I modded my Ultra-D to the SLi and during bootup the system recognizes the board as Nvidia SLi. When I get into windows and use EVEREST or anything. This is not an issue with Different SLI. This is not necessarily an issue with NVIDIA drivers. This is an issue with Windows 10 not being able to load WDDM 1.3 mode drivers and WDDM 2.0 mode drivers simultaneously. It won't even work with Microsoft's native drivers. To all hybrid sli users. I'm personally using your 185.68 drivers, also have had good luck with all the laptopvideo2go modded drivers pre-4.0 inf.

Way to void your warranty? I told aw i will keep the sli because they don't let me upgrade to 5870 cfx. If not dx11, at least have hw physx. But when i had that conversation, i had no idea is not as easy 'just put it in and install the drivers' on the other hand it looks different 'positively' i much prefer nvidia anyway.

And i prefer repairing my own laptop not even 1 dell engineer touched after i got it. 1st time i had a motherboard replacement the engineer had no idea how to open the laptop, so i just told him let me do it if not you can go away and i file a complaint. Next time i not even wait just told him i don't let you touch my laptop. Is all because mistrust after on my m1730 the engineer damaged a few things. I did some additional testing.

Both cards got its benefit but i see all people using ati cards still moaning about PhysX. As i recall nvidia offered the engine for ati after they acquired Ageia. Att Text To Speech Converter on this page. but ati said @?#.so ati users got 2 option use an old Ageia card of get an nvidia 8800 class and install hacked drivers. Ati and nvidia declared war and so, war it is. My conclusion is that. ATI cards have nice quality at least. I had no problem playing any game until is require HW PhysX mostly my games using unreal engine (ut3, me1, me2 like).

Testing environment m17x-r2, BIOS A06,RAID 0 7200 RPM 1 Seagate 1 Toshiba 320 GB all Windows 7 x64 both card with same installed system ATI 5870 Alienware driver for the 4870's, GTX 260M nvidia 258.96 modded driver and video hex-edited bios both cards hard oc'd via BIOS furmark multigpu ati 3185 point nvidia 4311 point not bad 3d mark 06 ati 12432 point nvidia 12645 thanks for hw physx overall the laptop running cooler round 45c with nvidia coolers running smooth even speed. On sturtup the fans speed up evenly and keep constant low speed until i start a game on startup with atisuddenly turn full speed then slow down and always changing slow fast and so on.so annoying. If someone could point me out basic issues with m17x-r2 with ati config i'll try test them with nvidia is the issue still exist or not. I think, this shouldn't your concern.this laptop is my 3rd dell and 2nd alienware m17x i know what to do.today i was just on the phone with technical support about this issue.

I been told if i want to upgrade to 5870 cfx i need to pay almost ﾃつ｣500 for the whole set, even my laptop only a week old. Some jerk don't authorized the upgrade for me. So i made a deal i send the 4870 cfx back with my old dead lappy and keep the GTX260m SLI set. If i succeed that, my laptop is going to be the 1st 'official' Alienware M17x-R2 with nvidia SLI what customer using oh by the way one of the engineers congratulated my work because this config not even supposed to power up at all.