
40 007-5759-001
5: System Serverboard Information
• Best performance is obtained with four 1333 MT/sec DIMMs for each processor (one on
each channel). The DIMMs must be dual-ranked and identical in speed and capacity. Note
that this will constrain the overall memory capacity available.
• Populating two 1333 MT/s DIMMs (dual-rank with identical capacity) on each channel of a
processor delivers up to 10.66 GB/s per channel memory bandwidth.
Hard Disk Drives (C2112-4G3 Chassis)
The 2U chassis supports a maximum of 12 SATA 3.5-inch hard disk drives (three per serverboard).
Install the primary (system disk) drives from left to right starting in the bottom-left bay. Figure 5-7
shows the drive trays that are connected with each serverboard and the disk positions. Figure 5-8
on page 41 shows the positions of the individual serverboards.
Important: All the 3.5-inch hard disk drive bays must be populated with either a drive or a “drive
blank” to maintain system thermals. Failure to follow this guideline may cause system overheating
and thermal shutdown of the unit.
Figure 5-7 C2112-4G3 3.5-inch Hard Disk Drives
Node B
Node A
Node D
Node C
Serverboard A drives Serverboard B drives Serverboard C drives Serverboard D drives
Drive location 0
Drive location 1
Drive location 2
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