Memory expansion module features and specificationsThe following table contains a summary of the features and specifications of thememory expansion module.Table 4. MAX5 expansion module features and operating specificationsv Intel 7500 or 7510 scalable memorybuffer (depending on your model)with eight memory ports (fourDIMMs on each port)v Xcellerated Memory Technologyv EXA chip setv QuickPath Interconnect (QPI)architecture technology:– Four 6.4 gigatransfers (GT) persecond QuickPath Interconnectlinks (for up to 2microprocessors)– Three 10.0 GT per second EXAscalability linksv Scalability:– Connects to the x3850 X5 andx3950 X5 (4U) rack servers usingQPI cablesDIMMs:v Minimum: 2 DIMMs (two 2 GBDIMMs (4 GB total)v Maximum: 32 DIMM connectors(up to 512 GB or 1 TB when 32 GBDIMMs are available) of memory,depending on the DIMM size)v Type of DIMMs: PC3-10600R-999,1333 MHz or PC3-8500R, 1066MHz, ECC, DDR3 registeredSDRAM dual inline memorymodules (DIMMs)v Supports 2 GB, 4 GB, 8 GB, and 16GB (32 GB when available) DIMMsv Supports l.35 V (low-voltage) and1.5 V registered DIMMs (see “IBMMAX5 for System x memoryexpansion module” on page 20 formore information).Power supply:v One 675-watt (110 - 220 V acauto-sensing) standardv Supports up to two 675-watt (110 -220 V ac auto-sensing) hot-swappower supplies with built-in fansfor redundancy supportLight path diagnostics LEDs:v Board LEDv Configuration LEDv Fan LEDsv Link LED (for QPI and EXA links)v Locate LEDv Memory LEDsv Power-on LEDsv Power supply LEDs22 IBM System x3850 X5 and x3950 X5 Types 7145, 7146, 7143, and 7191: Installation and User's Guide