Ive this problem with this miner, nbminer.

When i use Claymore to minining Etherum i dont have problems (Stable temps below of 75ºC, until 67ºC in cold days).
But with nbminer and RavenCoin my cards feels a big high change (about 20%), one card touched the 90ºC, and the rest until up 80º- 85º.
Have I  any option in nbminer parameters in Bat file to avoid this? Also i see the problem is with 4 GB Cards.

I have the following hardware cofig:

Only 1 PC with 1 Card (my Main pc, only use to mining in free time) With RX 570 8 GB Asrock (no problems with this card)

and in my Main Miner i have 5 cards (the main the same of before but in Asus) and the rest are:
x2 Radeon RX 470 (Sapphire x 4 GB)
x2 Radeon RX 570 (MSI x 4 GB)
Powersuply: Seasonic 850W

The only cards without problems are the 8 GB

Exist other minner for RavenCoin, or anyconfig to avoid this problem?