Question
On the X9DA7 motherboard, what are these jumper used for:

JBR1

JS4

JS5

JRK2
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Answer
JBR1 is for BIOS recovery boot, but we don’t enable the BIOS recovery feature for X9DA7.

JS4 and JS5 is for the SAS chip debug.

JRK2 is Raid Key connector
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