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delta@clint:~$ cat /proc/driver/nvidia/agp/status
Status:          Enabled
Driver:          AGPGART
AGP Rate:        4x
Fast Writes:     Disabled
SBA:             Disabled
delta@clint:~$  cat /proc/driver/nvidia/agp/host-bridge
Host Bridge:     PCI device 1106:3099
Fast Writes:     Not Supported
SBA:             Supported
AGP Rates:       4x 2x 1x
Registers:       0x1f000207:0x00000104
delta@clint:~$ cat /proc/driver/nvidia/agp/card
Fast Writes:     Supported
SBA:             Supported
AGP Rates:       4x 2x 1x
Registers:       0x1f000217:0x1f000104