SLI / CrossFire FAQs - Page 13
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Last response: in Graphics & Displays
cris_35
January 1, 2010 10:23:22 AM
cris_35
January 2, 2010 11:14:30 AM
Related resources
- SLI / CrossFire FAQs - Forum
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- Sli/ Crossfire or single GPU ? - Tech Support
- GTX 970 SLI vs R9 290 CROSSFIRE - Tech Support
dbmiller8
January 8, 2010 10:34:10 AM
I posted this question as a separate thread but it may belong in this thread more. Please feel free to tune me into how much of an idiot I am if my problem is something obvious.
I have not put together a computer almost since they were like an abacus but I am trying to get my son started. He wanted a screaming gaming computer. We have it all assembled and it is running but the SLI is not working. The NVIDIA control panel is supposed to have an option in the 3D menu to enable it but the option just isn't there. The computer has 2 Gigabyte GV-N250OC-1's. The SLI bridge connector is connected. The system sees both cards. The monitor is plugged into the card that is closest to the CPU. If we plug it into the other card, the display gets no signal. Is this normal? The computer has an ASUS Sabertooth 55i mobo, an Intel I7-860 CPU, a 1000 watt power supply and 4 gig of memory. We are using an old copy of XP that we just updated with SP3. I am not sure if I am missing something in the mobo BIOS or where else I have gone wrong. Any help would be greatly appreciated. Please let me know if more info is needed.
Thanks,
Dave
Update:I tried swapping video cards. Both are working. I have read that I may need to install one, load the drivers then install the second and load the drivers. I have looked to see if there is a switch on the mobo but there is not one. I also do not see anything in the BIOS to change how it sees the video cards. I have not updated the BIOS or the video card drivers. I guess that would be next...
I have not put together a computer almost since they were like an abacus but I am trying to get my son started. He wanted a screaming gaming computer. We have it all assembled and it is running but the SLI is not working. The NVIDIA control panel is supposed to have an option in the 3D menu to enable it but the option just isn't there. The computer has 2 Gigabyte GV-N250OC-1's. The SLI bridge connector is connected. The system sees both cards. The monitor is plugged into the card that is closest to the CPU. If we plug it into the other card, the display gets no signal. Is this normal? The computer has an ASUS Sabertooth 55i mobo, an Intel I7-860 CPU, a 1000 watt power supply and 4 gig of memory. We are using an old copy of XP that we just updated with SP3. I am not sure if I am missing something in the mobo BIOS or where else I have gone wrong. Any help would be greatly appreciated. Please let me know if more info is needed.
Thanks,
Dave
Update:I tried swapping video cards. Both are working. I have read that I may need to install one, load the drivers then install the second and load the drivers. I have looked to see if there is a switch on the mobo but there is not one. I also do not see anything in the BIOS to change how it sees the video cards. I have not updated the BIOS or the video card drivers. I guess that would be next...
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Reply to dbmiller8
dbmiller8
January 9, 2010 9:55:53 AM
Thanks Maziar. The problem is solved. I am blaming Bill Gates. I told my son he should get all the updates from Microsoft so that XP is up to date and secure. In my job, I troubleshoot microlithography equipment when it breaks and my question to the techs is always, what happened right before the failure. Well, in hind site, after installing SP3, the pig would not boot. Then we were unable to install any updated drivers and have them take because we always would have to start with last good known config. After we un-installed the update, and tried many other things, the computer booted and we were able to install the updated drivers. BTW-I had him remove one of the video cards too. So I am not sure if that is needed too but long winded post short, the SLI is working and the boy is happily tweaking this and that. Thanks for your help!
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Reply to dbmiller8
danjf
January 10, 2010 12:59:44 PM
themarshall
January 25, 2010 8:39:03 PM
speaking of helpful, I'm hoping someone can answer this for me.
I have (2) Radeon HD 5970's that I've put into my XPS 730, (replaced 2 GTX 295's) and am not sure they are really working as intended as a 4-GPU system. The quad-SLI was pretty straightforward actually but I'm fairly certain this is only using 2 of the GPU's (1 card) rather than all 4. Power isn't a problem and I connected the cable between the two as well. I see all 4 cards are active and working fine but there is no "CrossFire" options in the menu dropdown. I read that this was because you could not disable CrossFire since the card is DualGPU (which makes sense) but how do I know if I'm using all 4?
Any pointers would be welcome.
Thanks
I have (2) Radeon HD 5970's that I've put into my XPS 730, (replaced 2 GTX 295's) and am not sure they are really working as intended as a 4-GPU system. The quad-SLI was pretty straightforward actually but I'm fairly certain this is only using 2 of the GPU's (1 card) rather than all 4. Power isn't a problem and I connected the cable between the two as well. I see all 4 cards are active and working fine but there is no "CrossFire" options in the menu dropdown. I read that this was because you could not disable CrossFire since the card is DualGPU (which makes sense) but how do I know if I'm using all 4?
Any pointers would be welcome.
Thanks
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Reply to themarshall
Glazierman
February 3, 2010 8:18:10 PM
ok, can you crossfire two xfx hd 5970 Black Edition 2gb 512 cards ??? With an asus Rampage II Extreme??? Here's why I have bought already the mobo an a ultra x4 1600 ps, 12g ripjaws memory ddr3, Intel 950 cpu, OCZ 60 gb solid state hd, two caviar black 1tb hd's, 64 bit windows 7 extreme, and a zalman cnps10x cpu cooler and putting it in a thermaltake vg4000sna case. And I just want to make sure these cards will work I havent been able to get an answer ?? Thanks, Just call me broke!! !oops. I forgot the cd/dvd burner and lg blue ray burner too.
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Reply to Glazierman
View1
February 13, 2010 1:28:10 AM
Glazierman said:
ok, can you crossfire two xfx hd 5970 Black Edition 2gb 512 cards ??? With an asus Rampage II Extreme??? Here's why I have bought already the mobo an a ultra x4 1600 ps, 12g ripjaws memory ddr3, Intel 950 cpu, OCZ 60 gb solid state hd, two caviar black 1tb hd's, 64 bit windows 7 extreme, and a zalman cnps10x cpu cooler and putting it in a thermaltake vg4000sna case. And I just want to make sure these cards will work I havent been able to get an answer ?? Thanks, Just call me broke!! !oops. I forgot the cd/dvd burner and lg blue ray burner too.Hi
Yes that should work. I have/had two xfx597A-BE cards mounted in this new system. My cards have gone back RMA as like others with other brands I was having issues with grey screen / crashes requiring hard boot. There are posts on this site about the issues you just need to look for them.
You could go to the AMD forum site there is a section just for the xrossfire set up.
OS: Win7-64bit
MOBO: Asus P6X58D Premium
CPU: Intel i7-965 extreme
RAM: 12GB OCZ 1600
PSU: Silverstone 1500W
Case CoolerMaster HAF932
2 x DVD
3 x HDD
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Reply to View1
JohnieReb
February 13, 2010 2:59:54 AM
Hey all, I have this monitor.
http://www.viewsonic.com.pe/suppor [...] /a91fplus/
Im looking at buying either a ATI 5770, 2 ATI 5770's Crossfired, or a single ATI 5850.
I have a I7 920 CPU with the ASRocks X58 extreme Mobo.
Which Vid Card should I get and why? I can get 2 5770's for $20 more than the 5850 and they out perform the 5850 quite well.
Would anything more than one 5770 be overkill? I built my system to last at least 3 years and who's to say I wont get a new monitor within that time?
Thanks,
Johnie
http://www.viewsonic.com.pe/suppor [...] /a91fplus/
Im looking at buying either a ATI 5770, 2 ATI 5770's Crossfired, or a single ATI 5850.
I have a I7 920 CPU with the ASRocks X58 extreme Mobo.
Which Vid Card should I get and why? I can get 2 5770's for $20 more than the 5850 and they out perform the 5850 quite well.
Would anything more than one 5770 be overkill? I built my system to last at least 3 years and who's to say I wont get a new monitor within that time?
Thanks,
Johnie
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Reply to JohnieReb
clement4413
February 17, 2010 7:34:06 PM
Depends if you are looking for an upgrade now, 5770 is a very good value. I run them cross-fired for high end purposes and they work great. However if you think you will have extra money in a few months, I figure why not bump up and get a 5850. I only upgrade once every 1.5 years so 2x 5770 will serve me well as the 5XXX series is really only just a bridge series till the next REAL gpu release.
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Reply to nrnx
The i7 920 will outperform even a QX9770.
You are right in that that rig is better at gaming, however the CPU isn't as powerful.
A 5870 isn't that far behind, as 3 & 4 GPU scaling is horrible, so quad-CF is probably like 3 4870's, a 5870 = 4870X2. So OCing the 5870 and it won't be more than 5-20% behind.
You are right in that that rig is better at gaming, however the CPU isn't as powerful.
A 5870 isn't that far behind, as 3 & 4 GPU scaling is horrible, so quad-CF is probably like 3 4870's, a 5870 = 4870X2. So OCing the 5870 and it won't be more than 5-20% behind.
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Reply to sabot00
murphycop
March 19, 2010 6:28:05 AM
gauravtushir
March 23, 2010 4:16:09 PM
motamedn
March 23, 2010 6:53:44 PM
so back to JohnnieReb's question: With a new build of an i7 920 system intended to not be upgraded within 3-4 yrs (aside from graphics card/HD), is it better today to purchase a 2x5770 or 1x5850?
To add my own twist, I will be playing on a 1680x1050 monitor and possibly a 52" plasma from time to time (idk if that makes a difference or not)..and the games will likely vary but include starcraft 2 + diablo 3 and the occasional FPS..
Thanks in advance!
To add my own twist, I will be playing on a 1680x1050 monitor and possibly a 52" plasma from time to time (idk if that makes a difference or not)..and the games will likely vary but include starcraft 2 + diablo 3 and the occasional FPS..
Thanks in advance!
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Reply to motamedn
gauravtushir
March 24, 2010 1:32:53 AM
murphycop
March 24, 2010 5:15:54 AM
Sorry! I didn't answer before do my task in this video http://www.youtube.com/watch?v=lTKjjXo_KVc , octv shows how did work this moterboard with a 260 GTX and a HD 4890 together, in fact I think maybe it shows a little decrement in performance compared with a SLI or CFX, but, it represent an advantage for one guy with a oldest video card, in the specifications MSI declares that mobo works wit the 9xxx and gtx 200 series in the nvidia part and with the 4xxx series for ati, but there are another video http://www.youtube.com/watch?v=E3DeOsrBUa8&feature=rela... , that shows a chinese guy playing with a HD5870 & GTX285, for the moment I do not know more than this and I like someone can explain me how can it possible?, how does work sli and cfx physically?, and how did the hydra 200 make work ati-nvidia?
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Reply to murphycop
themarshall said:
speaking of helpful, I'm hoping someone can answer this for me.I have (2) Radeon HD 5970's that I've put into my XPS 730, (replaced 2 GTX 295's) and am not sure they are really working as intended as a 4-GPU system. The quad-SLI was pretty straightforward actually but I'm fairly certain this is only using 2 of the GPU's (1 card) rather than all 4. Power isn't a problem and I connected the cable between the two as well. I see all 4 cards are active and working fine but there is no "CrossFire" options in the menu dropdown. I read that this was because you could not disable CrossFire since the card is DualGPU (which makes sense) but how do I know if I'm using all 4?
Any pointers would be welcome.
Thanks
Download GPU-Z and run 4 copies of it (each for one core) and then run a game,and check their usages
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Reply to Maziar
JohnieReb said:
Hey all, I have this monitor.http://www.viewsonic.com.pe/suppor [...] /a91fplus/
Im looking at buying either a ATI 5770, 2 ATI 5770's Crossfired, or a single ATI 5850.
I have a I7 920 CPU with the ASRocks X58 extreme Mobo.
Which Vid Card should I get and why? I can get 2 5770's for $20 more than the 5850 and they out perform the 5850 quite well.
Would anything more than one 5770 be overkill? I built my system to last at least 3 years and who's to say I wont get a new monitor within that time?
Thanks,
Johnie
The lnk you posted doesn't work but 1 HD 5850 would be the best price/performance option between them
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Reply to Maziar
murphycop said:
So, anyone knows 'bout the new motherboards with hydra technology (like MSI Big Bang Fuzion)?, suposed to be able for the sli-crossfire, I mean nvidia-ati cards together.Some sites (including tom's)wrote a review about Hydra.
It looks promising but its currently new and driver support isn't very good but i think in future it will work better.
And yes the general purpose is using an ATI card with a Nvidia one
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Reply to Maziar
motamedn
March 26, 2010 4:54:55 PM
bonbon99
April 8, 2010 4:33:10 AM
If i have a motherboard with 3 way SLI but i decide to purchase one new ATI card, will the card work as it should on the nvidia based sli motherboard? im not trying to do SLI or crossfire with that one card or anything. i just feel like trying out a ati card. i dont know if an ATI card will be compatible with my motherboard.
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Reply to bonbon99
Thunder_40
April 10, 2010 6:49:12 AM
bonbon99 said:
If i have a motherboard with 3 way SLI but i decide to purchase one new ATI card, will the card work as it should on the nvidia based sli motherboard? im not trying to do SLI or crossfire with that one card or anything. i just feel like trying out a ati card. i dont know if an ATI card will be compatible with my motherboard.Yes you can use a single ATI card on a Nvidia SLI chipset and vice versa.
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Reply to Maziar
triplebug
April 11, 2010 10:55:39 AM
Very nice info, thanks!
I have a problem as I planning to buy a new CPU, hope you can help me.
Here's my specs:
Motherboard - Asus P7P55D-E PRO
Processor - Quad Core i5-750
Graphic - 2 x ATI Radeon HD 4850 (Crossfire)
Asus P7P55D-E PRO and Quad Core i5-750 only support "2 x PCIe 2.0 x16 (single at x16 or dual at x8 / x8 mode)"
Will there be bottleneck as both 4850 cards share x8 bandwidth only?
I have a problem as I planning to buy a new CPU, hope you can help me.
Here's my specs:
Motherboard - Asus P7P55D-E PRO
Processor - Quad Core i5-750
Graphic - 2 x ATI Radeon HD 4850 (Crossfire)
Asus P7P55D-E PRO and Quad Core i5-750 only support "2 x PCIe 2.0 x16 (single at x16 or dual at x8 / x8 mode)"
Will there be bottleneck as both 4850 cards share x8 bandwidth only?
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Reply to triplebug
nitinbharadwaj
April 19, 2010 9:59:46 AM
hello i have a gigabite GA-EP45T-DS3R (rev. 1.0) mother board with CrossFireX and i am running a nvdia geforce 9600 gt DDR3 on it... and this works fine...
now my question is can i pair it with another graphic card i have i.e Nvidia Quadro FX 580 on this board??? is it possible??
mother board is CrossFireX certified and the first graphic card (9600 GT) is SLI certified...
now my question is can i pair it with another graphic card i have i.e Nvidia Quadro FX 580 on this board??? is it possible??
mother board is CrossFireX certified and the first graphic card (9600 GT) is SLI certified...
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Reply to nitinbharadwaj
nitinbharadwaj
April 20, 2010 10:32:29 AM
nitinbharadwaj said:
thank you very much for our replies....so that means even if i get a new fx 580 after selling 9600gt and try to pair two fx 580 on my motherboard it wont pair as it is a crossfirex suport board not a sli board ??
Dead on. They will not pair(SLi) and will instead run as 2 separate cards.
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Reply to nukemaster
leila833
April 26, 2010 10:20:40 AM
leonmagnus90
May 1, 2010 7:04:43 PM
Is it wise for me to run dual GTX 260 SLI Configuration on a 1440X900 resolution?
I am thinking of picking up another GTX 260 to boost up my games... Any suggestions anyone?
The specs of my rig are as follows:
CPU: Core i5 750 @ 2.66Ghz
Ram: 4Gb Kingston 1066
Graphic Card: MSI GTX 260
PSU: Corsair TX 650W
Mobo: MSI P55 GD-65
I am thinking of picking up another GTX 260 to boost up my games... Any suggestions anyone?
The specs of my rig are as follows:
CPU: Core i5 750 @ 2.66Ghz
Ram: 4Gb Kingston 1066
Graphic Card: MSI GTX 260
PSU: Corsair TX 650W
Mobo: MSI P55 GD-65
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Reply to leonmagnus90
leonmagnus90
May 2, 2010 3:49:31 AM
Great post! It answered some of my questions. I especially like the graph of compatible cards - I didn't realise the 5870+5970 would be a decent combo. I'm currently running a 5850, and thinking about CF a second one which should perform great at 1920x1080 in any game max settings (hopefully including Crysis 2!). So, does CF/SLI improve min frames even if it doesn't improve max? It would be great to have a silky smooth experience even at 30fps.
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Reply to wolfram23
wolfram23 said:
Great post! It answered some of my questions. I especially like the graph of compatible cards - I didn't realise the 5870+5970 would be a decent combo. I'm currently running a 5850, and thinking about CF a second one which should perform great at 1920x1080 in any game max settings (hopefully including Crysis 2!). So, does CF/SLI improve min frames even if it doesn't improve max? It would be great to have a silky smooth experience even at 30fps.Well Crysis 2 isn't out ye,so no one knows how it will perform with MultiGPU systems but adding another 5850 will help you in current games.
And MultiGPU improves both Min and Max frames in games.
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Reply to Maziar
Anonymous
a
b
U
Graphics card
May 13, 2010 3:31:18 PM
I have an NVIDIA 9800GT in my crossfire based motherboard (BAH!) and I wish to use 4 displays (3monitors 1tv). What do you suggest:
I may not want to use the crossfire technology at all, just the fact that I can put 2 VGA cards in my systems (without crossfire). I want separate extended windows desktops on all displays, no cloning.
1. Keep my current NVIDIA card and buy another (for driver's sake: NVIDIA but not necessary 9800GT) card so i'll have 4 outputs, is that good?
2. Sell my current card and buy 2 ATI cards like 2 HD4850, this is crossfire friendly and I will be able to use 4 indepentent displays? Even during gaming?
Obviously the second option is better but would the nr1. work? And did I understand the situation of the nr 2.?
Thanks!
I may not want to use the crossfire technology at all, just the fact that I can put 2 VGA cards in my systems (without crossfire). I want separate extended windows desktops on all displays, no cloning.
1. Keep my current NVIDIA card and buy another (for driver's sake: NVIDIA but not necessary 9800GT) card so i'll have 4 outputs, is that good?
2. Sell my current card and buy 2 ATI cards like 2 HD4850, this is crossfire friendly and I will be able to use 4 indepentent displays? Even during gaming?
Obviously the second option is better but would the nr1. work? And did I understand the situation of the nr 2.?
Thanks!
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Reply to Anonymous
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