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Is flashing to 6970 seriously a no-no?

post #1 of 60
Thread Starter 
I've had my 6950 for two weeks and flashed it on the first day.

I've read what seems like a million posts on this, and I guess I missed all the negative stuff about flashing to the 6970 bios when I decided to flash my msi card.

I've had no problems. I even had a fan control anomaly between ccc and afterburner where I played shift for ~15 minutes with NO FAN. I exited the game and the GPU was over 100c. It never even hiccuped.

So, should I flash back to the 6950 bios, or are some people simply freaking out?

How long has the 6950 been out? Is there no one who has run the 6970 bios for any real amount of time?
    
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post #2 of 60
The problem is that people who flash to a 6970 think that it's actually a 6970, and then try to OC it as such.
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post #3 of 60
Many people say it'll mess up your card in the future but many say otherwise. it hasnt been out long enough to prove that itll mess the card up in the future. Just to be safe I unlocked my shaders and just OC'ed it manully.

EDIT: many have flashed their cards and never had issues but some have and failed. I guess it depends on if you know what your doing too. There is 2 bios on the card so even if you fail you can still flash it back.
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post #4 of 60
Quote:
Originally Posted by ____ View Post
The problem is that people who flash to a 6970 think that it's actually a 6970, and then try to OC it as such.
I have to believe this probably the potential problem. But just to be on the safe side, I just unlocked the shaders with the 6950 BIOS itself. The memory voltage and timing did not change. I then OCed my card to my liking.
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post #5 of 60
Thread Starter 
What's the difference in memory voltage from the ref 6950 to the ref 6970?
    
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post #6 of 60
Quote:
Originally Posted by PARTON View Post
What's the difference in memory voltage from the ref 6950 to the ref 6970?
0.1v
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post #7 of 60
The ram on the 6970 is binned and are rated higher than the one for the 6950, as such, the timings and voltages are different,

if u want to unlock, unlock shaders only and use a program to overclock to 6970 speeds or w/e

better to be safe than sorry.
    
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post #8 of 60
Thread Starter 
How is +0.1v going to damage a chip?
    
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post #9 of 60
I flashed both of my 5850s a couple months after I got them over a year ago. My first card worked fine and I had no problems. When I flashed my second one (same card) it killed it. I just restored the original bios and sent it back to sapphire and I got a replacement. When I need it, I keep mine at 890/1190 which is a major overclock. Like I said, it was over a year ago and they are still going strong. I would do what F-U-B-A-R and I did and just flash it with an unlocked bios and do the clocks manually. That way when you don't need the horsepower you can set it back to stock.
post #10 of 60
Quote:
Originally Posted by PARTON View Post
How is +0.1v going to damage a chip?
People claim the timings are different but there is 0 evidence supporting that.

This unproven rumor has been going on ever since the TechPowerUp article came out. There were cases on their forums of around 17 or so cards failing down the line a few months later. Of course, without a proper controlled experiment you can't tell if it was due to the 6970 bios flash or whether the card itself was just faulty.

No one really knows and no one really cares to find out.
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