Intel Desktop Board DZ77SL-50K Technical Product Specification
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Table 23. LPC Debug Header
Pin Signal Name Pin Signal Name
1 CK_33M_DEBUG 2 GND
3 PLTRST# 4 LFRAME#
5 LAD0 6 LAD1
7 LAD2 8 LAD3
9 GND 10 GND
11 +3.3 V 12 +3.3 V
13 Key (no pin) 14 +3.3 V
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)
• One PCI Express x4 (2.x/1.x)
• One PCI Express x1 (2.x/1.x)
• Three Conventional PCI (rev 2.3)
Note the following considerations for the Conventional PCI bus connectors:
• The Conventional PCI bus connectors are bus master capable.
• SMBus signals are routed to the Conventional PCI bus connectors. 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.
NOTE
PCI Express 3.0 is only supported by 3
rd
generation Intel Core processor family
processors.