Chapter 3. Product information 101Table 3-26 shows which components are hot-swap and which are not.Table 3-26 Hot-swap capabilitiesFor additional information about hot-swap capabilities of the Optional I/O Books, see 3.14,“Hot-swap adapter support” on page 91.3.22 Power subsystemThe x3850 X6 server supports up to four power supplies and the x3950 X6 supports up to 8power supplies. Power supplies are hot-swap. Options available are listed in Table 3-27.Table 3-27 Power supply optionsEach installed 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 ofmodel 3837-A4x, where one power supply is supported. The AC power supplies can be mixed. For example, these are valid combinations for thex3850 X6:– Two 44X4132 and two 44X4152– Two 44X4132 and two 44X4150Component Hot-swap abilityCompute Book NoStorage Book NoPrimary I/O Book NoOptional I/O Books YesDisk drives YesCompute Book fans YesPrimary I/O Book fans YesPower supplies YesPartnumberFeaturecodeDescription Supportedquantitiesx3850 X6Supportedquantitiesx3950 X6Modelswhereused44X4132 A4R0 IBM 900W Power Supply 2, 4 aa. The only exception to the rule of a minimum of two power supplies is model 3837-A4x which has a minimum of 1.4, 8 A4x, B1x, B3x, C1x,C4x, BAx, CAx, CCx44X4152 A54E IBM 1400W HE Redundant Power Supply(not certified for altitudes above 5000 m)2, 4 4, 8 -44X4150 A54D IBM 1400W HE Redundant Power Supplyfor altitudes above 5000 meters2, 4 4, 8 All HANA models88Y7433 A2EA IBM 750W High Efficiency -48 V DC PowerSupply2, 4 4, 8 -