| A: | Depending on which card you are using there are only certain addresses which can be used for a 32K BootROM. The addresses which may be used also vary upon the size of the BootROM. For a 32K BootROM the CA000h address is not supported. The following tables give examples on which address may be used with certain cards.
For the PCNet -ISA Card (Am79c960) one of these following configurations must be followed for any size BootROM:
Port Interrupt DMA BootROM Address
300h 3 5 C8000h-CBFFFh
320h 4 6 CC000h-CFFFFh
340h 5 7 D0000h-D3FFFh
360h 9 3 D4000h-D7FFFh
For the PCNet-ISA+ Card (Am79c961) and the PCNet-ISA II (Am79c961A) the following addresses may be used in conjunction with the supported size BootROM:
Address Size Supported Location (HEX) ( K bytes)
C0000 8,16,32,64
C2000 8
C4000 8,16
C6000 8
C8000 8,16,32
CA000 8
CC000 8,16
CE000 8
D0000 8,16,32,64
D2000 8
D4000 8,16
D6000 8
D8000 8,16,32
DA000 8
DC000 8,16
DE000 8
Note: We do not recommend using the C0000-C8000 range due to the fact that the video card is usually mapped to that range.
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| Q: | I ran AMInstal to configure my PCnet -ISA II (or -ISA+) based card to port 300, Interrupt 5 and DMA 5. When I loaded the PCnet driver, the driver said that it could not find the device. Subsequently, I rebooted the system and reran AMInstal. To my surprise, I see that the resources (Port, INT, DMA) I had previously assigned have changed. How can I retain my resource settings and solve the problem of not finding the device?
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| A: | 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, go to your system BIOS then go to 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 of BIOS available for your system. If you are running DOS/Windows®, install Intel's "ICU" utility for DOS/Windows to add software PnP capability to your system. PCnet -ISA II should be working fine with ICU under DOS/Windows.
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