b) If a person chip are available in action a), it means that the first chip as well as former circuit are ordinary. Use an analogous process to check the following chips. By way of example, Should the 1V2 take a look at point and RO take a look at issue involving the 38th and 39th chips are shorter-circuited, If your log can find the 38th chip, then there isn't a dilemma with the primary 38 chips. If 0 chips are still discovered, to start with Verify if the 1V2 is usual.

Repair approach: Look at the appearance, evaluate the chip capacitor or resistance in entrance, usually It is due to lousy chip soldering or possibly a chip capacitor, resistor damaging or irregular resistance; VI. Manage Board Challenge Producing the Following Challenges one. The complete miner does not work 1) Verify whether the voltages at many voltage output details are usual. U8 may be disconnected first if 3.3V is brief-circuited. If it remains to be quick-circuited, the CPU is usually unplugged for measurement. For other voltage abnormalities, frequently exchange the corresponding converter IC. two) In case the voltage is normal, you should Examine the welding position with the DDR/CPU. three) Try to update the flash program with SD card; If your miner of which the Handle board has long been reflashed has to commence normally, the next two steps are essential: a) After the card recovery is passed, the environmentally friendly LED indicator might be often on, and the ability shall be restarted; b) Wait for 30s immediately after powering on again (time system of turning on OTP).

; Next, following the visual inspection is handed, the impedance of every voltage domain is usually analyzed initial to detect no matter if You will find there's shorter circuit or an open up circuit. If uncovered, it should be addressed 1st. On top of that, Test whether the voltage of every domain is about 0.36V.

a) Liquid crystal display Show ASICNG: if (0), 1st measure the whole voltage on the measuring area and also the Increase circuit 20V is regular, and afterwards utilize the small circuit probe to shorter-circuit the RO examination position along with the 1V8 exam issue concerning the main and the next chip, after which operate This system to discover the chip. Examine the serial port log, if 0 chip is still observed at this time, it will be among the subsequent predicaments: a-1) Use a multimeter to evaluate whether the voltages for the 1V8 and 0V8 take a look at points are 1.8V or 0.8V. Otherwise, it indicates the one.8V or 0.8V LDO circuit of this domain is irregular, or the two ASIC chips of this domain is not soldered well; most circumstances of the phenomenon are due to shorter circuits of 0.8V, one.8V patch filter capacitors (measure the resistance on the patch filter capacitors linked to the back and front with the PCBA). a-two) Verify whether the circuits of U2, U3 and U4 are irregular, such as resistance welding, etcetera. a-three) Measure the resistance of R232 or R233 that has a multimeter to check whether it is inside of one ohms as well as examining will likely not bounce randomly. If not, make sure you exchange both Order Here of these resistors. a-4) Check Should the pins of the 1st chip are soldered nicely (it absolutely was observed all through repair the pins are tinned observing from the aspect, even so the pins are certainly not stained with tin in any respect in the event the chip is taken out). b) If one particular chip can be found in step a), it indicates that the 1st chip as well as past circuit are great. Use an analogous process to examine the subsequent chips. For instance, limited-circuit the 1V8 check position as well as the RO exam stage in between the 38th and 39th chips. Should the log can discover 38 chips, the main 38 chips have no issue; if you still come across 0 chips, Examine the 1V8 first; if It really is regular, it means that there is a dilemma Using the chips soon after 38. Carry on to analyze with dichotomy right up until the problematic chip is discovered. Assuming that there's a challenge with the Nth chip, once the 1V8 and RO concerning the N-1th and Nth chips are short-circuited, N-1 chips can be found, but in the event the 1V8 and RO between the Nth and N+1th chips are short circuited, all the chip cannot be discovered.

A lot less chain: Therefore 3 boards are missing a person board. Most often, You will find there's difficulty Using the relationship between the hash and Command boards. Test the cable to see when there is an open up circuit.

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b. Check whether the inlet air temperature from the miner is simply too superior, and ensure the exhaust air is smooth.

① The precise Evaluation approach is as follows: Very first, perform only one-board PT2 exam to check if the general performance of the hash board is normal.

Abnormal enthusiast Show: In these cases, we must Look at whether or not the fan functions Usually, whether the reference to the control board is normal, and whether or not the Management board is abnormal.

● When finding the defective chip, the chip needs to be welded once again. The tactic is to add flux across the chip (ideally no-cleanse flux), and heat the solder joints with the chip pins to the dissolved point out to prompt the chip pins and pads to re-operate in and acquire the tin, so as to accomplish the outcome of tinning all over again. In case the fault stays precisely the same immediately after re-soldering, you may right exchange the chip.

b) If a single chip are available in step a), it suggests that the first chip plus the prior circuit are superior. Use a similar process to check the following chips. Such as, brief-circuit the 1V8 take a look at level as well as RO check position concerning the 38th and 39th chips. When the log can discover 38 chips, the main 38 chips haven't any problem; if you still discover 0 chips, check the 1V8 1st; if It is typical, it means that there's a trouble with the chips following 38.

(one) Utilize the APW12 energy provide (APW1212V-15V and ability adapter cable) to build a check platform: Use thick copper wires for your constructive and detrimental poles of the power source, and after that connect the PSU and also the hash board.

two. In the event the EEPROM NG is exhibited over the Liquid crystal display monitor of the hashboard tester, check whether or not the welding of U10 is ordinary;