820-4924 Beep RAM

iClub

Member
I did reballing the 4 memories, in the tests it worked normally, but after almost a day the mac turned off and presented a memory beep.
. Tell me it's not CPU. :(


Voltage: L7430 0V.
 

2informaticos

Administrator
Staff member
Seems that you do not understand the difference between diode mode and voltage range of multimeter.
0.133 on diode mode is correct value.

Post U7400 voltages; pins 12, 16, 17, 6.
 

iClub

Member
It was measuring with the board out of the housing, it was giving 0V in the L7430, now I measured in the coil is giving 1.2V.
I imagine it is CPU, because I made reball Memories ?
 
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