Chenbro SK32303 Installation Guide with 3Gb/s SATA/SAS Backplane - Manual - Manual (Page 13)

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SK32303 ver. A1
User’s Manual
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HDD Activity Signal Jumper
The default jumpers are installed for SATA-II (3.0 Gb/s) HDDs which support activity signal via pin-11 of the
connector on HDD.
If using SATA-I (1.5 Gb/s) HDD, remove the jumper for HDD 1, 2 or 3 and connect the activity signal
connectors on SK32303 backplane and RAID card to activate the HDD activity LED. The RAID card must
support the HDD activity signal such as 3ware 8000 & 9000 series.
Default setting for SATA-II HDD
Setting for SATA-I HDD (SK32303 Backplane)
Setting for SATA-I HDD (RAID Card)
Connect the 4-pin HDD LED cable to the CATHODE of the HDD activity connector on RAID card. Refer to
your RAID card’s user manual for the detailed pin definition.
HDD 3
HDD 2
HDD 1
HDD 1
HDD 2
HDD 3
HDD LED Cable: 26H113215-005