5-4 Compaq ProLiant ML570 Maintenance and Service Guide
SDRAM Dual Inline Memory Modules (DIMMs)
CAUTION: Use only SDRAM DIMMs of the same size, speed, and manufacturer. SDRAM DIMMs
from other sources may adversely affect data integrity. Power-On Self-Test (POST) warns of
nonsupported SDRAM DIMMs.
Table 5-3
SDRAM DIMM Specifications
Size 128-, 256-, 512-MB, and 1-GB
Speed CL-2, CL-3
Upgrade requirement Bank of four identical DIMMs installed
or removed at a time
Note: Use only 128-, 256-, 512-MB, or 1-GB registered, 72-bit wide, 3.3-volt, ECC SDRAM.
SDRAM must be 100-MHz or faster. Use Compaq SDRAM only.
1.44-MB Diskette Drive
Table 5-4
1.44-MB Diskette Drive Specifications
Size 3.5 inch
LED indicator (front panel) Green
Read/write capacity per diskette (high/low density) 1.44-MB/720-KB
Drives supported 1
Drive height 1/3
Drive rotation 300 rpm
Transfer rate bits/sec (high/low) 500-KB/250-KB
Bytes per sector 512
Sectors/Track (high/low) 18/9
Tracks/Side (high/low) 80/80
Access times
Track-to-track (high/low) 3 ms/6 ms
Average (high/low) 169 ms/94 ms
Settling time 15 ms
Latency average 100 ms
Cylinders (high/low) 80/80
Read/write heads 2
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