A1418 2012 820-3302-A chimes continuously with blanc white screen with no image

Melamanti

New member
Sometimes it chimes once and it stays in white screen with no image and some times it chimes continuously. I have tried another cpu and another bios but still no change. Any ideas?
 

2informaticos

Administrator
Staff member
Do few PRAM resets first.
Reseat DDR modules.
Try one known good module at a time; every DDR slot.
Disconnect power button and CMOS coin cell.
Check if something change; should start automatically.
 
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