Intel DQ57TM Product Specification - Page 51
Add-in Card Connectors
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Technical Reference Table 19. Processor (4-Pin) Fan Header Pin Signal Name 1 Ground 2 +12 V 3 FAN_TACH 4 FAN_CONTROL Table 20. Front and Rear Chassis Fan Headers Pin 4-Wire Support Pin 3-Wire Support 1 Ground 3 Ground 2 +12 V 2 FAN_POWER 3 FAN_TACH 1 FAN_TACH 4 FAN_CONTROL N/A N/A Table 21. Intel Remote PC Assist Technology Header Pin Signal Name 1 RPAT# 2 Ground 2.2.2.2 Add-in Card Connectors The board has the following add-in card connectors: • One PCI Express 2.0 x16: this connector supports simultaneous transfer speeds of up to 8 GB/s of peak bandwidth per direction. • Two PCI Express 2.0 x1: each of these connectors support simultaneous transfer speeds of up to 500 MB/s of peak bandwidth per direction. • One Conventional PCI (rev 2.3 compliant) connector. Note the following considerations for the Conventional PCI bus connector: • The Conventional PCI bus connector is bus master capable. • SMBus signals are routed to the Conventional PCI bus connector. This enables Conventional PCI bus add-in boards with SMBus support to access sensor data on the desktop board. The specific SMBus signals are as follows: ⎯ The SMBus clock line is connected to pin A40. ⎯ The SMBus data line is connected to pin A41. 51