Intel DG31PR Case1
Posted: Fri Dec 22, 2017 3:37 pm
Problem = no display.
debug card shows no clock. Also PCI slot B16 was showing zero volt which confirms clock circulated issue. Upon inspection a coil which supplies 3.3v to clock is found to be open. A coil is mostly used as a fuse in motherboards. An open coil means something on the output side is either fully or partially short. My suspicion was right and i found a shorted ceramic capacitor. Replaced both the coil and capacitor. Display came and case done.
debug card shows no clock. Also PCI slot B16 was showing zero volt which confirms clock circulated issue. Upon inspection a coil which supplies 3.3v to clock is found to be open. A coil is mostly used as a fuse in motherboards. An open coil means something on the output side is either fully or partially short. My suspicion was right and i found a shorted ceramic capacitor. Replaced both the coil and capacitor. Display came and case done.