Clock and reset: why “almost alive” boards still fail

Short English overview of clock and reset paths (paraphrased teaching outline for laptop boards). Clocks you may meet - 32.768 kHz RTC, 24/25/38.4 MHz platform clocks, CPU/PCH references, and discrete GPU references on higher SKUs. - A missing crystal or buffer can stop POST even when main VRMs measure fine. Resets - Power-on reset, EC reset, PCH/CPU reset release — sequence matters. A rail that never reaches power-good keeps reset asserted. Method - Confirm rails → confirms enables → then clocks/resets with a scope. - Use BoardView to find crystal footprints and reset pull-ups quickly. Post your board PN and which clocks you already probed when opening a thread.