Chapter 2: Installation Fan Headers The C2SBM-Q has three chassis fan head- ers (Fan 1 to Fan 3). Fan 1 is the CPU Fan. Fan 2 to Fan 3 are system/chassis fans. Note: Pins 1-3 of a 4-pin fan headers are backward compatible with the tradi- tional 3-pin fans.) See the table on the right for pin definitions. *The onboard fan speeds are controlled by Thermal Management via BIOS Hardware Monitoring in the Advanced Setting . ( Default: Disabled. When using Ther- mal Management settings, please use all 3-pin fans or all 4-pin fans on the motherboard.) VGA Connector A VGA connector (JG1) is located next to the USB ports on the IO backplane. Refer to the board layout below for the location. A A.
Fan 1 (CPU Fan) B. Fan 2 C.
Fan 3 J12 CD1 Front Audio CD-IN JPAC J9 PCI1 SPEAKER Buzzer SPKR Slot4 PCI-33MHz COM4 USB 10 JWOL J15 J3 IDE#1 ITE 8213 COM3 J14 J47 J45 J44 FP USB 6/7 FP USB 8/9 JPUSB2 JWD JLED FAN2 B 2-15 Fan Header Pin Definitions (Fan1-3) Pin# Definition 1 Ground 2 +12V 3 Tachometer 4 PWR Modulation J41 CPU Fan KB/MOUSE FAN1 4-Pin PWR J28 LGA 775 CPU JPT1 I/O 2 W83627DHG S I/O 1 W83627DHG S J31 COM2 DIMM1A DIMM2A DIMM1B DIMM2B JGS1 JFSB1 JFSB2 J43 2U /S 3/ B 4 /5 Intel Q35 JPUSB1 USB 0,1 LAN 1 J11 C JFSB3 Audio Fan3 J46 LAN CTRL Slot7 PCI-E x16 PCI3 JWOR Slot6 PCI-33MHz C2SBM-Q PCI1 JJII22CC21 II -- SS AA TT AA 10 JS1 JPL1 Intel ICH9DO JS2 Slot5 PCI-E x4 Battery JBT1 I-SATA2 PCI2 JS3 I-SATA3 JS4 Audio CTRL JP2 IDE CTRL PWR ATX 24-pin J40 JL1 JF1 LE1 CTRL FP J28 VGA COM1 J31 DIMM1A DIMM2A