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How can I reset my ATI graphics card's overclock settings before the computer st

Tags:
  • Radeon
  • Overclocking
  • Computer
  • Graphics Cards
  • ATI
  • Graphics
Last response: in Graphics Cards
July 13, 2011 8:38:22 PM

Hello,

I just tried overclocking my ATI 4850 through Catalyst Control Center, and I went a little too high which caused the screen to get a bunch of weird artifacts on all over and then my computer freezes. This happens even on the desktop, not just in game.

So now when I restart my computer it does the same thing(gets artifacts and freezes) before I can get to CCC and change the OC back to normal.

Is there a way I can fix this without reformatting Windows? I booted into safe mode and tried changing the settings in CCC, but when I try to run it I get an error saying the GPU drivers aren't installed. Windows doesn't let me uninstall programs when in safe mode so I can't uninstall CCC. I heard you are able to disable the OC through MSI Afterburner, so I installed that while in safe mode but it won't boot and I'm guessing it's because I'm in safe mode because it gives me some weird driver error.

More about : reset ati graphics card overclock settings computer

July 13, 2011 9:13:21 PM

krej said:
Hello,

I just tried overclocking my ATI 4850 through Catalyst Control Center, and I went a little too high which caused the screen to get a bunch of weird artifacts on all over and then my computer freezes. This happens even on the desktop, not just in game.

So now when I restart my computer it does the same thing(gets artifacts and freezes) before I can get to CCC and change the OC back to normal.

Is there a way I can fix this without reformatting Windows? I booted into safe mode and tried changing the settings in CCC, but when I try to run it I get an error saying the GPU drivers aren't installed. Windows doesn't let me uninstall programs when in safe mode so I can't uninstall CCC. I heard you are able to disable the OC through MSI Afterburner, so I installed that while in safe mode but it won't boot and I'm guessing it's because I'm in safe mode because it gives me some weird driver error.

I have never used Catalyst Control Center, so take my reply with a grain of salt.

Either a) CCC flashes the graphic card bios, or in some other way changes a persistent storage on the card, such that the card itself will force itself to perform beyond what it is capable of, or b) CCC, when running, will force the card to perform beyond what it is capable.

If b), then all you need to do is ensure CCC does not run when Windows starts (Windows safe mode?). You could then try to remove any configuration for CCC (possibly by uninstalling it, and making sure to purge any registry entries CCC uses, or configuration files it uses), so you have a fresh CCC which remembers nothing about you wanting to overclock your card.

If a), you need to flash the bios. I have no idea how you do that (but others on these forums do).
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July 13, 2011 9:33:44 PM

Thanks. I'm pretty sure CCC works by changing the clocks while it is running. I was able to end the CCC process before the OC kicked in, then uninstall it and reinstall it just fine and now my computer is good.

However, I just tried overclocking again but with a much smaller jump, I only changed the core clock speed to 630 from 625, and the same thing happened. I got different kinds of artifacts, but it still made my computer unusable requiring me to uninstall and reinstall CCC to wipe it's settings.

Is there a reason why I'm unable to OC my card at all? I had my fan cranked up a lot so the card was nice and cool when I increased the speed just now, but it still ended up killing my computer. Everything else on the GPU is all at stock speeds and whatnot.
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Related resources
a c 100 K Overclocking
a c 124 U Graphics card
July 13, 2011 10:06:35 PM

What card is it? It might just hate you.

But yeah, anyway, try using MSI Afterburner and make sure you do NOT select the option to load the OC at startup. Then just adjust clocks and test it out. Ideally you will also have voltage control, so if it's crashing with just 5mhz more you could try adding a little voltage. Otherwise, ignore core clock and see what you can push out of the memory clock.
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a b K Overclocking
a c 236 U Graphics card
July 13, 2011 10:26:32 PM

Since you are having the problem at start up, the only way I know to fix this, which is fairly easy to resolve, is to boot to safe mode.

Once in safe mode, attempt to uninstall the CCC. It might not let you, in that case, go to the device manager, and uninstall the drivers for your video card. When you reboot, you can remove the CCC and reinstall the drivers.
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July 13, 2011 10:37:31 PM

wolfram23 said:
What card is it? It might just hate you.

But yeah, anyway, try using MSI Afterburner and make sure you do NOT select the option to load the OC at startup. Then just adjust clocks and test it out. Ideally you will also have voltage control, so if it's crashing with just 5mhz more you could try adding a little voltage. Otherwise, ignore core clock and see what you can push out of the memory clock.



Thanks, I'll try OCing with MSI Afterburner. The card is an ATI 4850, and it might just hate me because I've had problems with it overheating and artifacting while playing games before.

Also is it ok to just drop the memory clock to as low as it can get right away? I haven't touched it yet, but I'm overclocking to help mine bitcoins and people say that the memory clock isn't really used so it's best to lower it to help lower heat and whatnot. So is it cool to just lower that all the way, or should I slowly decrease it little by little?
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a c 100 K Overclocking
a c 124 U Graphics card
July 13, 2011 10:50:05 PM

I don't know what mining bitcoins refers to in the least...

Technically you could probably lower the memory speed a couple hundred mhz no problem but I doubt that will really change anything. I guess you could test it to see if less mem clock does or does not affect this bitcoin thing, and *possibly* you can get more core mhz out of it with lower mem.
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July 13, 2011 11:54:23 PM

Well no matter what I do, even with MSI Afterburner, my graphics card just freaks out and crashes, so I'm guessing it just hates me and I think I've given up on trying to overclock it. Thanks for your help though!

Also, as to what bitcoins are, I'm not going to get too in detail(partially because I don't know exactly how they work) but they are basically an alternate currency that is p2p and I believe based on mathematical formulas. You can use your graphics card to 'mine' them which I believe is helping solve the problems in order to earn the money/bitcoins. So what I'm trying to do is mine enough bitcoins in order to buy a new graphics card since my current one has been giving me so many problems.
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a b K Overclocking
a c 236 U Graphics card
July 13, 2011 11:58:32 PM

I gave you a way to start over from scratch. Go to safe mode, uninstall the drivers, then you can reinstall them at stock settings without issue.

To go to safe mode, press F8 over and over after post and before windows starts loading.
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April 1, 2014 1:25:13 PM

krej said:
Thanks. I'm pretty sure CCC works by changing the clocks while it is running. I was able to end the CCC process before the OC kicked in, then uninstall it and reinstall it just fine and now my computer is good.

However, I just tried overclocking again but with a much smaller jump, I only changed the core clock speed to 630 from 625, and the same thing happened. I got different kinds of artifacts, but it still made my computer unusable requiring me to uninstall and reinstall CCC to wipe it's settings.

Is there a reason why I'm unable to OC my card at all? I had my fan cranked up a lot so the card was nice and cool when I increased the speed just now, but it still ended up killing my computer. Everything else on the GPU is all at stock speeds and whatnot.


Iv got the same problem but cannot uninstall the CCC before the oc kicks in. How can I get my PC working? So annoyed
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June 6, 2014 10:47:16 AM

I have the same problem and I ended up unintelligible catalyst by deleting it's driver files in safe mode. Yet when I boot up in normal mode and unintelligible it completely then re install the screen blacks out again as soon as the drivers get installed. All I had done was slide the over clocking slider a bit more and now I get a black screen when my drivers are loaded on startup. I run a r9 290. Is it possible it is loading up my old settings upon re installation and if so how do I delete it?
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August 3, 2014 7:45:28 PM

Destromm said:
I have the same problem and I ended up unintelligible catalyst by deleting it's driver files in safe mode. Yet when I boot up in normal mode and unintelligible it completely then re install the screen blacks out again as soon as the drivers get installed. All I had done was slide the over clocking slider a bit more and now I get a black screen when my drivers are loaded on startup. I run a r9 290. Is it possible it is loading up my old settings upon re installation and if so how do I delete it?


Hey did anyone find an answer to destrom?? I am having the same exact problem with this video card, the r9 290


[Edit] just for the information I had to reformat again and install the drivers again from scratch, this solved the black screen... somehow the catalyst was still remembering the old oc settings, sucha a damn pain I almost thought I fryed my card
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December 22, 2014 1:21:30 PM

R9 290 - same problem. No solutions.
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February 13, 2015 9:07:06 AM

Did anyone ever find a solution for this that doesn't involve formatting?

[Edit] If you have this problem install another GPU, use one to support one screen, and the messed up one to support another, then go in CCC and change the settings for the messed up GPU.
You'll need 2 monitors for this

1. Turn your power supply off and install both graphics card with power
2. Plug one of the monitors into the secondary GPU (The one you didn't mess with)
3. Start the computer, let it boot and launch catalyst control center
4. plug the second monitor into your primary GPU (The one you messed with)
5. go into the overdrive settings and they should be restored to factory, if not, restore them
6. shut down and uninstall the secondary card, test that your problem has gone away before closing everything up

Hope this helps, it worked for me with my 290x and an old 6770
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a b K Overclocking
a c 316 U Graphics card
February 13, 2015 11:56:46 AM

There is several ways out of this depending on hardware:

1: Hold F8 when booting but select the system restore option/s rather than safe mode, the 'start last known good' is a decent place to begin with. Remember, you'll loose any software that was installed after the restore point date.

2: Use another graphics card from another maker, any card will do as long as your system supports it but use an Nvidia card if you're having problems with an AMD card and vice versa, that way your system will not load any drivers other than the Windows default VGA drivers, so you'll be able to boot normally to uninstall the current video drivers.

3: Use the onboard graphics if your hardware has them, most motherboards will switch automatically to onboard if the monitor is connected to the motherboard video output although you MAY need to remove the graphics card.

4: Download and extract Display Driver Uninstaller (DDU) to a suitable flash drive, with this drive attached, start in Safe Mode and run the uninstaller.


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May 29, 2015 6:26:40 AM

For me, I have never been interested to overclock the gpu, but yesterday while I was playing Splinter Cell Blacklist, the screen just froze and restarted after the blue screen. When the system restarted, the display was artifacting (sorry I don't know how to put it) and it doesn't even allow me to go to normal Windows mode to do anything! Today I read that artifacting may result from overclocking but I never overclocked my Sapphire HD 7870 gpu. Could it have been turned on automatically? How do I go ahead? Will formatting help? I can format my pc if I have to!
Please help!
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June 13, 2015 1:25:03 PM

C:\Users\<you>\AppData\Local\ATI\ACE\Profiles.xml

that looks promising, try editing that. Probabbly not cleaned on uninstall either.
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October 26, 2015 6:34:13 AM

Yeap! go there,
open profiles.xml with notepad (important)
search
1) CoreClockTarget, go to the want_0 and the value change it to 0
2) CoreClockTarget, go to the want_1 and the value change it to 0
3) PowerControl, got to the want and the value, change it to 0
5) MemoryClockTarget and change the Want_0, value= to your DEFAULT memoryclock speed x10
5)5) MemoryClockTarget and change the Want_1, value= to your DEFAULT memoryclock speed x100!

If your default memory speed of your card is 1250 then the want_0 value should be 12500
and the want_1 value to 125000

However i am also pretty sure you can delete it and ati catalyst will make a default one but you will miss any settings you custom made for monitors etc. Or just rename the profiles.xml to old-profiles.xml and wait to see what happens if you run catalyst
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