I have an old 2008 Mac Pro (MacPro3,1) which I recently upgraded with a new SSD from OWC (currently in Bay 4). I transfered my OS to that drive, and ever since the computer reboots instead of waking up from sleep.
I can put it to sleep just fine, but every time it wakes (whether thorough input or timer), I get the startup chime and it goes through the (immensely faster!) boot process.
Needless to say, this is rather annoying. What can I try to fix (or at least diagnose) this problem? I'm currently still running 10.9.5, and would prefer not to update, but I'm willing to do so if that's a likely fix.