52 IBM Eserver p5 590 and 595 System Handbook Expansion unit back view Slots 1 through 20 are compatible with PCI or PCI-X adapters All slots support Enhanced Error Handling (EEH)– The Uffff.ccc.sssssss.Pn.Cm..... represents the Hardware ManagementConsole location code, which provides information as to the identify of theenclosure, backplane, PCI adapter(s), and connector. The ffff.ccc.sssssssin the location code represents the following:• ffff = Feature Code of the Enclosure (drawer or processor book)• ccc = the Sequence Number of the Enclosure• sssssss = the Serial Number of the Enclosure.Recommended system unit slot placement and maximums Extra High Bandwidth (EHB) adapter. See the Performance notes beforeinstalling this adapter. High Bandwidth (HB) adapter. See the Performance notes before installingthis adapter. For more information about listed adapters, see pSeries PCI and PCI-Xadapters. System unit information No more than three Gigabit (Gb) Ethernet ports per PHB. No more than three high bandwidth adapters per PHB. No more than one extra high bandwidth adapter per PHB. No more than one 10 Gb Ethernet port per two CPUs in a system. If one10 Gb Ethernet port is present per two CPUs, no other 10 Gb or 1 GbEthernet ports should be installed for optimum performance. No more than two 1 Gb Ethernet ports per one CPU in a system for maximumperformance. More Ethernet adapters may be added for connectivity.Figure 2-20 on page 53 and Figure 2-21 on page 53 show the possible systemconfigurations including the I/O frames.
