Poor 3D Performance and Hissing Sound?

[InSuboRdiNaTioN]

Just recieved a PNY FX5900 (non-ultra today).
I notice that whenever I scroll, there is a clicking/hissing type sound that comes from the card.... it also does it when running 3DMARK 03 and being under a heavy load.
Is this a documented problem, or just from freak occurence as a result of a defective card?

Also, I only got 2,977 3D Marks. It's this low given my system specs?
Athlon XP 2400 overclocked to 2.17ghz (from 2.0)
Asus A7V333, Sound blaster Audigy, Win XP SP1 (fully patched), Video card overclocked to 460/950 (from a stock of 400/850)

2X AA and 2X AF enabled along with highest quality settings.

Thanks for any help!

 

[Auric]

Sounds defective to me. However the source of such noise could be the power supply if it is overloaded. For comparative benchmarks you are best running 3DM at default settings and consulting their database.