dgsga

I have been driven mad by the recent changes in iMessage registration which have resulted in the dreaded 'Contact Apple Support' error. For those with an Asus Series 6 or 7 Chipset mobo (sandy / ivy bridge) then here is the fix that finally worked for me:

Go here to download the excellent FD44Editor and FTKToolkit (all credit to the developer CodeRush for this great piece of software):

http://hardforum.com...d.php?t=1726429

Please read this page carefully before you proceed so you understand what you are doing.  The usual warnings about flashing your bios apply here as always.
Use the dos toolkit to dump a backup of your bios as per instructions on the webpage. Keep a copy of this safe just in case...
Use the FD44Editor to change your System UUID and MAC address of your Intel GbE onboard ethernet
Flash the fixed bios back using instructions on the webpage
Clear CMOS and restore your original bios settings
Use your bootloader of choice (Revoboot/Clover) to provide necessary MLB and ROM keys for iMessage to work, make sure the ROM key matches your new MAC address and that your MLB key matches your 17-byte board serial number injected into your SMBIOS.
Make sure your 16-byte SystemID injected via your bootloader matches the one you modded your bios with
Change the name of your hack in SysPrefs > Sharing
Login to iMessage and fingers crossed.
If any of these steps or if any of the keys are missing login will fail.
Good Luck, I hope you have success with it.

Hi All

Many people have reported blank screen issues with this card when waking from sleep. Otherwise works natively in ML without Graphics Enabler (if you only have 2Gb graphics memory). I took a risk and flashed my EVGA card with an updated ASUS bios and hey presto wakes from sleep every time. Click here for the link:

http://rog.asus.com/...or-performance/

I updated my standard card with the TOP overclocked bios and it works absolutely fine, no overheating on normal use (BUT I don't play games so this might be unwise if you do). Remember that flashing your GPU bios is a risky business it could waste your card so do so at your own risk...

This quick dsdt edit seems to work.  You can inject this via efi device properties too. Insert the device code wherever you have USB3 in your DSDT (find this using ioreg), naming each device XHC1, XHC2 etc...

Device (XHC1)
				{
					Name (_ADR, Zero)
					Alias (PW94, _PRW)
					Method (_DSM, 4, NotSerialized)
					{
						Store (Package (0x0A)
							{
								"device-id",
								Buffer (0x04)
								{
									0x31, 0x1e, 0x00, 0x00
								},
							  
								"vendor-id",
								Buffer (0x04)
								{
									0x86, 0x80, 0x00, 0x00
								},
								"name",
								Buffer (0x0D)
								{
									"pci8086,1e31"
								},
							  
								"subsystem-id",
								Buffer (0x04)
								{
									0x70, 0x72, 0x00, 0x00
								},
								"subsystem-vendor-id",
								Buffer (0x04)
								{
									0x86, 0x80, 0x00, 0x00
								}
							}, Local0)
						DTGP (Arg2, RefOf (Local0))
						Return (Local0)
					}
				}

 usb3.tiff   59.73K   244 downloads  usb32.tiff   126.8K   167 downloads