Missing Hardrive, Windows won't boot?

I have a asus p5n-e sli windows 7 with two hard drives each with 500gb. I have windows installed on HD 1 and it isn't showing up in bios setup or select boot device so windows won't boot. I had a power outage in my area and afterwards seems like the computer can't find hd that windows is installed on?? Any help with this would be very much appreciated..

I don't think its MBR because in the setup bios there should be two WD Hard drives showing up but only one is. I assume the missing one is where windows 7 is installed cause when I try to boot from the other drive just a bleeping cursor shows then reboots. Even if the MBR is missing shouldn't the HD still show up as a boot option and show is the bios HD menu? Sometimes when I boot up and go to boot selection menu the missing one shows up but without any other info, the other hd shows the type ie WD with alot of numbers etc..... while the other one is just blank?

I just made sure both sata were connected right and swapped connections and still won't boot. The only thing that changed was at first two drives were listed and the top one had no other info and after swap the bottom one was the one with no info from the boot menu after pressing f8. It didn't work so I decided to just switch them back the way they were connected before just in case.on the hard drives there were two cables connected to each drive, one that says sata and was wider and a smaller one right next to it, I just swapped both cables from both hd's.

Ok just checked and noticed that the smaller cables from each drive are connected to the mobo and right next to each other, should I disconnect this and swap as well? Is this the psu?

ICit2lol said:

TJGOA Mate sounds like the power outage may have wrecked the drive. It does spin up I am assuming? and you should try the disconnecting the secondary drive and try booting using the one with Windows on it.

Any chance of some pics of the cabling as I don't understand what you mean by there is is smaller cable next to the SATA data one there should be one about twice the width of the SATA plug which is the power cable. see pic

Your pic clears everything up thanks. Is there some software that I can boot from usb to see if it reads the hd with windows on it and check for errors, I want to make sure now that it isn't an MBR issue? Just in case I might want to install windows again on the other HD, hopefully I can salvage the files from the other drive but if windows isn't booting from the drive maybe that's a no go? Is there some other way to boot into the system to get my files from it?

Thanks will try ubuntu right now and see if that works, How do I make it bootable from usb though, should I try poweriso make bootable usb option or is there another way for ubuntu?
Just found this, http://www.ubuntu.com/download/deskt...ick-on-windows
will i be able to use the try now function using this method?

Hi TJGOA,

You can create bootable USB pen drives easily with Rufus Rufus - Create bootable USB drives the easy way

Thanks Ubuntu works like a charm and I was able to salvage all the data from the drive which is just awesome. Seeing that I was able to salvage the data doesn't this mean the drive still works, so why can't windows boot up? Maybe I'm missing the boot files after all? Maybe a partition is marked as inactive where the windows is installed to? Funny thing is that in ubuntu only one drive shows up, the one with the windows installed and the other isn't showing up, but from the bios menu the exact opposite is happening. Anybody have any idea what could be going on here? Would anyone recomend some software I could run in ubuntu to solve this, maybe partition software, disk repair, disk management,, etc??