Help, VGA gak kedetect

[Motherboard360]

Temen ane beli VGA baru (GF8400), tapi ga kedetek di OSnya.

Waktu install drivernya bilang kalo ga ada hardware yang support.

Waktu liat di device manager, PCI slotnya kena error "code 12: this device cannot find enough free resource that it can use"



MB: P5RD1VM

Proc: P4 LGA775 3GHz

RAM: DDR 2GB

BIOS: AMI

PSU: Stock 450W

1x HDD

1x Optical



Pake OS XP/Vista/7 tetep g detect.

Kalo ada yang pengalaman soal masalah kaya gini, mohon beri pencerahan yah