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TTBIT Scrypt USB, Official User Manual

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TTBIT Scrypt USB Official User Manual Download Page 17

TTBIT SCRYPT USB Stick Miner User Guide

Last updated on 04/06/2019

Page 17

7c. Checking the core voltage

You will need a voltmeter to check and adjust the core voltage of your ttbit 
device. First set your voltmeter to test voltage. Then place the positive (red) 
probe on the VCORE probe point and negative (black) probe on the ground 
point (see diagram below).  

The stock VCORE value is 0.75V and is suitable for running your device at 
3mh. If you want to overclock your device (hit the high speed of 5mh) then 
you will need to change VCORE value to 0.90V. Use a small screwdriver to 
turn the voltage core pot clockwise (only a small quarter turn is enough). Do 
not over turn the pots, it could damage your device.

Summary of Contents for Scrypt USB

Page 1: ...TTBIT Scrypt USB Stick Miner Official User Guide Last updated on 27 01 2020 Page 1 TTBIT Scrypt USB Stick Miner Official User Guide ...

Page 2: ... 4 2c Correct connection order 4 3 Setup Windows 5 3a Silabs CP210x USB to UART Bridge VCP Driver 5 3b Running bfgminer 6 4 Setup Raspberry Pi 8 4a Using monitor and peripherals 8 4b Using console terminal 8 5 Setup GNU Linux 10 5a Using monitor and peripherals 10 4b Using console terminal 10 6 Basic Troubleshooting Q A 12 7 Voltage and Frequency Adjustments overclocking 15 7a Tuning 16 7b Memory ...

Page 3: ...ith its own integrated cooling solution it includes a 25mm fan so no need to come up with clumsy external fan solutions to keep these cool It can mine any Scrypt algorithm coins such as Emerald Crypto Coin EMD Verge XVG DigiByte DGB Bitcoin via Nicehash Litecoin LTC Einsteinium EMC2 Florin FLO Gulden NLG GameCredits GAME Dogecoin DOGE Viacoin VIA Myriad XMY along many other smaller Scrypt mineable...

Page 4: ...your computer is not up to the task or you want to use two three five or maybe even 10 TTBIT miners I recommend to purchase this USB hub Sipolar 10 Port USB Professional Mining Hub 2b Connection a Connect your USB hub to your host computer Make sure the power adapter is plugged in as well b Insert the TTBIT USB Stick Miner into the USB hub via the USB port 2c Correct connection order Make sure tha...

Page 5: ...this Guide you will receive software pack containing all required drivers Download it and unpack the archive to separate folder First install Silabs CP210x USB to UART Bridge VCP Driver I included Windows 10 driver files Windows 10 only in the folder Silabs Windows 10 Driver which is in Windows folder Open the folder and run CP210xVCPInstaller_x64 exe After successful install you will see this scr...

Page 6: ...tc you can go to Silabs website and download driver directly https www silabs com products development tools software usb to uart bridge vcp drivers Unpack downloaded file and run exe file in similar fashion described above 3b Running bfgminer Navigate to Windows folder included with this manual you will find files similar to this ...

Page 7: ... one It s important to see device listed here MLD 0 and hashrate in MH s Once everything is confirmed working you can exit cgminer by pressing Q for Quit Now modify pool settings by editing bat file right click on the file and select Edit You can enter your own pool settings and addresses and restart cgminer I ve also included few more bat files for different coins and pools please have a look Enj...

Page 8: ...nsfer or simply by plugging USB stick to your Raspberry Pi Once in the folder you will find few example sh files with bfgminer options there Doubleclick on chosen sh file and select Run in terminal option You will see bfgminer window similar to this one If you getting error about missing libncurses so 5 library please install libncurses5 package using your package manager Once you verify that ever...

Page 9: ... enter the command to run it EMD_p2pool sh If you getting error about missing libncurses so 5 library please install libncurses5 package sudo apt update sudo apt install libncurses5 You open your miner everyday by repeating commands to enter the folder and run the bfgminer cd and commands To put your own pool credentials simply backup chosen sh file and edit it using nano editor nano EMD_p2pool sh...

Page 10: ...ile and select Run in terminal option You will see bfgminer window similar to this one If you getting error about missing libncurses so 5 library please install libncurses5 package using your package manager Once you verify that everything is fine you can press Q to exit bfgminer To edit pool credentials to your own simply edit chosen sh file don t forget to backup first 4b Using console terminal ...

Page 11: ... please install libncurses5 package works in Debian based systems sudo apt update sudo apt install libncurses5 You open your miner everyday by repeating commands to enter the folder and run the bfgminer cd and commands To put your own pool credentials simply backup chosen sh file and edit it using nano editor nano EMD_p2pool sh Replace pool credentials in the file with your own save the file by pr...

Page 12: ...t these sticks draw First they need to have a clean high quality power supply that can output at least 1A PER port To run the sticks at full speed you need at least 2A per port Second they need to comply with USB standards which ALOT of cheap hubs don t which causes a lot of EMI issues and disconnects Unfortunately its trial and error to figure this out From my experience Sipolar 10 Port USB Profe...

Page 13: ...t my TTBIT miner to The TTBIT has a list of hard coded frequencies to ensure maximum performance for a given frequency Below is a list of valid frequencies you can use 384 450 480 540 576 600 612 625 636 648 660 672 684 700 720 744 756 768 796 832 852 876 900 924 954 Default frequency is 600 Most stable overclock with works with majority of PCs is 768 You can change the frequency by editing the ba...

Page 14: ... ve included example bat file for Windows users sh for Linux so all you need to do is to edit TBDice_LTC_DGB bat or sh file and replace Litecoin and Dogecoin addresses there Other not solo mining pools https www litecoinpool org https minergate com ltc mining pool https www multipool us https www antpool com Q Which coins should I mine Mining popular and well established coins can be not so easy w...

Page 15: ...ole voltage range is within HALF a turn in either direction from the stock position You must do micro adjustments if you want to do very fine tuning For example going from 75 8 v might take as little as a little torque pressure on the screwdriver even if you don t feel it actually twist Make sure you have place the stick horizontal and the USB end is facing LEFT To turn the voltage UP turn the pot...

Page 16: ... the chips actually switch on and off correctly within their cycle times The main voltage that will effect performance and the tuning outlined below is the Core Voltage The higher the frequency the less time a transistor has to charge so you need more current i e turn up the voltage If these requirements are not met the transistors don t function properly and you have what you know as a Hardware E...

Page 17: ...sitive red probe on the VCORE probe point and negative black probe on the ground point see diagram below The stock VCORE value is 0 75V and is suitable for running your device at 3mh If you want to overclock your device hit the high speed of 5mh then you will need to change VCORE value to 0 90V Use a small screwdriver to turn the voltage core pot clockwise only a small quarter turn is enough Do no...

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