AMD SB750 User Manual - Page 15

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(8) FAN Power Headers: SYSFAN1 (3-pin), CPUFAN (4-pin)

These connectors support cooling fans of 350mA (4.2 Watts) or less, depending

on the fan manufacturer, the wire and plug may be different. The red wire should

be positive, while the black should be ground. Connect the fan‟s plug to the

board taking into consideration the polarity of connector.

(9) Serial COM Port header: COM1

COM1 is the 9-pin block pin-header.

P W R L E D

P i n 1

J W F P

S P E A K

P i n 1

S y s t e m C a s e C o n n e c t i o n s

C P U F A N

S Y S F A N 2

S Y S F A N 1

F A N P o w e r H e a d e r s

S e r i a l C O M P o r t 9

12 12

P i n 1

-p i n B l o c k