george-a
Member
Hi guys,
this one came with LD which was almost invisible except some patches here and there.. I UC and the board started but would not detect the SSD drive.
I connected a USB boot drive and started from there without issues until the system shut down before completely booting and is in boot loop ever since.
I measured Y1905 and that is getting 0.9 to 1V and also all necessary voltages seem to be present at U1900 but I cant measure 32Khz neither 25MHz coming from the chip.. the oscilloscope shows some irrelevant readings which jump around but not steady frequencies... also pins 15 (SYSCLK_CLK25M_TBT) and 16 looked a bit dodgy ...not shiny like the rest.
BIOS chip area looks good, power comes to pin8.
Could it be the clock chip since its so sensitive to water damage?
george
this one came with LD which was almost invisible except some patches here and there.. I UC and the board started but would not detect the SSD drive.
I connected a USB boot drive and started from there without issues until the system shut down before completely booting and is in boot loop ever since.
I measured Y1905 and that is getting 0.9 to 1V and also all necessary voltages seem to be present at U1900 but I cant measure 32Khz neither 25MHz coming from the chip.. the oscilloscope shows some irrelevant readings which jump around but not steady frequencies... also pins 15 (SYSCLK_CLK25M_TBT) and 16 looked a bit dodgy ...not shiny like the rest.
BIOS chip area looks good, power comes to pin8.
Could it be the clock chip since its so sensitive to water damage?
george