Precision 3640 Tower Service Manual

Table 1. Add-in card connection matrixAdd-in card matrix

	Zoom2	USB Type-C	Parallel/Serial	Serial	1 Gb NIC	2.5 Gb NIC	Intel Ethernet 10 Gb X550-t (Dual port)	Thunderbolt 3 PCIe Card
Lane width	x8	x1	x1	x1	x1	x1	x1	x4
Slot size	SW (Single width)
Card height	HH (Half Height)
Generation	3.0	3.0	2.0	2.0	2.0	3.0	3.0	3.0
Power	25 W	18.3 W	7 W	-	7 W	-	-	60 W
PCIe x16 (SLOT1)		¶	¶	¶	¶	¶	¶
PCIe x4 (SLOT3) Open ended	†							‡

^¶: Graphics cards have first priority and should always be placed on SLOT1. Non Graphics, other PCIe cards should be placed on SLOT3 before SLOT1 fitted with the Graphics Card.

^†: Only one Zoom2 card can be fitted on PCIe x4 slot and this limits to have only 1x M.2 SSD installed in it.

^‡: Thunderbolt 3 card can only be installed on SLOT3