Yeah, one will be the master and one will be the slave, with the top (black) plug for the master the lower (gray) plug for the slave and the blue plug for the motherboard. There are jumpers on the backs of IDE drives which you have to set to "master", "slave" or "cable select". If you set both drives to "cable select", master and slave will be determined by what plug they're plugged into, so I usually just use the "cable select" setting for both drives.
Glad to hear that you figured out your problem.
"They should rename the team to the Washington Government Sucks. Put Obama on the helmet. Line the entire walls of the stadium with the actual text of the ACA.
Fix their home team score on the board to the debt clock, they can win every game 17,000,000,000,000 to 24. Losing team gets taxed by the IRS 100%, then droned."