2 out of 4 cards detected

[n190]

Hello there!

I have 4 cards in the machine, but only 2 are detected by oclHashcat 1.20 (Drivers are ATI 14.4)

Output of "aticonfig --list-adapters" is

* 0. 01:00.0 AMD Radeon HD 7900 Series
1. 03:00.0 AMD Radeon R9 200 Series
2. 04:00.0 AMD Radeon R9 200 Series
3. 05:00.0 AMD Radeon HD 7900 Series

And when I start oclHashcat

oclHashcat v1.20 starting...

Device #1: Tahiti, 2819MB, 1100Mhz, 32MCU
Device #2: Tahiti, 2964MB, 955Mhz, 32MCU

Can I only use 1 type of card or?