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found the problem! masking with uv only pp3v3_s3-mini pins on wifi card, the computer boots fine! but the line is not short! and has a good value (0,630)

with cpu installed, injecting 1v on pp1v5_s0_cpu_mem when cpu (no ram or vga) is installed. in this scenario, diode value on this line is 0,054 as soon as i remove the cpu, i have 0,180 and no amp drow injecting voltage on the line. i've also discovered that i have a small amp draw (0,0036) on...

yeah sorry, amps!

i repeat, is it normal an amp draw of of 0,022v on line pp1v5_s0_cpu_mem ?

fixed! even with good values, two traces from u5870 were broken to the thermistor!

please help :(

i'm goinh crazy! i've again error for the fan on aht,even if the fan works during the test, at full speed. the system is super slow but the fan doesn't spin at all (like always happen when there error of sensors) the system is totally unusable....i try to start application but never starts

0i've changed the trackpad flex: still the same errors :(

yes fan problem fixed....but still super slow without webcam cable.. i dont understand how can it be possible a problem on the webcam...(ndc001) i hope to fix ppn001 and pfm006 with new trackpad flex

as soon as i connect the heatsink, i have an amp draw on pp1v5_s0_cpu_mem. as soon as i remove the heatsink i have no ampdraw

no i don't! is it possible that a cpu can create this problem? i repeat: macbook boot without wifi card!

i've installed a new fan and changed u5870 from donor i have 3 errors : ppn001 pfm006 (smc) and ndc001 (webcam) power button doesnt' work at all

yes, all meaurements without ram

i've found u5870 oxided. removed cleaned reinstalled. still the same...maybe should i change it?

hello! please help me! motherboard with liquid spill no boot i directly changed q1840 q1842 r1831 r1835 and r1810... just because i've seem that it has booted, i gave it back to the client he says that it is unusable because it is super slow. and i confirm it....it 's ultra slow ...i don't...

i don't understand what i'm doing wrong

i'm going crazy, i've removed r5300 and now on pin 6 i have 0,480.... the low value remain on pp1v5_s0_cpu_mem (0,054) i've removed r1120/r2968/r5301 but i still have an amp draw of 0,022v injecting 1v i don't know if it is normal, but in pp3v3_s0, even with a good diode measurement, i have...

i made a mistake: motherboard is 820-3126

without card. i have another imac with a similar board, and the value it's normal (like 0,550)

pin 6 has super low value (0,043), if i inject 1v i have 0,032 draw