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#1
Failure to Boot When Re-start Computer
PC boots OK after Shutdown, no problem.
But, the PC fails to boot when Restart is selected in Windows.
PC will cold boot OK. It does POST as normal, advances to an add-on SATA III controller card, continues to a dual-boot screen (Win 7 / Win 8.1 with Win 7 as the default), then starts Win 7 without problems. The "First Boot Device" in BIOS is set for my boot drive/add-on controller card. "Second Boot Device" in BIOS is set for CD/DVD-ROM.
The problem occurs whenever i do a Restart. The PC completes the POST routine but never reaches the dual-boot screen. Instead it displays this:
"CD-ROM Boot Priority ... No Medium. Reboot and select proper boot device or insert boot media in selected boot device and press a key."
If i then press the "Reset" button the PC reboots and the same error message appears again. If i press Reset and then enter the BIOS the Boot setup screen still shows First Boot Device as being a hard drive, but my boot drive is not listed and a spare data drive is the first one listed.
My boot drive is an SSD and it's connected to the add-on SATA controller card mentioned above. Also, a regular HDD is connected to that controller card. After the boot failure when doing a Restart, the controller card along with the two drives attached to it are no longer listed in the BIOS.
So, then i hold down the Power button to force a Shutdown. After waiting the usual 10 or 20 seconds for the power supply capacitors to dissipate i press the Power button to turn on the computer and, voila!, it boots normally and all is well.
The issue can be provoked again by selecting Restart. It doesn't matter if the PC has been on for 2 minutes or 2 hours.
To recap, the PC cold boots OK every time, but it fails to boot on Restart every time. Clearly, the ADD_ON CONTROLLER CARD IS NOT RECOGNISED when Re-booting, yet IT IS RECOGNISED WHEN COLD BOOTING !
If there's a loose connection the problem should not occur only when Restarting. If it's a driver problem on the controller card then, again, why does it only occur on Restart?
Hoping one of you brilliant troubleshooters can help me resolve this mysterious problem. Any suggestions?
P.S. Almost forgot, the Win 8.1 boot drive is a separate drive connected directly to a SATA II port on the motherboard,; i.e. it's not connected to the add-on controller card.