I have a PC that seemed to have died years ago that I am trying to revive. It has a dual core athlon processor and a gigabyte motherboard. It had two dual output graphics cards, and I have long since forgotten which output would print out the diagnostic information as the PC starts up. Also I suspect that the resolution set on all the monitors was probably higher than my current single monitor is capable of displaying. The motherboard also has a built in graphics card, so I thought it may be simplest to remove both the graphics cards and plug my monitor into the onboard graphics just while I get things going. Does that seem sensible?

Now the other problem: The PC has two hard drives. I have no idea which one is the primary one it is attempting to boot from. When I power up, the fan comes on and I hear some chuga-chuga-pause chuga-chuga-pause repeat indefinitely. I'm not sure which device is making the noise. There are no-beeps at any time. I see nothing on the screen at any time, not even for a second.

Any suggestions?

EDIT: If T start up the PC without the power connected to the CDrom there is no chuga-chugan noise.