IBM System x3850 X6 32Power suppliesThe x3850 X6 server supports up to four redundant power supplies. Standard models come with one, two,or four power supplies (model dependent). The following table lists the power supplies.Table 18. Power suppliesPart number Feature code Description Maximumsupportedx3850 X6Modelswhere used44X4150 A54D IBM 1400W HE Redundant Power Supplyfor altitudes >5000 meters4 A7x, A8x,A9x,All HANAmodels44X4152 A54E IBM 1400W HE Redundant Power Supply 4 -44X4132 A4R0 IBM 900W Power Supply 4 A4x, B1x,B3x,C1x, C4x88Y7433 A2EA IBM 750W High Efficiency -48 V DC PowerSupply4 -An AC power supply ships standard with one 2.8 m C13 - C14 power cord.Configuration rules are as follows:Power supplies must be in pairs (x3850 X6) or quads (x3950 X6), with the exception of model3837-A4x, where one power supply is supported.The AC power supplies can be mixed. Valid combinations for the x3850 X6 for example, are:Two 44X4132 and two 44X4152Two 44X4132 and two 44X4150It is not recommended you mix the two 1400 W options (44X4152 for low altitude and 44X4150 forhigh altitude) as you will nullify the high-altitude capabilities of 44X4150.You cannot mix the AC power supplies with the DC power supplyUse the Power Configurator to determine exactly what power your server needs:http://ibm.com/systems/bladecenter/resources/powerconfig.htmlIntegrated virtualizationThe server supports VMware ESXi that is installed on a USB memory key. The key is installed in a USBsocket that is on the primary I/O book inside the server. The following table lists the virtualization options.Table 19. Virtualization optionsPart number FeaturecodeDescription Maximumsupported41Y8298 A2G0 IBM Blank USB Memory Key for VMware ESXi Downloads 141Y8382 A4WZ IBM USB Memory Key for VMware ESXi 5.1 U1 1