The Fact About s19 hash board That No One Is Suggesting
The Fact About s19 hash board That No One Is Suggesting
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If the connection is OK, the consumer can check The only board PT2 to check if it could pass the examination. If it passes the take a look at, it could in essence be determined that the condition is around the Manage board. If the check fails, make use of the PT2 repair system to repair it.
Repair system: Examine the appearance, evaluate the chip capacitor or resistance in front, commonly It can be attributable to inadequate chip soldering or perhaps a chip capacitor, resistor detrimental or irregular resistance; VI. Manage Board Problem Resulting in the subsequent Troubles 1. The full miner does not work one) Verify whether the voltages at various voltage output factors are normal. U8 could be disconnected 1st if 3.3V is short-circuited. If it is still quick-circuited, the CPU is usually unplugged for measurement. For other voltage abnormalities, generally exchange the corresponding converter IC. 2) If the voltage is typical, make sure you Examine the welding status from the DDR/CPU. three) Make an effort to update the flash software with SD card; If the miner of which the Command board has long been reflashed must begin Typically, the next two techniques are required: a) Once the card Restoration is handed, the green LED indicator might be constantly on, and the power shall be restarted; b) Look forward to 30s immediately after powering on all over again (enough time program of turning on OTP).
seven. When powering about the hashboard, user will have to 1st connect the unfavorable copper wire of the facility offer, then the beneficial copper wire of the facility source, And at last plug inside the sign cable. When eliminating, the order of installation have to be reversed. To start with eliminate the signal cable, then eliminate the positive copper wire of the ability offer, and finally take out the damaging copper wire of the ability provide.
six. The repaired hash board must be analyzed which has a exam fixture, and it have to move much more than two occasions to become judged as a great product or service. For The very first time, right after replacing the accessories, look forward to the hash board to cool down, utilize the test fixture to check, and when is passed, set it on one particular aspect ahead of cooling down. The next time, await the hash board to chill down wholly in advance of screening.
The voltage of each and every voltage area is about 1.35V. If there is a 14V powering, there is generally a domain voltage, as well as the output of the facility terminal on the hash board is calculated initially; if there is a 14V powering but no domain voltage, continue to check down.
● When locating the faulty chip, the chip ought to be welded once again. The strategy is so as to add flux throughout the chip (ideally no-clear flux), and heat the solder joints of the chip pins to a dissolved state to prompt the chip pins and pads to re-run in and gather the tin, so as to realize the outcome of tinning again. Should the fault stays the same right after re-soldering, you could instantly change the chip.
; Next, after the visual inspection is passed, the impedance of every voltage area can Get It Here be examined first to detect whether You will find a quick circuit or an open up circuit. If Of course, it should be handled first. Furthermore, Check out whether or not the voltage of each and every area is about 0.36V.
one. Consult with the voltage worth variety described because of the sign trend. In case the measurement encounters a significant deviation on the voltage price, it could be when compared with the calculated price of the adjacent team to determine.
(two) Make use of the test fixture in the V2.1010 Management board (its design is ZJ0001000001), the positive and damaging poles of the ability provide in the take a look at fixture should be put in which has a discharge resistor, and it is recommended to make use of a cement resistor of 25 ohms and higher than 100W.
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In all probability, the IP cannot be identified as a consequence of irregular operation. Check with the very first position for troubleshooting.
c) Liquid crystal display display ASIC75: (Reporting seventy five), it ensures that the hash board can detect seventy six chips at 115200 baud rate, but only 75 chips are identified at 12M baud charge, and one particular chip could not discover at 12M baud level; Repair approach: Using the dichotomy method, shorter-circuit the 1V8 take a look at stage as well as the RO test issue concerning the 38th and 39th chips from the quick-circuit probe.
PS: If the hash board just isn't run or run off in accordance with the test sequence, leading to U2 and U10 to burn up out, it can report 0 when tests the chip;