820-00239 cd32 spill

TBFix

Member
I replaced the cd32 and now get 20.5v 620ma no display or usb activity then it drops to 540ma. Cpu gets warm.
Im not familiar with these boards . Where to start?
 
Last edited:

2informaticos

Administrator
Staff member
Very likely the board doesn't boot.
You should see some changes on VCORE, when it does.

Try known good BIOS, clean ME.
 

2informaticos

Administrator
Staff member
I'm not sure on this board, but other boards (00840/875) I saw VCORE changing values, 1.1V-0.9V-0.6V.

I don't have tested BIOS for this board yet...
 

TBFix

Member
Should I be getting voltage on L7410/7420/7430 ?. I have tried a couple of different efi files but still same.
 

TBFix

Member
I found one that supposedly tested 100% but now the unit draws 550ma then drops to 450ma with the same result ie no usb activity and no external or lcd output.

I dumped the original bios 2 times as I usually do and when I write it back now the unit only draws 120ma. I also noticed that l4901 was missing (From U4900 section) so I replaced it but still the same.
 

TBFix

Member
Possibly but it looks like it was broken off rather than desoldered. I have gone over the board with the microscope and I cannot see any other issues.


Here is the original dump if you could look over it if you get a chance and if you could clean the me region I would appreciate it
 
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