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7950 Vapor X + two 8 pin connectors + mem voltage + VRM cooling


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#1 Stealth3si

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Posted 10 March 2013 - 03:36 PM

For those who have recently have bought the Sapphire HD 7950 Vapor X with two 8 pin connectors, I want to get an idea of their VRM cooling capabilities.
 
I heard mixed reviews about VRM cooling and it seems it has to do with either the cooler/VRM design, and/or the low stock memory voltage 1.5v. Supposedly there should be a new vBios that changes the memory voltage to 1.6v for better vrm cooling but that is questionable.
 
Do you know what are the stock memory voltages on them? is it 1.5v or 1.6v?
 
If not, what are your mem clocks and VRM temps?
 
Also, were you able to change the GPU voltage using Trixx 4.6.0 in Bios1? Because I heard the card has LL to lock the voltage and the new Trixx can disable that.

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#2 ccokeman

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Posted 10 March 2013 - 05:37 PM

I never measured the voltages for the memory on these cards. Depending on the version of TRIXX or Afterburner you may see some voltage locks. 


Processor Intel Core I7 4690X  4.3Ghz
Memory G.Skill RipJaws  32GB 2400Mhz
Motherboard ASUS Rampage IV BE
Graphics  GTX TitanX x2
Power Corsair AX 1200,
Monitor ASUS PQ321Q
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#3 Stealth3si

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Posted 10 March 2013 - 06:04 PM

Edit: I was just doing some research and I think I might go with the Sapphire Dual X HD 7950 boost rev 3 instead. Vapor-X seems to have dubious issues surrounding voltage locks and VRM components/heating/cooling.


Antec 300 Illusion Case
EVGA Supernova 750W B2
ASRock Z97 Fatal1ty Z97 Killer
Intel 4690k OC'd to 4.50Ghz @ 1.300V
Phanteks PH-TC14PE CPU Cooler
G.SKILL Ares Series 16GB (4x4GB) 1866Mhz CL9 2T
MSI GTX 980 Ti Gaming 6G 1475 Core/8000 mem @ 1.224V
Sound Blaster Z & Denon AH-D7k w/ LA Mod Level 2 kit powered by O2 Desktop Amp
Samsung 850 Pro 256GB, Samsung 830 256GB, WD Caviar Green 1TB/2TB
Logitech Wireless K800 Keyboard & Logitech Wireless G700s Mouse
Dell S2740L LED IPS 27" 1080p & Samsung 46" 3D 1080p LED
Windows 10 Pro x64

#4 ccokeman

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Posted 10 March 2013 - 06:33 PM

IT all comes down to the specific card really on the Vapor-X cards. The Dual X is not a bad choice any which way you look at it!

 

Be sure to post up the clock speeds you get from it?  


Processor Intel Core I7 4690X  4.3Ghz
Memory G.Skill RipJaws  32GB 2400Mhz
Motherboard ASUS Rampage IV BE
Graphics  GTX TitanX x2
Power Corsair AX 1200,
Monitor ASUS PQ321Q
Cooling Liquid by comittee

Storage  OCZ RevoDrive 350 480GB  Seagate 8TB
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#5 Stealth3si

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Posted 10 March 2013 - 08:36 PM

I see no reason to post clock speeds. I'm going for 1100/1450 - 1200/1600. Not really competing with anyone but if I got questions or whatever I'll post what I got.


Antec 300 Illusion Case
EVGA Supernova 750W B2
ASRock Z97 Fatal1ty Z97 Killer
Intel 4690k OC'd to 4.50Ghz @ 1.300V
Phanteks PH-TC14PE CPU Cooler
G.SKILL Ares Series 16GB (4x4GB) 1866Mhz CL9 2T
MSI GTX 980 Ti Gaming 6G 1475 Core/8000 mem @ 1.224V
Sound Blaster Z & Denon AH-D7k w/ LA Mod Level 2 kit powered by O2 Desktop Amp
Samsung 850 Pro 256GB, Samsung 830 256GB, WD Caviar Green 1TB/2TB
Logitech Wireless K800 Keyboard & Logitech Wireless G700s Mouse
Dell S2740L LED IPS 27" 1080p & Samsung 46" 3D 1080p LED
Windows 10 Pro x64

#6 ccokeman

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Posted 11 March 2013 - 04:30 PM

Its not about competing its about getting a feel for where yours will overclock so that I have a frame of reference greater than 3 Vapor-X or Dual-X 7950's will do.

 

Good luck in your overclocking.


Processor Intel Core I7 4690X  4.3Ghz
Memory G.Skill RipJaws  32GB 2400Mhz
Motherboard ASUS Rampage IV BE
Graphics  GTX TitanX x2
Power Corsair AX 1200,
Monitor ASUS PQ321Q
Cooling Liquid by comittee

Storage  OCZ RevoDrive 350 480GB  Seagate 8TB
Follow OCC on facebook.png