IBM manual MegaRAID 8480 RAID Controller - Connectors, Description, Type, Comments

Table 3.1	MegaRAID 8480 RAID Controller – Connectors
Connector	Description	Type	Comments
J2	DIMM Socket	Socket	Holds cache memory module.
J3	Ports 0–3	x4 SAS	SAS 4x connector that connects to
		ports	physical drives and expanders.
J5	Write Pending	2-pin	Connector for enclosure LED.
	Indication LED	connector	When lit, it indicates the on-board
			cache contains data and a write
			from the cache to the hard drives is
			pending. Optional.
J6	Firmware	2-pin	Reserved for LSI internal use.
	Initialization	connector
	Mode 0 or 3 Select
J7	On-board BIOS	2-pin	Reserved for LSI internal use.
	Enable	connector
J8	Universal	4-pin	Reserved for LSI internal use.
	Asynchronous	connector
	Receiver/Transmitter
	(UART) debugging
J9	Ports 4–7	x4 SAS	SAS 4x connector that connects to
		ports	physical drives and expanders.
J11	Keyed I2C connector	3-pin	Used for enclosure management.
		connector	Reserved for LSI internal use.
J12	Unkeyed I2C	3-pin	Used for enclosure management.
	connector	connector	Reserved for LSI internal use.

MegaRAID 8480 RAID Controller 3-3

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