Snipergod87 said:
I dont know if anyone but Apple can tell you the reason, but if its not working and the CPU's are the same then its probably a motherboard issue.
I have a P8700 in a Dell and I use SLFM all the time, (manually tuned voltages, I can so 1866Mhz @ 0.875).
There are two possible solutions. I assume Mac's have BIOS/Firmware updates you could try that. If that doesnt work, there is a solution in windows to manually set voltages for specific frequencies, you can use either CPUGenie (Paid for program), or RM Clock (Free, but you need to manually sign and load the 64bit DLL).
EDIT: I dont know if this programs will work on a Mac based PC. (difference in motherboards)
First of all thank you for replying. I already called Apple technical support here in Asia twice but they can't give me an answer. That's what I was suspecting also. This could be a motherboard or an EFI issue that Apple has to fix.
The problem is, Apple technical support can't give me an answer.
Actually, it seems that they actually, don't know what I'm talking about. Their product is so expensive and yet they give you a good support when you need it.
Any suggestion where I can escalate this question to Apple or what should be my next step?