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The fact that you have two different Vout values on the pins that should be joined is sort of worrisome, but it's probably just a flaky reading. You've got the power good signal coming out, so that one is probably OK.1 Gnd ok
2 Fb 0.8v
3 Vout 0.8v
4 Vout 1.78v
5 vin 3.3v
6 vcntl 5v
7 pok 3.1v
8 en 3.3v
Just out of curiosity is it possible to jump the enable single?The fact that you have two different Vout values on the pins that should be joined is sort of worrisome, but it's probably just a flaky reading. You've got the power good signal coming out, so that one is probably OK.
Try to look up datasheets for each of the ICs that is still unidentified. Look for the ones that are either low dropout regulators or buck controllers, and then check each of those circuits for operation. If you still strike out, you're going to need to figure out where exactly the enable signal for your memory rail comes from, and then work your way back through the card until you find something that should be working, but isn't.
Yes, but it's not always advisable. In this case, the fact that we're missing the memory enable signal is a symptom of some other problem, so while we might be able to get the memory rail working by just feeding it a voltage from somewhere, that wouldn't necessarily help us if whatever mechanism it's supposed to wait for isn't working.Just out of curiosity is it possible to jump the enable single?
hey I have that same graph damaged, do you think I can replace the 78m05 with the 78d05alI have test regulator and 2 fuse and it s ok.
Where is 3.3v rail and 7v rail?
Thank you
I have the same problem in the NPC5230 enable, do you know where the enable signal comes fromhey I have that same graph damaged, do you think I can replace the 78m05 with the 78d05al