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Crossfire with PCI x1 to x16 adapter-- possible? - Page 2

post #11 of 22
Thread Starter 
Quote:
Originally Posted by Roweyi7;12383630 
you dont actually need a bridge its just there to help. but still, i see what you mean i can see a high profile graphics card hanging off that adapter somethings gonna snap. headscratch.gif

True. How would it fit in my case, then?
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post #12 of 22
Thread Starter 
Quote:
Originally Posted by AlaskaFox View Post
why do you need so many non express pci slots
The F*@# if I know. I buy combinations of items on NewEgg and I think I got $25 off with that mobo + processor ( I think ). My whole rig was $583 after $75 off in combos and dealios in general.
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post #13 of 22
Quote:
Originally Posted by OptimusCaik View Post
The F*@# if I know. I buy combinations of items on NewEgg and I think I got $25 off with that mobo + processor ( I think ). My whole rig was $583 after $75 off in combos and dealios in general.
ah i see. it would drive me nuts having a full size atx mobo i cant xfire with XD
post #14 of 22
Thread Starter 
I can get a full refund for my motherboard from newegg. (yay.)
Now, step 2: My psu is a 650w, probably 520-540w continuous. Do I need a 750w? What's a good, reliable and most of all sized for mid-tower PSU? Something not expensive. Plox.
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post #15 of 22
I assume you'll definitely want modular. By "not expensive" what exactly do you mean? You'll need to spend a little over $100 for a decent 750W modular PSU.

Corsair 750W
http://www.newegg.com/Product/Produc...82E16817139010

Corsair 650W
http://www.newegg.com/Product/Produc...82E16817139012

Cooler Master 600W
http://www.newegg.com/Product/Produc...82E16817171036

XFX is also pretty good quality, 750W on sale for $100 after rebate. I hate the green fan though, it's an eye sore in a blue/red setup.
http://www.newegg.com/Product/Produc...82E16817207003
Edited by Stealth Pyros - 2/14/11 at 1:39pm
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post #16 of 22
Thread Starter 
My PSU is supposedly "Crossfire Ready" and it came bundled with my 6850. Would I be able run two 6850's at 820/1050 on that PSU?

I'm trying to get a second 6850+PSU or Motherboard bundle on newegg to make it cheaper.
This is the VGA+MoBo Combination:
http://www.newegg.com/Product/ComboD...t=Combo.596958
I also have the mail-in rebate.
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post #17 of 22
Quote:
Originally Posted by swat565 View Post
First, even if it did work your bandwidth would be very very limited... (40-50% performance)

Second what motherboard do you have? (Don't see in sig rig)
The performance hit isn't that bad. Performance isn't halved by going to an x1 slot.

It is a pretty big hit, though. Probably closer to 25-30% instead of 40-50%.
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/hwaw
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post #18 of 22
Thread Starter 
I want to get at least 90% of the performance I get from one 6850 to two 6850s. Going with a better Motherboard, got a refund RMA.
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Skyline
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post #19 of 22
Quote:
Originally Posted by Roweyi7 View Post
you dont actually need a bridge its just there to help. but still, i see what you mean i can see a high profile graphics card hanging off that adapter somethings gonna snap.
ati/amd cards need the bridge for xfire to work. i think your talking about nvidia gpu's.

check this article about pci-e scaling. suprizing results. http://www.techpowerup.com/reviews/A...press_Scaling/
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post #20 of 22
Thread Starter 
Alright, I can get refunds for my somewhat-faulty video card, psu and motherboard. I have the 6850OC which is an expensive 194.99 compared to the $174.99 775/1000. I'll be purchasing two of those (349.99-$20 mail in rebate), a Gigabyte motherboard (or whichever good brand is the cheapest) with 2x 2.0 pci-e x16 slots and a new PSU that can run everything without crashing. What do you guys suggest? I need to spend the LEAST amount of money possible.

Open to all plausible suggestions and thanks for the input

EDIT:
I'm open to GTX460 Sli as well as the EVGA ones could be a cheaper option.
Edited by OptimusCaik - 2/14/11 at 2:20pm
Skyline
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CPUMotherboardGraphicsRAM
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|Blitz Mid-Tower| 
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Skyline
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CPUMotherboardGraphicsRAM
|B55 3.6| |Gigabyte MA770UD3| |GTX460SE 900/2000| |4GB G.Skill 1600| 
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|1Tb 7200rpm| |W7u 64bit| |23" Acer LED| |Hec-X Pro 750w| 
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|Blitz Mid-Tower| 
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