Siig sc-sat212-s4, stops boot when connected

While most computers are capable of starting up properly with external drives connected, from time to time the external drive can cause confusion during the startup process. The computer may attempt to boot from the external hard drive rather than the primary internal drive. This causes the computer to fail during startup because the external hard drive does not have the operating system installed on it.

Disconnect the external hard drive from the computer. In order to minimize the risk of damage to or loss of files on the external drive, shut down the computer if possible, or hold down the power button on the computer until the computer turns off and then disconnect the external hard drive. Restart the computer with the drive disconnected. If the computer still does not start up, it is possible that the computer is attempting to boot from the external drive. Reconnect the external drive and restart the computer. Watch the screen as the computer boots up. A prompt will appear indicating which key to press to enter "Setup" or the "BIOS." Press this key when the prompt appears. On many computers the key is either Delete ,F2 or F10. Use the keyboard of the computer to navigate the "Setup menu" that appears. (Advanced Bios Features.) The BIOS is AMI. Under ADVANCED SETUP:
The options listed for 1st,2nd ,3rd Boot device include:

IDE-0 means Pri master ?
IDE-1 means Pri slave ?


IDE-2 means Sec master ?
IDE-3 means Sec slave ? or using the arrow keys you can load failsafe or optimized defaults this will set the boot order. Highlight the option for "Boot Disk" or "Startup disk" and select the "C:/" or the primary internal hard drive. Press the associated key, labeled so on the bottom of the screen, to save the changes and restart the computer. This will allow the computer to boot from the appropriate drive. Hope it helps.

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