System Board
Option #	Manufacturing Part #	Description	Previous Part #
SELX4002Z [S]	M5000 Motherboard Upgrade to SPARC64 VII+ 2.66GHz
	7047351 [F]	Motherboard Cage (MOBO2/MBU_B_2) includes motherboard 7048160	n/a
	300-2009 ²¹ [F]	1.2V DC-DC Converter, DDC_A	n/a
	300-2010	3.3V DC-DC Converter, DDC_B [SKU]	n/a
n/a	541-0478 [F]	Motherboard Cage (TMOBO/MBU_B) includes motherboard 501-7670	n/a
	300-2009 ¹⁹ [F]	1.2V DC-DC Converter, DDC_A	n/a
	300-2010	3.3V DC-DC Converter, DDC_B [SKU]	n/a
n/a	541-4360 [F]	Motherboard Cage (MOBO2/MBU_B_2) includes motherboard 511-1601	n/a
	300-2009 ²⁰ [F]	1.2V DC-DC Converter, DDC_A	n/a
	300-2010	3.3V DC-DC Converter, DDC_B [SKU]	n/a

¹⁹ DDC_A is a valid FRU on an IOU only. On a MBU_B the FRU is the complete MBU_B.
²⁰ DDC_A is a valid FRU on an IOU only. On a MBU_B the FRU is the complete MBU_B.
²¹ DDC_A is a valid FRU on an IOU only. On a MBU_B the FRU is the complete MBU_B.

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