Can't get my Ati 5850 working

[motiondnb]

Just plugged my 5850 into my pc, already have a 4870 installed. Can't get my pc to recognise the new card, installed the drivers, still nothing. What could be wrong?

*OVERCLOCKED* Intel Core i7 920 D0 Stepping (SLBEJ) 2.66Ghz @ 4.00GHz Max /
Gigabyte EX58-UD5 Intel X58 Motherboard /
Corsair 6GB DDR3 PC3-12800C8 1600MHz DDR3 Bundle
x 2 - Seagate Barracuda 7200.12 500GB SATA-II 16MB Cache - OEM (ST3500418AS)
x 1 - Corsair TX 750W ATX SLI Compliant Power Supply (CMPSU-750TXUK)
x 1 - Antec 902 Nine Hundred Two Ultimate Gaming Case - Black (No PSU)
x 1 - Microsoft Windows 7 Professional 64-Bit - OEM (FQC-00765)

 

[-Aura-]

I could have misunderstood this:

"already have a 4870 installed"

Are you trying to add the new card to another slot whilst still keeping the 4870 in also?

 

[Kyaw25]

Remove the 4870?

You cant run a 5850 and 4870 in crossfire ¬_¬

If not, do a driver sweep and install new drivers.

 

[motiondnb]

Yeh I was trying to add the new one Eilat still having the old one in. I have now removed old one, only have new one plugged in but nothing comes up on the screen when connected to hdmi output or dvi output. Haven't tried the Other output on it.

 

[Vince]

Have you plugged in the right 2x6pin power connectors?

 

[motiondnb]

Yeh they both have pci-e written on them

 

[MeMeMeMe]

Have you got the 5850 in the same slot your old 4870 was in? If not, try that.

 

[motiondnb]

Yep it's in the same slot. I'm racking my brains

 

[TropicLightning]

When you boot with only the 5850 installed are you seeing the BIOS post screens?

 

[motiondnb]

Nope, not seeing bios post screens. Looking at the error codes in the motherboard it's coming up with FF which means there are no problems.

 

[Supernaut91]

test the new gpu in another machine if at all possible, if still no display maybe an issue with the 5850 itself.

 

[motiondnb]

right, just took the card down my local pc shop where i visit a bit and the guy there reckons the card has water damage. Hows that possible when i havent got it near water and its new out the box. Am i going to have difficulty sending this back because overclockers are going to think its my fault. This situation is lame.

 

[Vince]

water damage, that is harsh! Speak to OCuk and see what they say failing that you could whip out the heat gun and give it a bash. I would be very supprised to see water damage on a bran new card though. Seems very odd.

 

[motiondnb]

alright gave them a ring, he reckons that residue is left on the pcb but its not water damage, just a broken card. going to send it back. thanks for everyones time.