Antminer L3+ Common Spare Parts
L3+ Hash Board
Common spare parts and where to find them!
Power Header
These are Molex 0.156″ 2×3 right angle sockets, Molex 39-30-1060.
14.2V External Booster
In the end of the day it’s best to repair with an external booster circuits. Ebay also has several boost circuits to choose from. (* NOTE – Some users have experienced the buck converter frying on the MT3608 external board when setting the voltage. Per the manufacturer, before applying power for the first time, turn the output voltage adjustment screw 20 full turns counter clockwise (CCW). If you don’t do this there’s a good chance the module will be damaged when power is applied.)
TMP451 Temperature Sensor
U87 (U88 on V1.6) is a T451/TMP451 temperature sensor.
16LF1704 PIC
U3 (U74 on V1.6) is a 16LF1704/5 8-bit microcontroller PIC.
BM1485 Bitmain ASIC
There are a total of 72 BM1485 ASIC’s on-board the L3+ hash board. Check out eBay for this item.
1.8V LDO (Voltage Regulator)
Version 1.5 and earlier hash boards use SPX5205M5-L-1-8 1.8V voltage regulator (pkg SOT23-5)
Version 1.6 hash board use LN1134A182MR 1.8V voltage regulators (pkg SOT23-5L)
Some versions of the hash board have also used the SGM2202-1.8 (pkg SOT23-5.)
10V Buck Controller
Hash board versions earlier than 1.5 used a LM27402 synchronous buck controller and on versions 1.5 and later it is a uP9305W synchronous buck controller
NPN Transistor
Q10 is a MMBT3904 NPN general purpose amplifier.
MOSFET N-Channel MOS
Three of the THPR9003NL MOSFET N-Channel Switching Regulator is used to regulate the 10V Buck Controller output.
L3+ Control Board
Common spare parts and where to find them!
Data I/O Cables
Data cables used to connect the I/O board to the hash board.
Power Connector
2×3 Male Socket power connector.
Data Connectors
Control board data connectors for ribbon cable attachment to the hash board.
Replacement Control Board
Sometimes it’s just easiest to replace the whole thing.
L3+ Unit Spare Parts
Spares for the unit as a whole
12V Fan
Bitmain replacement fan (OEM or equivalent.)
Fan 4″ (120mm) Duct / Shroud
This 4″/120mm shroud attaches with your fan’s machine screws to allow you to attach 4″ flexible ducting to run the air through.
240V/15A Power Cord
NEMA 6-15P – Rated up to 15A 250V compatible with the APW7 and APW3+ as well as other power supplies that require 240V.
240V/15A Power Cord Splitter
2FT Power Splitter Cable – C14 to 2X C13 NEMA 15A 300v 14AWG allows you to run two power supplies off one power cord..
APW7 Power Supply
The APW7 is an upgraded version of the APW3+ and supports 120V and 240V.