Memory
Option #	Manufacturing Part #	Description	Previous Part #
X7056A ²⁸	4 GB (4 × 1GB SDRAM DIMMs)
X7056A ²⁸	501-7386 [F]	1GB SDRAM DIMM, L	501-6109 [F]
X7050A ²⁹ [S]	512MB (4 × 128MB SDRAM DIMMs)
X7050A ²⁹ [S]	501-4489 [F]	128MB SDRAM DIMM	n/a
X7051A [S]	2 GB (4 × 512MB SDRAM DIMMs)
X7051A [S]	501-7385 [F]	512MB SDRAM DIMM, L	501-5030 [F] 540-5085
X7051A-Z [S]	2 GB (4 × 512MB SDRAM DIMMs), L
X7051A-Z [S]	501-7385 [F]	512MB SDRAM DIMM, L	501-5030 [F] 540-5085
X7053A [S]	1 GB (4 × 256MB SDRAM DIMMs)
X7053A [S]	501-5401 [F]	256MB SDRAM DIMM	540-5084
X7056A-Z [S]	4 GB (4 × 1GB SDRAM DIMMs), L
X7056A-Z [S]	501-7386 [F]	1GB SDRAM DIMM, L	501-6109 [F]
n/a	501-5030 [F]	512MB SDRAM DIMM	540-5085
n/a	501-6109 [F]	1GB SDRAM DIMM	n/a
n/a	540-5086 [F]	1GB SDRAM DIMM	n/a
n/a	F511-1030 ²⁴ [F]	Package of 25 × 512MB SDRAM DIMMs	n/a
n/a	501-7385 [F]	512MB SDRAM DIMM, L	501-5030 [F] 540-5085
n/a	F511-1031 ²⁶ [F]	Package of 25 × 1GB SDRAM DIMMs	n/a
n/a	501-7386 [F]	1GB SDRAM DIMM, L	501-6109 [F]

²⁴ See FAB article1000920 (formerly 201233) for details.
²⁶ See FAB article1000920.1 (formerly 201233) for details.
²⁸ 1GB DIMMs are not supported on 750MHz CPU/Memory boards.
²⁹ Only supported with 750MHz CPUs

Table Legend
[F] = Field Replaceable Unit (FRU) [C] = Customer Replaceable Unit (CRU) [S] = Supported, but can no longer be ordered with this system [N] = No longer supported for this system Price = Price this Part