Sun Microsystems Blade 1500 - DIMM Configurations; Memory Interleaving; TABLE C-3 Sun Blade 1500 Supported DIMM Configurations; C.3.5 DIMM Configurations

Appendix C Functional Description C-13
C.3.5 DIMM Configurations
TABLE C-3 describes supported DIMM memory configurations for the Sun Blade 1500
workstation.
C.3.6 Memory Interleaving
The UltraSPARC IIIi supports four interleaving modes:
■ Bank
■ Rank
■ DIMM
■ XOR
C.3.6.1 Bank Interleaving
Bank interleaving is interleaving within a single device on a DDR1 SDRAM. Each
DDR SDRAM used by the workstation contains 18 devices.
C.3.6.2 Rank Interleaving
Rank interleaving is interleaving between a pair of memory devices on a single
DIMM. Each DDR SDRAM used in by the workstation contains 18 devices, nine on
one half and nine on the other half. To perform rank interleaving, one discrete device
on the left half of the memory module must pair with its adjacent memory module
on the right half of the module.
TABLE C-3 Sun Blade 1500 Supported DIMM Configurations
SDRAM Organization
Number of
DRAMs
Physical
Bank per
DIMM
Module
Configuration
DIMM
Capacity
Minimal
Memory
Maximum
Memory
256Mbit (64Mx4) 18 1 64Mx72 512MB 1GB 2GB
256Mbit (32Nx8) 18 2 2x(32Mx72) 512MB 1GB 2GB
512Mbit (64Mx8) 9 1 64Mx72 512MB 1GB 2GB
512Mbit (128Mx4) 18 1 128Mx72 1GB 2GB 4GB
512Mbit (64Mx8) 18 2 2x(64Mx72) 1GB 2GB 4GB
1Gbit (256Mx4) 18 1 256Mx72 2GB 4GB 8GB
1Gbit (128Mx8) 18 2 2x(128Mx72) 2GB 4GB 8GB