My early 2009 20” iMac will not turn on. When I press the power button it beeps 5 times. Please help.
I counted again....it was only 4. How do I fix this. I don’t know anything about computers. Your help will be greatly appreciated.
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Five tones are you sure? Here's an Apple T/N on the tone codes: About Mac startup tones
这个答案有帮助吗？
5 beeps = Bad checksum for the ROM boot block
Reference: Macintosh Beep Codes
Good catch @mayer !
4 beeps = no good boot images in the boot ROM (and/or bad sys config block)
过去 24 小时： 1
过去 7 天： 2
过去 30 天： 6
总计 444
