SLI / CrossFire FAQs - Page 11
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Last response: in Graphics & Displays
BF Texan
July 6, 2009 11:03:47 AM
As a nooB to Tom's I appreciate any info I can get and I found your post very informative...
One piece of information I found confusing is in your article...
This appears to me to mean that these NVIDIA cards are Crossfire compatible...
Do you really mean to say that the list is of NVIDIA SLI and AMD/ATI CrossFire compatible?
My question to you is this:
My mobo does NOT support SLI which I didn't realize until I bought a second card.
I don't play games as much as I want to use more monitors...
can I use the second card without bridging them without hurting my mobo or anything else for that matter.
And I have to assume that I would NOT want to use the SLI bridge.
One piece of information I found confusing is in your article...
Quote:
List of NVIDIA and AMD/ATI CrossFire compatible Graphic CardThis appears to me to mean that these NVIDIA cards are Crossfire compatible...
Do you really mean to say that the list is of NVIDIA SLI and AMD/ATI CrossFire compatible?
My question to you is this:
My mobo does NOT support SLI which I didn't realize until I bought a second card.
I don't play games as much as I want to use more monitors...
can I use the second card without bridging them without hurting my mobo or anything else for that matter.
And I have to assume that I would NOT want to use the SLI bridge.
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Reply to BF Texan
Related resources
- SLI / CrossFire FAQs - Forum
- CrossFire FAQs - Forum
- crossfire-faqs - Forum
- Sli/ Crossfire or single GPU ? - Tech Support
- GTX 970 SLI vs R9 290 CROSSFIRE - Tech Support
Anonymous
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July 17, 2009 11:36:38 PM
carlos alcantara
August 12, 2009 6:13:50 PM
From that link:
"(Note 4) If you are installing a PCI Express graphics card, be sure to install it in the PCIEX16_1 slot."
The first PCI-E slot is 16x and the second model which is for Hybird CrossFire is 4x.
But if u want to use normal crossfire u will get performance hit,because the second card will operate at 4x and that's not good for gaming, 16x4x mode doesn't perform well compared to dual 8x or dual 16x.
"(Note 4) If you are installing a PCI Express graphics card, be sure to install it in the PCIEX16_1 slot."
The first PCI-E slot is 16x and the second model which is for Hybird CrossFire is 4x.
But if u want to use normal crossfire u will get performance hit,because the second card will operate at 4x and that's not good for gaming, 16x4x mode doesn't perform well compared to dual 8x or dual 16x.
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Reply to Maziar
carlos alcantara
August 14, 2009 3:32:34 AM
I suspect that, thanx for answer, 'cause I've been plained to arm a system with this MOBO, first with no aditional video card, only with one for capture and edition of videos, but later maybe with one or two 4850, but if this doesn't apply to games, then I choose one MOBO 790GX, diferences in cost of this Motherboards in México is about $1400 pesos, almost $110 dollar. Thanx again Maziar.
Later I bother you with more questions.
Later I bother you with more questions.
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Reply to carlos alcantara
mathewbutterfield
August 21, 2009 5:57:25 AM
hey im just woundering if u can take a crossfire card and put it on another mother board that doesnt require crossfire ready like i have a gateway dx 4200 good computer the on board hd3200 isent so great i was just woundering if i can by a crossfire ready card and put it in there with out no problems e-mail me back at
thanks
thanks
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Reply to mathewbutterfield
mathewbutterfield
August 21, 2009 8:38:46 AM
Maziar said:
Yes as jaydee said,u can put a "CrossFire-ready" card in a non-CrossFire motherboard.thanks i have a gateway dx4200 i dont know what card i should get i plan on changing to crossfire but im gonna do a lil at a time i want to know is there any software i can bypass the bios to overclock my amd phnome i know i need to becareful i know i wouldnt mess anything up just have to take a chance ill just get a new one if something goes wrong thanks for the help
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Reply to mathewbutterfield
carlos alcantara
August 26, 2009 4:52:57 AM
Eh Ah! What's new boss? , is me again, actually I use a PSU Delta Electronics 700 watts, with 4 12v rails and 50A (not a 80+ certified in fact its efficiency is only 67% reported), my question is, this PSU is recomended for a HD4890 (near future) or I have to changed for a better PSU?, so I think maybe can upgrade my GPU to a 5xxx series, I hope this will come in mid september or october.
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Reply to carlos alcantara
carlos alcantara
August 27, 2009 3:43:20 AM
Yeah! I know it will support, by the power, but really my question is, if this is not 80+, no PFC, no voltage regulation and none surge protection, graphics cards and other devices are under some risk?.
Mine is reasonable doubt because with only one HD4830 i can't get any stable OC and same problem is with my procesor a X2 7750BE, my devices are well cooled and temperatures are GPU: 52-54 ºC under load; and CPU: never goes over 42 ºC, average is 37 ºC.
In the other hand even here in México some vendors says series 5xxx in some places are under test and they hope these cards come probably in next week ???.
Really I believe this is an oasis and I guess maybe come in october or september if good.
Mine is reasonable doubt because with only one HD4830 i can't get any stable OC and same problem is with my procesor a X2 7750BE, my devices are well cooled and temperatures are GPU: 52-54 ºC under load; and CPU: never goes over 42 ºC, average is 37 ºC.
In the other hand even here in México some vendors says series 5xxx in some places are under test and they hope these cards come probably in next week ???.
Really I believe this is an oasis and I guess maybe come in october or september if good.
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Reply to carlos alcantara
bujinyun
August 28, 2009 7:53:50 AM
im new to this forum, hope you guys san help me.
right now i have a radeon hd 4870 1gb, and im planning to buy another one to CF.
but, will my mobo bottleneck my GPU? coz im using gigabyte ep45-extreme mobo, and it have 1 pci-e x16 and 1 pci-e x8.
monitor res, 1680x1050. actually, i can afford a whole new core i7 rig, if i want to. but i don't think its worth it. im using C2D e8400@3.6. i always play using the highest possible setting, and just for information, im a hardcore gamer.
right now i have a radeon hd 4870 1gb, and im planning to buy another one to CF.
but, will my mobo bottleneck my GPU? coz im using gigabyte ep45-extreme mobo, and it have 1 pci-e x16 and 1 pci-e x8.
monitor res, 1680x1050. actually, i can afford a whole new core i7 rig, if i want to. but i don't think its worth it. im using C2D e8400@3.6. i always play using the highest possible setting, and just for information, im a hardcore gamer.
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Reply to bujinyun
bujinyun
August 30, 2009 10:54:49 AM
nashlofer
September 18, 2009 12:16:28 PM
Thanks for the information.
Interesting to hear about Hybrid SLIs or crossfires graphic card configurations. I have been using ATI/Radeon since then, not that I dislike NVIDIA but because you could get the same NVIDIA graphic card spec on ATI at a cheaper price, sometimes even better. Just need to make your homework first before buying.
Interesting to hear about Hybrid SLIs or crossfires graphic card configurations. I have been using ATI/Radeon since then, not that I dislike NVIDIA but because you could get the same NVIDIA graphic card spec on ATI at a cheaper price, sometimes even better. Just need to make your homework first before buying.
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Reply to nashlofer
Anonymous
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September 22, 2009 3:55:20 PM
hy guys i wanna build a new pc (for gaming) and i need help , i wanna buy a best processor and a better video card , about ram i think will be ddr2 4gb max mhz possible (if u think will be better buy ddr3 plz tell me) buget is 500 Euro, i whant this pc to handle games in the future 2/3years so...i was think about :
procesor: AMD Phenom X4 9850 / Intel Core 2 Duo E8400 / Intel Core 2 Quad Q9300 to Q9650
video card: Sapphire Radeon HD 4850 X2 2GB
rest it doesnt matter to me , just a v good power suply
plz help me with ur's idees if u know a better video card on proceesor plz tell me tnx for help i will w8 ur reply or plz contacte me on ady_jl@yahoo.com tnx again guys
procesor: AMD Phenom X4 9850 / Intel Core 2 Duo E8400 / Intel Core 2 Quad Q9300 to Q9650
video card: Sapphire Radeon HD 4850 X2 2GB
rest it doesnt matter to me , just a v good power suply
plz help me with ur's idees if u know a better video card on proceesor plz tell me tnx for help i will w8 ur reply or plz contacte me on ady_jl@yahoo.com tnx again guys -
Reply to Anonymous
You posted in the wrong section,please post in here:
http://www.tomshardware.co.uk/forum/forum-13.html
http://www.tomshardware.co.uk/forum/forum-13.html
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Reply to Maziar
icstm
September 23, 2009 1:59:28 PM
Fans and Power:
Hi guys,
(my first post here)
I have a quick question, which should have a quick answer.
Let's pretend I was about to buy the 4870 or two 4850s in CF:
Assuming that each card's power use and fan noise are similar:
- will the CF solution always sound twice a loud?
- use twice the power?
- in normal web browsing does one of the cards switch off (like a low power state found on multi-core processors)?
According to the GPU charts there are some cheap SLi/CF configurations out there, but I am wondering if they complicate things.
On another note, where is a good place to sell an old AGP card?
I have an BFG 7800GS OC which is way too powerful for my XP 2800+ (Barton) CPU unless I am work out a way to better o/c it
Hi guys,
(my first post here)
I have a quick question, which should have a quick answer.
Let's pretend I was about to buy the 4870 or two 4850s in CF:
Assuming that each card's power use and fan noise are similar:
- will the CF solution always sound twice a loud?
- use twice the power?
- in normal web browsing does one of the cards switch off (like a low power state found on multi-core processors)?
According to the GPU charts there are some cheap SLi/CF configurations out there, but I am wondering if they complicate things.
On another note, where is a good place to sell an old AGP card?
I have an BFG 7800GS OC which is way too powerful for my XP 2800+ (Barton) CPU unless I am work out a way to better o/c it
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Reply to icstm
icstm,
Check out the link below for info on video card power usage both at idle and load.
http://archive.atomicmpc.com.au/forums.asp?s=2&c=7&t=93...
Check out the link below for info on video card power usage both at idle and load.
http://archive.atomicmpc.com.au/forums.asp?s=2&c=7&t=93...
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Reply to nukemaster
moe2freaky
October 1, 2009 11:13:42 AM
moe2freaky
October 1, 2009 2:11:51 PM
blotkis
October 9, 2009 8:57:03 PM
Mazier:
Will the following setup work? -
3 24" monitors, 2 plugged into 1 card and the 3rd plugged into another that will be the primary (both 5850 graphics cards).
I'll keep Crossfire off so I can use all 3 screens, but if I want to game will it be possible to have both cards in Crossfire mode to game on my primary display (i.e. the monitor plugged into the primary card only). I think the 2 other monitors wont work w/ Crossfire enabled but that's totally fine.
Also, if this is possible can I just switch Crossfire off through CCC or does it require a reboot? Thanks a ton.
Will the following setup work? -
3 24" monitors, 2 plugged into 1 card and the 3rd plugged into another that will be the primary (both 5850 graphics cards).
I'll keep Crossfire off so I can use all 3 screens, but if I want to game will it be possible to have both cards in Crossfire mode to game on my primary display (i.e. the monitor plugged into the primary card only). I think the 2 other monitors wont work w/ Crossfire enabled but that's totally fine.
Also, if this is possible can I just switch Crossfire off through CCC or does it require a reboot? Thanks a ton.
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Reply to blotkis
http://www.guru3d.com/article/ati-eyfinity-editorial-re...
"For those that are wondering, would it be possible to use say two Radeon HD 5870 cards with each driving three monitors ? That's a no. CrossfireX will not support/allow this, so you'll need one primary cards from which all monitors lead."
About your last question,well you can disable CrossFire from CCC but i am not sure whether it will require a reboot or not
"For those that are wondering, would it be possible to use say two Radeon HD 5870 cards with each driving three monitors ? That's a no. CrossfireX will not support/allow this, so you'll need one primary cards from which all monitors lead."
About your last question,well you can disable CrossFire from CCC but i am not sure whether it will require a reboot or not
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Reply to Maziar
austinkarl
October 10, 2009 11:51:27 AM
brandonvi
October 11, 2009 9:00:18 PM
I know this was more then likly posted somewhere in the last 11 pages of this post but i really dont want to read all that if somone can answer it for me
can SLI or crossfire be done with cards of different generations meaning can you crossfire a 4870 and a 5870 or a GTX 260 and a GTX 360 or GTX 460
well i guess the GTX 300's are not out yet but somone should atleast know if like you can put a GTX 260 with a 9800GT and from that be able to draw a conclusion
can SLI or crossfire be done with cards of different generations meaning can you crossfire a 4870 and a 5870 or a GTX 260 and a GTX 360 or GTX 460
well i guess the GTX 300's are not out yet but somone should atleast know if like you can put a GTX 260 with a 9800GT and from that be able to draw a conclusion
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Reply to brandonvi
Anonymous
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October 17, 2009 3:25:20 PM
I liked the information, though I think I was generally aware of most of what I needed from what you provided already. I am looking for information on how your CPU can bottlenecks (technically) a GPU SLI configuration. How can you figure whether or not your CPU will factor into your planned SLI setup? I didn't see anything about that here. Thanks for redirecting me to a post or answering my question in advance!
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Reply to Anonymous
Well CPU bottleneck depends on which games you play and also the resolution that you play at,as an example most FPS shooter games are GPU-limited but there are some games which benefit from a great CPU too,so for example when you play a game (which benefits from a good CPU) with a good VGA card and a slow CPU then you won't get the performance you need
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Reply to Maziar
tommy6860
October 18, 2009 8:18:43 AM
Very informative, but one thing I would have elaborated on a bit more was the fact about having two cards in SLI/Crossfire modes, and how that setup doesn't mean doubling the memory. I admit, I've had a misunderstanding on how that worked, up until I read this here. But, doesn't having that two card setup improve how graphics perform, and isn't the memory from both cards still used across (or from the) two cards anyway?
Otherwise, it would (seem) to be a moot point and a complete waste of one of those cards to have that set-up.
Otherwise, it would (seem) to be a moot point and a complete waste of one of those cards to have that set-up.
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Reply to tommy6860
When you use 2 cards in either SLI or CrossFire,the memory of both cards are used but it doesn't double the memory,let me tell you with an example,when you use 2
ATI HD 4850 cards in CrossFire,both 512MB RAMs of both cards are used so it means you have 2 cards and they use the 512MB of memory so you won't have 1GB memory
ATI HD 4850 cards in CrossFire,both 512MB RAMs of both cards are used so it means you have 2 cards and they use the 512MB of memory so you won't have 1GB memory
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Reply to Maziar
tommy6860
October 18, 2009 11:49:29 PM
Maziar said:
When you use 2 cards in either SLI or CrossFire,the memory of both cards are used but it doesn't double the memory,let me tell you with an example,when you use 2ATI HD 4850 cards in CrossFire,both 512MB RAMs of both cards are used so it means you have 2 cards and they use the 512MB of memory so you won't have 1GB memory
Thanks for the reply, and I am not trying to sound daft, but your reply basically says the same thing to which I inquired initially. Doesn't both cards total 1g of memory. As I ask before, what is the point of having (as in your example) two cards of 512mgs for a total of 1g, if all of the memory from both cards isn't going to be used? It also makes moot even the x2s.
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Reply to tommy6860
Mereel
October 19, 2009 1:16:13 AM
Mereel
October 19, 2009 1:57:50 AM
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