Diagnostic Index
Identify Your Failure: 24 Critical Motherboard Symptoms We Solve at the Component Level.
Asus
Dell
Lenovo
HP
Gaming
Mini PC
Workstation
| Symptom | Device Context | Component | Severity |
|---|---|---|---|
Total Power FailureNo signs of life, no charging LED. |
All Brands | 19V Main Rail | Critical |
Liquid DamageErratic behavior following contact with fluid. |
All Brands | Multi-Component | Critical |
Graphics ArtifactsVisual glitches or geometric distortion. |
Gaming | GPU / VRAM | High |
CPU Throttling (0.8GHz)Permanent performance drop. |
LenovoDell | BD PROCHOT | Medium |
USB Port DeathData failure on integrated ports. |
AsusMini PC | PCH / Chipset | Medium |
Infinite Boot LoopRestarts immediately at brand logo. |
Mini PC | BIOS / SPI Chip | Medium |
Plugged In, Not ChargingPower detected but battery levels drop. |
HPDell | Charging IC | Medium |
WHEA Blue ScreensUnpredictable hardware-level crashes. |
Gaming | MOSFETs / Rails | High |
No Post / Black ScreenLights are on, screen remains dark. |
All Brands | RAM Rail / CPU | High |
Burning SmellAcrid odor during or after operation. |
All Brands | Capacitors | Critical |
Sudden ShutdownTotal power loss under heavy load. |
Gaming | Power Stages | Medium |
Jet Engine FansFans at 100% despite zero heat. |
HPMini PC | EC / Thermal Bus | Low |
Trackpad/Keyboard FreezeInput stops working intermittently. |
AsusThin-and-Light | PCH / Flex Cable | Medium |
Thunderbolt Port DeathNo display or data out of Type-C. |
LenovoDell | Thunderbolt IC | High |
WiFi DisappearingWiFi option missing from OS entirely. |
AsusGaming | PCIe Lane / PCH | Medium |
No Audio / Dummy OutputNo audio hardware found in settings. |
HPLenovo | Audio Codec IC | Low |
Dim Screen (No Backlight)Image only visible with external light. |
All Brands | Backlight Fuse | Medium |
POST Code BeepsAudio beep codes during startup sequence. |
DellHP | RAM / CPU VCore | High |
Wrong Date/TimeClock resets on every power cycle. |
All Brands | CMOS Battery / RTC | Low |
Power LED BlinksVisual flashing error codes. |
DellLenovo | Memory Training | Medium |
Webcam Not FoundIntegrated camera missing from system. |
AsusHP | Hinge Flex / LDO | Low |
Charging Port SparkingVisible arcs when connecting power. |
All Brands | DC Jack / MOSFET | Critical |
Broken Solder JointsWorks only when physical pressure applied. |
Mini PCThin-and-Light | CPU / RAM BGA | High |
Coil WhineElectrical screeching from board. |
Gaming | Inductors | Safe |
Identify your issue?
Most motherboard failures are fixable at the component level. Our precision soldering services resolve mose hardware issues without the high cost of a full motherboard replacement.