The smart Trick of antminer s19 hashboard repair That No One is Discussing
The smart Trick of antminer s19 hashboard repair That No One is Discussing
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5. Inside the test of repairing and replacing the chip, the chip must be tested initially, and after that the purpose take a look at shall be executed immediately after passing. The perform take a look at will have to make sure that the little heat sink is welded certified. When setting up the massive warmth sink, the area in the chip has to be evenly coated with thermal gel along with the cooling supporter shall be at complete pace.
Repair approach: Examine the looks, evaluate the chip capacitor or resistance in entrance, normally It is caused by inadequate chip soldering or perhaps a chip capacitor, resistor damaging or abnormal resistance; VI. Handle Board Dilemma Causing the next Complications 1. The entire miner does not get the job done 1) Verify whether or not the voltages at numerous voltage output points are ordinary. U8 is usually disconnected first if three.3V is brief-circuited. If it remains to be shorter-circuited, the CPU might be unplugged for measurement. For other voltage abnormalities, usually substitute the corresponding converter IC. 2) Should the voltage is standard, be sure to check the welding standing of the DDR/CPU. three) Attempt to update the flash software with SD card; In case the miner of which the Command board has actually been reflashed should start out Commonly, the next two steps are necessary: a) Once the card recovery is passed, the environmentally friendly LED indicator will probably be always on, and the ability shall be restarted; b) Look ahead to 30s immediately after powering on again (some time program of turning on OTP).
In the case of a specific chip staying fixed, look for abnormal resistance welding on the entrance and rear CLK, CI, and BO of the Xth chip. If the check time is almost twice as long as The great board, it may reveal a challenge with soldering.
When powering over the hashboard, join the destructive copper twine of the facility source initially, then the positive copper twine of the ability offer, and finally, insert the signal cable.
; Next, after the visual inspection is handed, the impedance of every voltage domain is usually analyzed initially to detect regardless of whether There's a small circuit or an open up circuit. If observed, it need to be handled initially. Additionally, check whether or not the voltage of each domain is about 0.36V.
③ After the visual inspection is Alright, the impedance of every voltage domain can be detected to detect whether There's a limited circuit or an open circuit. If identified, it must be addressed to start with.
Routine maintenance technique: In the PT2 take a look at, think about the serial port print log. It is generally attributable to an mistake from the register address of a certain chip. Just replace the BM5 chip as demonstrated in Determine five-19 (asic starts off from 0).
If the EEPROM NG is displayed about the Liquid crystal display screen of the hash board tester, Test whether or not the welding of U5 is normal.
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Measure whether or not You can find output on Go Here the second pin of U3 as well as the voltage is about 3.3V; if Indeed, remember to continue on to troubleshoot the challenge; if there's no three.3V, you should Examine the link position with the hashboard tester cable along with the hashboard is Alright, and reprogram the PIC.
Verify whether or not the 4 resistors of R24~R27 are welding abnormally and Test if the welding of PIN2, three of U3 is standard.
Referring into the take a look at procedure doc, the final complications that crop up are assembly course of action difficulties and control board approach issues. Typical complications incorporate The lack to detect the IP, irregular quantity of detected lovers, and irregular detected chain.
① The main case: (generally the worth of your noted chip will likely not improve each check), this case is probably going for being due to irregular soldering with the front and rear CLK, CI, BO in the X-th chip, so give attention to these six resistors.
PS: If the hash board just isn't driven or driven off based on the take a look at sequence, triggering U2 and U10 to burn off out, it'll report 0 when testing the chip;