IBM System x3950 X6 32Power suppliesThe x3950 X6 supports up to eight redundant power supplies. Standard models come with four powersupplies (model dependent). The following table lists the power supplies.Table 19. Power suppliesPart number FeaturecodeDescription Maximumsupportedx3950 X6Standard modelswhere used44X4150 A54D IBM 1400W HE Redundant Power Supplyfor altitudes >5000 meters8 All HANA models44X4152 A54E IBM 1400W HE Redundant Power Supply 8 -44X4132 A4R0 IBM 900W Power Supply 8 BAx, CAx, CCx88Y7433 A2EA IBM 750W High Efficiency -48 V DC Power Supply 8 -An AC power supply ships standard with one 2.8 m C13 - C14 power cord.Integrated 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 20. Virtualization optionsPart number FeaturecodeDescription Maximumsupported*41Y8298 A2G0 IBM Blank USB Memory Key for VMware ESXi Downloads 1 / 241Y8382 A4WZ IBM USB Memory Key for VMware ESXi 5.1 U1 1 / 2* 2 hypervisor keys are supported only if the x3950 X6 is configured to be partitioned, where the two halves of theserver operate as two independent four-socket servers. However, CTO orders can include only one hypervisor key.