Yes, you can.
You have; One PCI Express x16 slot (PCI Express Bus SPEC V1.0 compliant).
PCI-E 1.0 X16 is good enough for that card no need for 3.0/2.0 X16, will still run to it's best capability.
That card is nothing special, but it is good enough. Your PC is old, suggest upgrading down the road.
but the bus standard of that card is pci 2.0 x16