How Your PC Powers On: The Secret Behind the Motherboard Boot Process! - Part 3

Video Description

Ever wondered what happens when you press the power button on your PC? In this video, i will break down the entire power-on process of a modern desktop motherboard. This complex process happens in just a few seconds, but there's a lot going on behind the scenes! Watch the full breakdown to learn how your PC wakes up every time you turn it on. Download PDF presentation: buymeacoffee.com/fixmyapp/e/374559 Playlist: https://www.youtube.com/playlist?list=PLxYccMa3BuJbQKbsmDuscNFj8ikY2yxDZ #PCBootProcess #HowComputersWork #TechExplained #Motherboard #PCBuild ▬ Contents of this video ▬▬▬▬▬▬▬▬▬▬ 01:56 - Pressing the power button 03:11 - Power button signal 04:54 - SLP_S3 and SLP_S4 signals 07:35 - PS_ON# 10:01 - VCC power on 10:59 - CPU power 11:09 - ATX power ok 12:14 - SYS power ok 15:35 - PCH clock 17:10 - USB power controller 20:04 - Rear USB power 21:32 - Front USB power 21:59 - 5VDIMM 24:52 - VPP_EN 26:29 - VPP25 28:01 - VCC DDR 31:32 - VCCSFR_OC_EN 33:02 - VCCSFR_OC 33:39 - VTT DDR 35:53 - VCCIO 38:02 - VCCSA 41:31 - VGTX 42:06 - SVID and ALERT# 45:11 - VRM_EN 47:46 - VCORE CPU 51:30 - VGTX core 54:06 - PCH_PWROK - PCH power ok 56:44 - CPU_PWRGD - CPU power good 57:42 - DRAM_RESET# - Ram reset 59:37 - PLTRST# - Platform reset 01:03:16 - CPURST# - CPU reset 01:06:04 - All voltages and resistances 01:06:22 - 24PIN ATX resistances 01:07:19 - +12V CPU resistances 01:07:41 - General troubleshooting 01:13:52 - Programming BIOS with CH341A 01:14:56 - Troubleshooting 2 input AND gate IC 01:15:44 - RAM memory troubleshooting 01:16:39 - 24PIN ATX power regulator 01:17:46 - RAM memory slot analyser 01:18:18 - PCIE LPC Diagnostic Analyser 01:22:11 - LPC headers pinout 01:22:41 - LPC headers from different manufacturers