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2 GTX 580s w/ Asus SLI bridge, no SLI options in CP

Tags:
  • Nvidia
  • Asus
  • Gtx
  • SLI
  • Graphics
Last response: in Graphics Cards
March 17, 2011 10:06:36 PM

Hi all,

So I checked to make sure both cards work individually and they do. I installed both of them, put on the SLI bridge and powered up, installed latest drivers. Windows 7 64-bit reads both cards, nvidia CP acknowledges both cards as well, but I have no option to enable, monitor or test SLI anywhere.

Please help.

More about : gtx 580s asus sli bridge sli options

a c 224 Î Nvidia
a b Ĉ ASUS
March 17, 2011 10:07:54 PM

Motherboard?
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March 17, 2011 10:23:28 PM

Sorry I thought I updated my sig to have my specs in it.

Asus Crosshair IV Extreme.
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Related resources
a b Î Nvidia
March 17, 2011 10:38:20 PM

I found this:

"Setting up the dual cards requires a bit of extra work, but it’s not too bad. In order to run the multi-GPU setup, users would have to first install the graphic cards drivers, then install the HydraLogix driver. Users who wish to update the graphic cards driver must also uninstall the HydraLogix driver first before uninstalling the graphic card driver."



http://www.bjorn3d.com/read.php?cID=1983&pageID=10052
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March 17, 2011 10:39:45 PM

xripx said:
Sorry I thought I updated my sig to have my specs in it.

Asus Crosshair IV Extreme.
You cannot use SLI with an AMD chipset, period. Nvidia makes its driver check for "compatible" hardware before it will enable the feature. "Compatible" simply means Nvidia has been paid for it.

Most Intel motherboards now support SLI because the motherboard manufacturers pay Nvidia for a BIOS tag that the driver seeks before it enables the feature. AMD doesn't have that luxury. If you wanted an AMD CPU with SLI, you should have purchased an Nvidia 980a SLI motherboard.

HydraLogix "N-Mode" works on motherboards that have this bridge, enabling two Nvidia graphics cards to work together. But unlike SLI, HydraLogix is not supported by many games and doesn't offer the big performance gains.

http://www.tomshardware.com/reviews/lucidlogix-hydralog...
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a c 224 Î Nvidia
a b Ĉ ASUS
March 17, 2011 10:40:26 PM

That's a crossfire board and is not SLi capable, unless you are going to resort to some sort of BIOS hack SLi is not going to happen.
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a b Î Nvidia
March 17, 2011 10:41:07 PM

^His board has a lucent hydralogix chip, so yes, he can.
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March 17, 2011 10:53:05 PM

so basically, I should go return my second 580?
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a c 224 Î Nvidia
a b Ĉ ASUS
March 17, 2011 10:53:37 PM

benski said:
^His board has a lucent hydralogix chip, so yes, he can.

I don't have as much faith in the Lucid chip as you appear to and the the OP says he can't run SLi, which is why he's posting in the first place.
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March 17, 2011 11:01:51 PM

benski said:
^His board has a lucent hydralogix chip, so yes, he can.
Wow, you sound awefully certain for someone who's completely wrong.

His motherboard has a HydraLogix chip, not an NF200, and Nvidia will not allow SLI to be enabled on it.
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March 17, 2011 11:16:24 PM

OK so final answer is I should go return my 580 while I still can, right?
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March 17, 2011 11:22:15 PM

xripx said:
OK so final answer is I should go return my 580 while I still can, right?
Your options are:
1.) You can keep the card and run HydraLogix N-Mode. It's not as fast as SLI but usually faster than a single card. It works with some games, but not others.
2.) You can keep the card and replace the motherboard for something that supports SLI.
3.) You can return the card.
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a c 224 Î Nvidia
a b Ĉ ASUS
March 17, 2011 11:23:31 PM

xripx said:
OK so final answer is I should go return my 580 while I still can, right?

It may well be the best option, sticking to ATi/AMD for dual cards for as long as you have that mobo also seems to be your only option.
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a b Î Nvidia
March 17, 2011 11:46:59 PM

Crashman said:
Wow, you sound awefully certain for someone who's completely wrong.

His motherboard has a HydraLogix chip, not an NF200, and Nvidia will not allow SLI to be enabled on it.

Well OK if you don't want to call it SLI because that's Nvidia's marketing term then ok, you're correct, you can't enable SLI.

And I don't think the lucent chip itself has any disadvantage electrically to an SLI certified board, it's just a licensing issue, so with mature drivers the lucent chip is likely to give the same performance as SLI. Personally I wouldn't buy one and be a guinipig while they try and get it right, but I also wouldn't recommend someone ditch there motherboard and videocards without at least presenting it as an option.
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a c 224 Î Nvidia
a b Ĉ ASUS
March 17, 2011 11:52:22 PM

benski said:
Well OK if you don't want to call it SLI because that's Nvidia's marketing term then ok, you're correct, you can't enable SLI.

And I don't think the lucent chip itself has any disadvantage electrically to an SLI certified board, it's just a licensing issue, so with mature drivers the lucent chip is likely to give the same performance as SLI. Personally I wouldn't buy one and be a guinipig while they try and get it right, but I also wouldn't recommend someone ditch there motherboard and videocards without at least presenting it as an option.

Drivers that may never turn up and chips that may be replaced with newer models because the older ones cannot fulfill certain promises is the reason why the Lucid chip is just an interesting idea rather than a viable option.
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a b Î Nvidia
March 18, 2011 12:02:23 AM

^Probably true, but I doubt the first geforce drivers that supported SLI worked on alot of programs either. I guess it's something that is better in theory than in practice at this point. It sure would be nice though if something like this would become a viable alternative to brand specific licensing.
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March 18, 2011 12:04:24 AM

xripx said:
OK so final answer is I should go return my 580 while I still can, right?

Psycho also linked you to a driver hack you might want to try before returning anything.
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March 18, 2011 1:03:48 AM

SOLVED! The patch that Psycho linked to worked. Thank heavens for hackers. Thanks for the learning experience, fellas.

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May 1, 2011 4:40:55 AM


Please I face the same problem , what is "Psycho linked"
can any one help me

my system info :
2 GTX580 sc and Asus IV Extreme motherboard and windows 7 64
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May 1, 2011 5:01:28 AM


thanks xripx for your fast response
and I wish to ask about your pc, is the SLI work now fine with no problems .


and still I wonder why the nvidia not provide optimal solutions, instead of let the customers search for solution

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May 1, 2011 6:39:55 AM

adelnet said:
thanks xripx for your fast response
and I wish to ask about your pc, is the SLI work now fine with no problems .


and still I wonder why the nvidia not provide optimal solutions, instead of let the customers search for solution
Nvidia made chipsets for AMD processors, why would they want to support a competing chipset and undermine their own business?
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May 1, 2011 8:44:36 AM

Crashman said:
Nvidia made chipsets for AMD processors, why would they want to support a competing chipset and undermine their own business?


And way Asus IV Extreme motherboard 1155LGA says I'm supporting SLI?
why nvidia allow asus motherboard to tell customer you can make SLI in LGA1155 processor

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May 1, 2011 8:49:56 AM



This from New P67 B3 Revision Asus IV Extreme motherboard


SLI/CrossFireX On-Demand

Why choose when you can have both?

SLI or CrossFireX? Fret no longer because with the ROG Maximus IV Extreme, you´ll be able to run both multi-GPU setups. The board features SLI/CrossFireX on Demand technology, supporting SLI or CrossFireX configuration. Whichever path you take, you can be assured of jaw-dropping graphics at a level previously unseen.
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May 1, 2011 10:00:12 AM

adelnet said:
And way Asus IV Extreme motherboard 1155LGA says I'm supporting SLI?
why nvidia allow asus motherboard to tell customer you can make SLI in LGA1155 processor


You never said it was a "Maximus" motherboard. The original poster was having a problem with SLI on a Crosshair (AMD) board, and I responded to a question that stated "I have the same problem".

Nvidia supports SLI on LGA-1155 and LGA-1156 processors, through the PCIe controller on the CPU. If you want to enable SLI on the x4 slot, you have to use the same hack for a similar (but not identical) issue. I've no idea however why you would want to run 2-way SLI using the x4 slot.
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May 1, 2011 10:41:51 AM


ok I'm sorry , I have "Maximus" motherboard and I face same problem
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a c 224 Î Nvidia
a b Ĉ ASUS
May 1, 2011 11:10:34 AM

adelnet said:
ok I'm sorry , I have "Maximus" motherboard and I face same problem

You should start your own thread instead of hijacking this one.
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May 1, 2011 12:49:24 PM

adelnet said:
ok I'm sorry , I have "Maximus" motherboard and I face same problem
No, really, you have a different problem. SLI supports direct mode from your CPU, and your specific board has an NF200 bridge to expand SLI support to three cards.

So all the "approved" hardware is there. If you can't enable SLI, you have a completely "different" problem.
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May 1, 2011 3:37:37 PM

ok bro , I will make now post , thanks
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a c 224 Î Nvidia
a b Ĉ ASUS
May 1, 2011 3:59:23 PM

This topic has been closed by Mousemonkey
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