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Hi, Is my first post but I'm very glad because after 3 days of crazy tries I have Capitan on my Optiplex 745. The hardware: The original config has a Pentium D 935, with this processor was impossible to start the installation, I was able to install Leopard but is not enough for me, I bought an Intel Core 2 Duo E6600 and I have replaced the Pentium D. My desktop is the "Small form" design, with sata slim dvd recorder and 80GB sata hard drive. Was very difficult to config the Clover bootloader for Sata detection at installation. I made a lot of proofs, downloaded a lot of kext and finally after thousand tries I reached the glory I have got a little problem with this "glory" after installation, I made too many proofs and this situation caused that I'm not sure what was the correct config, when I restarted after install I got a kernel panic, I decided to use the "force": 1.- Mounted the efi partition of my pendrive that starts perfectly 2.- Copied the efi folder of this partition 3.- Mounted the hard drive efi partition 4.- Replaced the hard drive efi folder with the pendrive efi folder 5.- Installed with kext wizard: - ATAPortInjector - AppleIntelPIIXATA2 - BCM5722D for Ethernet - AppleHDA-272.18.1-ADI1988B for ADI1983 sound Restarted and everything is working. I will install a HD5450 to have full graphics. I attached my "EFI" folder (to replace on the EFI partition, mounted with clover configurator) and the kext to install in S/L/E I hope can be useful to someone! Capitan_Optiplex_745_Zagx.zip

Hey I'm start by saying a lot of the info if not all is already on here scattered... Im just make a write up quick to show u what is needed.. Dell Optiplex 745 q6700 8gb ram hd5450 512mb ssd 120 gb Yo need MACPWN and Yosemite app and a working mac or the same one with a previous version.. Make the USB be PATIENT!!!! it took about 30 minutes to complete and the status didn't move much ... once done u need kext utility and IOATA kext ver 2.5.1 and insert that to S/L/E of usb installer then rebuild permmison now set up ur bios as follows disket usb sata only leave the one with the hdd ur going to us turn off the rest then put it in legacy mode.. now boot off the usb and install OS X yosemite after install use kext uftilitys to put in all the kext from the usb installing in the EFI folder and add in your network kext and sound kext all to S/L/E and rebuild then go to disk utility and resize you partition make a 1gb partition ms dos format now install clover to the 1gb partition u can add themes now and u don't need to check everything off and then you r good just reboot and u will be booting from your hard drive now you can fix ur setup and may sure ur mac is on SATA 0 you should be good to go also u need to add graphic but that easy u can find the hd5450 kext or wtvr one u use and put the kext in S/L/E ad rebuild