IBM P5 570 1.3.2Memory features, Disk and media features, Processor card FC, Description, 3273

Processor card FC	Description
CUoD (permanent)	FC 7929	FC 7897	FC 7898	FC 7899
Reserve CoD	not available	FC 7956	FC 7959	FC 7959
On/Off CoD (1-day billing)	not available	FC 7951, 7952	FC 7951, 7953	FC 7951, 7955

Each processor card features one POWER5 chip, with two processor cores that share

1.9MB of L2 cache, 36 MB of L3 cache, eight slots for memory DIMMs using DDR1 or DDR2 technology, and requires a minimum of 2 GB memory. (See “Memory features.”)

1.3.2Memory features

The processor cards that are used in the p5-570 system offer eight sockets for memory DIMMs. The total memory capacity requires four p5-570 building blocks and eight processor cards. DDR1 DIMM and DDR2 DIMM are different technologies that require different memory sockets, so the processor card with POWER5 microprocessors running at 1.9 GHz is available with two feature codes to allow the two different memory technologies. Table 1-5shows the memory feature codes that are available at the time of writing. The p5-570 system supports CUoD options for memory. (See 3.1.2, “Capacity Upgrade on Demand for memory” on page 53 for more details.)

Table 1-5 Memory feature codes

Feature code	Description
4452	2048 MB (4x512 MB) DIMMs, 208-pin, 8 ns Stacked DDR1 SDRAM
4454	8192 MB (4x2048 MB) DIMMs, 208-pin, 8 ns Stacked DDR1 SDRAM
4490	4096 MB (4x1024 MB) DIMMs, 208-pin, 250 MHz Stacked DDR1 SDRAM
4491	16384 MB (4x4096 MB) DIMMs, 208-pin, 250 MHz Stacked DDR1 SDRAM
4492	32768 MB (4x8192 MB) DIMMs, 208-pin, 250 MHz Stacked DDR1 SDRAM
7892	2048 MB (4x512 MB) DIMMs, 276-pin, 533 MHz DDR2 SDRAM
7893	4096 MB (4x1024 MB) DIMMs, 276-pin, 533 MHz DDR2 SDRAM

It is recommended that each processor card have an equal amount of memory installed. Balancing memory across the installed processor cards enables memory accesses to be distributed evenly over system components to provide optimal performance.

1.3.3 Disk and media features

Each p5-570 building block features six disk drive bays and two slim-line media device bays. In a full configuration with four connected p5-570 building blocks, the combined system supports up to 24 disk bays; therefore, the maximum internal storage capacity is 3.5 TB (using the disk drive features available at the this time of writing). The minimum configuration requires at least one 36.4 GB disk drive. Table 1-6shows the disk drive feature codes that each bay can contain.

Table 1-6 Disk drive feature code description

Feature Code	Description
3273	36.4 GB, 10K RPM Ultra320 SCSI disk drive assembly

6p5-570 Technical Overview and Introduction