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SLI / CrossFire FAQs - Page 15

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Last response: in Graphics & Displays
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a b Î Nvidia
a c 169 U Graphics card
June 20, 2010 9:09:29 PM

Hello and welcome to the forums :) 
When it says "CrossFire read",it should support it, but to make sure that it does, always check the manufacturers site.
You can run a pair of 5850's on a motherboard which supports CrossFire, just make sure you get a motherboard that support CrossFire at dual 8x or dual 16x speed, because 16x4x doesn't perform very well.
June 20, 2010 9:45:08 PM

Maziar said:
Hello and welcome to the forums :) 
When it says "CrossFire read",it should support it, but to make sure that it does, always check the manufacturers site.
You can run a pair of 5850's on a motherboard which supports CrossFire, just make sure you get a motherboard that support CrossFire at dual 8x or dual 16x speed, because 16x4x doesn't perform very well.


Hi Maziar

Thanks for the greetings! Great thread by the way.

I guess I wasn't clear, and I'll try to make it a straightforward question...

If my motherboard is NOT on the AMD "Crossfire Certified" list, and if I have two PCI Express 16 v2.0 slots free, can I still run two 5850's in a Crossfire configuration in those slots? If I can, are there any implications to the 5850's performance versus a typical "Crossfire Certified" board?

P.S. the board is an Intel S5520SCR Dual LGA 1366

Any light anyone could shed would be much appreciated.

Cheers from the Virgin Islands!

= = = = =

Update: After much digging,...

"The S5520SC motherboard has six DDR 3 memory slots for each of the two sockets...The twin graphics slots support CrossFire but not SLI"

...just wrapping up my own question for someone else who might want to know ;) 


http://www.reghardware.com/2009/04/01/review_cpu_intel_...
a b Î Nvidia
a c 169 U Graphics card
June 21, 2010 7:13:04 AM

Well it seems you already have found the answer yourself,that it supports CrossFire.
And sorry for my misunderstanding at first
Related resources
Can't find your answer ? Ask !
June 22, 2010 4:48:26 AM

They have to be the same even if I do not want to run them in crossfire? I just want to be able to add a 3rd monitor (projector actually). If so that sucks, because I already ordered another inexpensive HDMI vid card.
June 22, 2010 5:01:35 AM

They have to be the same even if I do not want to run them in crossfire? I just want to be able to add a 3rd monitor (projector actually). If so that sucks, because I already ordered another inexpensive HDMI vid card.

Monoprice sells a USB 2.0 Display Adapter DVI/VGA/HDMI (1600x1200) that allows an aditional monitor to be added, but I thought I would be better off using another video card. I really do not want to have to buy another x1900xt card, or have to buy 2 new vid cards. (I know Waaaaaaa!!!!)

http://www.monoprice.com/products/product.asp?c_id=101&...
a b Î Nvidia
a c 169 U Graphics card
June 22, 2010 7:31:24 AM

Unfortunately like i said the cards have to be identical in order to use multiple monitors
June 23, 2010 8:15:09 AM

Hi again everybody!
I have troubles, recently installed windows 7 and when I charged the drivers for the HD 4800 series it doesn't install correctly, used the drivers for windows vista and the driver for the site of amd/ati for win7 and this does not install completely and i have not acces to the CCC so I can't activate crossfire and yes I uninstall windows vista driver before install win7 driver. So then I install the afterburner of MSI and doesn't apears the choice for crossfire or I do not know how activate

Another trouble: my cards even if crossfire is not activated suffer by heat ( over 78ºC ) when in win xp is not uper than 64 ºC.

So I'm very gratefully for any light.

Ah! I forget: HD4830 CF in win XP at highest settings in my 22 inch (1680x1050) monitor overperformance by much a single 5770 in every game i played(dirt2, crysis, batman arkham asylum, fear2, grid, NFS shift, etc) . So that's the reason i install win7.
a b Î Nvidia
a c 169 U Graphics card
June 23, 2010 8:23:18 AM

Hi
Well what error does it exactly give you during the driver installation
June 23, 2010 8:30:40 AM

The installation is completed but with erros in the installation of CCC
a b Î Nvidia
a c 169 U Graphics card
June 23, 2010 8:33:30 AM

Did the drivers install in Windows XP ? if so then are you sure that you are using the right drivers for Windows 7 ?
June 23, 2010 8:36:21 AM

Maziar said:
Did the drivers install in Windows XP ? if so then are you sure that you are using the right drivers for Windows 7 ?


Is the drivers of the amd/ati site and the legend is for the win7 so
June 23, 2010 8:45:48 AM

I start download again, i go to sleep and tomorrow will write, so, Good night and hapy dreams!
a b Î Nvidia
a c 169 U Graphics card
June 23, 2010 10:40:54 AM

Let us know how it goes.
July 1, 2010 4:08:19 AM

This thread is nearly 3 years old, an awesome feat maziar, props =)
a b Î Nvidia
a c 169 U Graphics card
July 1, 2010 6:06:46 AM

Thank you :) 
a b Î Nvidia
a c 169 U Graphics card
July 2, 2010 6:52:44 AM

Nothing much, just have to keep it updated :) 
July 10, 2010 3:12:44 PM

Thanks for the great infromation! With a motherboard enabling quad crossfire or space for 3 video cards, could a user run two sets of differing video cards (like 2 4850's with 2 5850's or 2 4850's and 1 5850)? Thanks to anyone who may know the answer!
a b Î Nvidia
a c 169 U Graphics card
July 10, 2010 3:21:40 PM

No,the cards have to be the same in order to run in CrossFire mode(like 3 HD 5850s)
July 28, 2010 5:16:34 PM

really informative..... good job dude....
a b Î Nvidia
a c 169 U Graphics card
August 3, 2010 8:31:57 AM

to kim
thanks,glad you liked it
to dogman
No one knows for now,we have to wait for it to come out,then we will know about its GPU features.
August 7, 2010 3:36:29 PM

SLI & CrossFire technology r useful in boosting your graphics.
Both does almost similar type of job.

SLI technology just make use of both the IGP & Discrete Graphics card simultaneously and boosts the graphics by both of them equally.

Whereas CrossFire technology make the default use of the Graphics Card and for extra boost uses the IGP.

I prefer CrossFire technology as u will combine your IGP with your graphics hard.
And you will also has the advancement of ATI Catalyst 10.6 which will increase your performance a lot.
a b Î Nvidia
a c 169 U Graphics card
August 7, 2010 4:54:26 PM

But neither Hybrid Crossfire nor Hybrid SLI boost performance significantly.
a b Î Nvidia
a c 169 U Graphics card
August 8, 2010 7:11:59 AM

Like Lucid ? Well the idea is good but it still doesn't perform as well as SLI or Crossfire, because its a new technology and the driver support isn't very good yet.
August 16, 2010 5:55:09 AM

Excellent...
August 17, 2010 6:06:02 AM

both!
August 25, 2010 6:28:07 PM

Thank you very much for this guide. It has clarified a few questions I've had on sli.

Very well put together.
a b Î Nvidia
a c 169 U Graphics card
August 25, 2010 9:03:47 PM

I'm glad you found it useful.
August 26, 2010 10:38:00 AM

Yeah ... good work.

I learned a thing or two too !

a b Î Nvidia
a c 169 U Graphics card
August 26, 2010 4:53:35 PM

Thanks Reyond :) ,I'm glad you liked it.
Anonymous
a b U Graphics card
August 28, 2010 6:06:50 PM

Hi,

i planning to buy ati hd 4870 with core 2 quad 9400/9550/ i3/i5, ram 4gb and i want to know which motherboard is best suitable for this config.
August 28, 2010 7:57:38 PM

Hi!

I have a Asus M2N-E SLI moteherboard with AMD Athlon 64 5600 processor and 4 GB of 800Mhz DL DDR3. I am considering buying a new graphic card so that I can play newest games (the new Gothic and so).

For what I read in you forum it s better to have two mid-range gpu than one high-range gpu. But I was heard by our local computer store, that when you are using dual-chanel ram, it is actualy better to have one really good gpu. If you are using triple-chanel ram, than it is better to have two mid-range gpu.

What do you guys think about that?

Also, which gpu (or two) would you suggested for my PC for abour 300$?


Regards, bk
a b Î Nvidia
a c 169 U Graphics card
August 28, 2010 8:24:45 PM

to kiran098730
Please ask your question in the motherboard's section, not in this thread.
to bkreutz
No that's incorrect,dual channel and triple channel aren't the factors to choose a VGA.
You can use 1 or 2 VGAs with both dual/triple channel RAMs without any problems.
As for a suggestion,well HD 5850 would be a great choice in your price range.
August 28, 2010 8:50:03 PM

Hi Maziar! Thanks for quick answer.

About your suggestion - don't you think that I should use Nvidia graphic card, as my motherboard is based on Nvidia nForce chipset?

a b Î Nvidia
a c 169 U Graphics card
August 29, 2010 9:22:03 AM

There isn't any problem running a single Nvidia card on an ATI chipset or vice-versa.
a b Î Nvidia
a c 169 U Graphics card
August 29, 2010 6:07:13 PM

Oh sorry, didn't see your reply first.
August 31, 2010 12:13:21 PM

I am thinking of buying the card you have reviewed yesterday.
Asus ENGTX460 DirectCU TOP/2DI/1GD5

For now I would buy only one, but (beacuse it is new) this card would still be selling in a 6 months time, so I can get another one then and use them with SLI connection.

Do you think that this is still beacause I don't have up-to-date motherboard? Will this card even get me work for me as well as it should?


Thnx, bk
a b Î Nvidia
a c 169 U Graphics card
August 31, 2010 2:07:29 PM

What's your motherboard and what resolution do you play at ?
August 31, 2010 3:22:30 PM

Maziar said:
What's your motherboard and what resolution do you play at ?


I have a Asus M2N-E SLI motherboard. As far as resolution is consirned, I am also buying a new monitor with full hd resolution which connects to hdmi port. So I guest 1920 × 1080 would be great.

a b Î Nvidia
a c 169 U Graphics card
August 31, 2010 6:00:06 PM

A GTX 460 is a good choice, and adding another one will give you a great boost in performance.
September 5, 2010 9:21:25 AM

Hi! I didn't understand very well if nVidia GeForce 9500GT (Gigabyte), 1024MB, 128Bit and nVidia GeForce 8600GT (XFX), 256MB, 128Bit will work together in SLI can someone help me?

My old nVidia GeForce 8600GT has two condensators exploded but still works :D , now i bought nVidia GeForce 9500GT, the main idea is that the old video card had a bigger score in Windows 7, 6.6 on both Graphics and Gaming Graphics. The new card nVidia GeForce 9500GT scores only 4.9 in Graphic and 6.3 in Gaming Graphic.
I want to change the condensators and make them work in SLI mode, is it worth?

Many thanks, waiting for your answer!

My English is not so good sorry for eventual mistakes!
a b Î Nvidia
a c 169 U Graphics card
September 5, 2010 11:54:23 AM

Did you even read the first page ?
the cards have to be the same in order to work in SLI mode, so you can't SLI a 8600GT with a 9500GT.
September 5, 2010 5:45:51 PM

If you do, the perfomance on the lower end card will be your GPU status.
a b Î Nvidia
a c 169 U Graphics card
September 5, 2010 8:35:17 PM

If anyone needs my e-mail,its located in my profile,please don't ask for it in this topic.
a b Î Nvidia
a c 169 U Graphics card
September 7, 2010 6:26:44 PM

Edited again.
Now the questions are bold so they are easier to find, and i edited the info about using 2 or more cards with different clock speeds.
September 9, 2010 2:41:21 PM

is it fine to put a card on top of another wont that affect the vents?
a b Î Nvidia
a c 169 U Graphics card
September 9, 2010 4:57:59 PM

As long as you have a good cooling solution in your case,then it will be fine
September 10, 2010 4:00:16 AM

Hey guys,

Quick questions about setting up 2 5850s in crossfire. Each of the two cards have 2 connections for power.... Together they have 4- 6 pin connectors.

My Power supply is a Cooler Master silent power pro 700 (RS-700-AMBA-D3) and it currently has 2 native 6 pin power connectors. Although this is fine to run one card and can even run 2, how do I configure it to run 2 cards if both cards need EVERYTHING CONNECTED? I have the adapters but each adapter needs 2- 4 pin connectors from the PSU meaning that altogether they need 4- 4 pin connectors which I simply do not have.

I've done countless and countless searches and can't find one damm tutorial on how to properly setup 2 video cards in crossfire that have need 2- 6 pin connections EACH????? i mean, how can this be???? there's tons of information and tutorials and videos on 5850's in crossfire mode but not one tutorial, video or forum post mentions ANYTHING about the connections that the power supplies need to feed these monsters. Can someone please help me. I am getting really frustrated.
September 10, 2010 4:45:34 AM

Tutorials? Really?

So, basically, you need to find out if yiou need to power both cards and access the x-bridge to link both cards?
September 10, 2010 4:54:12 AM

No man,

I need to find out exactly how everyone else does it. I mean all the threads I've seen and all the sites I've looked at trying to find an answer to this mystery says nothing about this dillema so it leaves me thinking that it's not that big a deal and everyone who is crossfiring 5850s are doing it fairly easily without a PSU that has 4- 6 pin PCI-E connector cables.....

I know I'm sounding dumb here but I have really made an effort to find this answer on my own but it seems that no one else is having this issue but me so what am I missing????? I'm totally stumped.


EDIT!!! i RE READ MY POST AND I JUST REALIZED THAT IT'S NOT ALL THAT CLEAR..... iT HAS NOTHING TO DO WITH THE CROSSFIRE BRIDGE AT THE TOP... i KNOW i HAVE TO CONNECT THEM THERE.... IT'S ALL ABOUT THE 2 POWER CONNECTION POINTS AT THE BACK. HOW IS EVERYONE ELSE DOING IT AND WHAT PSUs are you using to do it with???? how are you connecting the PSU to the cards and what adapters/splitters/fancy cables are you using?
September 10, 2010 4:56:28 AM

I take it you have 2 cards that are 4 AND 6 pins connecting from the PSU. Did you try looking in the box you got the cards in? They came with connectors that will allow your native PSU to connect and power your Dal GPU system.
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