Product features
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Q
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!!!PCI Resource ERROR!!! may display in BIOS when populated 12* add-on card on the system. |
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It's expected behavior because the X86 system has a 64KB I/O space limitation. Also there is an allocation 4KB alightment request when BIOS allocates system I/O space for the PCIe card. For example, if the PCIe card requests more than 2KB I/O space, we still reserve 4KB space for this card. |
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Because of these two requirements, in this case, there are 12 PCIe add-on cards installed on the system, the I/O space requirement already exceeds the 64KB limitation. So the system will report this information on the BIOS menu to inform the user. |
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If a PCIe card is without allocated resources, it might be ineffective. It’s dependent on the card designed. |
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If I/O space is required on this card and we can’t allocate space for it, the device doesn’t work well. |
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That’s why we need report this on BIOS menu to let user know. |