Packardbell help

I have a Computer Brand is a Packard Bell Legend Supreme 1940, Model # A950-TWR,
S/N: P0830371 94+, Could not find the Mfg number. But did find Part Number
of 890498.I am looking to install a new video card and need to disable the
onboard one. The support for Packardbell sent me this responce: “Dear Customer:
There are no jumpers to disable you Video… This motherboard has an Integraged
Video chipset and cannot be disabled in the hardware.” From this I get that there is not hardware jumper but is there a bios setting that can be changed.