Asus P4RD1-MX Motherboard DIY Troubleshooting Guide - Page 34
connectors 40-1 pin PRI_IDE, SEC_IDE
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2. IDE connectors (40-1 pin PRI_IDE, SEC_IDE) These connectors are for Ultra DMA 133/100/66 signal cables. The Ultra DMA 133/100/66 signal cable has three connectors: a blue connector for the primary IDE connector on the motherboard, a black connector for an Ultra DMA 133/100/66 IDE slave device (optical drive/hard disk drive), and a gray connector for an Ultra DMA 133/100/66 IDE master device (hard disk drive). If you install two hard disk drives to the same cable, you must configure the second drive as a slave device by setting its jumper accordingly. Refer to the hard disk documentation for the jumper settings. • Pin 20 on the IDE connector is removed to match the covered hole on the Ultra DMA cable connector. This prevents incorrect insertion when you connect the IDE cable. • Use the 80-conductor IDE cable for Ultra DMA 133/100/66 IDE devices. PRI_IDE SEC_IDE P4RD1-MX ® P4RD1-MX IDE connector 11 NOTE: Orient the red markings (usually zigzag) on the IDE ribbon cable to PIN 1. 1-22 Chapter 1: Product introduction