Memory
Option #	Manufacturing Part #	Description	Previous Part #
X5288A-Z	4GB (2 × 2GB) Memory Option
	540-7062 [C]	Qty 2 - 2GB DIMMs (4GB Memory Assembly)	n/a
	371-2002	2GB Registered ECC DDR2-667/PC2-5300 DIMM	n/a
X5287A-Z [S]	2GB (2 × 1GB) Memory Option
	540-7061 [C]	Qty 2 - 1GB DIMMs (2GB Memory Assembly)	n/a
	371-2001	1GB Registered ECC DDR2-667/PC2-5300 DIMM	n/a
X5289A-Z [S]	8GB (2 × 4GB) Memory Option
	540-7063 [C]	Qty 2 - 4GB DIMMs (8GB Memory Assembly)	n/a
	371-2003	4GB Registered ECC DDR2-667/PC5300 DIMM	n/a

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