- Joined
- May 26, 2011
- Messages
- 138
- Motherboard
- I didn't read
- CPU
- the RULES!
- Graphics
- so IGNORE me!
- Mac
- Mobile Phone
the best way is to dump your acpi tables (dsdt ssdt) from linux or windows and compare the pstates in your ssdt.The high pitched noise has to do with the cpu power management and as i said before it's probably coming from the voltage regulators next to the cpu.
cpu-pwm.png
Make sure the ssdt u are using is for your cpu using this little guide
http://macmanx86.blogspot.com/2012/05/c ... ement.html
Remove everything related to cpupm from the bootloader and try 1 thing at a time.
with or without DropSSDT with or without generateCstates.
never use generatePstates.
Also try NOT to use any SSDT.aml and use generatePstates and generateCstates DropSSDT=no.what happens then? post MSRdumper results
cpu-pwm.png
Make sure the ssdt u are using is for your cpu using this little guide
http://macmanx86.blogspot.com/2012/05/c ... ement.html
Remove everything related to cpupm from the bootloader and try 1 thing at a time.
with or without DropSSDT with or without generateCstates.
never use generatePstates.
Also try NOT to use any SSDT.aml and use generatePstates and generateCstates DropSSDT=no.what happens then? post MSRdumper results