Q: iMAC freeze and really loud speaker white noise
Recent onset of two crash types. Reinstalled software. PRAM, NVRAM, SMC reset done. Looking for thoughts or advice.
1)
iMac freezes and then there is a horrible white noise coming from the speakers. After about 20 seconds the computer restarts. Sometimes restart works. Other times restart gives the hardware error beeps.
2)
iMac freezes and then give a windows-like blue screen of death with lots of numbers displayed on left upper corner of screen. Sometimes restart works. Other times restart gives the hardware error beeps.
Every system diagnostic I have run for the disk, hardware and memory have passed.
There was a previous thread about this white noise issue that Apple locked and there was no resolution to it.
iMac 27", Mid 2011
2.7 GHz i5
12GB RAM
iMac, OS X Mountain Lion
Posted on Aug 23, 2016 8:48 AM
