MBP A1261 doesn't recognize Hard Drive
I bought a MacBook Pro 17" (2008) A1261 and am trying to install MacOS.
I have put in the original Hitachi 250GB HDD (pre-formatted to GUID-Partition / MacOS Extended Journaled). When booting the device via cmd+R or cmd+opt+R the flashing folder with a question mark appears.
Resetting PRAM does not change anything, as well as cleaning and reconnecting the hard drive cables.
When booting via opt-key the mouse appears but no hard drive to choose.
Therefore I cannot get into the Boot-Menu.
I also tried another original Apple/Seagate HDD with 320GB without success.
Please help.