Dell PowerEdge M520, Owner'S Manual

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System Overview
Your system includes up to four Dell PowerEdge M520 or M620 half-height server modules, two PowerEdge M820 full-
height server modules, or a mix of the server module types. The server modules are specifically configured for the VRTX
enclosure, and can be identified by a label marked PCIe on the server module.
Figure 1. Identifying a Server Module Configured for the VRTX Enclosure
1. PCIe label on the server module 2. server module
3. VRTX enclosure
If you install server modules that are not configured for the enclosure, an error message is displayed.
The enclosure supports power supplies, hard drives, Chassis Management Controllers (CMC), blower modules, and an
I/O module. These are shared resources for the server modules.
NOTE: To ensure proper operation and cooling, all bays in the enclosure must be populated at all times with either
a server module or with a blank. Similarly, all empty hard drive slots in the enclosure must be installed with hard-
drive blanks.
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