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Author Topic: [BAMT] HD5830 Hardware Differences using phoenix phatk2/poclbm  (Read 2799 times)
nolo200
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June 24, 2012, 06:50:41 AM
 #1

I posted this under the BAMT thread as well......

Hey guys, I just set up a new rig with BAMT.  I'm running 6 5830's in it, all running stable @ ~=63C.  Problem is there are two different models of Sapphire 5830 Xtremes.  They look the exact same, but the components on the PCB are different and in different locations. 

I've had been using phatk2 with phoenix on my 5970 with great success.  phatk2 with phoenix on the one model of 5830 gets me a solid 320MH/s @ 1000:300:1.168V.  On the other model, same clocks/voltage, I get 250MH/s.

So here is the funny thing.  I switched the 250MH/s cards into my gaming computer and I get the same thing with phatk2, but if I use guiminer with poclbm, I get an easy 310MH/s....which is ass backwards if you ask me.

So I'm trying to run 3 cards on phatk2 and 3 on poclbm in bamt with no success.  The phatk2's start mining no problem, but the poclbm's don't start and the cpu peaks and stays peaked trying to start them. 

As far as software.  I installed bamt 0.5c.  Ran apt-get update (Don't do upgrade it screws EVERYTHING up).  And ran the fixer.  I tried installing pyopencl and it seemed to screw thing up too.

Hardware: sempron 140, msi 890fxa-gd70, 1gb kingston, 2x cooler master 750w supplies, 3 extenders are powered by molex.

Please help guys!  How do I get this poclbm working?  Thanks in advance.
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June 25, 2012, 12:44:47 AM
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Problem solved.  It seems that the problem was that the bios would ONLY allow Sapphire Trixx to overclock the cards.  Flashed the bios with a "bios overclock" and everything works fine now.  Apparently the difference in CCC 11.6 and 12.4 was the differential between the poclbm and phatk2 problem leading me to believe poclbm is better with CCC 12.4 while phatk2 is better with 11.6.

Everything is running 100% stable now with 6 5830's running at 1020Mhz/360Mhz/1.168V/80% fan.  Average 6x320MH/s=1.92GH/s per rig.  Not sure on power consumption (I left my Kill-a-watt in Missouri and I have free power this summer for my internship so I really don't care), but the fans on the power supplies are pumping some pretty warm air out.  Rig is headless on its' own 20amp breaker.

Cards are running at about 70C in an ambient of about 69F.
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June 25, 2012, 11:26:03 AM
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was gonna say, sounds like your cards are still running at stock speeds, would be an issue with whatever you're using to OC with, and I recommend Sapphire Trixx for software OC, or BIOS flash for headless or set and forget rigs.

Too bad I didn't see this earlier, would've been an easy couple of bitpennies.

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