3rd hard drive shows in device manager but..

[tizerist]

...It initially didn't show up in 'Computer' (or My Computer). Device manager said its working properly.
I put the Vista Disc in (had to get a pirate one from someone because my disc drive won't read the official one all of a sudden) and tried to install Vista on this one as a way of forcing it to show, only to get an error code 0x8007000cl. I then split the new 1.5 tb drive into 98 gb and about 1300 gb via the vista DVD's drive list that comes up, partitioned the 98 gb, and now that smaller one at least shows up under 'Computer' but it still wont allow me to format it.

Any ideas please? Thanks.

 

[raybay]

The fact that your system will not load your disk is worrisome, but I suspect you have a defective drive, or inadequate resources. Tell us more about your computer brand and model, or about the motherboard.
Is this a new SATA drive you are dealing with?

 

[tizerist]

Yes, the new third one is a ST315005 41AS SCSI
The other two are connected with SATA cables as well.
They are both WDC WD15 00ADFD-00NLR SCSI Disk Devices


Motherboard
Asus P5NT-WS SLI, NF680i SLI, 775
Memory
2GB (2x1GB) CorsairTwinX XMS2, DDR2
Videocard
ATI Radeon 3800

Hard Disk(s)
2 x 150 gb

Other Peripherals
620W Enermax Liberty Modular Series
Operating System
vista ultimate with sp1

 

[tizerist]

bumping in case this falls off the main page.
problem persists.