Author Topic: XFX R9 280x DD (TDFD) or Black OC (TDBD) edition undervolting  (Read 6749 times)

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Offline metraqueTopic starter

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XFX R9 280x DD (TDFD) or Black OC (TDBD) edition undervolting
« on: January 30, 2014, 04:35:48 AM »

There are two types of XFX R9 280x, the Double Dissipation or DD edition (TDFD model) and XFX R9 280x Black OC (TDBD model). I still encounter no difference on these ones, as you see the packaging is almost the same, but it could be just something with the clocks:
Edition: TDFD (DD), TDBD (BLACK OC)
Core:     850mhz,    1000mhz
Boost:   1000mhz,   1100mhz


And of course power consumption is different, but no clue about a voltage difference, or an optimum (sweet spot) voltage for each edition.

How do you undervolt those beasts? In linux, with bios, cgminer, additional software..? There's no info out there, but I've heard that if someone done this successfully, reducing electricity costs dramatically even mantaining a 700kh/s rate.


Any info guys?
« Last Edit: January 30, 2014, 04:42:29 AM by metraque »


Offline metraqueTopic starter

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Re: XFX R9 280x DD (TDFD) or Black OC (TDBD) edition undervolting
« Reply #1 on: January 30, 2014, 04:42:43 AM »
/bump

Offline hash.net

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Re: XFX R9 280x DD (TDFD) or Black OC (TDBD) edition undervolting
« Reply #2 on: February 06, 2014, 06:44:52 AM »
I use trixx to change my voltage.


--scrypt -I 19 -g 1 --thread-concurrency 24000 --worksize 256 --gpu-engine 1053 --gpu-memclock 1500 --gpu-powertune 20 --queue 1 --lookup-gap 2 --auto-gpu --gpu-memdiff 0 --gpu-fan 100



AnonCoin Pay-Per-Share Pool + Block Finder BONUS: *Link Removed*

 

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