* Macbook Pro (15-inch, 2009) w/ NVIDIA MCP79

* Macbook Pro (13-inch, 2009) w/ NVIDIA MCP79 THE LIST OF AFFECTED APPLE MACBOOK PRO LAPTOPS But in fact EFI ignores this requirement and programs DRAM clock frequency in accordance with SPD settings of DDR3-1333 modules. Basically, DRAM speed grade should be derated to DDR3-1066 and memory subsystem timing parameters should be adjusted accordingly. BIOS/EFI should detect the presence of DDR3-1333 DRAM modules and not configure the DRAM controller to be operated at a clock frequency of 667 MHz. This is the limitation of all NVIDIA MCP79 and MCP89 parts.

The reason is chipset’s DRAM controller which is not capable of operating at 667 MHz officially. The main disadvantage of Apple Macbook Pro Series laptops equipped with the previous generation Intel Core 2 Duo Penryn code-named processors is an unreliable operation in configurations where DDR3-1333 DRAM modules are used. Virtual machine emulates a common PC hardware configuration and does not allow to access the real hardware of your Macbook. NOTE: Please DO NOT use VMWARE virtual machine on your Macbook to run Thaiphoon Burner to flash your memory modules. Ensuring backward compatibility between DDR3-1333 modules and Apple Macbook Pro Series laptops.Thaiphoon Burner - Official Support Website

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