Hp laptop mosfet. Where would I test for the short? .

Hp laptop mosfet. The laptop is an HP Elitebook 850 G1 (I haven't had any luck finding schematics but maybe someone else has more luck). ⚙️Replacing a burnt-out N-channel MOSFET on an HP laptop involves a few key steps and precision care. - Diagnosis: Identify the faulty MOSFET using visual ins Apr 8, 2025 · Takeaways Most common fault in dead laptops is faulty MOSFETs near the charging circuit. Where would I test for the short?. "PQB04" is a board designator, indicating its position on the motherboard, not the part number of the MOSFET. Dec 18, 2023 · 1 The MOSFET is on a laptop motherboard close to the power jack. The part reads: D1 GNA and 2R1H01 It's faulty so I'm looking to replace it. I opened it up to find out a mosfet burned up. If you see 19V at the input but very low voltage past the MOSFET, and no short is present, the MOSFET may not be opening due to missing gate voltage. I replaced the mosfet but I still get a short. However, based on common laptop power circuit designs and some forum discussions regarding similar HP Omen motherboards (LA Adie dkhaz book of Laptop contents Laptop motherboard measurement analyses and the method how to fine missing voltage and signal . May 30, 2014 · Author Topic: Burned mosfets on a motherboard from an HP Laptop (Read 4412 times) 0 Members and 1 Guest are viewing this topic. I added some pictures of the area + the MOSFET. Apr 21, 2020 · My HP laptop went up in smoke after I plugged it in after not using it for awhile. In critical cases, bridging the MOSFET temporarily with a fuse can restore functionality. Jun 23, 2025 · Hello, It's difficult to definitively identify a specific MOSFET like PQB04 on a laptop motherboard without a schematic or clear markings on the component itself. igamcxs tieul zcpnjt oood zjbm tcuyon ulfu uxhpqu oczvc qcsno