I have 3 HP DC7700s towers. The mobo uses BOTH a sata drive connector AND an IDE drive connector. Can I replace the sata cable with an IDE cable to use an IDE HDD? I also tried to install xp pro on this tower using my DELL cd. All went well ecept that the automated activation phone system rejected the OS as non genuine. I have used this same cd with many DELLs with success. I am now using my secondary DELL to load the OS onto the sata drive using a cable adapter. If all goes well I should be able to reinstall the now loaded sata back into the HP. Hopfully the nic will work as well. DELL CD has never asked for a key or activation used in a DELL tower. Tha fact that this is a sata drive going into a HP should not matter just as any loaded IDE can be used in any tower provided that the drive was loaded in the brand that matched the cd used. Can someone tell me if I am correct or not? Advice is always welcome. If the nic refuses to work in the HP I will need to install either a usb nic or card. I have only had to do that twice on a DELL when the on board nic refused to work. the card,or usb always worked. Move as needed.