This motherboard is predominantly found in series (specifically models like AN515-54, AN517-51) and some high-performance gaming laptops from 2019–2021. It utilizes Intel’s Coffee Lake-H (i5-9300H, i7-9750H) and sometimes Comet Lake-H processors paired with NVIDIA GTX 1650, 1660 Ti, or RTX 2060 graphics.
| Component | IC Part | Location | Function | |-----------|---------|----------|----------| | PU4601 | SY8288B | Near DIMM slots | DDR4 +1.2V | | PU4801 | SY8286C | Near PCH | +1.05V PCH/VCCSA | | PU4701 | NCP81215 | Near CPU | VCC_CORE (2-phase) | | PU4702 | NCP81215 | Near CPU | VCC_GT | | PU5001 | TPS51285B | Near DC jack | +5V_ALW / +3.3V_ALW |
| Rail Name | Derived From | Voltage | Description | |-----------|--------------|---------|-------------| | +3VLP | Always from DC_IN | 3.3V | LDO for RTC/EC | | +5V_ALW | +3VLP enable | 5V | Always-on for EC/BIOS | | +3.3V_ALW | +5V_ALW | 3.3V | Always-on logic | | +1.8V_ALW | +5V_ALW | 1.8V | PCH ALW power | | +VCC_CORE | After SLP_S3# | 0.6V-1.35V | CPU Core VR | | +VCC_GT | After VCC_CORE | Variable | Graphics VR | | +VCCSA | After VCC_CORE | 1.05V | System Agent | | +1.2V_DDR | After SLP_S4# | 1.2V | DDR4 memory | | +VCCIO | After SLP_S3# | 0.95V | I/O power |