Intel DX79TO Technical Product Specification - Page 49

Processor, Front and Rear Chassis, and Auxiliary

Page 49 highlights

Technical Reference Table 15. IEEE 1394a Header Pin Signal Name 1 Data A (positive) 3 Ground 5 Data B (positive) 7 +12 V DC 9 Key (no pin) Pin 2 4 6 8 10 Signal Name Data A (negative) Ground Data B (negative) +12 V DC Ground Table 16. SATA Connectors Pin Signal Name 1 Ground 2 TXP 3 TXN 4 Ground 5 RXN 6 RXP 7 Ground Table 17. USB 2.0 Headers Pin Signal Name 1 +5 V DC 2 D− 3 D+ 4 Ground 5 Key (no pin) Table 18. Chassis Intrusion Header Pin Signal Name 1 Intruder# 2 Ground Table 19. Processor, Front and Rear Chassis, and Auxiliary (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. 49

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94

Technical Reference
49
Table 15.
IEEE 1394a Header
Pin
Signal Name
Pin
Signal Name
1
Data A (positive)
2
Data A (negative)
3
Ground
4
Ground
5
Data B (positive)
6
Data B (negative)
7
+12 V DC
8
+12 V DC
9
Key (no pin)
10
Ground
Table 16.
SATA Connectors
Pin
Signal Name
1
Ground
2
TXP
3
TXN
4
Ground
5
RXN
6
RXP
7
Ground
Table 17.
USB 2.0 Headers
Pin
Signal Name
1
+5 V DC
2
D−
3
D+
4
Ground
5
Key (no pin)
Table 18.
Chassis Intrusion Header
Pin
Signal Name
1
Intruder#
2
Ground
Table 19.
Processor, Front and Rear Chassis, and Auxiliary
(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.