gigabyte gtx 750 ti 2048 mb , noise within my computer

[razieee]

Good evening community!

First of all my specs:
CPU:fx 6300 6 core
ram:4gb hyperx 1333mhz
and the new boy : gtx 750 ti gigabyte
psu:some kind of 400watt psu but its not a"branded" one
HDD:beleive me thats nearly a 7 year old HDD samsung still running! 500 gig by the way.

Soo i bought a new gpu into my system . the old one were a gt 9600 512 . i tried it works perfectly tried AC:unity it works like charm for me.
But i have one single problem .. when my system is under heavy pressure i mean AAA categ games i have some kind of noise within my system but i cannot decide it comes from the PSU or HDD or somewhere .. and sometimes i open a new website for instance.
im really afraid of that hardware which making me these noises are going to kill one hardware or all of my system. Please guys help me if i have to a buy a new psu or a new HDD i got some money soo i able to upgrade.
Everyone whos give me an answer i would really appreciate!

And thanks all of you!

 

[gytisxp]

Oh yeah thats coil whine
edit : heres a video http://youtu.be/T7HsXHqtxrI

 

[razieee]

In meantime i found a Corsair VS450 PSU its kind a cheap one an i suppose it should be enough for me . What do you guys thing it will be enough ?

 

[razieee]

gytisxp : So i have to change the gpu or the psu ? im afraid my english is not that good to understand clearly that video , sorry :/

 

[gytisxp]

gytisxp : So i have to change the gpu or the psu ? im afraid my english is not that good to understand clearly that video , sorry :/

Nothing will make the noise go away, the gpu causes it and its normal. But a psu may be a good upgrade for you either way.
Like a Straight power E9 400 Watt ( don`t cheap out on the psu )