Lah931p Boardview May 2026

is the motherboard model for the Dell XPS 13 7390 laptop. Boardview and schematic files for this motherboard are essential for identifying specific component locations and trace paths during complex hardware repairs. Available Boardview & Schematic Resources

• Location: Below the CPU socket or towards the middle.
• Function: For installing graphics cards, which are essential for gaming and graphics-intensive applications.

Issue 1: No Power, No LED (DC-in Failure)

• Symptom: The laptop doesn't respond to the charger.
• Boardview use: Search for the DC-in MOSFETs (e.g., PQ101, PQ102). Use the net highlight to trace VIN to the charging IC (PU101 – often a BQ24780S). Instantly see which resistors form the voltage divider for ACDET. Find PR101 and PR102 quickly.

• Is lah931p a board model number, a PCB P/N, or an HP/Dell/Lenovo board number?
• Common examples: LA-H931P is often related to HP or Acer laptop motherboards (e.g., Quanta LA-H931P rev: 1.0 / 2.0).