Question PC wont post just black screen.

Aug 26, 2021
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So my pc won't boot up (blackscreen but the fans are spinning) after I change ahci to ide. So then I reset the CMOS by taking out the battery for 24 hours. Then I put it back same thing happen (blackscreen fan spinning). So then I unplug everything (hard drive, ram, CPU, gpu, etc) and rebuilt it. Still no screen (but fan are spinning). Then I suspect it's my hard drive. So I completely format my ssd from my other laptop using external adapter. Then put it back. Still no screen (fan go spin still).

None of them worked for me. I believe it's just that my CPU was fried. Or it's not because I only changed ahci to ide and then black screen, then I tried to reset my CMOS but still black screen. Any help?
 
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So my pc won't boot up (blackscreen but the fans are spinning) after I change ahci to ide. So then I reset the CMOS by taking out the battery for 24 hours. Then I put it back same thing happen (blackscreen fan spinning). So then I unplug everything (hard drive, ram, CPU, gpu, etc) and rebuilt it. Still no screen (but fan are spinning). Then I suspect it's my hard drive. So I completely format my ssd from my other laptop using external adapter. Then put it back. Still no screen (fan go spin still).

None of them worked for me. I believe it's just that my CPU was fried. Or it's not because I only changed ahci to ide and then black screen, then I tried to reset my CMOS but still black screen. Any help?
What are your pc specs?