General Info:- These puppies are heavy and love to eat power so make sure you now how many amps your plugs can take and what fuses they might be on.
- 3 Boards come in each Sierra and are daisy chained together.
- 2 Power supplies with paper clip trick to enable you to turn them on *see powering up the device
Power:- For example I think a typical us household plug might take 20 amps per fuse which could be spread over a few sockets or one.
- These devices seem to take about 1W per Gh, so if you over clock it to lets say 1.4 Th/s your running around 1400 watts and maybe around 11amps.
- Plugging in two into one socket might might be to much and you might get the feeling that the devices are not working but it might just be you do not have enough power, so check this first if your having issues.
Getting Started:I would personally suggest using a flavor of unix, for my miners I usually use ubuntu desktop 12.04x 64 bit, and enable vnc so I can remote desktop into my boxes. I then compile cgminer or bfgminer depending on your preference with the proper switches for the hashfast devices.
[maybe someone using these on windows can explain the process of getting it setup]
Once you have the miner software compiled its time to fire up your first box. Do these in order for now until some bugs are resolved.
If you have one sierra make sure you have enough power, see power section above.
Turning On Single:- With your pc booted into linux and terminal window open, turn on both power supplies on the Sierra.
- Plug in the USB cable into the back of the Sierra if you haven't done already.
- Plug in the USB cable into your pc
- Start Miner software ... wait a few seconds while it recognizes the device.
You should be up and mining if no issues like power or other are plaguing you.
Multiple Sierras one pc:- Do the same as above with the first Sierra to get it mining, make sure you do not have all Sierras plugged in to the box just one.
- Once one is hashing, plug in the next, and wait for it to recognize and start hashing, rinse and repeat on other boxes.
- note** if your having issues make sure you have enough power **
Once hashing, leave them alone or you can try the oc settings which I can talk about in another post and be aware if you use these your going to use more power from the outlet so the other sierras that are plugged in might stop working since you do not have enough power.
This should get you hashing, ill try to keep this updated and post other things about the Sierra's as I get time.
cgminer stuff:If your using cgminer you have 2 additional options right now with 3.11x
--hfa-hash-clock <arg> Set hashfast clock speed (default: 550)
--hfa-temp-overheat <arg> Set the hashfast overheat throttling temperature (default: 85)
Ill talk about overclocking later and please make sure to read the warranty of your device before doing so and understand you could void it or cause issues with your mining hardware.
Getting cgminer to work on windows with your HF device..
- Start cgminer (no extra options)
- Plug in device, wait for windows to finish installing the driver it thinks is right, then run zadig as administrator and tell it to use the WinUSB driver for the "M1" device which is what the hashfast comes up as.
- cgminer should just hotplug it at that point.
