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Rig detecting card ok, but not SLI

Tom|Nbk

Tom|Nbk

Tom|Nbk

Soldato
Joined
12 Mar 2006
Posts
23,070
Location
N.E England
Forgot just how stressful multi gpu can be, just got my new 480, hooked everything up, installed the bridge and straight away issues :rolleyes:

Basically my machine will pick the other 480 up perfectly, installs and shows two gpu's in device manager it also shows available for physx use. It won't however let me use the 480 as an SLI card.

GPUZ is showing card 1 as 1x bus speed and card 2 at the full 16x bus speed so something obviously isn't right.

Worth a windows wipe?

Anyone shed a light?
 
sorted, this is massively embarrassing but...

I'd installed the card into the 1x mini PCI-E slot in my hurry after work. This was revealed after I removed the first card and saw :o

Been a long day :rolleyes:
 
Nevermind it's working 100% now. Thanks anyway

Works fine with my PSU but my PSU doesn't half ramp up the fans so I reckon I'm going to have to get a new one unless I use headphones for gaming it'll drive me insane :p

Pulling 640w in BF3 Rroff.
 
Last edited:
I think its the GPU fans.

My power consumption is still 100w off continuous. Thats in BF3 also which is a very graphically demanding game etc.
 
Aye i'll look into some ghetto mods :D Pretty sure its not the psu most reviews say the psu hardly makes any extra noise even at 750w
 
Pretty sure it's the PSU fan thats spinning up, I still have a fair bit of headroom yet so I didn't expect to spin up as much as it does.

I guess it's more to do with the heat rising through the case. Need to think of how I can cool the case down some more.

I'm fairly sure the PSU is coping fine looking over consumption figures and I've played all night!
 
Think I'm going to swap out the PSU, it will still fetch pretty penny which should make an upgrade reasonable. The noise is definitely coming from here. Seems a shame, it can power it just fine >,<

Recommendations for a modern day TX750w Rroff?

Had this for a while now.
 
Annoying that had I just plumped to an 850 a year or so back when I got this it would be fine!

I need something which will take heavy load and be very quiet
 
current psu noise levels..

tx750w_noise.jpg


I reckon this is whats making a racket since I'm loading her up about 660w avg
 
Then is it the PSU making the racket or the gpus, I'm mega confused now!

I honestly can't tell where it's coming from in my rig :p
 
I really didn't have it in mind to spend money. I'm moving house on the 21st :p

Annoying as hell that I'm about 100w away from the roof of my PSU yet the noise is letting it down and it doesn't seem like I can get THAT much improvement with other PSU's out there!
 
Rroff said:
GPU fans back off very quickly after coming out of a game (with stock profiles), whereas PSU will take a lot longer so if the noise cuts out very soon after alt+tabbing out or quitting a game its probably GPU but if it continues for some time more likely to be CPU or PSU fan.
Click to expand...

Could possibly be the CPU fan, needs investigation!
 
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