System Board
Option #	Manufacturing Part #	Description	Previous Part #
n/a	541-4081 ¹²⁹ [F]	System Board Assembly/FRU	n/a
	511-1213	System Board	n/a
	150-3993 [F] Buy	3V Lithium Coin Cell Battery	n/a
	541-2543	System Board Tray	n/a
n/a	7013691 ¹³⁰ [F]	Main Module Subassembly	n/a
	350-1631	Enclosure	n/a
	7021098	Main Module	n/a
	371-2210 [F] Buy	3V Lithium Coin Cell Battery	n/a
	525-2146 [F]	SSCC NVRAM	n/a
n/a	7041481 ¹³² [F]	Main Module Subassembly	7013691 ¹³¹ [F]
	350-1631	Enclosure	n/a
	7041063	Main Module	7021098
	371-2210 [F] Buy	3V Lithium Coin Cell Battery	n/a
n/a	7048938 ¹³⁵ [F]	Main Module Subassembly	7041481 ¹³³ [F] 7013691 ¹³⁴ [F]
	7046812	Main Module	n/a
	371-2210 [F] Buy	3V Lithium Coin Cell Battery	n/a
n/a	7049265 ¹³⁷ [F]	System Board Assembly/FRU	541-4081 ¹³⁶ [F]
n/a	7049382 ¹³⁸ [F]	X3-2L System Board Assembly	n/a
	350-1730	System Board Tray	n/a
	7023964	Pass Thru Mezzanine	n/a
	7046334	System Board	n/a
	150-3993 [F] Buy	3V Lithium Coin Cell Battery	n/a
	7055748	Rear I/O Board	n/a
n/a	7058152 ¹³⁹ [F]	X4-2L System Board Assembly	n/a
	350-1730	System Board Tray	n/a
	7023964	Pass Thru Mezzanine	n/a
	7046334	System Board	n/a
	150-3993 [F] Buy	3V Lithium Coin Cell Battery	n/a
	7055748	Rear I/O Board	n/a

¹²⁹ Used in the Sun Fire X4270 M2 and the Sun ZFS Storage 7320 as part of the SPARC Supercluster T4-4.
¹³⁰ Used in the SPARC T4-4 as part of the SPARC SuperCluster T4-4.
¹³¹ Used in the SPARC T4-4 as part of the SPARC SuperCluster T4-4.
¹³² Used in the SPARC T4-4 as part of the SPARC SuperCluster T4-4.
¹³³ Used in the SPARC T4-4 as part of the SPARC SuperCluster T4-4.
¹³⁴ Used in the SPARC T4-4 as part of the SPARC SuperCluster T4-4.
¹³⁵ Used in the SPARC T4-4 as part of the SPARC SuperCluster T4-4.
¹³⁶ Used in the Sun Fire X4270 M2 and the Sun ZFS Storage 7320 as part of the SPARC Supercluster T4-4.
¹³⁷ Used in the Sun Fire X4270 M2 as part of the SPARC SuperCluster T4-4.
¹³⁸ Used in the Sun Server X3-2L as part of the SPARC SuperCluster T4-4.
¹³⁹ Used in the Sun Server X4-2L as part of the SPARC Supercluster T4-4.

Table Legend
[F] = Field Replaceable Unit (FRU) [C] = Customer Replaceable Unit (CRU) [A] = Alternate, can be used in system; wasn't used during production [S] = Supported, but can no longer be ordered with this system [N] = No longer supported for this system Price = Price this Part