BitCrane UltraHoist board question.

[vulcanjedi]

Greetings programs.

Got an UltraHoist on sale and was wondering if anybody else has some insight into tweaking it.

The hash rate is definitely on the wrong side of the 20% variation but the wattage is pretty close.
Using CGminer can easily change the MHZ but the voltage is fixed at .79. I know with my antminer U3's you have to tweak the voltage and freq to get things optimized.

The PDF instructions mention only a little SBC can change the voltage. Plus the interface looks like it does more tweaking than CGminer.

Any suggestions for a lightweight linux or a way to do this on a windows box? And btw I am using a coolermaster 212 4 pipe 120mm fan heatsink and have been able to push this board to it's watercooled limit without needing a watercooler. But without tweaking the extra hash is not worth the extra watts.

vj

[Romana]

Good day vulcanjedi ,! Who bought the device UltraHoist board? You pay (bank transfer or PayPal)? I wonder how long you went to the device UltraHoist board? Where exactly you osylali? (Which country?) How does the device UltraHoist board?I have difficulty with the connection? Connects to the Raspberry Pi? Maybe what else? Thanking you in advance.

[vulcanjedi]

Good day vulcanjedi ,! Who bought the device UltraHoist board? You pay (bank transfer or PayPal)? I wonder how long you went to the device UltraHoist board? Where exactly you osylali? (Which country?) How does the device UltraHoist board?I have difficulty with the connection? Connects to the Raspberry Pi? Maybe what else? Thanking you in advance.

Your translation does not translate

I just plugged my ultrahoist in the usb and did exactly what I have done with other antminer usb asics. Replace the driver with Zadig and use cgminer 4.9.1

It runs fine but there is no cgminer command to change the voltage it is set to .79 but you can change the frequency mhz.

My experience with the antminer U3 shows you need to change both frequency and voltage to optimize hash rate / power.

I jest need to get off my lazy butt and read the linux instructions and see what ssh commands I need to do from windows.

Good luck
vj

[mcbiv]

Heya don 't know if you're still looking for an answer on this but your best bet is to get a cheap SBC and use it to run your UltraHoist board you will then have te ability to tweak the voltage setting.  Newegg was selling the Cubieboards for $19.00 (not sure if sale is still on).  Cubieboard1 is not the best but BitCrane does have an official linux image for the cubieboard as well as a pretty slick web interface and keep alive scripts for you UltraHoist board.  You can also get a pcdunio for $15.00 to $20.00 on ebay but would need to configure any linux image you use for mining purposes. I attached the the SBC to the bottom of a metal plate that the hardware store had on sale then mounted the UltraHoist board on top. This worked fairly well in creating an independent mining unit that can hash around 550GHs to 850GHs depending on how hard you push the board and the metal mounting plate helped draw heat from the UltraHoist Chip...

http://4.bp.blogspot.com/-wQ6E_Q5U7xQ/VfLYerofK0I/AAAAAAAAAnE/o4LfV07Llqs/s1600/IMG_2164.png

[bmoscato]

Can I ask if you bought them from a user on here or from another source?  I know that NewEgg has them for 159.00 and that a user in the Market area had some that he was selling at 85 used and 105 new...  To me, 159 is too high and the person selling in the Marketing area had no feedback and was a new user, so I decided to hold off on purchasing.