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Author Topic: Pepper Mining App  (Read 1249 times)
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June 01, 2014, 05:59:34 PM
 #1

I just released a early preview version of the Pepper Mining app that works with cgminer and any board using the HF Golden Nonce chip Habanero boards are using.

The idea of this tool really is to help you get proper cooling on your boards since this is one of most important aspects of being able to increase hashing rates.  I have tested several Habaneros over the last week and getting the cooling head aligned isn't an easy task.

Steps:

1.
So what I do is put the cooling head on and tighten it till i start to feel a decent amount of resistance on the screw heads (you will need to play with this to figure out what that is).  Then I launch cgminer at a low hash clock rate such as

Code:
cgminer --hfa-fan 100 --hfa-temp-overheat 110 --hfa-hash-clock 300 --api-listen --api-network

If you applied enough basic pressure this should be running fine, if your getting thermal trips then you do not have enough pressure so find the screw or screws that need a bit more pressure.

2.
If its hashing launch the pepper mining app, and go to the stats graph, this is where you can see how well you did with getting cooling even.



You can see here that asic 1 and 2 are a bit hot or could use some adjustments.  As you can see from left to right they are running a bit higher than the others, and from this screen shot mid way on the right you can see I did a small quarter turn of the screw for asic 2 and the temp dropped down.

This is just an example of how to use the app, once you have properly aligned or gotten them as close together as you can, you can start bumping up the hash clock frequency in cgminer to see what you can run stable.

Pic of the board with the die locations:


One thing is for sure if you want to push your boards stock fans that come with the coolers do not cut it, you need a decent server style fan to push a lot of air though the radiator.  I use San Ace 120 12v server style fans and by using these I can see anywhere from 5-10C drop in temps across the board allowing me to push boards anywhere from 850-900+

Read more about this app here and the download links.
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June 10, 2014, 07:56:43 PM
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I made an update to this app, so if you have more than one board plugged into your host you have the ability to select which one to get the data from, see screen shot here.



You can grab the latest builds here here.

Donations are welcome to continue app development! 15XLtKh5ziBqiaF1vAMiKRD5keqY8JSUJg
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