Chapter 1 Getting Started© National Instruments Corporation 1-7 NI 8350 User ManualOptional EquipmentMemory UpgradesYou can upgrade the NI 8350 memory to a maximum of 4 GB.The NI 8350 supports dual-channel DDR 400/333 SDRAM unbufferedmemory in four 184-pin DIMM sockets. The NI 8350 supports non-ECCand ECC memory.Note National Instruments has tested and verified that the DDR DIMMs we sell work withthe NI 8350. We recommend you purchase your DDR DIMM modules from NationalInstruments. Other off-the-shelf DDR DIMM modules are not guaranteed to workproperly.Rack Mount KitA rack mount kit is included for mounting the NI 8350 chassis into a 19 in.instrument cabinet.USB Floppy Disk DriveA USB floppy drive is available from National Instruments, part number778492-02.NI 8350 OverviewThe NI 8350 is a 1U high rack-mountable PC with a remote controller fora PXI or VXI system. It is designed for PC control of a PXI or VXI test andmeasurement system using a minimum of rack space. A cable and PXI orVXI remote controller are included for connection to a PXI or VXI chassis.The NI 8350 has an Intel Pentium 4 processor with hyperthreadingtechnology for high performance. When hyperthreading technology isactivated, the system looks and behaves like a multiprocessor system. Thisallows multithreaded software to better use the CPU. This often increasesthe throughput of multithreaded applications, but single-threadedapplications may run more slowly. Hyperthreading is enabled by default inthe NI 8350 BIOS. To disable hyperthreading, refer to the BIOS Setupsection of Chapter 2, Installation and Configuration. A hyperthreadedsystem must also have a hyperthreading-capable OS such as Windows XP,which ships with the NI 8350. For more information about hyperthreading,refer to ni.com/support.