Problem Asrock 970 Extreme 4 AMD970

[nunoborges]

Hello everyone,
First post in here
I'm trying to bulding a new computer with 5 Graphic cards, with this board Asrock 970 Extreme 4 AMD970
About PSU i have two of 1050W
Using AMD FX 4300 Black Edition 3.8GHz Processor.
And 8GB of RAM
Now my problem is, i only can boot up the board with to graphics cards one in Slot 1 and another in slot 3 ( all my Graphic cards are good) i look at the bios and i think everything is good, but i'm thinking that this problem is something that is not configured in the bios (thinking) anyone allready had this issue and know how to help me

Best Regards Everyone
NB

 

[Zerk2012]

Supports AMD Quad CrossFireX™, 3-Way CrossFireX™ and CrossFireX™
- Supports NVIDIA® SLI™
http://www.asrock.com/mb/AMD/970%20Extreme4/index.us.asp?cat=Specifications
If your not using AMD cards then you can only use 2 cards.
From their listing the cards your trying to use might get you more help.

 

[nunoborges]

Supports AMD Quad CrossFireX™, 3-Way CrossFireX™ and CrossFireX™
- Supports NVIDIA® SLI™
http://www.asrock.com/mb/AMD/970%20Extreme4/index.us.asp?cat=Specifications
If your not using AMD cards then you can only use 2 cards.
From their listing the cards your trying to use might get you more help.

I'm Using AMD Cards R90 not Nvidea....

 

[Zerk2012]

It says it will support 4 cards.