There is a problem with this 21.5-Inch (Mid-2011) iMac. After removing the SuperDrive and installing the SSD (some OCZ model), there is a problem with installing Windows via Boot Camp. The idea is to have OS X on the SSD and Windows on the HDD. Also, on the HDD should be HFS+ partition for OS X accessible data.
This is a pretty much Boot Camp-supported configuration. I had no problems with installing Windows 8 with Boot Camp Assistant in past, before the upgrade.
Installing Windows in
EFI mode on this older iMac is a no-go, because in this mode the internal graphics and audio never works and system often crashes. So the only option is
What I've tried.
USB booting is not supported on this old machine, but I tricked Boot Camp Assistant that it is capable to boot from USB only to make sure it actually isn't.
So I've fell back to the SuperDrive connected via USB. The Boot Camp Assistant does its job well, preparing the USB with support software and partitioning the HDD. However, when I try to boot from the SuperDrive, connected via USB, there is only a blinking cursor.
I've tried every USB port for SuperDrive and support USB connection, tried to disconnect the support USB, tried to explicitly boot from the SuperDrive in Boot Manager, but there is only blinking cursor. Windows installer never starts.
I've tried OS X Mavericks, Yosemite, El Capitan and even macOS Sierra Public Beta. I've tried Windows 7, 8.1 and 10 (installation images of which were generated by Media Creation Tool provided by Microsoft, so they are purely genuine). I've tried to disconnect HDD and install Windows on the second partition of the SSD. I've even tried another SuperDrive, from Mac Book.
And still all I've got is a blinking cursor.
What else can I check?