Quote from: Strannik-74 on May 15, 2014, 02:10:56 AM

Quote from: z0rr0 on May 15, 2014, 01:35:36 AM

Quote from: Strannik-74 on May 14, 2014, 10:14:47 PM

On most GPUs triggered throttling v9, no settings do not help, I do not know what to do = (

I had such throttling with one of 7950 even with v8.
On v9 situation repeated. I'm using heavily undervolted GPUs, so I dropped core clock a bit, added +10 power limit and throttling gone, straight 99% gpu load.

v1.5-v8 all gpu work norm.
v9 - 7x7850 Gigabyte, 8x270X Powercolor/Sapphire, 6x7950 ASUS/Gigabyte/Sapphire VaporX, 2x280X MSI - work normally
v9 - 10x7950 Sapphire Dual X & 20x270X Gigabyte(Best card in its class) - trottling. I have tried all possible options settings nothing helps.

Those cards that work norms:
v 8.0 v 9.0
280X 164k 4ch & TRT 152 & 4.9CPD -> 186k 4ch & TRT 132 & 5.5CPD-- CPD + 12%
7950 127k 4ch & TRT 195 & 3.7CPD -> 143k 4ch & TRT 170 & 4.2CPD-- CPD + 13%
270X 103k 4ch & TRT 242 & 3.0CPD -> 116k 4ch & TRT 200 & 3.4CPD-- CPD + 13%
7850 77k 4ch & TRT 320 & 2.3CPD -> 92k 4ch & TRT 267 & 2.7CPD-- CPD + 17%

I just noticed that without touching any other options (clocking and other) one of my ASUS 7950 (0.97V 950/625) with power limit 0% goes throttle, and with power limit +10% all fine (about 4 CPD).
Another ASUS 7950 on another machine with the same settings and power limit 0% works fine...

So I'm guessing v9 just draws more power...it is possible more noticeable with multi GPUs setups (however it is really strange that it depends on the models of the cards as in your example).