Intel D425KT Product Specification - Page 45

Add-in Card Connectors, Power Supply Connector, Table 23., Power Connector

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Technical Reference 2.2.2.2 Add-in Card Connectors The board has the following add-in card connectors: • PCI Express x1 Mini Card (rev 1.2 compliant) connector (D425KTW only) • PCI Conventional (rev 2.3 compliant) bus connector (with riser card support for up to two PCI cards) Note the following considerations for the PCI Conventional bus connector: • The PCI Conventional bus connector is bus master capable. • SMBus signals are routed to the PCI Conventional bus connector. This enables PCI Conventional bus add-in boards with SMBus support to access sensor data on the 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. The PCI Conventional bus connector also supports single-slot and dual-slot riser cards for use of up to two bus master PCI expansion cards. In order to support two PCI bus master expansion cards, the riser card must support the following PCI signal routing: • Pin A11: additional 33 MHz PCI clock • Pin B10: additional PCI Request signal (i.e., PREQ#2) • Pin B14: additional PCI Grant signal (i.e., GNT#2) 2.2.2.3 Power Supply Connector The board has a 2 x 12 power connector (see Table 23). This board requires a TFX12V or SFX12V power supply. Table 23. Power Connector Pin 1 2 3 4 5 6 7 8 9 10 11 12 Signal Name +3.3 V +3.3 V Ground +5 V Ground +5 V Ground PWRGD (Power Good) +5 V (Standby) +12 V +12 V No connect Pin 13 14 15 16 17 18 19 20 21 22 23 24 Signal Name +3.3 V -12 V Ground PS-ON# (power supply remote on/off) Ground Ground Ground No connect +5 V +5 V +5 V Ground 45

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Technical Reference
45
2.2.2.2
Add-in Card Connectors
The board has the following add-in card connectors:
•
PCI Express x1 Mini Card (rev 1.2 compliant) connector (D425KTW only)
•
PCI Conventional (rev 2.3 compliant) bus connector (with riser card support for up
to two PCI cards)
Note the following considerations for the PCI Conventional bus connector:
•
The PCI Conventional bus connector is bus master capable.
•
SMBus signals are routed to the PCI Conventional bus connector.
This enables PCI
Conventional bus add-in boards with SMBus support to access sensor data on the
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.
The PCI Conventional bus connector also supports single-slot and dual-slot riser cards
for use of up to two bus master PCI expansion cards.
In order to support two PCI bus
master expansion cards, the riser card must support the following PCI signal routing:
•
Pin A11: additional 33 MHz PCI clock
•
Pin B10: additional PCI Request signal (i.e., PREQ#2)
•
Pin B14: additional PCI Grant signal (i.e., GNT#2)
2.2.2.3
Power Supply Connector
The board has a 2 x 12 power connector (see Table 23).
This board requires a TFX12V
or SFX12V power supply.
Table 23.
Power Connector
Pin
Signal Name
Pin
Signal Name
1
+3.3 V
13
+3.3 V
2
+3.3 V
14
-12 V
3
Ground
15
Ground
4
+5 V
16
PS-ON# (power supply remote on/off)
5
Ground
17
Ground
6
+5 V
18
Ground
7
Ground
19
Ground
8
PWRGD (Power Good)
20
No connect
9
+5 V (Standby)
21
+5 V
10
+12 V
22
+5 V
11
+12 V
23
+5 V
12
No connect
24
Ground