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820-3476 crashes

R

Revive

Member
Fairly clean board no visible liquid damage or corrosion, would crash under certain loads.
Running OS ASD162 it crash's (shuts down) the moment it gets to Sensor Group (test #5) every time.
Running EFI ASD162 would show IB0R and IPBR failures and finish the tests without crashing.
I replaced U5580, C5580, R5429 and C5429 and reflowed the SMC.
Now running EFI ASD I get no failures but it still crashes in the same spot running OS ASD.
Any ideas where I should go from here?
 
D

dukefawks

Administrator
I do not see how the components you touched relate to the reported error. Both errors would be caused by the current sense circuits of the ISL6259. I bet corroded resistor/trace around there.
 
R

Revive

Member
I guess those were the only associated components I found when looking at the schematics, I replaced the ISL6259, checked all the surrounding resistors and they're within range (the area looks clean). Still same crashing issues.
It's able to complete the Cinebench CPU test but crashes immediately when running the Open GL test.
 
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