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Floppy disk drive connector (34-1 pin FLOPPY1) Page PagePagePagePagePage 2-22 2. Primary IDE connectors (40-1 pin PRI_IDE, SEC_IDE) 2-22 3. Serial ATA connectors (7-pin SATA1, SATA2, SATA3, SATA4) 2-23 4. Serial ATA RAID connectors (7-pin SATA_RAID1, SATA_RAID2, SATA_RAID3, SATA_RAID4) 2-24 5. CPU, front, and rear fan connectors (3-pin CPU_FAN1, CPU_FAN2, FRNT_FAN1, FRNT_FAN2, REAR-FAN1, REAR_FAN2) 2-25 6. Backplane SMBus connector (6-1 pin BPSMB1) 2-25 7. USB connectors (10-1 pin USB56, USB78,