
Laptop Parts (MacBook & iMac)

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Apple · SKU IP71275 · Fits 1 model
$30.39
per unit| Quantity | Unit price | Saving |
|---|---|---|
| $30.39 | ||
| $28.87 | −5% | |
| $27.35 | −10% |
Shipping weight 0.01 kg
Match the model number printed on the device (Settings → About, or on the back) before ordering.
The base 14-inch MacBook Pro with the M3 chip arrived in late 2023. Like other Apple silicon laptops, it depends on a handful of Apple power chips around the processor, and one failing can leave the machine dead on the charger or stalled at a low current draw.
This listing sells the Apple 343S00637 power IC, a 420-pin BGA, for the MacBook Pro 14-inch A2918 (2023, M3). The listing calls it a MacBook 14 and doesn't give a board position or say which rails it handles.
No power-on with a known-good charger.
Low, stuck current with missing rails.
A short traced to this chip.
Corrosion after liquid.
Look for shorted capacitors first, since they're the most common cause of missing rails on these boards. Then confirm the chip's inputs and outputs before replacing a 420-pin BGA, which needs a preheater and careful pad preparation.
After fitting, check the rails and test boot, charging and the display before closing the case. Run the machine under load for a while to confirm it stays stable.
| Condition | New |
|---|---|
| Part type | Power management IC |
| Part number | 343S00637 |
| Package | BGA |
| Pin count | 420 |
| Compatible devices | MacBook Pro 14-inch M3 (2023) |
| Model numbers | A2918 |
The MacBook Pro 14-inch A2918 with the M3 chip, from 2023.
420, in a BGA package.
The listing names A2918 with M3 only.
The listing doesn't say; check your schematic.

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