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Apple Apple iMac 27" Late 2013 (820-3481-A)

Hi, not working. Only two leds on, third led remains off; no chime, no boot. Attached uncompressed Bin file.
Please clear me bios, system very slow. Thanks.
I only help clear me
doesn't work you need to try another BIOS don't resend the old BIOS
 
Hi, the original Bios works without problems; only is very slow. The bios that you clear me intel me region does not start. Could you please check if there is a problem? I sent the "bios dump" without compressing because if there is any failure in compression or decompression. Thank you very much; regards.
 
Hi, the original Bios works without problems; only is very slow. The bios that you clear me intel me region does not start. Could you please check if there is a problem? I sent the "bios dump" without compressing because if there is any failure in compression or decompression. Thank you very much; regards.
clear me only fix late display not fix run slow
run slow you need check hardware
 
I do not understand.
Please help me; I know the original bios (attached file) works correctly, only the iMac is slow, so the same bios with the cleared me region should at least make the equipment work the same, right? Or not? I m confused.
 

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