Need help replacing cooler on ati 4850

[gameroms]

here is the card i have



and im installing a t-rad 2 with 2 - 92mm fans, here are some pics.












now to my problem, if i wire the 2 - 92mm fans to the 12v rail i get the blue screen of death on xp, but if i plug in the stock fan the card works perfect, can someone tell me how to hook up the       2 - 92mm so that the card will work and stop giving the bsod, so i dont need stock fan plugged in.  the 92mm fans are 3 wire.

thanks for any help.

[blackburn]

is there a place on the card to plug the fan in? if so have u tried hooking at least one fan up to it?

[whitetop]

i hook mine up to the motherboard that way you get more power if you use the card port your draining the power from the card

[gameroms]

ok, i uninstalled everything.

so i put gpu in no software, no drivers, and it works.

install driver - still works

but when i install catalyst control center it starts doing same thing again.

[gameroms]

whitetop, i said i have the 2 - 92mm fans wired to psu
not the card.

but i have to plug stock fan into card for it to work, and not give me the blue screen of death.

[aZiZ1]

Last time i checked the catalyst control center monitors the power usage and to make sure if the fan is working, the temp probe on the graphic's card could be sending wrong signals/or when the control center doesnt detect power usage from the card it thinks the card is malfunctioning, so it "bsod's" to ensure the card doesnt burn up.