HIS 5870 In Xfire - Fan noise

[westylakey]

Hi.

I recently bought a XFX 5870 to go crossfire with my HIS 5870.

I don't know if it's just coincidence or what but the HIS started making a strange fan noise. so I swapped the slots of the cards so that the HIS is on the bottom.

It is still the same and is quite loud.

I recorded it on my phone so you can hear the noise.

Anybody else heard of this or had this problem?
I did send my 1st HIS back because it had a noisy fan but no where near this loud.

 

[westylakey]

Just tested each card individually and the HIS still makes that noise where as the XFX is near enough silent when not in use.

I think the fact that when they are in crossfire it just gets echoed that little bit more.

 

[westylakey]

Card is now being RMA'd. Anybody know what will most likely happen? because they no longer sell the card? & the trouble I've got is I have not long bought a 5870 for xfire!
Unless it gets fixed.