ASRock 939Dual-SATA2 Quick Installation Guide - Page 12

on CLRTC1 for 5 seconds. However, please do not clear the CMOS right after you update the BIOS. If you need to clear the CMOS when you just finish updating the BIOS, you must boot up the system first, and then shut it down before you do the clear-CMOS action. 2.6 Onboard Headers and Connectors Onboard headers and connectors are NOT jumpers. Do NOT place jumper caps over these headers and connectors. Placing jumper caps over the headers and connectors will cause permanent damage of the motherboard! • Floppy Connector (33-pin FLOPPY1) (see p.2 No. 24) the red-striped side to Pin1 Note: Make sure the red-striped side of the cable is plugged into Pin1 side of the connector. Primary IDE Connector (Blue) Secondary IDE Connector (Black) (39-pin IDE1, see p.2 No. 15) (39-pin IDE2, see p.2 No. 16) connect the blue end to the motherboard connect the black end to the IDE devices 80-conductor ATA 66/100/133 cable Note: If you use only one IDE device on this motherboard, please set the IDE device as "Master". Please refer to the instruction of your IDE device vendor for the details. Besides, to optimize compatibility and performance, please connect your hard disk drive to the primary IDE connector (IDE1, blue) and CD-ROM to the secondary IDE connector (IDE2, black). Serial ATA Connectors These two Serial ATA (SATA) (SATA1: see p.2 No. 14) (SATA2: see p.2 No. 13) SATA2 connectors support SATA data cables for internal storage devices. The current SATA SATA1 interface allows up to 1.5 Gb/s data transfer rate. Serial ATA II Connector This Serial ATA II (SATA II) (SATA II_1: see p.2 No. 10) connector supports SATA II SATA II_1 data cables for internal storage devices. The current SATA II interface allows up to 3.0 Gb/s data transfer rate. It is recommended to plug SATAII HDD to SATAII connector (SATAII_1) and connect SATA HDD to SATA connector (SATA1 or SATA2). 12 ASRock 939Dual-SATA2 Motherboard English