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| | | | | AMD Development Boards and RDKs |
| | | | | | | General Product Information |
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| PCnet™ Family Software FAQs - General | I have a PCnet™ ISA+ (79C961) or ISA II (79C961A) based card. I am running AMInstal to configure the resources on the card. When I try to load a PCnet driver, I get a message saying that the system cannot find the device. What should I do?
I have an ISA based (79c960, 79c961 or 79c961A) card. On some systems with newer PCI chipsets, I get repeated transmit failures or I can only transmit small files. What's the cause of this problem?
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| | Q: | I have a PCnet™ ISA+ (79C961) or ISA II (79C961A) based card. I am running AMInstal to configure the resources on the card. When I try to load a PCnet driver, I get a message saying that the system cannot find the device. What should I do?
| | A: | Most likely you are running into a configuration problem.
- If you know your system is not a PnP system, please run MSD.exe available in DOS 6.2x to check the system resources. Make sure your resources setup for PCnet -ISA II card do not conflict with any other devices. Use AMInstal to configure PCnet -ISA II to proper PORT, INT and DMA values.
- If your machine is a PnP system, we suggest you to run AMInstal to set the ISA II card to PnP mode. Let the system work out the resources configuration with ISA II card.
If you still want to manually configure the ISA II card, you need to go to the system BIOS setup and go to the PnP configuration option to set aside the interrupt value you are going to assign to the ISA II card. If your system BIOS does not have the PnP configuration option, you need to contact your system vendor to see if there is a newer version BIOS available for your system. If you are running DOS/Windows® you can install Intel's "ICU" utility for DOS/Windows to add the PnP software capability to your system. The PCnet -ISA II should work fine with ICU under DOS/Windows.
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| | Q: | I have an ISA based (79c960, 79c961 or 79c961A) card. On some systems with newer PCI chipsets, I get repeated transmit failures or I can only transmit small files. What's the cause of this problem?
| | A: | On some newer PCI based systems, the PCI chipsets do not provide enough bandwidth to ISA Bus Mastering devices. This results in transmit underruns and thus the transmit problems seen above. In some cases changing the "Bustimer" parameter to the maximum value of 13 might provide some help. However, in most cases the problem is not completely resolved.
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