ASIC repair training

Full-time training in diagnostics and repair of ASIC hash boards. Practice in the existing service center on working miners

Start: 30 May
There are: 1 places
enroll in the course
Group:
up to 4 people
Document:
Certificate
Help:
In employment

Who is this course for?

For beginners
For those who want to improve their skills
For those who are looking for work
For students
For those who want to open their own SC

What will you learn

  • Quickly find faults on the hash board
  • Soldering chips, BGA chips, SMD components
  • Circuitry, reading ASIC circuits
  • Replacement of connectors, restoration of burnouts
  • Remove common viruses, including Antbuild
  • Diagnostics of power circuits on hash boards
  • Remove protection against changing firmware (file “Signature”)
  • Soldering boards using bottom heating
  • Flashing controls - changing the firmware with soldering the memory chip
  • Select safe temperatures for desoldering chips
  • Eliminate floating defects
  • Asik preparation for immersion in the immersion bath

What will you get after the training

Выдача сертификатов
Certificate — an official document of education
After completing the training, you receive a Certificate. Your advantage when applying for a service center or company
Help with employment
Owners and managers of service centers apply to Bgacenter if there are vacancies - phone repairman or service center receiver. Therefore, there is almost always a possibility of employment in the service centers of St. Petersburg, upon completion of training and successful certification.
Компенсация обучения
Tuition compensation, 13%
By completing any training program at bgacenter, you can receive a tax deduction for training

Training program

Full-time training from scratch to master hash board repair. Real practice in the service center for diagnostics and repair of popular ASIC models. You will learn how to identify and troubleshoot common ASIC faults on production boards. After completing the training, you will be able to independently diagnose and repair the hash of the board.

1

ASIC diagnostics

Training in diagnostics at the control points of the hash board, using a multimeter and an oscilloscope. The control points of the Antminer hash board are designed to measure the voltages necessary for the correct operation of the device. They are set by the manufacturer to facilitate the maintenance and repair of ASICs.

 

Learning how to repair ASICs, you will learn to understand the signals, namely:

  • what these signals are needed for in the device
  • what function does each of them perform during operation

 

ASIC diagnostics in the WEB interface. Reading and decrypting “Kernel log”

Types of errors:

  • Overheat
  • Voltage drop
  • log says nothing

 

Visual inspection:

  • ASIC cases
  • connectors on hash boards, control board
  • connecting wires
  • coolers
  • power supply
  • board hash (corrosion, dust pollution, “fell off” heatsinks)
  • control board

Visual inspection of hash boards:

  • mechanical deformation
  • lack of cooling radiators
  • violation of the soldering of the chip (falls off along with the radiator on the 17th series)

Visual inspection

Visual inspection

 

Carrying out remote diagnostics via the web interface:

  • log reading
  • zeros and crosses – the state of the chips
  • temperature of microcircuits, hashplates
  • hashrate for each Hash board
  • the presence of a large number of HW

Hash board diagnostic training

Hash board diagnostic training

 

Types of signals, their direction:

  • CLK – a clock signal, enters the microcircuit from the clock generator, is generated by a quartz resonator, and is transmitted from the first to the last chip. It is the main signal for the operation of the ASIC chip. Diagnosed with an oscilloscope. The signal shape is checked at the input and at the output of the chip, it must be the same, it should be 0.9 V in amplitude.
  • RI/RO – signal reception. Transmitted from the last to the first chip. It has a high voltage level of 1.8 V. (RI – signal input to the microcircuit, RO – signal output from the chip)
  • BI/BO – pulse signal (sent from the first to the last chip). During operation, its amplitude is 0.3 V.
  • RST – reset signal, transmitted from the first chip to the last one. Has a high voltage level, 1.8 V, at the time of calculation.
  • CO – data transfer from the first to the last.
1

ASIC soldering

During ASIC repair training, you will learn how to solder chips in QFN cases. In practice, master the soldering of hash boards, in the following sequence:

  • Dismantling of heat sinks
  • Cleaning the surface of the chip from the remnants of hot glue
  • Soldering an integrated circuit
  • Pad preparation
  • Tinning a new chip
  • Positioning the chip on the board
  • Integrated circuit soldering
  • Installation of cooling radiators

 

Asic Antminer Bitmain Chip Soldering Training:

  • BM1485 – installed on L3, L3+
  • BM1387B – installed on S9, S9i, S9j, T9+

Circuit soldering trainingм

Circuit soldering training

1

Hash board repair

  • Download protocol analysis and signaling
  • Design features of integrated circuits for special purposes
  • Temperature sensor error
  • Low hashrate
  • Dust removal
  • Measurement of amplitude values ​​of signals at control points
  • Chip operating temperature
  • Critical temperature for ASIC
  • Connector damage
  • Recovery after water ingress
  • Technical damage (burnouts)

Training in taking measurements on the Hash board

Training in taking measurements on the Hash board

1

Control board repair

During training, you will study in detail the structure, the restoration of control in the following sequence:

  1. Web interface (control panel)
  2. Reading logs
  3. Common errors in miner logs
  4. EEPROM firmware training
  5. Replacing the processor on the control board
  6. Soldering resistors, BGA chips
  7. Loss of hashrate (different readings in the web interface and on the pool, more than 10%)
  8. Virus detection and removal
  9. The miner does not produce the required hashrate (⅔) the temperature sensor is triggered

Antminer control board

Antminer control board

1

ASIC device

During the course you will learn:

  • L3+ and S9 structure (all modifications): case, control board, board hash, power supply, coolers, connecting wires
  • The purpose of each node of the control board. Formation of signals by a PWM controller and its receipt by power switches
  • Hash board device. The sequence of distribution of chips by domains from different manufacturers. Passage of the main signals
  • Electrical training. Selection of wire section, circuit breakers 

S9j BITMAIN

S9j BITMAIN

1

ASIC firmware

By studying full-time at Bgacenter, you will learn:

  • Flash ASICs to stock or custom firmware:
  • via web interface
  • via SD card
  • with desoldering the memory chip, then flashing it in the RT809H programmer
  • Remove virus from control board
  • Apply scanner BTC tools
  • Compare popular custom firmwares. Their pros and cons. For what conditions is it better to use custom firmware, and when is it better to stock
  • Learning to upgrade ASICs to other firmware

ASIC upgrade

ASIC upgrade

1

ASIC overclocking

Training on installing custom ASIC firmware from Bitmain: mskminer, VNISH, braiins

The relevance of the installed firmware depends on the operating conditions of the application-specific integrated circuit.

Setting the optimal parameters for the stable operation of ASICs.

Setting the target chip temperature

Preparing an asic for immersion in an immersion bath for:

  • overclocking
  • home heating
  • noise reduction

Removing coolers on the case, turning off the coolers of the power supply

Treatment of power supply capacitors with protective varnish

Setting the immersion mode (disabling cooler checks)

ASIC modernization. Double asic. DUAL mode of operation of 6 boards from one power supply.

How to make one S10 from two S9s. This reduces power consumption and the number of used control boards.

Increasing energy efficiency, ASIC firmware with a decrease in hashrate.

ASIC preparation

ASIC preparation

1

Power Supply Repair Training

The switching power supply is an integral part of the miner that provides the hash of the board and the control board with a stable high-quality voltage necessary for the operation of the ASIC and maintaining the specified HashRate.  

 

UPS recovery training is carried out according to the following algorithm:

  1. Structural diagrams of PSU ASICs
  2. Study of circuit design
  3. UPS Diagnostics
  4. Measurements with a multimeter (voltage), oscilloscope (signals)
  5. Elimination of short circuits and breaks
  6. Replacement of faulty power elements
  7. Turning on the UPS without load, checking the output voltage of idling
  8. Algorithm for testing the power supply of the miner after repair, under load
  9. ASIC maintenance (bolt broaching, cleaning from dirt, cleaning of oxidized contacts, purging with a compressor, drying)
  10. Repair of power supplies after an immersion bath

Miner power supply

Miner power supply

1

ASIC malfunctions

During the training, you will learn typical ASIC faults and how to fix them:

  • asic does not turn on
  • burnout of 6-pin connectors
  • board burnout (current-carrying contacts)
  • dump chips
  • dump of cooling radiators
  • temperature sensor not working
  • chip overheating
  • ASIC cooler error “Fan error” (network problem or fan error)
  • hash board temperature above 80 degrees
  • displaying X in “ASIC#” status
  • chips disappeared from status
  • miner firmware crashed
  • miner can’t find IP
  • short circuit on the hash board
  • power supply not working
  • ASIC overheating due to insufficient cooling
  • mechanical damage during transportation
  • decrease in hashrate by more than ⅔ of the nominal
  • malfunction of coolers (do not spin at all or rotate at low speed)
  • dump hash board
  • 0 asics/chips – miner doesn’t start
  • signals do not pass: SLK, RESET, BO, RI, CO
  • violation of the thermal regime of ASIC
  • broken tracks

Blade of the cooling radiator

Blade of the cooling radiator

 

Control board failure:

  • when the ASIC is turned on, the indication does not work
  • there is no indication of the network card, the miner is not detected by the computer
  • short circuit of integrated circuits and SMD capacitors
  • lack of supply voltage on the board
  • malfunction of microcircuit power stabilizers
  • Flash memory chip failure
  • RAM damage
  • mechanical damage to connectors (burnout)
  • changing the resistance of SMD resistors
  • capacitance loss, change in ESR of electrolytic capacitors

Control board repair

Control board repair

1

ASIC repair equipment

ASIC is an electronic device whose purpose is to “mine” Bitcoin. The tools used to learn how to repair ASICs are also used to repair boards of other electronic devices, but there is specific equipment. The presence of which greatly accelerates the time of diagnosis and the repair itself.

 

ASIC repair equipment used during training:

  • Multifunctional chip tester or modified control board
  • Laboratory power supply 30 Volt 10 Amp
  • Oscilloscope AKIP-4115/4A
  • Multimeter Fluke 17B+
  • Seek Thermal Compact Pro
  • Hot air soldering station Quick 861DE ESD
  • Monoblock PCB heater TERMOPRO
  • Soldering iron METCAL PS-900 or equivalent (power not less than 90 watts)
  • Programmer RT809H or PICKIT 3.5
  • “Spoof” for the Antminer fan
  • Mat antistatic heat-resistant
  • Stencil for BM1485 and BM1387B (required for transferring Bitmain chips)
  • Desoldering pump
  • Tweezers straight, curved
  • Metal spatula (for removing hot melt residue from the surface of the microcircuit)
  • Flux Flux-Plus 412
  • Rose alloy (melting point 183 degrees Celsius)
  • Gootwick copper braid, 1, 2, 3 mm wide
  • Falcon 530 Board Cleaner
  • Toothbrush, cotton swabs for cleaning the board after soldering
  • Hot glue vinyl or Poxipol, for installing heatsinks on a chip
  • Tin-lead solder POS 40
  • BGA paste (melting point 183 degrees Celsius)
  • Diagnostic wires

Training in the use of measuring instruments

Training in the use of measuring instruments

Course duration 7 days

Sign up for a course or get a free consultation

Start: 30 May
There are: 1 places

Your result after training

What you will learn in the power supply repair courses:
  • Restore conductive tracks on a hash board
  • Solder connectors
  • Repair ASIC
  • Capture and decrypt logs
  • Remove viruses
  • Perform chip replacement
  • Troubleshoot ASIC switching power supplies
  • Diagnose and repair control boards
  • Flash ASICs Antminer
  • Detect faulty chip by test point

Reviews of graduates

Обучение пайке

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Chamit

BGA Reballing Training

Zack

Sign up for a training or get a free consultation

Start: 30 May
There are: 1 places
The cost of training
59000 rubles
76000 rubles
Study now, pay later!
Take the training in installments or on credit. The installment plan is available in equal installments for 4 and 6 months, without a down payment. You can find out the terms of the loan by filling out the form by clicking the button

FAQ

I live in Angarsk looking for a mining equipment repair school in Siberia. Do you provide ASIC repair training in Irkutsk?

At the moment, courses on restoring hash boards from Bitmain L3 +, S9 and the seventeenth series are being held in St. Petersburg, at an electronics repair service center. People from Irkutsk and the Irkutsk region often come to Bgacenter to learn ASIC repair.

Which manufacturers of mining equipment do you teach to repair?

At the moment, training in the repair of ASICs S9 of all modifications and L3 +. Soon we will add to the course such ASIC miners as:

  • Antminer S17, S17+, S17Pro, T17
  • Innosilicon T2t, T2ti, T2tz
  • Whatsminer M20, M20S, M21S, M31S

As well as soldering chips: BM1397AD, BM1397AG, BM1398B

Interested in learning to repair ASICs in Moscow. Do you have a branch in MSC?

ASIC repair training in Moscow is possible. Now practical classes are held in a service center in St. Petersburg. When recruiting a group of 10 people or more, the Bgacenter teacher travels to the region, with equipment and the necessary tools.

Can you get ASIC repair training online?

We believe that only full-time education gives results! That is why people come to Bgacenter for courses from different cities of Russia; for example from Novosibirsk, Miass, Yekaterinburg and Moscow.

 

I want to be trained in ASIC repair in Miass. Do you offer a miner repair course in the Chelyabinsk region?

We recommend training in ASIC repair in St. Petersburg. We do not yet have a representative office in the Chelyabinsk region. Additionally, at Bgacenter you can learn how to restore switching power supplies for miners.

Asic does not start, what should I do? Where to start miner repair? Can you teach me how to troubleshoot such problems?

On the course, you will learn the main malfunctions of miners and how to fix them. If the ASIC does not start, you must do the following:

  • check the availability of power from the UPS
  • make sure the control board is working
  • one by one check each hash board for operability
I want to take ASIC repair courses. How long does the training take?

The duration of the ASIC diagnostic and recovery course is from 7 to 14 days. It depends on your initial knowledge in electronics repair. If you have not previously dealt with the repair of electronic devices, we recommend a course that lasts 14 days. And if with a multimeter and an oscilloscope “for you”, then 7 days will be enough. You choose.

Does your service carry out ASIC repairs?

Yes. Bgacenter is an operating miner repair service. We restore ASICs, hash boards, control boards and APW power supplies. If you have equipment that needs repair, please contact the Bgacenter administrator.

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