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How do I disable the "boost mode" on my TFIII 7950?

post #1 of 11
Thread Starter 
I don't need the boost because my card is already heavily overclocked and overvolted, but I have a suspicion that the boost mode is messing with GPU stability (I often see the GPU spike from 0-99% usage when on my desktop, and it oscillates between the two percentages).

Is there any easy way to disable this? I'm guessing a BIOS flash is required as a worse case scenario.
post #2 of 11
once you overclock past the 960 mhz boost clocks the GPU works at the clocks you set. you should have maxed out power control to +20%. that will make sure clocks don't fluctuate.
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post #3 of 11
No fluctuation on mine.
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post #4 of 11
@Snuckie7

How well does your MSI R7950 TF3 keep cool in the Corsair 550D? Does the case do good job containing the fan noise of that card? Thanks!
post #5 of 11
I own two MSI TF3 7950's and I have to say that the fans are really loud on this thing when you turn them up. The cooler works pretty good for a stock cooling solution but once you get the fan speed up to about 75%+ it gets loud. I had mine before I WC 'd it pegged at 95% because I'm running it 24/7 boincing. The core stays at a nice temp but the stock HSF doesn't have any cooling or heatsinks on the VRM's so just watch those temps when air cooling in a smaller case.
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post #6 of 11
Quote:
Originally Posted by skyhigh2004 View Post

I own two MSI TF3 7950's and I have to say that the fans are really loud on this thing when you turn them up. The cooler works pretty good for a stock cooling solution but once you get the fan speed up to about 75%+ it gets loud. I had mine before I WC 'd it pegged at 95% because I'm running it 24/7 boincing. The core stays at a nice temp but the stock HSF doesn't have any cooling or heatsinks on the VRM's so just watch those temps when air cooling in a smaller case.
The front plate, under the core heatsink, gets nice and toasty, which means its pulling heat from the VRMs.

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post #7 of 11
As raghu said set power target to +20% and it should be fine.
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post #8 of 11
Thread Starter 
Quote:
Originally Posted by bigsnyder View Post

@Snuckie7

How well does your MSI R7950 TF3 keep cool in the Corsair 550D? Does the case do good job containing the fan noise of that card? Thanks!

Temps are decent, but not amazing. My card idles around 30 and hits 70 under load.


@Everyone else, my power target is already at 20% but I still get various throttling and GPU usage oscillations. I used MSI AB to overclock so that may be a problem.
post #9 of 11
Thanks for the info. Those temps seems to be right in line with most other setups I have seen.
post #10 of 11
Quote:
Originally Posted by Xylene View Post

Quote:
Originally Posted by skyhigh2004 View Post

I own two MSI TF3 7950's and I have to say that the fans are really loud on this thing when you turn them up. The cooler works pretty good for a stock cooling solution but once you get the fan speed up to about 75%+ it gets loud. I had mine before I WC 'd it pegged at 95% because I'm running it 24/7 boincing. The core stays at a nice temp but the stock HSF doesn't have any cooling or heatsinks on the VRM's so just watch those temps when air cooling in a smaller case.
The front plate, under the core heatsink, gets nice and toasty, which means its pulling heat from the VRMs.


I just meant there is nothing dedicated to cooling the VRMs, and the main HSF doesn't touch the VRMs at all. The fans mixed with the metal plate gives them some cooling but not much.
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Sapphire Dual-X 7950 w/7970 PCB Sapphire Dual-X 7950 w/7970 PCB G.Skill Ripjaws Z 2100mhz Samsung 840 SSD 
Hard DriveOptical DriveCoolingOS
OCZ Agility 3 SSD Samsung 22x DVD-RW Custom Liquid Cooling Windows 8 Pro 
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CoolingOSMonitorMonitor
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MonitorKeyboardPowerCase
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