Question : Problem: Dual Monitor and SATA drive not working together

I currently have a dell optiplex gx270 that runs windows xp with 2.8ghz and 2 gigs of ram. I currently have 4 ide devices; 3 hard drives and 1 dvd rom, and i sata hd. I also have a radeon 9800 pro with 128mg ram.

I am trying to use the dual monitor set up, but when I do have the dual monitors working, the sata drive is not found. When I unplug the vga cable; I am using both the dvi and vga, it recognizes the drive.
 
My pc is up to date. Any suggestions?

Answer : Problem: Dual Monitor and SATA drive not working together

Maybe you are drawing too much power for it from the power supply. Optiplex GX 270 power supply is only 250-300W.

You have a lot on your system for it. Dell's are good, but really work best in their default config's because of the power supplies.
Even the new ones are only 305W. Bummer.