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MSI AMD 7970 now doesnt overclock as high.

Sega Mega Dave

Sega Mega Dave

Sega Mega Dave

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Hey,

I've always been able to run my 7970 with the sliders maxed with only a small increase in voltage and had zero issues.

Now for the past couple of months even with a bigger voltage increase its just not stable. Playing a game the screen will go black and then when it kicks back in the game is running at about15fps until I restart the computer.

Any ideas why this sudden change?

Thanks,
Dave
 
Have you changed drivers? A stable overclock with one driver version might not get a stable overclock with a newer or older driver set I believe.
 
seabiscuit said:
Have you changed drivers? A stable overclock with one driver version might not get a stable overclock with a newer or older driver set I believe.
Click to expand...

This, had some monster benches on my 7850 last summer, few driver releases later no longer reach those heights. Got a nice 23% OC for day to day use though.
 
Fairly sure most noticed a reduce in clock/raise in voltage around the release of 12.11, which was no big deal given the performance gains 12.11 offered.
 
As the gpu is used more (with the overclock), it will eventually degrade a little and can go to the point of not being able to clock it as far!
 
Most likely due to the large increases offered by the catalyst 12.11 drivers, regarding degradation, unlikely this early in the game unless he card was running extremely high temperatures on a regular basis.
 
Sega Mega Dave said:
Hey,

I've always been able to run my 7970 with the sliders maxed with only a small increase in voltage and had zero issues.

Now for the past couple of months even with a bigger voltage increase its just not stable. Playing a game the screen will go black and then when it kicks back in the game is running at about15fps until I restart the computer.

Any ideas why this sudden change?

Thanks,
Dave
Click to expand...

Could be temperature based. Reason for me saying this is due to my own experience.

Same card, stock cooler i used to require 1.181v to run 1200 core stable. Since putting an accelero on my card and getting drastically lower temps that same core speed now only requires 1.163v to be stable.
 
LtMatt said:
Could be temperature based. Reason for me saying this is due to my own experience.

Same card, stock cooler i used to require 1.181v to run 1200 core stable. Since putting an accelero on my card and getting drastically lower temps that same core speed now only requires 1.163v to be stable.
Click to expand...

I was wondering this, if temp actually made a difference to voltages.
 
Can't say I've noticed a drop in overclock speed with newer drivers, if anything it's got better.
 
Nope! :)

The 13.2 beta 7's produce really bad stability levels in Civ 5 for me, so much so that I have to revert my cards to 950 MHz instead of 1100 MHz.

Long and short of it is that, yes, drivers can make a difference.
 
Well

My card is running 1200/1630@1237vcore/1610vmem since i got it last Jun or something. Plus killer benchmarks 1250/1740 now and then.
When i upgraded to GHZ bios it cant run 1200/1630 due to vcore limit. And drivers do play massive role to
 
Anyway a little update.

I forgot about this thread but a little update.

I decided to roll back to Windows 7 from Windows 8.

Put in the same overclock and minor voltage tweak and stable again under all gaming conditions.

So it seems for me at least the AMD driver can't hold the same clock under Windows 8 as stable as it does under Windows 7.
 
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