As Hard Disk Technology is progressing to boosts performance, so the cabling requirements are also changing. Make sure that you use 80-wire Ultra-133 cables on all of your IDE devices with properly assigned matching Master/Slave/Motherboard sockets connectors. Use a single device on each cable; and do not use middle connectors on a ribbon cable for slave drives, because, this will cause signalling problems. These signalling problems will prevent the drive from run at its maximum potential.