So I recently aquired a couple used S3+ miners.  One of them I have had running for about 5 days and a couple of times one of the hash boards just stopped responding.  The interface showed all o's for its asics, but the temp dropped to room temp and the hash rate of the unit was cut in half.  The first reboot showed that hash board missing completely, but after fully removing power and starting back up, both boards came online and were hashing at full speed.  

After a little playing I found that it reboots a little more reliably at 218.75M frequency which is stock for the s3 whereas the s3+ stock is at 225.  When I first got this miner running, the previous owner had it running at 231.25 and had the voltage setting at 0785.  So my main question is.  What is the stock from factory voltage setting for the S3+?  Secondly, any tips on what steps to take while troubleshooting this issue?  The strange thing is that the fan speed is still being reported to the controller after the board stops hashing.

I have a 5830 card that I recently installed but I can't seem to get it to overclock to the degree that I see others doing.  I can only increase the clock speed to 950 MHz where I see several reports on the mining hardware comparison that state 1040.  I haven't tried to mess with the memory clock much I have tried it at the stock 1000 MHz and 810 MHz.  Is there something I'm missing here or is it just a poor performer?

If it matters I am mining with guiminer, phoenix with the phatk kernel that is bundled with guiminer. (-k phatk VECTORS BFI_INT FASTLOOP=true WORKSIZE=128)

SO this page http://dot-bit.org/tools/nextDifficulty.php is reporting that the namcoin dificulty will drop by nearly half in the next adjustment.  I know that the bitcoin difficulty dropped in it's infancy but was it this steep?

Details in the link.  Here's the Pic.



http://www.pcper.com/news/Graphics-Cards/PowerColor-Shows-New-4GB-AMD-Graphics-Card-Two-Stock-Clocked-6970-GPUs

So I am having trouble getting two GPUs running in windows.  I am wondering if there is a secret! 

I have a 6870 that is installed and running with poclbm with guiminer.  I also have a 4870 card in the board's second x16 slot.  The device manager see the card and correctly identifies it. However, when I run poclbm in command line mode I only see [0-0] Barts as well as the CPU. I have also noticed that there is no mention of the 4870 card in CCC. I believe that I'm missing something basic since this is my first attempt at multiple GPUs on a mobo.

So I am having trouble getting two GPUs running in windows.  I am wondering if there is a secret!  

I have a 6870 that is installed and running with poclbm with guiminer.  I also have a 4870 card in the board's second x16 slot.  The device manager see the card and correctly identifies it. However, when I run poclbm in command line mode I only see [0-0] Barts as well as the CPU. I have also noticed that there is no mention of the 4870 card in CCC. I believe that I'm missing something basic since this is my first attempt at multiple GPUs on a mobo.

Has anyone experimented with hosing a bitcoin pool on amazon's EC2?  It seems like the perfect platform for this but I was estimating that a small pool (~300 Getworks p/s) would run the operator around $1000 US monthly.  Thoughts???

All,  I have a question that I am sure has been asked before!  If you will indulge me, however,  I have several computers with modest GPUs and am hashing around 400 MH/s right now.  I have accumulated around $230 in profit in mining and am going to get a new GPU for one of the machines.  I have been looking at the AMDs since they have better hash rates for some reason, but I wanted to crowdsource the answer to the question, which one should I be looking at from a MH/s per dollar perspective?  I have been looking at a 5850 but didn't know if I should look into a 6xxx series since they are newer. (Assuming newer is better, which I know isn't always true)