Dell External OEMR R410 Technical Guide - Page 27
Maximum Input Amps, Acoustics
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Dell 4.4 Maximum Input Amps The power supply is equipped with automatic input voltage detection. Non-redundant power supply: 7.5 - 3.8 A at 100-240 VAC, 50/60 Hz Redundant power supply: 7 - 3.5 A at 100-240 VAC, 50/60 Hz 4.5 Acoustics The PowerEdge R410 has balanced acoustic and thermal performance to support a fully-configured system and meets the Dell Acoustic specification AC0142 Rev. A02 category II-D requirement. The R410 has an aluminum-base passive heat sink with two embedded heat pipes for the processor cooling and four 40x56mm dual-rotor fans exhausting air through heat sink and out of the system. In SKU2 (RDN PSU SKU), there are two extra 40X56mm dual-rotor fans in the front of PDB for redundant power supply cooling. The 40x56mm dual-rotor fan has an external PWM speed control, and it is integrated into motherboard and power distribution unit (PDU). The thermal sensor on the front control board senses the ambient temperature and adjusts the fan speed accordingly. In a normal office environment, the fans spin slower, resulting in low acoustics. The fan RPM begins to ramp up with ambient, CPU, IOH, and DIMM temperatures changes and in different system configurations (e.g., different CPU and RAID card installation) to meet cooling requirements at higher ambient temperatures. Table 8. R410 Acoustical Information Configurations @ 23 ± 2 °C CPU DIMM HDD 1 x Intel 1.86 GHz CPU 1 x 2GB 1 x 160GB SATA 7.2krpm 2 x Intel 2.26GHZ CPU 8 x 1GB 2 x 250GB SATA 7.2krpm 2 x Intel 2.8GHZ CPU 8 x 8GB 4 x 450GB SAS 15krpm 2 x Intel 2.8GHZ CPU 8 x 8GB 4 x 450GB SAS 15krpm PSU PCI Card 1 x 480 W None Non-redundant 1 x 480 W 1 x SAS6/iR Non-redundant 2 x 500 W Redundant 2 x 500 W Redundant 1 x SAS6/iR 1 x PERC 6E 1 x 10GB NIC 1 x PERC 6E 1 x Embedded SAS6i/R Operating Mode Idle Stress Idle Stress Idle Stress Idle Stress LWA-UL (Bels) 5.8 5.8 5.8 5.8 6.3 6.4 6.8 6.9 PowerEdge R410 Technical Guide 27