HP Workstation x4000 hp workstation x4000 - Technical Reference manual - Windo - Page 74
Fan Speed and Control, Table 5-3, Fan and Speed Control Scan, Sensor, Signal, Lower, Limit, Upper,
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Hardware Management (Monitoring and Reporting) Hardware Monitoring Table 5-3 Fan Speed and Control Fan tach speeds are given in revolutions per second. Multiply by 60 for rpm. Fan and Speed Control Scan Sensor Sensor Signal Lower Mid Upper Zircon Winbond Description # ID Limit Limit Pin Pin 51h CPU0FA P1FAN 15 NTACH TACH 52h CPU1FA P2FAN 15 NTACH TACH 53h SYSFAN FAN1T 10 TACH ACH 54h PCIFAN FAN4T 10 TACH ACH 55h HDDFA FAN5T 15 NTACH ACH 56h PSUFAN FANM 10 TACH 61h CPU0FA WP1FA - NCTRL NCTL 62h CPU1FA WP2FA - NCTRL NCTL 63h SYSFAN WFAN1 - PWM 23CTL 64h 65h PCIFAN FAN4C PWM TL HDDFA FAN5C NPWM TL 65 120 65 120 29 60 31 60 28 80 51 100 - - - - - - - - - - - Pin 20 - Pin 19 - Pin 18 GPIO 0 - GPIO 1 - GPIO 3 - - Pin 23 - Pin 11 - Pin 10 GPIO21 PWM1 GPIO20 PWM0 Fan #1: Processor 1 fan tach Fan #2: Processor 2 fan tach Fan #3: System fan tach Fan #4: PCI fan tach Fan #5: HDD fan tach Fan #6: Power supply fan tach Fan #1: Processor 1 fan ctrl Fan #2: Processor 2 fan ctrl Fan #3: System fan PWM (& unused spare fan PWM) Fan #4: PCI fan PWM Fan #5: HDD fan PWM 74 Chapter 5