My apologies, mispelled a letter, yes, arctic silver 5, as5. I've read somewhere that , being very conductive with all the silver and stuff, and the GPU having exposed components on the edge, it's better not to risk shorting those with as5 and use instead some ceramic based themal paste. Or pads.
I've had a surprise with the evga cards, when I've cleaned the melted remains of the original thermal pads and applied some AS5, well, there is some space left, the pads being thicker than the layer of paste, the HS barely touched that as5 layer.
Made some more tests with Gigabyte OC Guru, ambient temp 25C, I've bought a big 200mm lateral fan for the haf922, I lowered the clocks at the very minimum, 430 or something, guess what...still 50C. I also went to setting the clock to 1050 and 1100, just to see the idle temp, but the card resets itself to 950, as read with gpu-z.
The official reply mail from gigabyte support said that 50C idle is normal...allright...so much for believing the 28-30C reviews.
It's not the temps that bothers me, really, it's the long wait for the rma if it happens, and I'm afraid it's only a matter of time .
I wish the warranty policy would be a little more lax, evga style. Because my old 460 HS is kind of full of dust now and I can't even remove the plastic top to brush it off ? That's what the guy said...
My mistake, actually, I should have invested in a normal vanilla card, non-oc, and a decent combination of water cooling components, lesson learned.
Cheers