23/05/2026
β
SUCCESSFUL REPAIR β ASUS TUF Gaming Motherboard
Date: Saturday, May 23, 2026
Multiple Problems Found: β
* Motherboard completely dead not responding
* No led lights
* Standby voltages are alive
* SIO not asserting power on sequence
* Charging IC's resistor VCC burned and cause voltage drop
Findings: π¬π
* PCH chip not responding, failing to drop SLP_S3 #/SLP_S4 # signals needed for wake transition.
* SIO controller detected button press but did not assert PS_ON # due to missing sleepβstate handshake from PCH.
* 32Khz Crytal solder pads are broken and needed Pad repair
*Cmos battery slot missing and broken pads.
* Voltage Drop on the charging ICs VCC section due to burned 22ohms Resistor.
Actions Taken: π οΈ
* Replaced defective PCH chip with a new unit (SR40B)
* Replaced and reprogrammed SIO controller with correct firmware
* Repair all Broken Pads
* Replace burned VCC (22 ohms) resistor on the Charging IC section
* Replace Cmos bat slot and repair its Solder pad
Result: βοΈ
Motherboard powers on successfully β
π Thank you for trusting NanoCure PC Clinic with your motherboard repair.