Primary master and secondary master
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Most of hard drive have jumper settings. While jumper configuration is not required for SATA, it's necessary for EIDE, SCSI etc. Jumpers can be found next to to the power and data ports on the hard drive. Most manufactures will print next to each 2 contacts the configuration supported (Slace, Master etc). Please refer to "Sources and related links" below to find more information.
Hard Drive configuration is used to define the Slave and master Hard Drive. When we are attaching more than one hard drive the configuration is used. Configuration is done by jumper setting which is available in back side of hard drive...1st two pins for master hard drive and last pins are slave..
Arrangement of Jumper pins on Hard Drive
System configuration, Boot order, Boot (start-up) configuration and docking-device configuration settings, Basic device configuration settings, Battery charge status and System security and hard-drive password settings
Be certain that it is plugged in properly (both the data cable and the power supply) and that the jumpers are right. You have to know what the jumper settings mean and what the jumper settings are for the other device (if applicable) on the cable.
set the faster drive to master jumper settings only if it has a working OS on it if not then it wont matter. just remember whichever drive you're using to boot your OS from is the one you have set on master and the second drive should be set to slave jumper settings.
the bios has not been configured to detect a second hard drive
Primary Master Primary Slave Secondary Master Secondary Slave Primary or Secondary will depend on which cable are you using to connect the drive. Master or Slave will depend on the drive's jumper configuration.
The BIOS has not been configured to detect a second hard drive
BIOS not configured to detect a second hard drive
Primary master and secondary master
No