Is SR1530ALHX a typo? Did you mean the SR1530
AHLX instead? If so, this Intel motherboard can be optionally configured with either the Intel SRCS28X or SRCS16 RAID controller. Both of these controllers are based on the American Megatrends "MegaRAID" chipset, which is supported by the
ami(4) driver.
If you purchased either of these RAID controllers, you should see this in the dmesg during boot. Do you?