Chapter 6. IBM System x3850 X5 and x3950 X5 231FPGA firmware flashed. The recommendation is to reflash the FPGA on your system x3850X5 after connecting the MAX5 to ensure that the FPGA levels on the MAX5 and server match.The server might fail to complete POST because of a significant difference in FPGA codebetween the MAX5 and the server. Correct this situation by flashing the FPGA through theIMM while the server is plugged into power but not powered off. An entry in the hardwareerror log reports when the FPGA levels of the MAX5 and the server do not match.The order of the flash types in Table 6-2 on page 230 is the sequence in which to perform theflashes. To update the server to this firmware or higher, you can use one of the followingchoices: When you have a compatible operating system installed, you can use the UpdateXpressSystem Packs Installer (UXSPI) tool that is described in 9.11, “UpdateXpress SystemPack Installer” on page 511. Regardless of the version of operating system or when an operating system is notinstalled, you can use the Bootable Media Creator (BOMC) tool that is described in 9.12,“Bootable Media Creator” on page 514. After establishing a network connection and logging into the IMM, use the firmware updatefunction, as described in 9.13, “MegaRAID Storage Manager” on page 521.For the latest firmware requirements for using the MAX5, see RETAIN tip H197572:http://ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-50857566.4.2 Installing in a rackThe QPI cables that are used to connect the MAX5 to the x3850 X5 are extremely short, stiffcables that can be easily damaged. For this reason, hardware ships with the MAX5 to allowthe MAX5 to be mounted to the x3850 through a series of brackets and rail kits.For cabling instructions, see the product publication IBM eX5 MAX5 to x3850 X5 and x3950X5 QPI Cable Kit and IBM eX5 MAX5 2-Node EXA Scalability Kit Installation Instructions,which is available at this website:http://ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-50848616.4.3 MAX5 cablesThe QPI cables that are used to cable the x3850 X5 and the MAX5 are extremely short andstiff. To plug the cables in, you must start the cable insertion on both sides of the cable intothe correct receptors on both the x3850 X5 and MAX5 at the same time.Use the following tips when plugging in the cables: QPI cables come packaged with reusable plastic boots that protect the fragile outsideedges of the cable connectors, as shown in Figure 6-7 on page 232. It is a good idea toUEFI update is a two-step process: The UEFI flash is a two-step process. When theUEFI flash completes, warm-reboot the server to at least the F1-Setup panel to allowthe second half of the UEFI flash to complete. Failure to perform the requiredwarm-reboot results in a corrupt version of the UEFI, which forces the server to bootinto the recovery page of the UEFI until the situation is corrected by following the UEFIrecovery process in the Problem Determination and Service Guide (PDSG).