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Hey dude, had the exact same problem. I literally just fixed it right now. Only problem is, I was doing two things at the same time (registry changes and driver I found), so I don't know which one fixed it :P here is the driver I installed, then rebooted and changed to AHCI...

Source on the yield problems? AFAIK it's just HBM that's slowing down production,

Which honestly I don't mind. Those cost saving measures all add up, allowing a powerful, small, low power usage chip for a better price!

That's what I said. "mins and avgs".

Apparently there are great gains. Guy on OCN, mins and avgs up higely in Far Cry 4 at 1440p. Avg of 65 to 80! http://www.overclock.net/t/1547314/official-amd-r9-radeon-fury-nano-x-x2-fiji-owners-club/2430#post_24147663

You might not count them, but Amd might, hence their wording.

It's plenty. That's an extremely high quality CPU. Edit: Or not, see above. Thought you meant to use just one 295x2.

The Asus Matrixes were over volted a ridiculous amount, massively inflating the power draw But still, the power draw on this 290x is quite a bit lower. I've read on ocn that it's due to th memory they use or something, either way, it's know that the Powercoor PCSs draw less than other 290...

The euro has been tanking hardcore vs the dollar in recent months. I wonder will this the price ultimately (in Europe)?

This card is a beauty, I have the 290 version and have it clocked at 1200/1600 at plus 100mv (very reasonable long term overclock, spikes to 1.3v but stays around 12.5 most of the time). and at 50% fan it stays below 75c in all games. The 290x Vaporx has much better power delivery compared to...

Absolutely. it's probably enough for a good overclock too as long as you have an Intel system.

Nope, 28nm still. Neither nVidia nor AMD will have 20nm for at least another 6 months.

Both the PCS+ and Trix have very good aftermarket coolers. The PCS+ scores better in terms of temps in benchmarks, but this is primarily due to the fan curve on it at stock (very aggressive). Outside of the Vapor X and Ligtning coolers, the PCS and Trix are the best 290(x) coolers.

Ah well. I suspect the VaporX is a slightly beefier cooler, and probably has fans which spin faster than 2000 RPM (a limitation of the Acclero, the fans even at 100% were really quiet, why not just put fans in there that can hit 3000 plus RPM and let the user decide? :P).

Getting a 290 soon enough, I wonder would my old Accelero Xtreme 7970/7950 cooler fit on the Vapor x board, and would it provide better cooling? :P

VRM temps available for these cards? I'd like to see how hot they get when you pump in more voltage to retain the 1175mhz core clock, if they stay below 85 it would be preferable.

Agreed. 290 is only 5%~ (or less) slower per clock speed compared to the 290x and is a hell of a lot cheaper. I'd grab a Trix 290 or Vapor X 290 and pocket the massive savings for marginally less performance.

Yep, you need great airflow throughout your case (and that includes a nice gap between the two cards on the motherboard) to utilise those coolers efficiently and effectively in crossfire.

Seeing the frametimes hit would be interesting. The FPS his is minimal but it might be choppier than the FPS might suggest.

What are your temps so overall? Idle core and VRM temps (include ambient). I bought some Fujipoly extreme a while back for my 7950 and Arctic Accelero but I decided to keep them until my next upgrade, which could be a Trix 290 :P

105 of Ivy, 100 for Haswell, I'm guessing 100 for DC too (same silicon as haswell), but I could be wrong.

Fantastic cooling. They really nailed it.

Blower coolers always struggle in Crossfire (the top card anyways) unless there is great airflow and a nice space between them).

VaporX number one, followed closely by the roughly evenly matched Trix and Powercolor PCS+.

If you could grab a 290 (they are going for as low as 330 recently) it would be great, they are a big step up from the 280x.

The reason the reference cards keep the VRMs cool is because the single fan blows cool air over the VRMs directly before the air reaches much else, I think. Sick mod, though. What kind of overclocks can you hit with that setup? It would be nice to see that with the Accelero Xtreme cooler, which...

Which 780 cooler does that? None AFAIK unless you have sub 15 degree ambients or something crazy like that. Or maybe your are CPU limited ingame. NO aftermarket cooler on a 290 or higher or 780 or higher does 60 or less unless under water. Even acceleros do about 60 -65 under load.

Texture mods aren't gpu intensive and eat up RAM.

It's worth it for some people, and not for others, simple as that. For people gaming on multiple high res monitors this is what they need, no doubt about it, for others, it's a complete waste ofc.

What are the VRMs like? I'd say that badboy can make 1150-1200mhz when overvolted + overclocked.

Furmark is very intensive - it could well be throttling too, have you checked your temps (core and VRM) when the speeds start dropping? It could be power throttling too, so bump the slider up to +20% to make sure that's not happening. If you want to overvolt too (so you can overclock higher)...

As well it should be.

I've heard this before and I don't know if it has any basis in truth.

Valley is less intensive than some games. Furmark would be an an exceptionally intensive burn in test, not Valley lol.

Yeah, I wondered when I saw mining and brand new in the same sentence :D

Wow, what a sick sick price.

Yes, a good 850watt unit should be enough for a 290 crossfire system.

From what I've seen it'a mixed bag. It seems some of the XFX cards have faulty (poor) VRM cooling, others others then have more than acceptable (good) VRM cooling.

Honestly I wouldn't get a 290x, I'd get a 290, something like 5% slower clock for clock and a whole lot cheaper. Some great models going for only 400 bucks right now.

Wow, that's disgustingly low, what a deal!