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EMC2103-2-AP Datasheet(PDF) 79 Page - SMSC Corporation |
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EMC2103-2-AP Datasheet(HTML) 79 Page - SMSC Corporation |
79 / 84 page RPM-Based Fan Controller with HW Thermal Shutdown Datasheet SMSC EMC2103 79 Revision 0.85 (01-29-08) DATASHEET Note: The values shown in Table A.6 are example settings. All the cells in the look-up table are programmable via SMBus. 790oC 105oC80oC80oC 09h (6826 RPM) 8100oC110oC85oC100oC 08h (7680 RPM) Table A.7 Fan Speed Determination for Example #2 (using settings in Table A.6) EXTERNAL DIODE 1 TEMPERATURE (CPU) EXTERNAL DIODE 2 TEMPERATURE (GPU) PUSHED TEMPERATURE (DTS1) PUSHED TEMPERATURE (DTS2) PWM RESULT Example 1: 75°C 75°C 35°C (translated as 65°C) 50°C (translated as 50°C) 0Ch (5120 RPM) - CPU requires highest target Example 2: 75°C 90°C 15°C (translated as 85°C) 20°C (translated as 80°C) 08h (7680 RPM) - DTS1 requires highest target Example 3: 75°C 97.25°C 30°C (translated as 70°C) 5°C (translated as 95°C) 09h (6826 RPM) - DTS2 requires highest target Table A.6 Fan Speed Control Table Example #2 (continued) FAN SPEED STEP # EXTERNAL DIODE 1 TEMPERATURE (CPU) EXTERNAL DIODE 2 TEMPERATURE (GPU) PUSHED TEMPERATURE SETTING (DTS1) PUSHED TEMPERATURE SETTING (DTS2) TACH TARGET |
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