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SLI/Xfire mobo question

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February 14, 2008 2:28:52 PM

I have a fast noob question I hope someone can help me out on. I am looking at this board.
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

The manufacture page says Supports CrossFireX™ with Dual PCI-E 2.0 x16 graphics for extreme gaming performance.

But also says # 2 x PCI Express x16 slots supporting ATI CrossFire™ technology
(The PCI Express x16 slots conform to PCI Express 2.0 standard.)

Does that mean I can run SLI or xfire? I am asking b/c right now I am considering buying a 8800gt.

Thx for the help
a c 136 V Motherboard
February 14, 2008 2:35:29 PM

That motherboard is a X38 board :

http://www.tomshardware.co.uk/forum/245454-15-crossfire...

X38 supports CrossFire which means u can use ONLY 2 ATI cards and supports either 1 NVIDIA or ATI card,so if u have a 8800GT u can use it on ther motherboard but u CANT USE 2 of them
February 14, 2008 2:36:43 PM

Ah ok thx man. It should be ok with the 9800gx2 tho right?
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a c 136 V Motherboard
February 14, 2008 2:46:11 PM

No problem
Well no one knows the exact specs of 9800GX2 , but if the rumors are true then it will be something like 7950GX2 ( 2 cards attached to one) which can be used on a single slot and wont need 2 slots
February 14, 2008 2:47:37 PM

Thx again. I noticed you have the 500gb Seagate in your sig. How is that? I was planing on buying the WD one. You have any experience with the WD?
a c 136 V Motherboard
February 14, 2008 2:50:06 PM

Yeah i have had a 120GB WD before and it was great
and this 500GB seagate is solid too and i like it
February 14, 2008 2:56:24 PM

cool, going to stick with WD. Thx for all the help
a c 136 V Motherboard
February 14, 2008 3:01:26 PM

No problem mate :)  glad i could help u :) 
a b V Motherboard
February 14, 2008 3:02:47 PM

Convo, I recommend you get the 750GB WD (WD7500AAKS). It's faster than the 500GB version and actually a bit cheaper per GB.

The GA-X38-DS4 should work fine with 8800GT or with 9800GX2, but you lose the ability to add a second card because these are nVidia cards and don't support Crossfire. You could get the GA-X38-DS4 and an HD 3870X2, and add another HD 3870X2 later when/if needed.

Or, if you prefer nVidia video cards, get yourself an eVGA 780i motherboard, which will allow you to add a second nVidia card. Get an 8800GTS G92 512MB now or a 9800GTX (whenever it's out). Stay away from the 9800GX2, I don't think you will be able to combine two of these with good results. I may be wrong, but I remember the 7950GX2, combining two of those didn't work well.

What kind of PSU and case do you have in mind?
a c 136 V Motherboard
February 14, 2008 3:07:35 PM

Not to forget that SLI/CROSSFIRE doesnt always double the performance and also if u he play lower than 1920x1200 then SLI/CROSSFIRE would be useless and a P35 board will be the best deal
February 14, 2008 3:20:44 PM

Actually... you can use more than one Nvidia card... you just can't SLI them. So if you needed more monitors or something...

-mcg
a b V Motherboard
February 14, 2008 4:37:56 PM

Ah, absolutely true. If you want 3 monitors you will need two video cards (unless you get some fancy video card with more than two outputs). If you do that, the cards can be different (as in a $400 card and a $50 card, for example), Just make them both nVidia or both ATI to avoid mixing drivers.

BTW, for this scenario a P35 mobo would be fine. For example Asus P5K Deluxe or GA-P35-DS4 or aBit IP35Pro.
a b V Motherboard
February 14, 2008 6:46:01 PM

Maziar said:
Not to forget that SLI/CROSSFIRE doesnt always double the performance and also if u he play lower than 1920x1200 then SLI/CROSSFIRE would be useless and a P35 board will be the best deal


:pfff:  Still posting cobblers I see, I'm running 1680 x 1050 on 2 8800GT's and the SLI indicators go all the way to the top and bottom of the screen showing that SLI is not useless below 1920 x 1200.
a c 136 V Motherboard
February 14, 2008 7:22:09 PM

Mate :)  have u read my FAQ ? by useless i wont mean that it doesnt improve the performance in resolutions lower than 1920x1200 i mean MultiGPU shines in higher resolutions like 1920x1200+
http://www.tomshardware.co.uk/forum/245454-15-crossfire...
Is it really necessary to use SLI or CrossFire ?
Well , it really depends mostly on the resolutions and games you play , resolutions like 1920x1200 and higher benefit more from SLI or CrossFire than resolutions like 1600x1200 or lower (I dont mean SLI or CrossFire wont be good for resolutions like 1600x1200 or lower , i am just saying that SLI or CrossFire shines in higher resolutions.)

but yeah u are right, i shouldnt have written the word "Useless" :)  :D 
a b V Motherboard
February 14, 2008 7:33:15 PM

Maziar said:
Mate :)  have u read my FAQ ? by useless i wont mean that it doesnt improve the performance in resolutions lower than 1920x1200 i mean MultiGPU shines in higher resolutions like 1920x1200+
http://www.tomshardware.co.uk/forum/245454-15-crossfire...
Is it really necessary to use SLI or CrossFire ?
Well , it really depends mostly on the resolutions and games you play , resolutions like 1920x1200 and higher benefit more from SLI or CrossFire than resolutions like 1600x1200 or lower (I dont mean SLI or CrossFire wont be good for resolutions like 1600x1200 or lower , i am just saying that SLI or CrossFire shines in higher resolutions.)

but yeah u are right, i shouldnt have written the word "Useless" :)  :D 

If you really are 17 years old then I have been around for more than twice as long as you and have no need to read your faq. When you have used many cards over many years and have much more experience than me then you may have something to teach me but until then...
a c 136 V Motherboard
February 15, 2008 7:19:52 AM

Well i dont agree that becase your age is twice as me then u shouldnt read my FAQ

there are many users that 90% of them are older than me and they have read the FAQ and even if then knew everything they said its a good FAQ and told me to keep it up and many of them are helping me in that thread, and this encourages me to write more and keep that topic updated (users like EMP, NUKEMASTER,THE GREAT GRAPE APE,4745454b.......)

and i always thank them for helping me

you are older than me but this doesnt mean that u shouldnt read my FAQ,only because of your age, an by writing that FAQ, i dont mean to teach anything, i just want users understand SLI/CROSSFIRE better
Again u may have alot better experience with hardware, but this doesnt mean that u dont have to read the FAQ becuse your have more experience than me

all of those users i mentionend have alot better experince in hardware than me but they read the FAQ and even if they knew anything they helped me in it :) 

btw sorry i went off topic

February 15, 2008 12:49:48 PM

I found a combo deal through Evga. 10% off if you bought the 780i and 8800gt 512 together. I just went that route. It cost me 450 but I am happy with the deal
a c 136 V Motherboard
February 15, 2008 1:14:31 PM

Thats a solid deal, good luck with it :) 
a b V Motherboard
February 15, 2008 2:00:57 PM

convo said:
I found a combo deal through Evga. 10% off if you bought the 780i and 8800gt 512 together. I just went that route. It cost me 450 but I am happy with the deal


Not bad at all.

Make sure you get a good PSU, just in case you want to try SLI later. My favorite PSU for this sort of setup is the OCZ Silencer 750W ($140 at www.buy.com these days). The Corsair 620HX would also be able to handle two 8800GT cards, and it's modular too, but it leaves less room for adding hard disks and other upgrades.

A setup with two 8800GT cards absolutely needs a case with good cooling. Antec 900 would be good, and Cooler Master Stacker better. Then there's always the Silverstone TJ-09, designed specially for best cooling of SLI setups.

I suggest you try that one 8800GT card for a while and see how it feels. Depending on your monitor resolution, your preferred eye-candy level, and the games you play, you may never need a second card or you may need it soon. Keep in mind that SLI does wonders in some games and nothing at all in others, with most games somewhere in between.
a c 136 V Motherboard
February 15, 2008 2:07:28 PM

Add thermaltake cases too they have a very good cooling
February 15, 2008 2:32:02 PM

I been building the machine over a month so have some of the parts already. I have the Cooler Master Stacker case and a Pc Power and cooling 610watt PS. That should be cool right?
a c 136 V Motherboard
February 15, 2008 3:11:19 PM

Yeah that should do the trick
a b V Motherboard
February 15, 2008 3:38:29 PM

Nice!!
!