Thanks Nefario for keepass.
Yesterday received 4 nos. of 6970 graphics card. MSI R6970 Lightning. Each card is 22800 INR.
I installed one card & installed catalyst then another.....
So, it took almost more than 4-5 hours.
I did coz, so far many told windows don't support more than 4 cards.
After installing all the 4 6970 cards, i installed the old 5870 cards.
From there problem started. I can able to mine with 4 cards, but it seems after 5th card driver corrupted & opencl gone...
Running phoenix gives windows error. I am going to try now AMD APP 2.4 both 32 bit & 64 bit.
Catalyst version is 11.6, released 1-2 days before.
With the happenings so far i can say windows won't support more than 4 GPU's is a myth.
But, still their is something.
It seems windows don't support more than 4 GPU, if GPU is 5000 series & if its 6000 series, Windows supports.
I added screen shot of device manager.
Also MSI Afterburner 2.1, 2.0 & 2.2 beta, all giving me same error as in pic.
Also, i see a strange problem.
I can only use 1x extender in 1,2,4,5,6,8 pcie slot only.
Installing graphic card with 1x extender in slot 3 & 7 , doesn't get detected by windows.
I tried slot 3 with 16x extender & card detected.
Then i connected slot 5 with 16x extender, since many saying windows won't support more than 4 GPU.
But windows detected with out problem & then i removed the 16x extender in slot 5 & replaced it with 1x extender.
so now, 7 cards connected to rig with this configuration & order.
slot 1,2,4,5,6,8 - 6 cards connected with 1x extender
slot 3 - 1 card connected with 16x extender.
slot 1,2,3,4- MSI R6970 Lightning card.
slot 5 - Sapphire 5870
slot 6,8 - ASUS EAH5870.
slot 7 is free & it accepts card only with 16x extender only.
I ordered 21 nos. of 1x extender & 2 nos. of 16x extender last month from cablesaurus last month & used it.
Already ordered another 6 nos of 16x extender (June 4th or 5th), waiting for cables to reach.
If anyone have any idea why phoenix give error, please share.
Have to try with poclbm.
Having to give details of 7 miners to every mining software from GUI's to cmd is really giving pain.