Display Driver atikmdag / nvlddmkm Stopped Responding

atikmdag stopped responding screenshot

Atikmdag / nvlddmkm fix update

I would just like to say thanks to all those who have posted their fixes in the comments section below!

3.12.2008 - More and more solutions have been posted below
14.3.2008 - More solutions have been submitted below
24.12.2007 - Seems some are having success using a variety of methods see the comments below
1.11.2007 - If you have found a solution please leave a comment below - click here

Is the atikmdag / nvlddmkm caused by Hardware or Software? ( polls)

Purpose of this article

This error has been a constant problem on my new PC for the last 8 months. This particular error exists on both ATI and Nvidia cards and on a whole range of different PC builds.

The error you receive on the cards is different because obviously the driver that stops has a different name, but the symptom is the same, the screen will go blank and then sometimes the game/application will recover or it may crash. A small message will appear on the bottom right hand side of your screen if you are using Vista.

ATI Cards: Atikmdag has stopped responding and has successfully recovered

Nvidia Cards: nvlddmkm has stopped responding and has successfully recovered

This page contains all the information I have collected and possible fixes and puts them in one place.

This page will be constantly updated until a 100% Fix is found - the fixes that are listed work for some but not for others - so you might have to experiment a little until a solution is found

I will point Nvidia users to the best solutions for them and then list possible fixes for ATI users - I am a ATI card user myself and have found a few fixes which increase the stability of my system - this has reduced the frequency of the error but has not eliminated it entirely.

Best Forum Discussions about the atikmdag / nvlddmkm error

ATI atikmdag Discussions

Nvidia nvlddmkm Discussions

Fix 1 - Vista Users - ATI and Nvidia Users

Windows Hot fixes

Some users have solved the problem by actually uninstalling a windows hot fix, the "KB952287" patch. (Vista Users)

Matthew Utah

Posted at 6:14pm on August 25th, 2008

I had this problem and found it quite annoying. Due to other circumstances, I reinstalled Windows Vista, and found that I did not have this problem before installing updates. In fact, installing update KB952287 caused this problem to start, and when I installed this update, it went away.

I looked up the update, and it deals with some very specific SQL server issues that I will likely never deal with, so it will stay gone on my machine.

Karen Texas

Thank you Matthew from Utah!
Your solution worked for me.

I un-installed "update KB952287" and the problem is gone.

I also use the AMD 780G chip set.

Possible Helpful Patches

KB938194 - An update is available that improves the compatibility and reliability of Windows Vista
KB938979 - An update is available that improves the performance and reliability of Windows Vista

You may have these fixes installed already, write them down then check if you have them installed.

To check if you have them : start menu / control panel / system and maintenance / Windows updates / View update history

Fix 2 - Only using one stick of Ram - All Users

According to several posts I have read over the internet a sure-fire way to rid yourself of this problem is to only have one stick of ram in your PC. I personally have not tried this method as I only have 2gb of ram, reducing it to 1gb would not be enough for me as I am using Vista and have to run several applications.

quote from ocforums:

'Drivers, software, vista driver structure and sub-level timings, etc...simplest way to get rid of the problem is to run one single RAM stick...I kid u not. 1 ram stick and u will see the issue vanish almost instantly!'

If you are so sick of this problem and can reduce your PC to only one stick of ram then give it a go.

*Warning* Only remove ram if you know what you are doing - you can quite easily damage your components if you are not use to repairing computers.

Fix 3 - Cleaning the Registry

Some people report cleaning the registry has solved the problem for them.

Registry Cleaners with Free Software Trials Here

Fix 4 - ATI users XP and Vista - Total Fix of the atikmdag error on my System

*Warning* You do all of this at your own risk - I am not responsible if anything goes wrong

Update 30.9.2007: I managed to totally remove my atikmdag error now following the information below

My PC Build:

P5W DH Deluxe
Intel Core 2 Duo 6300
2gb Geil Ram 800 mhz
Radeon HIS IceQ3 Turbo 1950 Pro

Tools you need:

Effectiveness of Fix

Battlefield 2 (before: error every 45mins - After - Never)
Company of Heroes (before: error every 3 - 4 min's - After Never)
Neverwinter Nights 2 (before: error every 3 - 5 min's - After Never)

Stage 1

Disable UAC - Vista Users (see below) - reboot
Disable any Antivirus software
Remove Current drivers
Reboot into safe mode - to do this you wait until after the bios screen has disappeared (bios is the start-up screen) then tap the F8 key until the windows booting options come up - select safe mode
Run Driver cleaner - select the following options below and then click start
Empty your recycle bin
Reboot into normal mode
Install Catalyst 7.9
Turn Antivirus and UAC back on
Reboot your PC

Stage 2

This stage is what removed the error for me. My ATI card is a HIS Ice3q 1950 Pro which is an overclocked video card. Doing some research I found that it wasn't very stable running at the speeds it is set at, so I made one small change to the VPU clock speed. Obviously I don't know what card you have and weather this will make any difference for you, but I can say that before most games had this error every 5 minutes of game play and after I haven't had the error since.

On the ATI tool main menu you will have your graphics card clock speeds. My core speed was 621 I reduced this to 600 and pressed set clock - the tool set it to 594 - I saved the profile and that was it - that little adjustment removed the error. Your graphics card will run at different speeds to mine, but it might be worth dropping the core speed by 20 points to test if this works - also make sure you go to stage 3 as well.

Stage 3

In ATI tool select the setting button - bottom right of the main panel
At the top - open the menu and scroll down and choose 'Fan control'
Tick the box 'Override Fan Speeds'

Select dynamic based on GPU temperature and set it up like the screenshot above - save this profile so you can load it the next time you need it - then press apply - *Warning* - Some say that fix the percentage at 100% and that's it, but I wouldn't advise that as you may wear out your fan much faster than normal.

I'm hoping the above has also fixed your error - if it has or hasn't leave a comment at the bottom of this page.

Fix 5- Various methods that work for some - Vista Users

Reading through all the hundreds of posts I took down notes and kept a record of what worked for some people, some responded saying that it worked, some say it made no difference. So give some of these a try and see if it makes a change.

Turning off Aero: Start / control panel / under appearance and personalization / change the color scheme / Select Windows classic theme and apply.

Turning off UAC (User Account Control) - *Warning* UAC is designed to help keep your PC more secure - try this if nothing else works, turn it back on if it doesn't help.

Type msconfig into the search bar (pic below) - run the program

Select tools and scroll down to disable UAC and click launch (see pic) - reboot your PC

system config

Fix 6 - More Possible solutions to the atikmdag / nvlddmkm error

This is basically as far as it goes for now, but these are few other fixes that you could try:

Fixes from comments below:

Robb from Canada:

Had the same problem until I set my bios setting to auto! Now everything is good to go!

Steve from Australia:

If you are using EXTENDED DESKTOP WITH DUAL MONITORS then disable it and revert back to using one monitor.Ta Da! no more crashes!

Greg from UK:

I have got the system stable by uninstalling the ati driver and using the standard vista vga driver, aero and window transparency don't work, nor do any of the screen savers but no more BSOD..

Possible fix - worth a try - Vista Users
Another possible fix for Vista users from the Hard Forum

Still Isn't Fixed? - if you still have problems or can offer a solution to the atikmdag or nvlddmkm error please post a comment below - Thanks!

Comments to date: 108. Page 1 of 2. Article Rating:

trey texas	Posted at 11:09am on January 4th, 2009
woooooooooo thank u guys so much!!! I turned off aero and it worked like a charm now I can watch naruto with no problems good thing too cause I bought this hard drive from ebay and I thought I was getting ripped off lol! Anyway thank you guys soooo much.
Toni Finland	Posted at 8:44pm on January 1st, 2009
KB953186 did the trick on vista.
James UK	Posted at 11:03pm on December 25th, 2008
Hi, I am running vista32 with an ati 4870 card, Catalyst 8.12. The driver only seems to crash when using two screens with different inputs. For example: Screen 1 - DVI Screen 2 - HDMI or d-sub. Using both on a DVI connection seems to fix the problem. Of course, some screens do not have a DVI port so still waiting on ATI to fix it. Hope this helps.
Jack UK	Posted at 7:51pm on December 23rd, 2008
This is bad, I have tried all fixes without success. Including buying additional hardware. I have removed 2/4 1GB PC8500 memory modules and it seems to be a bit more stable? I'm using a 780i chip set.
Eduardo Dias	Posted at 3:57am on December 21st, 2008
guys I finally found my fix if you have an asus mobo try setting your dram frequency to match your ram speed and check your ram manufacturer for the appropriate dram voltage and set the according to recommendations please read your mobo manual to see how to do this
fritz137 Georgia	Posted at 12:33pm on December 5th, 2008
I was able to fix this problem by disabling Aero on Vista. What a tragedy that neither Microsoft nor ATI did anything to help solve this problem for thousands of their customers.
grbenny Oregon	Posted at 10:44pm on December 2nd, 2008
I have been having this same problem while using a Samsung external monitor with my Toshiba laptop. There are a lot of solutions here, so I went with the simplest one - reduce the colour resolution on the "extended desktop" monitor. I usually use the Samsung as the primary monitor and extend the desktop to the laptop. I reduced the colour to 16 bit and also tried it at 8 bit and have not had a single ATIKMDAG error while running that way. I can live with that but it sure seems like a problem that should not exist! Thanks!
jhkim Korea	Posted at 6:39pm on November 20th, 2008
The Matthews solution also worked for me. I had experienced BSOD 3~4 times a week but now the problem almost gone. After installed the KB952287 update, I have experienced BSOD only 1 time for the last two weeks Thank you Matthew. Windows Vista Home Premium (32bit) CPU: Intel Quad Core Q6600 RAM: 4096MB GRAPHIC: ATI Radeon HD4850 512MB MOTHERBOARD: Asus P5Q-E
Im not a genius Satu Mare	Posted at 5:38pm on November 19th, 2008
I THINK I FOUND THE PROBLEM!! Guys,you wont f**ing believe me. I have the same problem you have,that error with your display driver has stopped working when I want to play half life2 or any game related to it. I was just sick about this error,after reading a bunch of comments I thought I should try to resolve the problem........so I right clicked my hl2 short cut and went to properties then I wrote at the target after the "blablabla" -config -atikmdag When I entered in it I jumped, walk fast and the error was gone ,it didn't showed up, I don't know if it truly works but it didn't appeared any more,so you go to your game short cut then right click on it>>>>>properties then you look for the target after "D:half-life 2 episode twohl2.exe" you put -config - atikmdag hope it works! Update* Guys,nvm it only worked for about 20 minutes -.-,damn it
Wim Verstraeten Lovenjoel	Posted at 8:15am on November 15th, 2008
After 2 years of crashes I lowered the Memory Bus of my MSI8800GTX with +- 50Mhz and everything works perfect now. I use NVidia NTune on VISTA 32.
Henry Innis Australia, Sydney	Posted at 11:32am on November 5th, 2008
Setting up a class action lawsuit against these people (Nvidia, Microsoft Ubisoft ((Ubisoft corrupted my files leading to this problem on my comp))). Email me henryinnis at Yahoo or visit freewebs dot com / SueNvidiaUbisoftMicrosoft
Randy Canada	Posted at 1:55am on November 4th, 2008
After fresh format of Windows vista and latest nvidia drivers, the problem totally disappeared. But make sure you disable automatic updates, cause one of those updates brings back the dreaded error. (nvidmkm) Try it, you'll see
David London	Posted at 4:16pm on October 29th, 2008
I would give this a 5, however there is one major problem. I try downloading the file updates but when it comes to installing the, they both say they do not apply to my system...despite the fact I know I am 32bit. Below are my specs System Info Operating System: Windows Vista™ Home Premium System Manufacturer: TOSHIBA System Model: * BIOS: Ver 1.00PARTTBL Processor: Intel(R) Core(TM)2 Duo CPU T7300 @ 2.00GHz (2 CPUs), ~2.0GHz Memory: 2046MB RAM Page File: 1624MB used, 2703MB available DirectX Version: DirectX 10 DxDiag Version: 6.00.6001.18000 32bit Unicode
jc bacoor, philippines	Posted at 1:55am on October 26th, 2008
I think they are correct, deleting KB952287 kinda solved my problem. I never crashes now. And then the next morning, Windows Update tries to install that fix again, i just hide it so it wont install ever again! lol I have ATI Radeon 2600 PRO Vista 32 bit 2Gb Ram (single stick) Intel Core Duo 3Ghz ps, when I have XP, I have the same problem, I just thought that switching to Vista might solve it, but i was wrong.. hahah
Rafael Brazil	Posted at 11:15pm on October 21st, 2008
The problem of my pc was not in it, but an incompatibility between the RAM and motherboard, where attendance has not changed the problem more check with the manufacturer to submit compatible
Lisa Wyoming, USA	Posted at 10:26pm on October 20th, 2008
The one that worked for me was switching the theme to plain old Windows Classic. I didn't even have to reboot. Thank you, thank you, thank you for the info!!!!
Darcio South Africa	Posted at 4:26pm on October 15th, 2008
I need some help on my hp laptop, 18 ghz amx athlon x2 dual core, hav 1gb mem, nvidia graphics, when I watch movies after 20 mins then I get the nvlddmkm error need some help out there...
Karen Texas	Posted at 4:58am on September 29th, 2008
Thank you Matthew from Utah! Your solution worked for me. I un-installed "update KB952287" and the problem is gone. I also use the AMD 780G chip set.
Bednar Poland	Posted at 6:36pm on September 14th, 2008
I have just fixed the problem. All I had to do was to disable UAC. Now everything runs error free :-)
ricky calgary	Posted at 4:07am on September 9th, 2008
its not just a vista problem, it also occurs on the XP side of my computer. What I will say is that the problem appears to be chronic in my case, and that it used to crash once and awhile, but now it happens every time I open a game up about 2 minutes in.
wiggle tiggle wiggl taggle	Posted at 12:43pm on September 3rd, 2008
I play wow and every time I loaded it up I would get the message, I use nvidia by the way. I went through a couple of months trying to figure out what's going on I am no pc expert at all, nothing helped so I heard someone say about forceware so I looked it up I had version 163.69, I looked up my graphics card on the nvidia site and I ended up downloading 175.19, been playing for a while and no message. i hope this helps, I'm very tired and frustrated by it. I also did that registry thingy, and I have 172 errors, /train
Andrew England	Posted at 5:06pm on September 2nd, 2008
MY problem is that i have had nvlddmkm has stopped responding and has successfully recovered since I first played Lara Croft-Basically the first game I ran to test out this computer. I have had this computer nearly 2 weeks and it is good. However this one problem is causing massive upset. I cannot use Photoshop without pot luck crashes, I cannot play any games on high settings-or low for that matter very well- without this crash happening and then the result going to a blue screen. I have downloaded the windows update from fix 1, but it will not let me install it! It says it is not the right one for my system-but I chose the vista 64 one and I do not have the updater already in my update history. Please help! :(
Andrew England-	Posted at 4:08pm on August 31st, 2008
I have the nvlddmkm driver error, it occurs on the desktop and after use of any games-Lord of The Rings Online has to be played on the medium graphics setting, whereas the computer should enable it to run in ultra high with at least 40 FPS. I have an Nvidia 8800 GT and Vista 64 Bit Home Premium. However upon downloading the widnows updates suggested in Fix 1, I run either of them-Vista 64 bit one and the 32 bit one- and they BOTH say that This update does not apply to your system. Clearly it does, i looked in my installed updates and it is NOT there! Does anybody know how to fix this please? i have had this computer for less than a month and it has cost over 1 Grand and unfortunately this problem is causing havoc with computer usage and normal desktop use.
Matthew Utah	Posted at 6:14pm on August 25th, 2008
I had this problem and found it quite annoying. Due to other circumstances, I reinstalled Windows Vista, and found that I did not have this problem before installing updates. In fact, installing update KB952287 caused this problem to start, and when I installed this update, it went away. I looked up the update, and it deals with some very specific SQL server issues that I will likely never deal with, so it will stay gone on my machine. Specs: Vista Home Premium x64, Phenom 9600, 4GB RAM, ATI HD3870, AMD 780G chipset with SB700.
Andreas Germany	Posted at 11:30am on August 12th, 2008
I had the same Problem in Lord of the rings online. Outside it was ok but wehn i went into Buildings the System came up with an Atikmdag Error. I turned off the "Stencil Shadows" in Graphic menue. Since there the game runs very well. :)
Eduardo Dias Portugal	Posted at 9:07pm on August 10th, 2008
i have found a possible solution .for realtek users . i have this problem day 1 since i go this computer i searched everywhere for help and nothing helped . until i a friend suggested that i installed alll realtek drivers and disabled the onboard soundcard on my bios and guess what no more crashes at all :D My system : Processor:Intel(R) Core(TM)2 Quad CPU Q6600 @ 3.0GHz Memory: 4 GB RAM DDR2 @800mhz Hard Drive:750 GB SATA2 Video Card:2x ATI Radeon HD 3870 512mb Monitor:Asus VW202SR Sound Card:Realtek High Definition Audio Headphones:AudioFX Pro 5+1 by BenHeck Operating System:Windows Vista™ Ultimate 64 bits Motherboard:Asus P5KR Diver version 8.7
Jim Wisconsin	Posted at 4:58pm on July 25th, 2008
New Dell 420 XPS Intel E8500 Core™2 Duo ATI Radeon HD3870 4 Gigs of Ram via 4 1gig sticks Problem from Day 1. Shuffled RAM, Reduced RAM, Replaced Motherboard and Radeon card, updated motherboard BIOS and ATI drivers, installed ATI Tools and set fan speed – nothing fixed it until… I discovered a bad battery on the UPS sending flaky power to the system. Replaced the UPS and all seems good. ATI’s Knowledge Base list “Insufficient Power” first as possible fixes but I assumed that meant my computer’s power supply – not the device supplying the power.
ob2kenob oz	Posted at 2:26pm on July 25th, 2008
I have not tried this yet and judging by how few pots they were in the forums where i found this, it might notbe widely known yet but the people who have tried it are reporting great success: "I have the solution for my problem. I strongly suggest you post this to anyone else having this problem! (PS I am using 7.5 catalyst) I found that if you go into the system configuration utility (Start menu then type "system configuration" in the search bar) and then choose the boot tab and then to advanced options. There you will see at the top two boxes that you can check one is processor and the other is memory. If you check both of these and choose one processor and then the max amount of memory that is on your system. Hit apply and ok. Restart your system and it should run quickly in 2d and 3d works! Yay!" Will try them myself tomorrow. fingers crossed!
Mike J Arizona	Posted at 4:50am on July 18th, 2008
Thanks for compiling all this info. I have fought this issue for months now. video card = ASUS GeForce 8600GT 512mb I use Adobe Photoshop CS3 and have been frustrated with this issue... seemed like every few minutes the dreaded pause and then black screen Fix #5 - turning off AERO did the trick! Not as pretty of a view... but (knock on wood) no errors for the last two weeks! Thanks again.
HaZe303 Sweden	Posted at 2:59am on July 11th, 2008
New 4850 has huge problems with this issue. Tried all supported drivers: 8.5, 8.6, 8,7beta. No help. I have no issues with TDR with my 8800GTX so Im an inch from selling this damn card and buying a 9800gtx+ instead!!! But thx for trying.
andy uk	Posted at 7:24pm on July 10th, 2008
hey guys i just discovered a way to make this work on my IBM lenovo N200 with a Geforce GO 7300 i installed riva tuner, i messed with the frequencies of the core and memmory and stayed below my default ones, after that rive tuner showed me an option - RESET SETTINGS TO DEFAULT FOR THIS DRIVER !!! i hti that and i no longer the this fffin error! hope this works for you good luck
Jack0459 USA	Posted at 9:36pm on July 9th, 2008
I just deleted the drivers for the card in safemode and it went away It came back after i shut it down so i just did it again and now just use hibernate instead 01000010 01001111 01001111 00101101 01011001 01000001 01001000 01001000 01001000 01001000 00100001 00100001 00100001 00001101 00001010
qjkxc6 MO	Posted at 12:04am on July 9th, 2008
The second monitor enabled was making mine crash a lot, so I turned the color for the second monitor down to 16 bit on the second monitor. It fixed the problem without disabling the second monitor.
Dharam London	Posted at 11:52am on July 8th, 2008
HOW I FIXED this: Like most i was completely frustrated by this error, to the extent i was going to give up on pc gaming altogether. I had this issue when playing Crysis and Race Driver: Grid. Both amazing games by the way. FIX = Underclocking my graphics card Explanation = my card is an HD3870 overclocked card (retail). When i reduced it to stock speeds there were no more crashes. There are a whole host of reasons that this may occur and this may not work for you, but that is how i fixed it, thanks to this article or was it someones post. anyway thanks!!
Rob Newcastle Upon Tyne	Posted at 5:22am on July 8th, 2008
This is why it all goes wrong in the first place. During the installation of the new driver(regardless of which ones) Vista, an OLD file nvlddmkm.sys is copied into windows/system32/drivers and not the current one in the install. As a result the new drivers are attempting to access a file dated 11/2006 instead of 2/2007 ver 7.15.11.0065 which is in the newest WHQL driver ver 100.65 vista 32. Fix: Go to windows/system32/drivers and rename nvlddmkm.sys to nvlddmkm.sys.old. Go to the nvidia directory and find the file nvlddmkm.sy_ and copy it to windows/system32. Using the cmd window (DOS box) type EXPAND.EXE nvlddmkm.sy_ nvlddmkm.sys. When the expansion is complete, copy the new nvlddmkm.sys to windows/system32/drivers and restart the computer. Your computer should now work perfectly. I am Vista 64 just go in the corresponding directories and apply same plan as above. It is a ghost in the machine if you will even formatting your boot drive would not erase as it (the ghost) lodges itself in the kernel files so when you add the new driver it links with the old part of the nvlddmkm.sys driver file
Rob Newcastle Upon Tyne UK	Posted at 5:17am on July 7th, 2008
I suffered this for over a week i tried every solution mentioned above, gradually my BSOD became more frequent until i could not even use repair disc on my damaged drive (OS kernel). I decided today to completely remove the hard drive and install it in my XP system as an extra drive, with XP i formatted and defraged the drive and performed a disc check utility then I removed it and installed back into my Vista 64 system and done a fresh install of my OS. Originally this was not working as a repair as ghosts were left behind from the bad driver install which were affecting the smooth operation of the display driver NVLDDMKM My system is now completely running as normal. Remove affected drive from system install in diff system and format as an extra drive this removes any trace of kernel or NTLDR replace back in original system and reinstall OS and drivers whatever you do do not install driver 175.19 from Nvidia revert to driver 175.16 all other solutions failed especially the repair registry plan it was after this attempt that i had to do my first reinstall of my OS im not a total pc guru but i do not give in when i have a problem like this, if it works for you let others know Nvidia should have warned us and removed the driver from their site but they havent and wont :)
Jacob QLD	Posted at 3:43pm on June 9th, 2008
I would be keen to participate in a class action law suit against ATI if anyone is interested in pursuing one? Obviously it is a major problem, and ATI are basically refusing adequate support, to the detriment of many users. Why is nothing being done?
Aaron Maryland	Posted at 7:40pm on June 8th, 2008
I fixed it by underclocking my BFG 7800GT-OC back to original specs (400mhz and 1000mhz, down from 425 and 1050 respectively)
Henry China	Posted at 9:58pm on June 5th, 2008
I have found that my problem lies in the AMD dual core processer. If I disable one core, then the error never comes up again. But that also reduces the whole system performance.
Jim Athens	Posted at 11:25pm on June 2nd, 2008
I think that fix no 3 did it for me...just by setting the core speed 20 units lower the world just got better... ;)Thank u very much.
André Sweden	Posted at 8:14pm on June 2nd, 2008
Had the same problem with my HIS radeon 3870 (factory OC), but ati tools did not work properly. After i had installed AMD Overdrive and the latest catalyst software. I had to reinstall the game and it worked !:)
Rob Canada	Posted at 3:11am on May 12th, 2008
Hey, I just started having this problem 3 days ago. I looked every where on the internet to try and find any kind of fix and so far none of them work. I even got desperate and called Dell but to no avail. I have no idea where the error is happening so I have no idea on how to approach it to try and fix it. If anyone has any idea or suggestions please email me at dumbobob-nospam@msn.com just take out the no spam when your emailing. Here are my specifications Windows Vista 32bit Processor: AMD Athlon 64 X2 Dual Core 4200+ 2.20 GHz RAM: 1*2Gig stick Graphic: ATI X1300 Pro Thanks Again
murat mgx	Posted at 7:55am on May 7th, 2008
Amd Phenom 9600 asus M3A32-MVP-Deluxe motherboard corsior 2X2GB Ram Ati His 3870 512MB 620W Power 250GB+500GB HD
RJ USA	Posted at 3:56am on May 6th, 2008
When using fix 4, I could not locate the Fan speed option in the ATI Tool settings. Why is that? I use a Radeon X1300 pro
Pepe_carlos Madrid	Posted at 5:33pm on April 27th, 2008
Solved !!!!!!! I upgraded the bios with the latest version and errors has been missing! The bios previous version are 1309 and i upgrade to 1507 My bios is Phoenix award BIOS. If you need help please send an e-mail to josecch@terra.es
Michael Dees San Diego	Posted at 4:07pm on April 27th, 2008
I down clocked my memory in bios. Frikkin box is rock solid now. Bad memory stick?
FatRider St Louis	Posted at 7:54pm on April 19th, 2008
I have had the nvlddmkm error for about 4 months. This error can be very confusing as it is a blanket error message. Many people tend to blame Nvidia or bad drivers and in many cases this is true. However, this problem can be the result of several different issues. Drivers, heat, bad hardware, corrupt OS... etc. I tried virtually every "fix" out there. After 3 re-installs of Vista, too many driver installs to count, a new video card, we finally determined that my particular problem was a combination of bad RAM and a bad mobo. I am now error free! Point is, this problem can be caused by anything and only trial and error will pinpoint the source. This explains why so many out there still have it and why no one has found the magic bullet to fix it.
Edejon Nevada	Posted at 3:26pm on April 19th, 2008
The problem is with CCC. Atikmdag.dll has something to do with how CCC has the video card reference memory. Only install the display driver (catalyst 8.4 for example) and use ati tool or rivatuner to OC and regulate 3D/fan speeds.
Josh Australia	Posted at 7:49am on April 17th, 2008
Hey guys, this trick has worked for me several times and also a lot of friends who has had this problem. ok first of all, download powerstrip. now, install it. once its installed and waited for the 5 second thing with tips on the page, powerstrip will appear in your taskbar, right click on it and choose performance profiles, then configure. Then u will see a bar going from red to green, move both of your sliders down to the VERY bottom in the green area, test then apply. also use any software you already have to make the fan run automatically. as i said above, this has fixed A LOT of peoples problems and im glad i could help. Josh Marshman
Billy Brum, England	Posted at 1:07am on April 17th, 2008
finally got so fed up i bought an nvidia card and am now running rock solid. wish i just binned that ati card in the first place now instead of wasting money on a new cpu and 2 months of messing with a brand new pc. i will never buy ati again. ps. how come theres a Scottish flag but not an english one?
solu. usa	Posted at 8:16pm on April 13th, 2008
sorry i meant post 576
solu. usa	Posted at 7:50pm on April 13th, 2008
Here it is, the 100% solution, go to google and type "driver heaven atikmdag" click first link go to pg 39-40 and read instructions in yellow download his PDF and rid yourself of the error Credit to badMouth
RICHARD COSTA RICA	Posted at 4:12pm on April 6th, 2008
I HAVE THE SAME PROBLEM, I see and hear about this problem in several post in other blogs, and I try too many ways to fix that, and finally I fixed, in my case I only install the video card driver, in the dispositives adm, and Vista reinstall the driver automatically, and done, the problem blow away. Note:I have a ATI radeon xpress 1150 and use obviously windows vista, I think that the problem begins when I try to upgrade my catalyst, well thanks to every people who gives their help.
coolsystems home	Posted at 11:37pm on April 4th, 2008
fan speed in atitools fixed my HD2600 PRO.
Paul R Sydney	Posted at 1:01pm on April 4th, 2008
I tried nearly every suggested fix posted here but in the end the only thing that worked was replacing the NVIDIA Video Card and 2GB of RAM (under warranty !!) I bought an XPS420 Intel Core 2 Quad CPU Q6699 @2.4GHz 32 Bit running Windows Vista Home Premium with 4GB RAM and 500mb NVIDIA GeForce 8800 GT. I had the same problems with the video card crashing from day one of turnng it on. Now all okay (so far)