system not reading my hdd

[socom2playa]

i have three hd's connected to my computer, they were all working fine, and now as i turn on my computer its not seeing my third hard drive. can anyone help?

 

[Tuskatappaja]

Well there might be something wrong with the third hd, can you tell how it is connected? IDE, SATA, SCSI etc?

Another problem could be in power supply, maybe it doesnt have enough juice to run 3 hd:s and all the other stuff you have?

 

[socom2playa]

its connected by SATA.

 

[Tuskatappaja]

SATA cables can have loose connection, check if the cable has peen pulled of.

Attach it with some duct tape if it doesn't hold otherwise.

If that's not the case, Windows may have been tampering with your SATA drivers.

 

[socom2playa]

i checked all of my connections everything is in place, it even shows the drive on my desktop,but when i click on it it give me an error message , its also asking me if i want to format the drive.I dont want to format it due to the fact i think i'll loose all my files that where on it.

 

[Tuskatappaja]

Hmm..

Have you accidentally turned RAID on/off ?
Changing that setting can make your files unreadable

 

[switch]

Are you running these in a raid setup or all as individual drives?

As long as that drive is not running your OS, try to put it in the channel that a known functioning drive is on and see if it recognizes then.

Other possibilities:

Bad SATA cable

Bad SATA controller