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Intel® Server System Server System "Emerald Ridge ... - CTL

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Intel® <strong>Server</strong> <strong>System</strong> "<strong>Emerald</strong> <strong>Ridge</strong>” Integrated BaseboardManagement Controller EPSAppendix A: OEM SDR RecordsByte10NameFan Profile SupportTemperature Sensor Sub-recordsDescriptionFan Control Profile Support. This bitmask indicates which fan controlprofiles that this record is valid for.Bit[7] 1 = Valid for profile 7[6] 1 = Valid for profile 6[5] 1 = Valid for profile 5[4] 1 = Valid for profile 4[3] 1 = Valid for profile 3[2] 1 = Valid for profile 2[1] 1 = Valid for profile 1[0] 1 = Valid for profile 0Table 90 contains the stepwise linear FSC SDR sub-record format. The front panel thermalsensor and any board level thermal sensors will follow the stepwise linear control algorithmand all the parameters documented in the table below. Front panel and/or board temperaturesensors are intended to be used to thermally managed components without a temperaturesensor by setting minimum FSC.Table 91 shows the clamped algorithm FSC SDR sub-record. All component (CPU, chipset,memory, etc.) thermal sensors will follow the clamped algorithm and all the parametersdocumented in Table 91.Table 89. Temperature Fan Speed Control SDR Record Format, Version 2ByteNameDescription0:2 OEM ID Intel manufacturer’s ID – 157h, little endian.3 Record Subtype Value 0Ch.Temperature Fan Control Record4 Record Version Version # of this specific SDR record subtype. Set to 01h for the formatdescribed in this document.5 Fan Control Domain Fan control domain number defined in the platform spec.6 Normal Control Value If no temperature sub-records present:The PWM value (% value – 0-100) to use when fans are commanded tobe at nominal speed.If only clamp type temperature sub-records present:The PWM value (% value – 0-100) base for contributions from theclamp type sub-records.In all cases:7 Boost Control Value If value is 0-100:Minimum PWM value (% value – 0-100) that the BMC must guaranteewill be in effect for the domain at all times.PWM value (%) to use when a fan has failed or a critical temperaturehas been detected.If value = 0xFF:Use Boost values from sub-recordRevision 1.0Intel ® Confidential 167

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