李泽元的讲座.pdf

《李泽元的讲座.pdf》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、ServerArchitectureandDesignChallengesbyFredCLeeJan22,20071ConfidentialTechnologyTrends-Efficiency-PowerDensity-Cost-TimetoMarketQualityandreliabilityaretakenforgranted2ConfidentialEntry-LevelServerSystemsMultipleOutputs86%VID:0.95~1.7V/120A/100A/μsVR1.2V/7.2A/50A/μsProcessor1<80%3.3

2、V/30mA/VID:0.95~1.7V/120A/100A/μsVR1.2V/7.2A/50A/μsProcessor2PSU3.3V/30mA/VR1.5V/3(6)A/1(2)A/ns12V1.2V/3.6(7.2)A/1(2)A/nsVRAC1.8V/(0.65)A/(0.025)A/nsPFC5VChipsetD2D1.3V/(0.5)A/(1)A/nsVR3.3V/0.14(0.23)A/0.36(0.55)A/ns3.3V1.8VVR0.9VMemoryVR¾Customdesign12V5V¾LowoverallefficiencyHDD¾Lo

3、wpowerdensity12V5VOther3.3V3ConfidentialLowPSUEfficiency–EPS12VTestResultsRef:BASKARVAIRAMOHAN,“PowerSupplyEfficiencyinHighDensityDataCenterServers”,DigitalPowerForum20064ConfidentialHigh-EndServersSingleRegulatedBusStructureVRFrom75%toProcessor194%x93%=87%VRProcessor2VRPSU12VVRChip

4、setACEMIPFCD2DVRD2DVRMemoryVR5VVRHDD¾Customdesign¾Higherefficiency3.3VVR¾HigherpowerdensityOther5ConfidentialSingleOutputServerPowerSupplyTestResult•Singleoutputincreases•efficiencyRef:BASKARVAIRAMOHAN,“PowerSupplyEfficiencyinHighDensityDataCenterServers”,DigitalPowerForum20066Confi

5、dentialIntelHigh-VoltagePolarStructure1.2V/120AVR1.2V/7.2AProcessor186%3.3V/30mA94%12V1.2V/120AVRD2D1.2V/7.2AProcessor23.3V/30mAVR1.5V/3(6)A1.2V/3.6(7.2)APSUVR1.8V/(0.65)A95%Chipset1.3V/(0.5)AVRAC3.3V/0.14(0.23)AEMIPFC400V1.8V90%VR0.9VMemoryD2D3.3VVR12V92%5V5VHDDD2D12V•400Vdistribut

6、ion;5VOther•AllD2Dsarepluggedintomotherboard3.3V7ConfidentialSpecificD2DforAllVRs93%1.2V/120A7VVR1.2V/7.2AProcessor191%3.3V/30mADCXD2D1.2V/120AVR1.2V/7.2AProcessor23.3V/30mA94%VR1.5V/3(6)APSU95%D2D1.2V/3.6(7.2)AVR1.8V/(0.65)A400VChipsetAC1.3V/(0.5)AEMIPFCVR3.3V/0.14(0.23)A1.8V90%VR0

7、.9VMemory3.3VVRD2D12V92%5V5VHDDD2D12V5VOther•ImproveallVRsefficiency3.3V8ConfidentialAllDCXStructure1.2V/120A95%VR~7V1.2V/7.2AProcessor1DCX91%3.3V/30mA1.2V/120AVR1.2V/7.2AProcessor23.3V/30mA95%VR1.5V/3(6)APSUDCX1.2V/3.6(7.2)A95%VR1.8V/(0.65)AChipsetAC1.3V/(0.5)AEMIPFC400VVR3.3V/0.14

8、(0.23)A1.8V91%VR0.9