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[Official] AMD R9 280X / 280 & 270X / 270 Owners Club - Page 284

post #2831 of 9745
Quote:
Originally Posted by [CyGnus] View Post

They are hardware capped at 1.263v even if others say they have 1.3v in GPU-Z it reads max 1.263 the only card that does more is the Matrix Platinum it goes o 1.4v (1.382v)

Interesting that they did this with the 280x. I'm wondering if the 270x is capped also...anyone?

The HD7870 DCII's are wide open. Set at 1.35v . (1337mv)


Quote:
Originally Posted by TempAccount007 View Post

My DC2T 280x shows max voltage of 1.279 in gpu-z when I set it to 1.3v. That's before up to 80mv vdroop under load.
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post #2832 of 9745
Buehlar well just open GPU-Z click on the ? and see the sensors smile.gif
post #2833 of 9745
http://www.hkepc.com/10576




Gigabyte r9 280X review over on HKEPC shows the new cooler has the same lesser quality Low RDS(on) mosfets , in 6+2 configuration

Three 8mm heatpipes frown.gif.
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post #2834 of 9745
I expected that from Rev 2, Theres really no difference from Rev 1 since the only thing that changed was the shroud look and black PCB....Really lame on Gigabyte's part
post #2835 of 9745
Quote:
Originally Posted by [CyGnus] View Post

Buehlar well just open GPU-Z click on the ? and see the sensors smile.gif
Thanks, did as suggested. Max 1.199v reported below via GPU-Z which does differ from GPU Tweak monitor reporting 1.33v.
This is with a 245Mhz OC set @ 1.35v via GPU Tweak. I can not achieve these clocks without upping the voltage beyond 1.3v.
I find it difficult to trust GPU-z is reporting these values correctly.
Very interesting. thinking.gif

Any thoughts as to why voltage manipulation drastically improves these cards (HD7870's) overclocking abilities but only GPU-Z tells me that my voltage settings are irrelevant...basically suggesting my cards are voltage capped?

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post #2836 of 9745
Just a quick question....I can't seem to find the answer anywhere.... Im not taking my card apart to find this out but Im curious about what memory chips the Sapphire R9 270X Vapor-X 2gb uses.. Hynix or Elpida etc....
    
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post #2837 of 9745
Quote:
Originally Posted by AlphaC View Post

http://www.hkepc.com/10576




Gigabyte r9 280X review over on HKEPC shows the new cooler has the same lesser quality Low RDS(on) mosfets , in 6+2 configuration

Three 8mm heatpipes frown.gif.

I think we all got kinda screwed on these cards. I'm also wondering if how they weld the copper contact plate to the heat pipes has been damaging some and causing the heating issues with a lot of these. I have a Prolimatech PRO-MK-26 with two Corsair AF140's that will be here tomorrow to replace the Windforce 3.
post #2838 of 9745
guys,

is there any issue's when it comes to 270x Crossfire? like screen tearing?

Tia
post #2839 of 9745
Quote:
Originally Posted by [CyGnus] View Post

TempAccount007 that is maybe a spike not constant voltage...

post #2840 of 9745
Definitely not a spike.... what does GPU Tweak monitor report?
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