7950 DD than the 7970 DD]

Also, to say 36% max speed is a bit deceptive. RPM comparison is more fair. And to say a 10c lead when comparing a huge RPM difference is more than deceptive, its flat out lying. Its ~2-3c lead on core, and 6-8c lead on VRM.

What is your heaven score when running this?

Tesselation Extreme
Shaders high
Anisotropy 16x
AA 8x
1680x1050

EDIT: A quick picture comparison shows that the 7970 DC2 has a considerably larger heatsink, more complete shroud, and a backplate versus the 7950. No internal pics for the 7950, but I'd expect that the PCB is of lower quality and the VRM heatsink smaller as well.
Edited by Derpinheimer - 2/12/13 at 12:25pm
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