Dell T3400 manual Front View Desktop Orientation, Card

4 card slots	Access connectors for any installed PCI or PCI Express
	cards.
	NOTE: The upper five connector slots support full-length
	cards; the connector slot at the bottom supports a half-length
	card.
	NOTE: Check the documentation for cards to ensure that you
	can accommodate them in your configuration. Some cards
	that require more physical space and power (such as PCI
	Express graphics cards) may restrict the use of other cards.

Front View (Desktop Orientation)

1 2 3 4 5 6 7

	12	11	10	9	8
1	upper 5.25-inch drive	Supports an optical drive.
	bay
2	lower 5.25-inch drive	Supports an optical drive or an additional hard drive
	bay	(SATA only).
3	3.5-inch drive bay	Supports a floppy drive or a Media Card Reader.
4	hard drive activity	The hard drive activity light is on when the computer
	light	reads data from or writes data to the hard drive. The
		light may also be on when a device such as an optical
		drive is in operation.

Quick Reference Guide

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