Hardware Installation and User’s Guide15Hardware InstallationJ1 - IOP mode select jumper block: This jumper is used to place the IOP in reset, whichenables the flash chip to be programmed to recover resident firmware (FW). SeeAppendix A for a detailed description of jumper J1.J4 - PCI bus speed: Leave this jumper in the default position (pins 2-3 to auto-negotiate33/66 Mhz) unless instructed to do otherwise by customer support or a specificationupdate.FRU Jumper - IOP mode select jumper block: This jumper is used to place the IOP inreset, which enables the flash chip to be programmed to recover resident firmware (FW).See Appendix A for a detailed description of the FRU jumper.PCI Bus Speed- PCI bus speed: Leave this jumper in the default position (pins 2-3 toauto-negotiate 33/66 Mhz) unless instructed to do otherwise by customer support or aspecification update.Table 2-1. Controller Jumper Settings GDT8546RZJumper Block Jumper Position DefinitionJ1Jumper on pins [1-2] IOP is in reset mode with firmware recoveryenabled.Jumper on pins [2-3] IOP is in normal run mode.No jumpers IOP is in normal run mode.J4Jumper on pins [1-2] PCI bus is forced to 33 MHz.Jumper on pins [2-3] PCI bus auto-negotiates 33 MHz or 66 MHz.No jumpers PCI bus auto-negotiates 33 MHz or 66 MHz.Tabelle 2-2. Controller jumper Settings GDT8586RZBlock Nummer Position DefinitionFRU JumperJumper on pins [1-2] IOP is in reset mode with firmware recoveryenabled.Jumper on pins [2-3] IOP is in normal run mode.no jumpers IOP is in normal run mode.PCI Bus SpeedJumper on pins [1-2] PCI bus is forced to 33 MHz.Jumper on pins [2-3] PCI bus auto-negotiates 33 MHz or 66 MHz.No jumpers PCI bus auto-negotiates 33 MHz or 66 MHz.