hashboard antminer s19 Options
hashboard antminer s19 Options
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Solder paste column M705, flux, board washing h2o with absolute Liquor; board washing h2o is made use of to clean up the solder residue just after repair; thermal gel (specification: Fujipoly SPG-30B) is used to smear the surface area with the chip right after repair ；ball-planting metal mesh, solder absorption wire, solder ball (the ball diameter is usually recommended to get 0.
a) Once the card recovery is productively, the inexperienced LED indicator might be normally on, and the ability shall be turned off and restarted;
② Visually inspect whether or not there are obvious indications of burnt components, components impact offset or missing areas, and so on.
a) Liquid crystal display display ASICNG: if (0), 1st evaluate the whole voltage of your measuring domain plus the Raise circuit 20V is regular, then make use of the shorter circuit probe to shorter-circuit the RO exam stage and also the 1V8 check stage concerning the very first and the 2nd chip, after which you can work This system to find the chip. Check the serial port log, if 0 chip remains observed right now, It's going to be considered one of the following cases: a-1) Make use of a multimeter to evaluate if the voltages within the 1V8 and 0V8 examination points are one.8V or 0.8V. If not, it signifies which the 1.8V or 0.8V LDO circuit of the area is abnormal, or the two ASIC chips of the area isn't soldered very well; most conditions of this phenomenon are brought on by brief circuits of 0.8V, 1.8V patch filter capacitors (evaluate the resistance in the patch filter capacitors linked to the back and front with the PCBA). a-two) Look at if the circuits of U2, U3 and U4 are irregular, including resistance welding, etcetera. a-three) Evaluate the resistance of R232 or R233 that has a multimeter to examine whether it is inside of 1 ohms as well as reading is not going to bounce randomly. Otherwise, be sure to replace these two resistors. a-four) Look at In the event the pins of the first chip are soldered effectively (it was identified for the duration of repair that the pins are tinned observing from your side, but the pins will not be stained with tin in the least once the chip is taken off). b) If just one chip can be found in stage a), it implies that the initial chip as well as the previous circuit are great. Use the same approach to examine the following chips. For example, brief-circuit the 1V8 exam level as well as RO check level concerning the 38th and 39th chips. In case the log can find 38 chips, the 1st 38 chips have no problem; if you still locate 0 chips, check the 1V8 to start Order Now with; if It can be ordinary, this means that there is a challenge Using the chips following 38. Keep on to analyze with dichotomy until finally the problematic chip is observed. Assuming that there is a problem With all the Nth chip, once the 1V8 and RO concerning the N-1th and Nth chips are short-circuited, N-one chips can be found, but once the 1V8 and RO involving the Nth and N+1th chips are small circuited, your complete chip cannot be discovered.
3V, as well as the area voltage in the again fields are Practically all increased than 0.38V. This example is caused by the chip not currently being soldered effectively, usually 1.8V, 0.8V, RXT, CLK are not soldered properly. It is recommended to specifically evaluate the domain voltage to Find which domain is the issue. The 1V8 and RO small-circuit method Utilized in part a) can also Find the abnormal placement;
In case multiple chips in a similar domain Have got a small response amount, the a person Together with the reduce nonce in that area ought to be replaced.
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Outcomes from mining calculator are estimation dependant on The present trouble, block reward, and Trade price for specific coin. Faults can manifest, so your expense decision should not be based on the effects of this calculator.
Test the LCD display ASICNG by measuring the whole voltage of the measuring area and Improve circuit.
In the event the miner is within a fault condition, you'll want to Verify The present log. Should the miner is in a traditional state, it is recommended to question the historical log.
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In summary, this repair process involves examining Every chip in sequence by short-circuiting them and monitoring the serial port Procedure until finally the faulty chip is discovered and replaced.
two) A lot less backlink: A lot less backlink refers to that Among the many three boards, one piece is missing. In most cases, You will find there's challenge Along with the connection among the hashboard as well as the control board. Look at the cable to discover if there is an open up circuit.