I have rebuilt the cache that way multiple times, with multiple reboots in between just to make sure - still nothing
Maybe your AppleHDA is damaged. From where did you download OS X? Make sure you don't tamper with AppleHDA.kext.
Also, please fill out your profile as requested in the guide.
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Please provide complete details
in your profile/signature
(Profile/Settings link in upper right corner of this site)
Mobo: manufacturer/model + bootloader(Clover/Chameleon/Chimera)
CPU: detailed CPU model + motherboard chipset
Graphics: all graphics devices + laptop internal screen resolution
For example, typical Ivy laptop:
Mobo: HP ProBook 4540s (Clover)
CPU: i5-3320m/HM76
Graphics: HD4000, 1366x768
Use CPU-Z on Windows to find CPU (Core iX-xxx) and motherboard chipset (HMxx), and graphics capabilities. For a laptop, these details are important and affect critical installation procedures.
Note: When specifying your bootloader, if using Clover legacy, please be sure to specify "Clover legacy"). Specifying "Clover" will be assumed as "Clover UEFI"