Topic Title: which motherboard is better for crossfire? ------'SOLVED'------
Topic Summary: help me out please
Created On: 11/20/2013 03:42 PM
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 11/20/2013 03:42 PM
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deathcrush87
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allright guys,

after a few months, im still having crossfire crashes.

i just discovered that crashing only happens when there is a graphics card in second pcie working (single or in crossfire).

so i RMAed my mobo and received the replacement yesterday, which was the same brand and model, and had the exact same problem with 2 pcie crashing.

as i think all of them are faulty, im going to send this back to the company and buy either asus sabertooth or asus formula v.

http://www.dabs.com/products/asus-crosshair-v-formula-z-am3--amd-990fx-ddr3-atx-883Z.html?refs=473460000&src=3

http://www.dabs.com/products/asus-sabertooth-990fx-am3--amd-990fx-sb950-ddr3-atx-tuf-r2-0-87RQ.html?refs=473460000&src=3

which one is better for crossfire? 

i dont know which one is better, there is just a difference in price tag.

if there is not moch difference, well it is wiser to get the cheaper sabertooth, right?

 

please advise me through this.

any advice is welcomed.

 

my current mobo is gigabyte GA 990FXA-UD3 rev3.0

my pc specs:

- amd fx8350 @ stock 4.0ghz

- corsair vengeance cl9 8gb @ 1600 mhz

- corsair cx750

- 2xgigabyte hd7870 oc crossfired

 

many thanx!



-------------------------

AMD FX8350//Corsair vengeance DDR3 CL9 8GB@1600//Asus ROG Crosshair V Formula z//Asus R9 290X oc DCII//Corsair CX750//Razer Lycosa//Corsair M30//Zalman Z11 plus case//Kingston 120gb SSD//Yamaha Audiogram6//Windows 8.1 64bit//



Edited: 02/07/2014 at 11:56 AM by deathcrush87
 11/21/2013 02:23 AM
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UcouldBrong
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Both are excellent motherboards.  The Sabertooth is tough, tried and proven.  I would go to ASUS's ROG site forums where users relay their experiences with them which may help you with your decision.

According to Legionhardware each of your cards is using 330W when stressed.  You are getting close to pushing them past what your power supply can consistently provide with a degree of stability.

Read a review on Newegg's site about this mobo indicating the FX8350 requires more power under stress than what AMD has indicated potentially throttling down the cpu and crashing.  Adding 330+330+125 + + + watts could be problematic when under stress.

 

 

 



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Non-noob components.

 11/21/2013 06:00 AM
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deathcrush87
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hi mate,

thanx for the reply.

i doubt the powersupply issue, as crashings are not following any logics, sometimes after 6 continuous hours playing a game and sometimes 5 seconds into the same game.

i read that the VRM of my current mobo is really bad as they get melting hot and make the system unstable. there is actually a website for 990fxa-ud3 rev3.0 owners that is full of complains.

anyway, i would change my psu in future no doubt, but as of now im stuck with choosing between those two mobos above.

i checked the forums before posting here, recommendations are varied and are not based on any knowledge, its just the simple case of : "im having this mobo and its awesome!".

this forum is one that i trust, and ppl have knowledge, so naturally i search for advice here.

i have to say, that formula really caught my eyes, but i dont know if it worths the extra £££ or not?

someone in tomshardware said sabertooth is better for multiple gpus, i dont know if it is valid..



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AMD FX8350//Corsair vengeance DDR3 CL9 8GB@1600//Asus ROG Crosshair V Formula z//Asus R9 290X oc DCII//Corsair CX750//Razer Lycosa//Corsair M30//Zalman Z11 plus case//Kingston 120gb SSD//Yamaha Audiogram6//Windows 8.1 64bit//

 11/21/2013 08:52 AM
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black_zion
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If you're not going to use nVidia graphics cards, or the FX 9000 series, which you aren't, then I would go with the Sabertooth and save the £33.

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ASUS Sabertooth 990FX/Gen3 R2, FX-8350 w/ Corsair H60, 8 GiB G.SKILL RipjawsX DDR3-2133, XFX HD 7970 Ghz, 512GB Vertex 4, 256GB Vector, 240GB Agility 3, Creative X-Fi Titanium w/ Creative Gigaworks S750, SeaSonic X750, HP ZR2440w, Win 7 Ultimate x64
 11/21/2013 09:47 AM
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deathcrush87
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thanx Zion,

so amd multiple gpu-wise, there is no difference between the two right?

i go for the sabertooth then.

many thanx.



-------------------------

AMD FX8350//Corsair vengeance DDR3 CL9 8GB@1600//Asus ROG Crosshair V Formula z//Asus R9 290X oc DCII//Corsair CX750//Razer Lycosa//Corsair M30//Zalman Z11 plus case//Kingston 120gb SSD//Yamaha Audiogram6//Windows 8.1 64bit//

 11/21/2013 11:29 AM
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Earnhardt
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I have had a sabertooth in my system for 2 years without any issues whatsoever.love it.



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AMD Phenom II 1100t @4.0Ghz /Asus sabertooth 990fx/2x Gigabyte 3G 7950's in crossfire/500G samsung 840 ssd/16G G-Skill Ripjaw 1600/2-samsung 24" monitors 1920X1200/Corsair AX1200W psu/W7 pro 64,G19 keyboard,Roccat kone pure mouse,Cooler master HAF932,Corsair H100i water cooler,Zalman ram cooler.Sound Blaster X-Fi Titanium Fatal1ty Champion Series,Logitech Z5500 speakers,Roccat Kave 5.1 headset.

 11/21/2013 01:14 PM
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Slayerx
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I'm loving mine

Best mobo I ever had



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FX 8320// Asus Sabertooth R2.0 // HIS R9 280x //8Gb of 1866Mhz ram, H50 cooling, HX850W psu all stuffed into a NZXT Phantom case.


Was a member of AMD Processer forum since 2008. Last post count 1818.

 11/21/2013 05:46 PM
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black_zion
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I've got the upgraded Sabertooth Gen3 R2 model and couldn't be happier, and it is essentially the same thing as the regular Sabertooth with PCIe 3.0 capability.

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ASUS Sabertooth 990FX/Gen3 R2, FX-8350 w/ Corsair H60, 8 GiB G.SKILL RipjawsX DDR3-2133, XFX HD 7970 Ghz, 512GB Vertex 4, 256GB Vector, 240GB Agility 3, Creative X-Fi Titanium w/ Creative Gigaworks S750, SeaSonic X750, HP ZR2440w, Win 7 Ultimate x64
 11/21/2013 11:34 PM
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UcouldBrong
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Having the Formula V and encountering no problems and experiencing blissful performance...would endorse the Formula series.

 

You will find more technical support and enthusiasm from the ROG Forum for your issues than you will here (no offense intended to the readers and responders here).



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Non-noob components.

 11/22/2013 04:19 AM
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deathcrush87
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back to the doubt lol

what is the ROG?

i think i would consider formula, im not sure yet.

my current mobo is so bad that i would pay extra £33 just to make sure everything is perfect.

havent decided yet though..

 



-------------------------

AMD FX8350//Corsair vengeance DDR3 CL9 8GB@1600//Asus ROG Crosshair V Formula z//Asus R9 290X oc DCII//Corsair CX750//Razer Lycosa//Corsair M30//Zalman Z11 plus case//Kingston 120gb SSD//Yamaha Audiogram6//Windows 8.1 64bit//

 11/22/2013 12:23 PM
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UcouldBrong
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...Republic of Gamers (Asus).



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 11/22/2013 02:01 PM
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deathcrush87
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thanx.

does it come with free games?



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AMD FX8350//Corsair vengeance DDR3 CL9 8GB@1600//Asus ROG Crosshair V Formula z//Asus R9 290X oc DCII//Corsair CX750//Razer Lycosa//Corsair M30//Zalman Z11 plus case//Kingston 120gb SSD//Yamaha Audiogram6//Windows 8.1 64bit//

 11/23/2013 01:08 AM
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UcouldBrong
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Making a wise choice gives you wisdom. 



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Non-noob components.

 11/29/2013 06:05 AM
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zeroarmy27
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I have a GA-990FXA-UD3 v1.1 myself. The VRMs are weak, the LLC is very irratic, fan control is wretched, and northbridge thermal dissipation is cheap and shoddy.

 

ASUS boards are the way to go. The Sabertooth 990FX/GEN 3 V2.0, which has PCI-E 3.0 support (2x bandwidth vs PCI-E 2.0) comes highly recommended from building custom rigs.

Your CPU will bottleneck the cards. Each card will consume 350W of power, so you will NEED a new, good PSU (especially considering you are overclocking.) Power Supply Units have some loss due to heat, fan use, etc. Go for Gold or Platinum rated units to ensure you are getting the highest efficiency you can. Search for a PSU requirements page on a search engine.

 

I'm willing to bet your crashes are due to low voltage and heat under demand. This could be exacerbated by BIOS settings and the weak VRMs.

 

Good luck, friend.

 11/29/2013 11:30 AM
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deathcrush87
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hi zeroarmy27,

and thanx for the reply.

with all due respect, i dont know where you guys get your information and stats about my psu being non-sufficient

http://www.tweaktown.com/asktheexperts/157/what_psu_should_i_buy_for_my_radeon_hd_7870_crossfire_system/index.html.

as i said above, i will change my psu in near future, but im %82 sure that my problem is not psu-related.

under stress, playing demanding games like crysis 3, bf3 etc. the crashes happen sometimes after 5 hours and another day in just 10 minutes with the crossfire on.

i experimented with my mobo and found out crashes only happen where there is a working graphics card in the 2nd pci-e.

it could be dodgy northbridge, VRMs snd God knows what else.

but rest assured it didnt have to do anything with the psu, as psu and low voltage will have crashes following a linear pattern, like everytime after 10 minutes for example.

as i play all of my games on a 1440x900 monitor, and usually on low graphics as i want outstanding fps, could you please explain what stress was being forced on my gpus?

thanx anyway.

 



-------------------------

AMD FX8350//Corsair vengeance DDR3 CL9 8GB@1600//Asus ROG Crosshair V Formula z//Asus R9 290X oc DCII//Corsair CX750//Razer Lycosa//Corsair M30//Zalman Z11 plus case//Kingston 120gb SSD//Yamaha Audiogram6//Windows 8.1 64bit//

 11/29/2013 12:57 PM
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Vantharas
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Your power supply is more then enough. Corsair makes quality units with some of the lowest voltage drops / power ripple in the industry. You've nothing to worry about.

Those cards do not consume anywhere near 350w of power each. Its 175W TDP , 350W combined for the pair, and if you oc them another 100 mhz your looking at roughtly 200ish, or 400 for the pair. 

 



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I5 3570K@4~5.0ghz: Gigabyte GA-Z77X-UD3H:Corsair Hydro H110 :16GB Corsair Vengeance DDR-3 1600: XFX Radeon 7950 @ 1100/1575 : Corsair AX 860 PSU: x1 WD Black 1TB HDD's: 90GB Agility 3: 960GB SSD : Creative Labs X-FI:Corsair 500R Arctic White Edition:3 22inch Monitors Eyefinity @ 5294x 1050 : Alienware Tact-X Keyboard: Razer Naga :Corsair Vengence 1500 Headset: Corsair SP2500 Speakers



Edited: 11/29/2013 at 01:30 PM by Vantharas
 11/29/2013 02:57 PM
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deathcrush87
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thats what i found on the web.

glad my psu is fine.

thanx



-------------------------

AMD FX8350//Corsair vengeance DDR3 CL9 8GB@1600//Asus ROG Crosshair V Formula z//Asus R9 290X oc DCII//Corsair CX750//Razer Lycosa//Corsair M30//Zalman Z11 plus case//Kingston 120gb SSD//Yamaha Audiogram6//Windows 8.1 64bit//

 11/30/2013 01:42 AM
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UcouldBrong
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Sometimes we find what we "want" on the web...as previously noted...my search "found" much higher tested results for gpu power usage.

If you are encountering occaisonal crashes, shouldn't be too concerned about it.

We are offering the benefit of each reader's experiences.  My experience is that if you OC a graphic card...even a little bit, your chance of a crash goes up expotentially.  Loading up a psu with high current demands can easily crash your system.  If you have thoroughly studied your motherboard manual and understand your BIOS you can reduce the likelihood of crashes, too.  Why, I'd even make sure all your components were as dust free as possible to lessen any possiblity of restricted airflow to the psu, gpu, etc.  Up to you to make your own decisions.



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 11/30/2013 04:53 AM
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deathcrush87
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thanx for the reply mate.

my gpus are factory overclocked, i have no idea and intention of overclocking anything.

i searched before, and i searched yesterday and i couldnt find any web page suggesting that my psu was not sufficient.

if you have any links, please share it with us.



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AMD FX8350//Corsair vengeance DDR3 CL9 8GB@1600//Asus ROG Crosshair V Formula z//Asus R9 290X oc DCII//Corsair CX750//Razer Lycosa//Corsair M30//Zalman Z11 plus case//Kingston 120gb SSD//Yamaha Audiogram6//Windows 8.1 64bit//

 11/30/2013 05:10 AM
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deathcrush87
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fyi

http://www.guru3d.com/articles_pages/gigabyte_radeon_hd_7870_oc_review,7.html

 



-------------------------

AMD FX8350//Corsair vengeance DDR3 CL9 8GB@1600//Asus ROG Crosshair V Formula z//Asus R9 290X oc DCII//Corsair CX750//Razer Lycosa//Corsair M30//Zalman Z11 plus case//Kingston 120gb SSD//Yamaha Audiogram6//Windows 8.1 64bit//

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