The core asic clock speed is this crystal times 28. Here is a list of oscillators on Digikey you can experiment with if you dare. Lastly the resistors you will need to modify to change the core asic voltage. R1 is conveniently the same as R1 in the datasheet for the Regulator and the same applies to R2 :) To get a higher voltage you can change R1. I used a 10K ohm pot to adjust the core voltage with a volt meter on the pin I soldered to the main asic core voltage line. You should be very careful if you use my method and always have a volt meter on the asic core voltage line. I mostly did changes with the Block Erupter connected to my bench power supply with the current limited to prevent any mishaps. To the left and right of the Block Erupter are my 2 different clock gen circuits I used. I used a simple machine pin style female header so I could easily swap out the crystal. I found 2 different schematics on Google images.Ĭloser view of the board. This one gave me more trouble and wasn’t too stable.Ĭloser view of my modifications. I put a capacitor on the main usb voltage lines to filter out any noise it might have picked up. Removed R1 and installed a 10k ohm trim pot. Voltage pin probe on the asic core voltage line to monitor with my volt meter. Trick is to set the trim pot to 1.2K ohms before you solder it in place then you can just make slight adjustments to home in a stable voltage. I then removed the clock gen and put it on its side. This way I could just solder a small wire to it to get the default clock back to test if I did any damage at any time. I also soldered in a pin that I could connect my oscillator circuits to. Lastly I added a mini heat sinked 5v fan to the back held on with thermal grease and a few small dabs of hot glue on the sides. #USB BLOCK ERUPTER FOR LITECOIN SERIAL#.#USB BLOCK ERUPTER FOR LITECOIN HOW TO#.Afghanistan, Albania, Algeria, American Samoa, Andorra, Angola, Anguilla, Argentina, Armenia, Azerbaijan Republic, Barbados, Belarus, Benin, Bhutan, Bosnia and Herzegovina, Botswana, Brazil, British Virgin Islands, Burkina Faso, Burundi, Cameroon, Cape Verde Islands, Central African Republic, Chad, China, Comoros, Cook Islands, Côte d'Ivoire (Ivory Coast), Democratic Republic of the Congo, Djibouti, Equatorial Guinea, Eritrea, Ethiopia, Falkland Islands (Islas Malvinas), Fiji, French Polynesia, Gabon Republic, Gambia, Georgia, Ghana, Guam, Guinea, Guinea-Bissau, Guyana, Haiti, India, Iraq, Israel, Kazakhstan, Kenya, Kiribati, Kuwait, Kyrgyzstan, Laos, Lebanon, Lesotho, Liberia, Libya, Macedonia, Madagascar, Malawi, Mali, Marshall Islands, Mauritania, Mauritius, Mayotte, Micronesia, Moldova, Mongolia, Montenegro, Morocco, Mozambique, Namibia, Nauru, Nepal, Netherlands Antilles, New Caledonia, Niger, Nigeria, Niue, Palau, Papua New Guinea, Puerto Rico, Qatar, Republic of Croatia, Republic of the Congo, Russian Federation, Rwanda, Saint Helena, Saint Pierre and Miquelon, Saint Vincent and the Grenadines, San Marino, Saudi Arabia, Senegal, Serbia, Seychelles, Sierra Leone, Solomon Islands, Somalia, South Korea, Suriname, Svalbard and Jan Mayen, Swaziland, Switzerland, Taiwan, Tajikistan, Tanzania, Thailand, Togo, Tonga, Tunisia, Turkey, Turkmenistan, Tuvalu, Uganda, Ukraine, Uzbekistan, Vanuatu, Vatican City State, Venezuela, Vietnam, Virgin Islands (U.S.
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