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Question/Decision Pls Help

post #1 of 3
Thread Starter 
I want to have two GPU's in SLI eventually. 6850's (Do they have to be from the same manufacturer? I.E. both from PowerColor or one from Sapphire and one from Powercolor?)

My current MB can sli two gpu's but not w/o bottlenecking the other. [GA-870A-UD3 From Gigabyte] one slot is at x16 and the other at x4.

So i'm wondering which MB I should upgrade to?
1. Asus crosshair IV extreme
2. MSI 890fxa-gd70
3. Gigabyte GA-890fxa-ud5/ud7

Now i'm not going to ever have 3 gpu's.. I think that would just be too extreme. Specifically since my main goal is simple stuff and gaming... But I <3 building pc's (though i know little about this i'm learning) it's fun and a great learning experience. But that is kind of my goal is to SLI 2 gpu's. And a decent sound card eventually.

Long story short: Which MB? Do you recommend a MB for cheaper that will just as well accomplish my needs? The asus is pricey. Please w/ your answers explain lingo and pretend i'm a PC building virgin because I am and i want to understand what you guys are saying lol. Thanks in advance.

Sys Specs: Below i think
Gaming
(16 items)
 
  
CPUMotherboardGraphicsRAM
Phenom II 1090T Crosshair V Forumula Radeon HD 6850 CF G.Skill Ares 8GB (4gbx) 
Hard DriveHard DriveOptical DriveCooling
Corsair F60 WD Caviar Black Asus 48x ODD Coolermaster V8 
OSMonitorKeyboardPower
Win7 32" HDTV Corsair K60 Corsair AX850 
CaseMouseMouse PadAudio
Coolermaster HAFX Razer Mamba Weird memory foam... Comfy! Logitech z906 
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Gaming
(16 items)
 
  
CPUMotherboardGraphicsRAM
Phenom II 1090T Crosshair V Forumula Radeon HD 6850 CF G.Skill Ares 8GB (4gbx) 
Hard DriveHard DriveOptical DriveCooling
Corsair F60 WD Caviar Black Asus 48x ODD Coolermaster V8 
OSMonitorKeyboardPower
Win7 32" HDTV Corsair K60 Corsair AX850 
CaseMouseMouse PadAudio
Coolermaster HAFX Razer Mamba Weird memory foam... Comfy! Logitech z906 
  hide details  
Reply
post #2 of 3
No you dont have to have the same brand of GPU to Xfire.

IMO the ChIV Extreme is a big overkill unless you are really into benching. The CHIV Formula is a cheaper alternative.

Also my mobo in my sig will also meet your needs and cheaper again while giving you most of the features of the others.

What I particularly liked about my mobo (apart from it being a bit cheaper) was that it had two slots of separation between the two GPUs for better airflow. The upper card tends to get a lot hotter if they are closely spaced.

http://www.bit-tech.net/hardware/mot...board-review/1
post #3 of 3
always changing
(16 items)
 
  
CPUMotherboardGraphicsRAM
i5 4690k msi z97i-ack MSI r9 290 2x8 corsair 1600 
Hard DriveHard DriveCoolingOS
m4 128  wd 1tb black noctua u9s win7 64 
MonitorKeyboardPowerCase
benq 2420z corsair  coolermaster v650 rosewell neutron 
MouseMouse PadAudio
rival 300 razer  corsair sp2500 
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Reply
always changing
(16 items)
 
  
CPUMotherboardGraphicsRAM
i5 4690k msi z97i-ack MSI r9 290 2x8 corsair 1600 
Hard DriveHard DriveCoolingOS
m4 128  wd 1tb black noctua u9s win7 64 
MonitorKeyboardPowerCase
benq 2420z corsair  coolermaster v650 rosewell neutron 
MouseMouse PadAudio
rival 300 razer  corsair sp2500 
  hide details  
Reply
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