Chapter 4. IBM System x3690 X5 173 DIMM temperatures Altitude4.12 Power suppliesThis section covers the power subsystem of the x3690 X5 and the MAX5.4.12.1 x3690 X5 power subsystemThe x3690 X5 power subsystem consists of up to four hot-pluggable 675W auto-sensingpower supplies. The modules are independently powered by ac line cords.Most standard models have one power supply as standard; workload-optimized models havemore. See 4.3, “Models” on page 124 for details. One power supply is sufficient when the totalpower budget is less than 675W. Use the IBM System x and BladeCenter Power Configuratorto determine the power requirements of your configuration:http://www.ibm.com/systems/bladecenter/resources/powerconfig.htmlFor power budgets under 675W, installing a second power supply provides redundancy. Toinstall a second power supply, use the IBM High Efficiency 675W Power Supply, part number60Y0332, feature code 4782.Installing four power supplies ensures redundancy even with a fully loaded server. To installthe third and fourth power supplies, use the IBM 675W Redundant Power Supply Kit, partnumber 60Y0327. The power subsystem is designed for N+N operation and hot-swapexchange. Having four power supplies installed allows for N+N redundancy, where N=2 (thatis, a total of four power supplies where two power supplies are redundant backups for theother two).Table 4-36 shows the part numbers for the power supply options.Table 4-36 IBM 675W Redundant Power Supply Kit for x3690 X5The IBM 675W Redundant Power Supply Kit, option 60Y0327, includes the following items: Two 675W power supplies Two Y-cord power cables (2.8 m, 10A/200-250V, 2xC13 to IEC 320-C14) Two power cables (2.8 m, 10A/100-250V, C13 to IEC 320-C14) One power interposer cardThe Redundant Power Supply Kit includes a power supply interposer (power backplane). Theinterposer is a small circuit board that routes power from the power supply outputs to thesystem planar.Table 4-37 on page 174 lists the ac power input requirements.Option Feature code Description Use60Y0332 4782 IBM High Efficiency 675W Power Supply Power supply 260Y0327 Various aa. Use 4782 for the power supplies, 9279 for the power supply interposer, and 6406 for theY-cable.IBM 675W Redundant Power Supply Kit Power supply 3 and 4
