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BIOS won't detect HDD, Can boot manually?

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June 10, 2014 12:23:50 PM

My PC has recently had an issue. I brought it back home to hook it back up in all its glory and well, the harddrive became unplugged.

I took the computer apart and air dusted it, as well as unplugging and plugging my harddrive back into place. Surprisingly it worked.

HOWEVER. Every time after that I turn it on and it will tell me to select a proper boot device, I would press F8 as instructed to select a booting device. I select my HDD, which is an IDE and Windows runs fine.

I was tired of having to select it manually and so I went to the BIOS setup and I went to Boot Options to change the default booting drive. My harddrive was not an option. I'm not sure what's going on.. My bios won't allow me to make it a default booting option, but I can select it manually each time it boots.

Any suggestions?

P.S. I also just very recently installed another 8 GB of RAM. Everything seem to have gone smoothly and this issue occurred before I installed it! Thanks!
a b } Memory
June 10, 2014 12:31:25 PM

You can reset the BIOS by unplugging the PC, and popping off the small round battery, and leaving it unplugged for about 30 seconds before you replace the battery and restart the PC. This sets all BIOS settings back to default (and resets the clock too, you'll have to fix the time)

Some BIOSes are set up so that you set a general default boot category (HDD, ODD) and then there is another section where you set the default HDD. Others may force you to press a key to enable or disable boot devices. Also, is there a system information or other such section in your BIOS where the HDD is visible?

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a b } Memory
June 10, 2014 12:38:57 PM

Looks to me that you have more than one HD on the computer and possibly an OS on each one? If so you may need to create a dual boot loader.. and if not it may need a startup repair, boot repair, MBR repair, etc.

Also if the HD is not a boot option, it may have to be selected in the BIOS as the main HD.. and if its the only HD, the SATA controller may have to be set to IDE mode/native.
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a b } Memory
June 10, 2014 12:40:32 PM

Most BIOS's on modern boards require you to first add the drive to the boot order, there is a seperate area to do this. Once you do this, it shows up in the boot order, then you arrange it there in the order you want it to actually boot.
It sounds like your drive was lost from the boot order during the unplugging, and has not been added back since you have it hooked back up and running.
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June 10, 2014 12:51:56 PM

Chicano said:
Looks to me that you have more than one HD on the computer and possibly an OS on each one? If so you may need to create a dual boot loader.. and if not it may need a startup repair, boot repair, MBR repair, etc.

Also if the HD is not a boot option, it may have to be selected in the BIOS as the main HD.. and if its the only HD, the SATA controller may have to be set to IDE mode/native.


I found the HD in the HD options, I set it back to the default HD. Whenever I unplugged and plugged the HD back in, I guess it set my external as the new default. I was able to also set it as my booting priority!

Thanks to everyone that replied! You guys are awesome
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