: Includes standard 3.3V and 5V power states necessary for the board to initiate the boot process. Input/Output Interface : The schematic details the connections for: SATA and M.2 storage interfaces. LCD display via eDP (Embedded DisplayPort). Peripheral ports like USB 3.0, HDMI, and Ethernet. Common Diagnostics & Issues
The is more than a PDF file; it is the definitive reference for reviving dead motherboards. Without it, you are flying blind into a sea of tiny capacitors and black epoxy. With it, you can logically isolate whether your fault lies inside the charger IC, the VRM controller, or the Embedded Controller. La-e791p Rev 2.0 Schematic Diagram
Ensure the BIOS (Main + EC) is functional, as corrupted firmware can prevent the motherboard from initializing. Resources & Downloads : Includes standard 3
| Rail Name | Voltage | Max Current | Controller IC (Typical) | |-----------|---------|-------------|--------------------------| | +VIN (DC-in) | 19.5V | 3.25-4.5A | BQ24780S (Charger) | | +3.3V_ALW | 3.3V | 2A | TPS51285 or SY8288 | | +5V_ALW | 5V | 3A | TPS51285 or SY8288 | | +VCC_CORE | 0.65-1.35V | 25A+ | NCP81215 + DrMOS | | +VCC_GT | 0.65-1.25V | 15A | NCP81215 (Phase 2) | | +1.8V_PCH | 1.8V | 1.5A | SY8286 | | +1.05V | 1.05V | 3A | SY8288 | Peripheral ports like USB 3
The LA-E791P Rev 2.0 schematic details a modern architecture centered on power efficiency and integrated components: CPU/Processor : Supports Intel Sky Lake-U processors. : Designed for DDR4 SO-DIMM : Features the AMD R17M GPU paired with DDR3L VRAM Storage & Connectivity