Graphics card not being detected

bought my config as earlier posted here ..
athlon ii x4 620
asus m4a785td v-evo
xfx ati 5850
vx 450
problem is my graphics card iss't detected .. i have disabled the onboard one .. please help am in deep trouble,please post with pics if possible ..
P.S:Will definitely post the pics .. hope it gets resolved soon.

Hav u connected the pc-e pwr connector to the gpu?
how ur monitor connected to ur gpu (DVI or VGA)?
does ur pc boot with the gpu?If not does it boot without the gpu?

Make sure the card is inserted in the slot properly and the fan is spinning. Also make sure the connector you are using is working and its not loose. Try a Different DVI connector if your card allows. If using converter, check that too. Seldom does it happen that the pc stats but the card doesnt get detected.

See if power cables/PCie cable is inserted firmly......U hhavent mentioned if GPU fan is running or not. If its not running PCIe cable is not inserted properly
if its running at high speed with no display......card is not properly inserted ~hGPU failure.

Reset BIOS to deafult and see if card is getting detected

How do you know its not detected ? Does it mean the you are not getting anything on the monitor or you are getting some error message on the monitor ?

Try the boot in Safe mode and choose VGA display mode if using Windows OS.
With VGA something should display on the monitor.

Else if nothing is being displayed, check you have connected the display cable to the graphics card port and not the motherboard port.

ati 5850 wont work with Asus M4A785TD-V EVO - Guru3D.com Forums
Is this true????

Dat's not possible.

If ur fan ain't spinning then maybe ur power cable for gpu is faulty.

5850 requires 2 PCIE connectors, VX 450 has only one. Hope you are using 2 molex connectors to power the other PCIE connector..
Also try the card on another PC to check if its working or not.

+1 this maybe the problem

Ya am using a molex connector .. tried resetting bios .. didn't work .. taking it to the shop today .. they probably will be telling it is not compatible .. please tell what to do next?do i need to change only the board or the board and proccy both??can this be avoided by any means?

^ where u from if u are at Chennai i will meet your place let me know if i can test your system

make sure update latest bios from asus website if there is asus bios @software update so it can automatic download and update it

You didn't mentioned whether your system runs normally without any GPU or not also GPU fan spins or not when connected.

There are two PCI-e slots in EVO try connecting GPU to first(Blue) slot and also try updating BIOS.

Try re-seating and check proper cable contacts which connects power to GPU.

my system runs ok with the onboard dvi .. i tried with both the ocie slots no help .. the fan runs at full speed but that's it .. display won't show up.
@Arun.P
I am not living in chennai ..

^ err ok

btw did u flash the latest bios version

make sure check the 6 pin power connect if stable connect to molex

also tried test the card in your friend system if stable with proper psu

Dvi slot of ur gfx can be faulty since ur onboard dvi is working and fan of gfx is spinning.

I know this may sound noob but have u tried disabling onboard IGP.