Cannot change bios settings

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Grunt101st

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Aug 24, 2015
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I just built a new pc for a friend, this is not my first rodeo although I am not a pc expert. The motherboard is an Asus P8B75-M, with an Intel i-3 processor corsair ram and an Asus GT610 video card, with a corsair 500x power supply. The problem is I cannot load the operating system, windows 7 home premium 64 bit. The hard drive is aToshiba 2TB 6Gb/s sata. For some reason the motherboard bios wants to use this as the boot, I have tried everything I know to switch it to the optic drive, no luck, it does not even show the drive in the bios, I am stumped, never had this happen before and this is my 6th build, can you help?
 
Solution
popatim
make sure the power and data cables to the optical drive are fully installed, if the optical drive still isn't being detected by the bios, the try different cables including swapping out the power cable. If it still isnt being shown with cables you know work then the optical drive is probably defective.
btw the hdd/ssd should be in the single white sata port and the optical in the highest numbered blue sata port.
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popatim

popatim

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Dec 2, 2009
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make sure the power and data cables to the optical drive are fully installed, if the optical drive still isn't being detected by the bios, the try different cables including swapping out the power cable. If it still isnt being shown with cables you know work then the optical drive is probably defective.
btw the hdd/ssd should be in the single white sata port and the optical in the highest numbered blue sata port.
 
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Grunt101st

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Aug 24, 2015
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Popatim, the optical drive was bad, new but bad, installed an old one I had from a former rebuild and everything booted up right away and started dl,ing the os system, I would have never thought that a new optical would be bad, lesson learned. I also did not know that optical needed to be in highest number port, I do not think I did that in my former builds but will def do it now. Thanks for the help, this was making me crazy lol!!!!
 
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popatim

popatim

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Grats! The optical didnt need to be in the highest port but it sure makes things easier when you go to add more harddrives or/or move to a motherbd raid setup. The higher ports often have a bios setting to be left in ide/compatibility/legacy mode too all while the lower 4 can be set to ahci or raid.
 
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