SLI between ASUS STRIX AND EVGA 970's

[Charles_V]

Hi people, i'm new in this forum, hope i don't offend anyone with my poor technical language.
So i been trying to configure the sli connection between an Asus Strix 970 OC and a EVGA 970 SSC, both are Nvida Geforce GTX 970, so i thought SLI would be a no brainer, so far in my nvida panel i have greyed out the SLI option, everything is connected correctly, the SLI bridge, the cards in the right slot (pcie 16x) so i dont know whats going on, i even uninstall the drivers and installed them back. Can it be possible that some models are incompatible even if they are both 970s? Both have the same 4GB of GDR5. Any thoughts would be a blast.

Here are my specs:
Asus strix geforce GTX 970 OC
EVGA geforce GTx 970 SSC
ASUS motherboard Z87 pro
PSU Sentey 750W modular
16 RAM
Windows professional 8.1
Intel i7 unit

 

[LucaFire]

Sorry to see this reply came so late, let's see if I can help
Two different cards of the same type from different manufacturers are fine as long as they have the same memory and the same clocks. If the cards have different memory and different clocks, I don't think they're work in SLI.
If they have the same memory but different clocks, then if one card is overclocked, it will lower it's level to the lower clock level GPU so that they're the same. You can also overclock a non overclocked card to get it to the same clock speed as the other GPU.

Here is a link to some more info on SLI from the GeForce website:
http://www.geforce.com/hardware/technology/sli

 

[junkeymonkey]

some evga card in the 970 may not sli.. that's even with there own cards [ some evga 970 cards will not sli with some evga 970 cards ] theres a list of the ones that can sli together and the ones that will not

so you may need to look at that real hard . if evga cards are not sli compatible with there own models more or less another brands cards ???


the chart

https://www.evga.com/support/faq/afmviewfaq.aspx?faqid=59534

so I guess you mix and match for sli at your own risk cause you don't know where a asus card fits in ???

the 970 has no NVidia reference design so manufactures can make them how ever they want to and not follow any NVidia spec..

''Furthermore, as we mentioned in our GTX 980 review, GTX 970 has been a pure virtual (no reference card) launch, which means all of NVIDIA’s partners are launching their custom cards right out of the gate. A lot of these have been recycled or otherwise only slightly modified GTX 700/600 series designs, ''


''If you've already worked your way though our GTX 980 review, then you'll know that unlike that card, Nvidia is not producing a reference model of the GTX 970, the second enthusiast-grade Maxwell part that replaces the GTX 770 in the product stack. The images on this page do not reflect a ready to buy product. Instead, Nvidia's AICs will be able to purchase the GPU and memory chips, but after that it's up to them, and this will undoubtedly lead to a high degree of variability when it comes to PCB and cooler design as well as factory overclocks''

 

[junkeymonkey]

some more help, maybe??

http://www.tomshardware.com/answers/id-2658882/gtx-970-sli-asus-strix-evga-ssc-working.html