Back view (desktop orientation) – Dell Precision 390 User Manual
Page 24
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24
Quick Reference Guide
Back View (Desktop Orientation)
3
2
4
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1
card slots
Access connectors for any installed PCI or PCI Express cards.
2
power connector
Insert the power cable into this connector.
3
voltage selection switch
See the safety instructions located in the Product Information Guide for more
information.
4
back-panel connectors
Plug serial, USB, and other devices into the appropriate connector.
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