IBM 88554RU Installation Guide - Page 76
bus. However, those two adapters will both operate in PCI mode., In addition
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Important: A PCI-X and a PCI adapter can be installed in slots on the same bus. However, those two adapters will both operate in PCI mode. In addition, if you have a PCI-X adapter installed, you cannot hot-add a PCI adapter to the same bus. This is because with just the PCI-X adapter installed, the bus is running in PCI-X mode, and you cannot hot-add a PCI adapter into a bus that is in PCI-X mode. Table 3-5 summarizes the supported adapter speeds. Take into account the speed reductions when there are two adapters installed in a bus, as described above. Table 3-5 Supported adapter speeds in each slot Slot Bus Width (bits) Supported adapter speed (MHz) 1 A 32 or 64 33 or 66 2 A 32 or 64 33 or 66 3 B 32 or 64 33, 66, or 100 (133 as long as no adapter is in slot 4) 4 B 32 or 64 33, 66, or 100 (133 as long as no adapter is in slot 3) 5 C 32 or 64 33, 66, 100 or 133 6 D 32 or 64 33, 66, 100 or 133 The physical location of these slots in the server is shown in Figure 3-3 on page 63. 62 IBM xSeries 455 Planning and Installation Guide Eserver
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