A. Its possible to disable bus mastering on the 3C590 to alleviate any possible busmaster contention. To disable perform the following:
- Start the registry editor (regedit.exe)
- Move to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\EL59X1 (if you have multiple adapters you will also have EL59X2 etc)
- Select the Parameters key (if the key does not exist create it)
- From the Edit menu select New - String value
- Enter a name of Busmaster and press enter
- Double click the new value and set to 'NO' (don't type the quotes)
- Click OK
- Restart the computer
Upon restart there should now be a system event:
"Busmaster support has been turned off for slot XX."
A newer version of the driver can be found at http://support.3com.com/infodeli/tools/nic/3C590.htm#ship
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