Acer Altos R520 M2 Series User Manual page 28

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No. Icon
11
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Component
Non-maskable interrupt (NMI) button
Puts the server in a halt-state for diagnostic purposes
and allows the service technician to generate a NMI to
the processor to help debug server errors.
USB 2.0 port
2.5-inch hot-plug HDD bay
1 System tour