For $29/mo, we provide access to advanced level technicians who will answer your questions on any Macbook board related matter to the best of their knowledge promptly & walk you through how to solve your problem so you can deliver a working board to your customer.
Good morning, this mac had 1V on the PPBUS, I checked the u7100 terminals 27/28 had high resistance, then I changed the resistors and the u7100, the PPbus is now 12.56V, but the mac won't turn on.
PM_PCH_PWROK 0V, pulse...
This mac suffered oxidation in the U9300, UB300 and Q9401 region, where the u9300 was shorted, I took it out and tested it, but it doesn't show PPBUS.
Voltage: PPbus 0V; PP20V_USBC_XB_VBUS_F 0V; PPDCIN_G3H 5.116V shows oscillation; PP3V3_G3H 3.4V; LDO rails showed ideal values in diode mode...
Hi, this imac has been repaired the USB ports, when it turns on after a few seconds it starts to speed up the fan.
In HWmonitor shows that the fan of the ODD this accelerated and 128 Degrees GPU heatsink. How can I identify which sensor is causing this?