antminer s19 hashboard repair Fundamentals Explained
antminer s19 hashboard repair Fundamentals Explained
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five. During the examination of repairing and replacing the chip, the chip ought to be tested 1st, and then the purpose exam shall be done after passing. The operate exam need to be sure that the smaller warmth sink is welded qualified. When installing the large warmth sink, the surface area on the chip have to be evenly coated with thermal gel and also the cooling supporter shall be at comprehensive pace.
Repair strategy: check the looks, measure the chip capacitor or resistance in entrance, ordinarily It is a result of poor chip soldering or maybe a chip capacitor, resistor harming or abnormal resistance; VI. Management Board Challenge Triggering the next Troubles 1. The complete miner does not get the job done 1) Test whether or not the voltages at a number of voltage output points are typical. U8 is often disconnected initially if 3.3V is brief-circuited. If it continues to be short-circuited, the CPU is often unplugged for measurement. For other voltage abnormalities, frequently change the corresponding converter IC. two) Should the voltage is ordinary, make sure you Look at the welding status in the DDR/CPU. 3) Try and update the flash program with SD card; In the event the miner of which the Regulate board has become reflashed should get started Ordinarily, the subsequent two actions are necessary: a) Once the card recovery is handed, the green LED indicator will likely be often on, and the power shall be restarted; b) Look forward to 30s immediately after powering on all over again (enough time study course of turning on OTP).
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③ Make use of a multimeter to evaluate the resistor of R8 or R9 to see whether it is within 10 ohms, as well as the looking through will never jump randomly. Otherwise, substitute each resistors;
b) Enter the person title, password and the test command to begin to see the NONCE return position and also the standing on the voltage domain. When there is abnormality in NONCE and domain voltage, it can be repaired in accordance with the abnormal chip printed.
Check out the welding high quality of your chip which connects sensor as well as the little heat sink. The deformation of huge heat sink substance will trigger poor warmth dissipation of the chip and influence the temperature big difference.
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PatternNG is due to the big distinction between the qualities of your chip and various chips. At present, it can be discovered which the chip die is damaged, so just exchange the chip. In accordance with the log info, the alternative procedures are as follows:
a-4) Examine In case the pins of the main chip are soldered well (it absolutely was discovered for the duration of repair the pins are tinned observing through the aspect, although the pins are not stained with tin whatsoever once the chip is eradicated)
● The repaired hashboard could be judged as a fantastic merchandise with more than two passes when testing With all the hashboard tester. For The very first time, following replacing the elements, look forward to the computing board to chill down, utilize the hashboard tester to check, and following the take a look at is passed, established it aside then interesting it down. For the next time, immediately after a couple of minutes if the hashboard cools down, examination once again.
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When putting in the massive warmth sink, the surface on the chip must be evenly coated with thermal gel and also the cooling fan shall be at entire pace. When utilizing the chassis to dissipate warmth, 2 hashboards needs to be put concurrently to form an air duct.
two. Once the EEPROM NG is displayed around the LCD screen of the hashboard tester, Verify whether or not the welding of U10 is ordinary;