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Industrial Motherboard
IMBA-Q870-i2-R10 - Why SYS_FAN1 doesnt' start/spinning sometimes perhaps SYS_FAN2 is always spinnin?
| IMBA-Q870-i2-R10 - Why SYS_FAN1 doesnt' start/spinning sometimes perhaps SYS_FAN2 is always spinnin? |
| KBA-01203-MBBM3F |
| Brief Description |
| This is normal because SYS_FAN1 is controlled by iWDD in BIOS for Smart-functions sensing based on system's environments. |
| Solution |
| SYS_FAN1 can rotate when system/chassis goes beyond some temperature level ~40 deg C, otherwise it will be stop rotating and this can be monitored and viewed in BIOS under iWDD hardware monitor. |
| Remark |
SYS_FAN2 is connected by Vcc to run always! CPU_FAN is separated than above SYS_FAN's. This condition is applied for most of ATX-motherboards from IEI! |
2016/09/09
