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Okay The Real Question in here!

so if some have none and others have loads, it possibly points to the way each system is set up surely ?
 
I did a fresh windows install and started with version 10.4 as 10.8 wasnt out, basically your saying I need to reinstall windows everytime I want to update my graphics drivers??

Really doesnt sound right, in terms of testing the PSU under load No I dont have the ability to do that, I used a power supply tester which means I have to disconnect the sockets from the board to test them, I dont have a voltage meter and I cant afford to buy one just to check one power supply.

If it was a power issue I would expect to see issues with my overclock and other devices in the system as I have experience no other power issues and I can rack up 100% load on CPU and graphics card with 0 errors or random shutdowns or crashes with particular drivers installed it does seem to be software, I only get problems when i try to change drivers if I stick with 10.4 the system is solid as a rock.

In which case, you can't rule out the PSU, because it's completely pointless testing the PSU when idle for anything other than "is it supplying ANY power?" As for a multimeter, they're actually quite cheap, you can get them for under £5.

It isn't wise to rule things out with out verifying them yourself. Have you tried running your PC at stock? Regardless of how stable you think it is? Just because your PC seems stable when overclocked, it doesn't mean the second GPU couldn't draw that bit more power than the PSU can cope with.

You won't have to reinstall windows each time a driver comes out, but also you shouldn't be using software such as driver sweeper as it can cause the problems you've been having, they were all good for windows XP, but they're now obsolete and can cause you a lot of problems.
 
I did a fresh windows install and started with version 10.4 as 10.8 wasnt out, basically your saying I need to reinstall windows everytime I want to update my graphics drivers??

You might need to use driver sweeper everytime though. You can't expect every driver release to work with every single combination of hardware. I am stuck on 10.5s at the moment because it would seem my hardware combo and 10.6/7/8s cause The Sims to crash. Everything else works fine and no one else have reported this problem. These things happen.

Don't bother with the 32bit route though, it is a waste of time.
 
What I am trying to say is if it is a power issue, the whole system would be unstable, it would not manifest itself as a single issue with a single driver change, my whole system would be unreliable to the point of uselessness, I have had power issues before when I first SLI'd my previous system it would start up and get into windows but the moment you put it into 3d clocks with full load on each card it would just power down.

Honestly I really really really dont think it is a power issue or my benchmarks wouldnt work, there would be stability issues with the whole system not a crash to desktop with a particular bit of software when using particular drivers, everything that loaded the system would cause a crash not just in a single specific combination.

What it comes down to is that while I cannot eliminate the power supply 100% there would be additional symptoms such as errors in prime95 testing, errors in memtest, voltage warnings from the graphics card monitoring software, warnings from the motherboard monitoring (abnormal beep codes and refusals to start up)

I have done a clean install of windows very recently put 10.4 on it as discussed and what I am saying is that I sucessfully completed upgrade to 10.8 and faced issues with crashes to desktop and visual anomolies (dim backlight on monitor) which I did not face with 10.4. I rolled back to 10.4 and everything runs fine and dandy, if it was a power issue it would not work with any drivers.
 
Honestly I find it pretty condescending when everyone blames the user rather than the software, its clear that there are issues with the drivers or there would not be so many people bitching about it everywhere, I am not a n00b to this I have been building systems since I was 14 years old (thats 16 years (showing my age I know) and I can troubleshoot my way through a problem.

Everytime I have an issue its only when I choose to change drivers, basically the added features and bug fixes are un-available to me and countless others because of some esoteric hardware configuration that we have that causes a problem with these graphics cards on certain systems with certain hardware configurations which no one can seem to identify or suggest which bit of hardware it is that causes the issue.

Personally I am thinking of trying 32bit windows again to see if its a 64bit issue which is what I think it could be, it does seem truly random though as some people have no issues and others have loads

It may be condescending, but unfortunately due to the amount of times it's been a terrible case of PEBKAC, it's the way you have to be. It doesn't help that people actively refuse to even think of the possibility of it being their problem as well.

I've lost count of the amount of times I've seen some one have loads of problems and it be their fault, but they won't accept it. This is personal experience too, where I've ended up fixing their problem for them.
 
Recenly moved to Nvidia so I don't really keep track of all things ATI driver related now.

Regarding the OP's issue, I don't believe this is ATI driver related more OS related.
 
Yeah well 10.4 works but BFBC2 is slow loading and there are some gains on performance on crossfire with certain games so it would be nice to be able to use them I just hope that 10.9 and 11.0 are going to improve the poor run I have had, it would be nice to get one updated driver release that works for me :)
 
If your having issues and are worried about losing money just selll one of your cards and use 1 hd5870 it's a horse in its own right so there's no need for crossfire and you won't lose as much money as you would selling both.

Have you tried driver sweeper?
 
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10.1 - worked but issues
10.2 - worked but issues
10.3 - BSOD
10.4 - stable and best drivers so far trouble free apart from known bugs
10.5 - cant install at all
10.6 - works but crash to desktop on games
10.7 - same as above
10.8 - BSOD, crash to desktop

All drivers show the "decrease in screen brightness" issue if I change from the driver I first installed the screen just goes dim and washed out

Must be something else. I ran 5870's in XF for two months and experienced not a single issue. Did exactly what it says on the tin. I only sold one because the performance was more than I needed and my money was sitting there getting old. Running one now and it still crushes every game out there in 1080p. Sell one and keep one.
 
Yeah well 10.4 works but BFBC2 is slow loading and there are some gains on performance on crossfire with certain games so it would be nice to be able to use them I just hope that 10.9 and 11.0 are going to improve the poor run I have had, it would be nice to get one updated driver release that works for me :)

Then just use 10.4 with 10.8 crossfire profiles for now.
 
Bear in mind some Nvidia users refuse to use certain newer drivers as well, so it isnt just ati.

I know you really want to update, and you *should* be able to without issue, but if 10.4 work, stick with those for now. The update dimming issue must be damn annoying though.

Is there any reason you actually need to update?
 
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