Drive not appearing

[CrazyCuz2k]

My server is running windows 7 sp2 on an asus m478t-e (AMD SB 750) chipset with an AOC SASLP-MV8. I just got 4 more 2 TB HD's bring my total to 11 HD's. One of my drives is not showing. I heard there is a 10 drive limit on the AMD SB 750 chipset. Is there a way I can resolve this, either with another controller or through software? I'm going to migrate the server to windows 8 as I want storage spaces as well as MCE. I'm also planning on getting an external box as well (ie Lian Li EX-503)

Thank you in advance,

Chris

 

[Aesma]

Have you tried to disconnect a drive connected to the motherboard to see if the missing drive on the AOC appears ?

Frankly I don't see what the southbridge would have to do with this.

 

[Ruoh]

Where is the drive not showing? Bios or OS?

 

[mwroobel]

Where are you plugging the drive that does not show, the MB or the HBA? Also, does that drive prove good in another machine?