Intel Desktop Board DB85FL Technical Product Specification
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Table 19. Processor, Front, and Rear Chassis
(4-Pin) Fan Headers
Pin Signal Name
1 Ground
(Note)
2 +12 V
3 FAN_TACH
4 FAN_CONTROL
Note: These fan headers use Pulse Width Modulation control for fan speed.
Table 20. Chassis Intrusion Header
Pin Signal Name
1 Intruder#
2 Ground
Table 21. TPM Header
Pin Signal Name Pin Signal Name
1 PCICLK 2 GND
3 FRAME 4 Key (no pin)
5 PCIRST 6 N/C
7 LAD3 8 LAD2
9 VCC3 10 LAD1
11 LAD0 12 GND
13 N/C 14 N/C
15 3VSB 16 SERIRQ
17 GND 18 CLKRUN
19 PWRDWN 20 N/C
2.2.2.2 Add-in Card Connectors
The board has the following add-in card connectors:
• One PCI Express x16 (3.0/2.x/1.x)
• Two PCI Express x1 (2.x/1.x)