successfully flashed 6950's but no crossfire..HELP

iam1simpleguy · Oct 22, 2011

I have successfully flashed 6950's to 6970's.As instructed in the guide how to mod it to 6970 i have done by putting single card.And yes it showed unlocked shaders and clock.But now i dont see Crossfire and CCC nor second gpu in Device Manger nor GPUz.
Things i have tried..
Fresh windows install..Tried driver..11.3-11.5-11.10 preview drivers but no success.
triple checked Crossfire bridge.im using single crossfire bridge
tried swaping the cards..
Tried by using only single gpu..just to make sure any card is defected.
Flashed back to 6950 (as original bios was saved)both the cards and yet no crossfire.
Updated bios of my mobo p8p67pro.
And now im out of options.Been googling all sorts of forums..Hope anyone here can help me.

Bo$$ · Oct 22, 2011

reformatting might help

iam1simpleguy · Oct 22, 2011

reformat what?? HDD? i installed fresh windows...that wont do?
and i flashed back to 6950 and still no crossfire.

FreedomEclipse · Oct 22, 2011

have you tried a clean driver install?.

----

Secondly you should have posted this in the graphic card section of the forum...not in overclocking/cooling

iam1simpleguy · Oct 22, 2011

I had made of Norton Ghost when i installed a fresh windows..and i ran that ghost again..means no drivers are installed whatsoever..aint that enough?

Deleted member 67555 · Oct 22, 2011

Why not try a full reinstall of windows from the windows disk and not from an ISO image of the same thing you had before

Darkleoco · Oct 22, 2011

jmcslob said:
Why not try a full reinstall of windows from the windows disk and not from an ISO image of the same thing you had before

If you don't want to do that right now you could try asking here: http://www.techpowerup.com/forums/showthread.php?p=2433285#post2433285

If it has to do with 6950 flashing you should be able to find someone who can help their hopefully.

manofthem · Oct 22, 2011

Are the pci-e cables plugged into the second card?

Check GPUz to see if the second card is coming up at all.

Darkleoco · Oct 22, 2011

Make sure you try reseating the second card since I had that problem once and it took me awhile to realize it.

iam1simpleguy · Oct 22, 2011

Well yes i have checked the pci cables each n everytime and gpu z never showed the second card.

Deleted member 67555 · Oct 22, 2011

Have you installed the latest chipset drivers for your board?
I hate to ask such a dumb question....please don't take offense

alexsubri · Oct 22, 2011

Couple of things to do, before reformatting (always a last resort)

Make sure the Crossfire Bridges are connected
Make sure that the Crossfire Bridges are not damaged (cuts , tears, dust free)
Make sure all your 6-pin PCI-E connectors are in correctly
Device Manager - > Display Adapters (How many are displayed?)
If all else fails, download DriveSweeper and unistall all ATI programs/softwares and all the alike
If Drive Sweeper fails, try running your GPU with only one and test the one that is not working
If your GPU is faulty, try to reflash the 2nd GPU back to a 6950 (does it have a BIOS switch, if so swithc the BIOS)
If all else fails you can Reformat Windows or RMA the card

iam1simpleguy · Oct 22, 2011

Yes i installed latest chipset drivers....you are just trying to help me ,i dont think it should be offensive anyway.

Make sure the Crossfire Bridges are connected=======Yes
Make sure that the Crossfire Bridges are not damaged (cuts , tears, dust free)====Not Damaged
Make sure all your 6-pin PCI-E connectors are in correctly==Connected
Device Manager - > Display Adapters (How many are displayed?)===Only Single Gpu is showing
If all else fails, download DriveSweeper and unistall all ATI programs/softwares and all the alike===Im gonna install fresh windows..
If Drive Sweeper fails, try running your GPU with only one and test the one that is not working====Tried both the cards..and both are working fine..
If your GPU is faulty, try to reflash the 2nd GPU back to a 6950 (does it have a BIOS switch, if so swithc the BIOS)====I have reflashed both back to 6950 with original bios and both are working fine individually.Gpuz shows shaders and clock perfectly.

Goin to format and install windows again

Deleted member 67555 · Oct 22, 2011

From the original windows disk right?
sorry it just helps eliminate a possibility

erocker · Oct 22, 2011

iam1simpleguy said:
Device Manager - > Display Adapters (How many are displayed?)===Only Single Gpu is showing

This leads me to believe it may be motherboard related. What motherboard are you using and what bios is currently flashed to the board?

manofthem · Oct 22, 2011

What PSU are you running? You could try switching the pcie cables, swapping which cards get which power cables, eliminating any PSU rail problem or cable problem.

iam1simpleguy · Oct 22, 2011

No don't have original windows ....
Im having asus p8p67 pro,Earlier bios was 1805 on which it was working before flash...then after flashed to 6970 I was unable to see any crossfire...tried one whole day doin this that ..then updated the bios to 2001 and still no success ..as mentioned before I reflashed back both cards to 6950 but still no crossfire....

iam1simpleguy · Oct 22, 2011

manofthem said:
What PSU are you running? You could try switching the pcie cables, swapping which cards get which power cables, eliminating any PSU rail problem or cable problem.

Cooler master pro 1000w ..and yes has already swapped cables

cadaveca · Oct 22, 2011

If you install each card on it's own in the board, with the other not in the system, do both work properly?

Have you cleared CMOS by moving the jumper and removing the battery?

iam1simpleguy · Oct 22, 2011

cadaveca said:
If you install each card on it's own in the board, with the other not in the system, do both work properly?

Have you cleared CMOS by moving the jumper and removing the battery?

Yes both of them worked properly..
I have not clear CMOS ,moreover when I updated latest bios it seems it ,new bios cleared everything as all my over clocking profiles that are saved are gone and all other settings resetted to default

cadaveca · Oct 22, 2011

To lose OC profiles, is a good thing, as there are settings that are not open to the end user that may have changed. You never want to use profiles from old BIOS.

It is possible the CPU is not switching over the PCIe link in CPU to x8/x8 from x16. If you look in GPU-Z, does it say the working card is @ x8 link, or x16?

iam1simpleguy · Oct 23, 2011

In gpuz -In bus interface it says pci-e 2.0x16@16 2.0

Now what??what does it mean..

iam1simpleguy · Oct 23, 2011

Another update I installed fresh windows..installed 11.9 and no success..same as usual no crossfire

DigitalUK · Oct 23, 2011

looks like theres afew with crossfire problems with this board after a quick google search.

try resetting the bios but before you do remove card from second slot then reset, apparently bios reset doesnt work with card in second slot.
if that doesnt work check the second slot only with card just in slot 2 "to make sure slot is not faulty"

iam1simpleguy · Oct 23, 2011

Well I already tried that single gnu in 2nd slot and it didnt boot...I think it meant to bootmfrom primary card I'm not sure though

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successfully flashed 6950's but no crossfire..HELP

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