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SK33502 ver. B0
User’s Manual
www.chenbro.com
15Fl., No.150, Jian Yi Road, Chung Ho City, Taipei Hsien, Taiwan R.O.C.,
Setting for HDD Failure Signal Cable Connection (SK33502 Backplane)
Setting for HDD Failure Signal Cable Connection (RAID Card)
Connect the 4-pin HDD LED cable to the CATHODE of the HDD failure pin header on RAID card. Refer to your
RAID card’s user manual for the detailed pin definition.
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
jack on HDD.
If using SATA-I (1.5 Gb/s) HDD, remove the jumper and connect the pin headers on SK33502 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 (with Jumper Cap)
Setting for SATA-I HDD (SK33502 Backplane)
HDD 1
HDD 2
HDD 3
HDD 4
HDD5
HDD 1
HDD 2
HDD 3
HDD 4
HDD 5
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