Outils et équipement de réparation ASIC : le kit d’établi

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Voici le kit d'établi de réparation ASIC — les 15 outils que le flux de réparation de D-Central mobilise, ordonnés par étape (de l'inspection visuelle aux mesures diode au multimètre, l'oscilloscope, l'imagerie thermique, la refusion à air chaud et le rebillage, jusqu'au flashage EEPROM/PIC et à la remise en route). Chaque outil liste sa spécification recommandée, son usage, l'étape de réparation, un niveau de compétence DIY-vs-atelier (7 sont accessibles en DIY) et une fourchette de coût approximative en CAD, pour bâtir le kit dans l'ordre où vous en avez réellement besoin.

Commencez simple et DIY : un bon multimètre avec mode diode, un programmateur EEPROM CH341A et un adaptateur USB-TTL diagnostiquent la plupart des pannes pour moins de deux cents dollars. La refusion à air chaud, le microscope stéréo et le rebillage BGA sont de niveau atelier — vraie compétence de micro-soudure, facile d'empirer une carte; entraînez-vous sur du rebut d'abord, ou envoyez la carte à un atelier. Une référence, pas une garantie; les prix varient selon le fournisseur. Les données par outil sont conservées en anglais.

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Outil	Spécification recommandée	Étape	Niveau	Coût (CAD)
USB microscope Inspect pads, solder joints, bridges, flux residue and BGA alignment	200x+ magnification	visual	DIY	~$40-150 CAD (approx, varies) Fine for inspection; for actual rework a stereo microscope is preferable, but a 200x USB scope is enough to look.
Anti-static mat / wrist strap ESD protection for boards and ASICs during handling and repair	Grounded ESD mat + wrist strap (grounded workstation)	visual	DIY	~$20-60 CAD (approx, varies) Cheap insurance against static-killing a good chip; verify the strap is actually earth-grounded.
Digital multimeter Rail voltage checks, domain/LDO impedance-to-ground tests, diode-mode chip checks	Fluke 15B+ or better; voltage/resistance + diode mode	unpowered-multimeter	DIY	~$60-200 CAD (approx, Bible lists no price) A real diode mode and reliable low-ohm range matter more than the brand; basic meters cover most checks.
Oscilloscope Confirm 25 MHz CLK square wave, decode UART 115200 8N1, check I2C signal integrity	100 MHz+ bandwidth, 2 channel, fine-tip probes	powered-scope	Intermediate	~$400-1,500 CAD (approx, varies) Bandwidth and channel count are the spec; entry 100 MHz 2ch scopes suffice.
Thermal camera Map heat distribution to find hot/cold chips and heatsink/thermal-paste failures	FLIR C5 or similar; 160x120 resolution minimum	thermal	Intermediate	~$600-1,200 CAD (approx, varies) Resolution (>=160x120) matters more than brand; phone clip-on thermal modules are a budget entry.
Soldering station Hand soldering of LDOs, capacitors, connectors and solder-wick cleanup	Hakko FX-951 or similar; temperature-controlled	hot-air-rework	Intermediate	~$150-400 CAD (approx, varies) Temperature control is the key spec; FX-951 is widely cloned, so buy from reputable sources.
Hot air rework station BGA ASIC chip removal and reflow at a controlled temperature profile	Quick 861DW or similar; controlled profile 350-380 C	hot-air-rework	Bench	~$400-900 CAD (approx, varies) Stable airflow and temperature control are essential; avoid cheap pencil-style heat guns for ASIC reflow.
Thermal paste / gel Reapply between ASIC die and heatsink after any heatsink removal	Fujipoly SPG-30B thermal conductive gel	hot-air-rework	DIY	~$20-50 CAD (approx, varies) Bible names Fujipoly SPG-30B specifically; reapplication is mandatory after heatsink removal or chips thermal-shutdown.
Flux and solder wick Wet joints for reflow and clean pads after chip removal	No-clean flux + solder braid/wick	hot-air-rework	DIY	~$15-40 CAD (approx, varies) Essential rework consumable; clean flux residue afterward to avoid corrosion and shorts.
BGA reballing kit Re-ball salvaged or replacement ASICs before reflow	0.4 mm lead-free Sn/Ag/Cu solder balls + reballing jig/stencil	reballing	Bench	~$30-150 CAD (approx, kit cheap, skill costly) Ball size (0.4 mm) must match the package; reballing is a high-skill microsoldering step.
EEPROM programmer Read/clone/write hash-board EEPROM so all boards in a miner match	CH341A (generic) or dedicated EEPROM cable/tool	eeprom-flash	DIY	~$10-40 CAD (approx, varies) CH341A clips are cheap; the real risk is writing wrong or mismatched data, not the hardware cost.
PIC programmer Read/reprogram PIC calibration data (frequency/voltage) on S19-series boards	Microchip PICkit3 (for PIC16F1704 on S19 series)	pic-program	Intermediate	~$50-120 CAD (approx, varies) Only S19-series boards use the PIC; correct model/revision firmware is required to flash.
Bench power supply Power a hash board off-miner for bring-up and load/hash testing	50 A capable (for standalone hash test)	bring-up	Intermediate	~$200-800 CAD (approx, varies) High current (>=50 A) is the spec; under-rated supplies sag under hash load and produce false failures.
USB-to-TTL adapter Serial console to the test fixture or board for diagnostic log viewing	CP2102 or CH340 based; 3.3 V logic, 115200 8N1	bring-up	DIY	~$5-20 CAD (approx, varies) Use a 3.3 V (not 5 V) adapter; counterfeit CH340/CP2102 chips may need specific drivers.
Hash-board test fixture / multi-tester Standalone PT1/PT2/PT3 testing (chip enumeration, pattern, frequency sweep); pinpoints the failing chip	Bitmain official fixture (V2.1/V2.3) or third-party ARC / STASIC / K3L-K8	bring-up	Bench	~$1,500-4,000+ CAD (pro, approx) Pro-shop gear; ARC/STASIC reportedly cut repair time ~6x vs manual but model coverage varies, and STASIC hash-sim needs a 50 A PSU.

Source : la Mining Bible D-Central (HASHBOARD_DIAGNOSTICS) + l'atelier de Montréal. Se combine avec le service de réparation ASIC, le guide du multimètre et la référence des puces ASIC. Nous stockons une partie de cet équipement sous outils. Une référence, pas une garantie.

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Dernière révision: 26 juillet 2026.