IBM 610 Technical Overview And Introduction

Also see for 610: Manual of operation

14 pSeries 610 Models 6C1 and 6E1 Technical Overview and Introduction2.2.1 Memory boot time deconfigurationMemory boot time deconfiguration is a function implemented in the service processorfirmware for removing a memory segment or DIMM from the system configuration at boottime. The objective is to minimize system failures or data integrity exposure due to faultymemory hardware. The memory segment or DIMM that is deconfigured remains offline forsubsequent reboots until the faulty memory hardware is replaced. This function provides theoption for the user to manually deconfigure or re-enable a previously deconfigured memorysegment or DIMM using the Service Processor menu.Memory can also be decreased with AIX using the rmss command. This is useful for certainbenchmark simulations.2.2.2 Memory interchange with other systemsThe 2x256 MB DIMMs (# 4120) or 2x512 MB DIMMs (# 4121) options can be interchangedwith the RS/6000® Models 44P-170, 44P-270, and the IBM ^ pSeries 640 ModelB80.2.3 System busThe 6XX bus or system bus is optimized for high-performance and multiprocessingperformance. The bus is fully parity checked and each memory or cache request is rangechecked and positively acknowledged for error detection. Any error will cause a machinecheck condition and is logged in the AIX error log. The system bus speed is operated at 93.75MHz with the 375 MHz processor card (1:4 ratio), and at 90 MHz with the 450 MHz processorcard (1:5 ratio).2.3.1 Bus bandwidthThe following are the theoretical maximum bandwidths, as applicable for an 2-way 450 MHzSMP configuration: Memory bandwidth: 1.44 GB/s Processor bandwidth: 1.44 GB/s Bandwidth of the PowerPC® 6xx bus used to the I/O interface: 528 MB/s2.4 PCI-bus, slots, and adaptersThe IBM ^ pSeries 610 Models 6C1 and 6E1 are compliant with Revision 2.1 of theperipheral component interconnect (PCI) specifications and implement two peer PCI busses:a 32-bit data bus operating at 33 MHz and a 64-bit bus operating at 50 MHz. There are fivePCI slots available. Slots one and two are 64-bit capable and can run up to speeds of 50MHz. Slot three is 64-bit capable, and slots four and five are 32-bit. Slots three, four, and fiverun at 33 MHz.A variety of graphics, SCSI, Fibrechannel, LAN, WAN, asynchronous, and SSA adapter cardscan be installed in the Models 6C1 and 6E1.Note: Memory cards can physically be removed only when the power is turned off to theentire system.