rumors claim the 580 8g reference card will be $199. Just wait a couple of weeks, The 480's will certain drop to the mid $100's. They are already all on sale at newegg

Ok thats where I was confused....580 8g will be similar to the current cards but the vega cards are the ones to watch out for..

To be honest I was actually talking about the vega cards, I was wondering if I should wait on those cards.

If your saying the vega cards need time for the mining software to be developed then it might be worth grabbing a few 470s before they go out of stock.

I expect the Vega cards to be significantly higher priced, much as the Fury and Nano cards were higher. Probably close to double the cost of a 5xx card. From what I can see, the smart money is on waiting until the 5xx cards are released, which will reduced the price of 4xx cards..........but the performance difference in mining will likely mean the 4xx overall ROI and earnings will make them the best choice. It all comes down to price per hash.

Your system without cards draw up to 180-200watt with this CPU, add 140 watt per card, total 180+420 , its 600. All is correct. You can undervolt cards to get 110-120 watt power draw per card.
My rig 6*470s runs at 850watts

I have a 1000w psu 6 x 470 8gb, was running fine before with older claymore version but now I have to unplug 1 card for it to stay on...I think its the watts, 140watts x 6 = 840 + 200w for the rest of the parts....

Don't know how to under vault, have not really looked into it.

You really should look at it. I have near the same config. 1000w psu , but celeron with 65w TDP , only SSD and undervolted 6*470s , without undervolting Iv got 1020 watt power draw from the wall. Not good. -100 mv undervolt, 1100 core clock and vualla , 850 watt from the wall. And card has stripted bios. I have 170 H/s ETH or 1800 sols/s Zcash.

Anybody tried the Biostar TB250 mobo?

I was thinking of trying it out but thought maybe you guys already had and have any advise

Thanks...

@pacers101

Think also about the efficiency of your PSU cause it wont deliver 600W which depends on its standard (platinum/gold/silver or even lower) or lets say it consumes wattage by itself and this is sometimes not less.

AND another point... it reaches its highest efficiency on ~50% workload.

Here is what I do to get 28MHs+ on my MSI RX470 gaming X 4gb Hynix .  (Find out what type of chip you have in the GPU - You do different processes for each)

1) In ATIwinflash save your base bios:  Open atiwinflash and hit save.  Save the file. 

2) Strapping:  Open Polaris Bios Editor and on the timing (MHz) copy the 1500 data to the three settings larger than 1500. On Samsung you will copy the 1750 timing to the larger values.  Watch this video that shows you how to strap.  I did the same method:  https://youtu.be/OP_zSP2H6ho  This will get you 23.5mhs per gpu.

2) On the MSI Afterburner I set the Memory Clock to 2000 and the Core Clock to 1150(up to about 1275) and press the check(Apply).  This should get you the 28mhs.

3) Now I go to WattTool and look at the numbers for each gpu individually.  In this case for gpu "0:Radeon (TM) RX 470 Graphics" look at the mV number in "R7" = 1150mV.  I do not want this number less than 1000mV.  This is just my preference.  Look at the Voltage Offset.  Whatever number you put in here it will be multiplied x 6.25 so, 20 x 6.25 = 125.  1150 - 125 = 1025mV(which is above 1000)  so this one would be -20 and then click "Set"  This gpu should now produce much lower watts.

4) Go to the next gpu and evaluate the number and make the changes in the Voltage Offset based upon the mV number in "R7."  Each gpu will be different.

Good Luck

Let me know if you have more questions.