Here is my 6x HIS 7950 IcqQ x2 @600 khash/s [scrypt] each
This was fun to build while waiting way too long for my grakas
The current setup is:
MSI Z77A-G45
6x HIS 7950 IceQ X2 - one is still not working - the problem should be the last remaining x16 riser which gets replaced with an powered x1 riser this weekend
LEPA 1600W NT
4GB G-Skill Ripjaws
40 GB Seagate HDD
current Riser: 2x powered x1,3x default x1, 1x default x16
consumes 1420W with 5 x grakas
currently running under Windows7 64 bit with cgwatcher and cgminer3.3.1 with param:
CoreClock: 1003 Mhz
MemClock: 1490 Mhz
Powertune: 20
ThreadConcurrency=21712 Intensity=19 GpuThreads=1 Vectors=1 Worksize=256
works remarkable stable for windows
Note: for getting windows amd driver 13.4 run with > 4xgrakas i had to do an install of 12.6 before. reboot and install 13.4 without uninstalling 12.6 before to benefit from it! - you dont need CCC
Some Story:
My first few setups had been with Mint, Xubuntu, Ubuntu, several BAMTs. Each one had driver, x and kernel vga_arbiter issues which was very frustrating - so lets try windows *pff*
Then, by googling my windows errors
-i finally found my failure: Using several slots with x16 connectors, this downgraded, disabled the other pcix slots. Blame all motherboard producer, for not giving a full technical description for this pci express slot behaviour!
Right now i`m doing another Xubuntu setup, giving linux another chance! It´s errors was completly legitim and it simply makes a lot of fun
i will update this post with xubuntu results.
This was fun to build while waiting way too long for my grakas
The current setup is:
MSI Z77A-G45
6x HIS 7950 IceQ X2 - one is still not working - the problem should be the last remaining x16 riser which gets replaced with an powered x1 riser this weekend
LEPA 1600W NT
4GB G-Skill Ripjaws
40 GB Seagate HDD
current Riser: 2x powered x1,3x default x1, 1x default x16
consumes 1420W with 5 x grakas
currently running under Windows7 64 bit with cgwatcher and cgminer3.3.1 with param:
CoreClock: 1003 Mhz
MemClock: 1490 Mhz
Powertune: 20
ThreadConcurrency=21712 Intensity=19 GpuThreads=1 Vectors=1 Worksize=256
works remarkable stable for windows
Note: for getting windows amd driver 13.4 run with > 4xgrakas i had to do an install of 12.6 before. reboot and install 13.4 without uninstalling 12.6 before to benefit from it! - you dont need CCC
Some Story:
My first few setups had been with Mint, Xubuntu, Ubuntu, several BAMTs. Each one had driver, x and kernel vga_arbiter issues which was very frustrating - so lets try windows *pff*
Then, by googling my windows errors
-i finally found my failure: Using several slots with x16 connectors, this downgraded, disabled the other pcix slots. Blame all motherboard producer, for not giving a full technical description for this pci express slot behaviour!Right now i`m doing another Xubuntu setup, giving linux another chance! It´s errors was completly legitim and it simply makes a lot of fun
i will update this post with xubuntu results.
Your problem is not the extender. You can't run 6 cards you don't have enough IRQs the only way you can do it is if you crossfire!