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cambda
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September 17, 2012, 01:59:28 PM
 #21

Make sure you can try it before buying or it come with some warranty, then its good price, otherwise not


 
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September 18, 2012, 02:51:42 PM
 #22

Got it off Craigslist. It came with an aftermarket heatsink -> http://www.newegg.com/Product/Product.aspx?Item=N82E16835186046

it runs pretty well... I think. Getting an average of 326 M/hash using cgminer.

I am not sure if the previous owner installed the heatsink correctly because GPUz is reporting high temps on GPU #2 and GPU #3

Should I redo it?

Also, on cgminer it seems like the "--gpu-engine" AND "--gpu-memclock" flags aren't being applied. No matter what I change them to GPUz reports 775/1125 for speeds.

Anyone know how to fix this or if I am doing something wrong?
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September 18, 2012, 02:52:55 PM
 #23

Just be sure they aren't scammers, ask for pictures of the cards with a paper with their name on it and date.  You could take it a step further and search their user name on the forums and ebay.  This is all if you are paying bitcoins for them, if you are doing paypal, you don't have as much to worry about.

No doubt. I made the guy show me it worked before I purchased it.
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September 18, 2012, 07:00:50 PM
 #24

http://i46.tinypic.com/34qqqvq.png



are these acceptable temps?
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September 18, 2012, 07:07:13 PM
 #25

Looks like a good price to me.

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September 18, 2012, 09:14:38 PM
 #26

Also, Why does cgminer say my average hash is 335.6 Mh/s, but P2Pool says it's ~270 Mh/s?

Seems like a pretty big difference to me.
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September 18, 2012, 09:21:03 PM
 #27

The "~" number is averaged over a short period of time based on submitted shares. It will fluctuate above and below your clocked rate. In the long run your "~" number will average out the the clocked number.
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September 18, 2012, 11:57:54 PM
 #28





are these acceptable temps?

I use AfterBurner for my GPU temp monitoring but if the 66 degrees is your temp that is fine. If it is the 100+ listed under GPU #2 that is too high. I have a 7970 OC'ed to 1110 mhz and I have a custom fan profile set to keep it less than 78c (get artifacts above there on that clock). Would see if you can get a custom fan profile loaded.


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September 19, 2012, 03:13:15 AM
 #29

Man I would seriously increase your fan speed !!! I would start at 40% and raise it till it gets to noisy. I just use CGMiner no Afterburner and my 5850 is stable at 875/500. A thing to try would be to run Afterburner or Sapphire Trixx and do a reset on the card. Restart your rig and see if it OC's. Thats what worked for me.
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September 19, 2012, 03:50:45 AM
 #30

Wow,up the fan speed until your temps are about 70c  Wink

107c is melt down temp  Sad

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September 21, 2012, 03:42:51 PM
 #31





are these acceptable temps?

too much
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September 21, 2012, 05:39:05 PM
 #32

I'm getting a 5870 for 125 tomorrow, I recommend just saving that 75 and buying a BFL Jalapeno though.

I don't know - I am not holding my breath on the BFL shipping dates - so you might actually be better off buying it, ordering the jalapeno, mining the Radeon, sell the radeon when the jalapeno arrives.

At least thats the way i am playing it to hedge my bets..
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September 21, 2012, 07:49:26 PM
 #33

cool.

I think I might be able to get two ATI Sapphire Radeon 5830 for $100.

That's a deal I would take, even if it were just to sell them on eBay for a profit.
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September 22, 2012, 08:37:54 PM
 #34

Great deal for the 5850! I've got 3 running in 1 rig, putting out 285 mhash @ 0.95v running @ 750/250 each.
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November 16, 2012, 08:27:23 AM
 #35

wow thats great with $75.Last time I found was $310.

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