DellPowerEdge T310 Technical Guide 30Table 6. Acoustical SpecificationsStandby: AC Power is connected to Power Supply Units but system is not turned on.DefinitionsIdle: Reference ISO7779 (1999) definition 3.1.7; system is running in its OS but no other specific activity.Stressed Processor: An operating mode per ISO7779 (1999) definition 3.1.6. The software MemBW4 isactivated to stress the processors.LwA–UL: The upper limit sound power levels (LwA) calculated per section 4.4.1 of ISO 9296 (1988) andmeasured in accordance to ISO 7779 (1999).LpA: A weighted sound pressure level. The system is placed in center of ISO7779 table and acoustictransducer is at front operator position, ref ISO7779 (1999) Section 8.6.1, Position P4.Prominent tone: Criteria of D.5 and D.8 of ECMA-74 9th ed. (2005) are followed to determine if discrete tonesare prominent. The system is placed in center of ISO7779 table and acoustic transducer is at frontoperator position, ref ISO7779 (1999) Section 8.6.1, Position P4.CPU: Intel Xeon 3450 2.66 GHzConfigurations @ 23 ± 2 °C OperatingModeLWA-UL(Bels)LpA(dBA)PROMINENTTONES RemarksDIMM PSU HDD RAID Card4 x 1GB 1 x 375Wcabled PSU2 x 3.5” SATA(500 GB/ 7200RPM)NoneIdle 5.5 41 None TypicalconfigurationStressedProcessor 5.5 41 None4 x 1GB 1 x 375Wcabled PSU4 x 3.5” SAS(450 GB/ 15600RPM)NoneIdle 5.6 42 NoneStressedProcessor 5.6 42 None4 x 1GB 1 x 375Wcabled PSU4 x 3.5” SAS(450 GB/ 15600RPM)PERC 6iIdle 5.8 43 NoneStressedProcessor 5.8 43 None4 x 1GB2 x 400WRedundantPSU2 x 3.5” SATA(500 GB/ 7200RPM)NoneIdle 5.6 42 NoneStressedProcessor 5.6 42 None4 x 4GB2 x 400WRedundantPSU4 x 3.5” SAS(450 GB/ 15600RPM)PERC 6iIdle 6.0 45 None MaximumconfigurationStressedProcessor 6.0 45 NoneStandby 1.6 17 NoneNotdependentuponconfiguration.