Topic Title: Corrupted Driver; Can't Fix
Topic Summary:
Created On: 07/19/2013 08:25 PM
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 07/19/2013 08:25 PM
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Posts: 2
Joined: 07/19/2013

Graphics Card

ATI Radeon HD 4870 Code Name RV770

Error persists with over-clocking disabled.

AMD Catalyst Driver Version, and Driver History

Tried both 3.1 and 3.4 Beta, currently running 3.1

Operating System

Windows 7 Service Pack 1 (64-bit)

Issue Details

My issue is that when playing a specific game (Dota 2) my computer shuts down with an error message involving atikmpag.sys. I believe my driver installation is corrupted, because this started happening when I upgraded the driver (not sure what the original version was.) If I try to install a new driver version, I receive a BSOD in the middle of the installation with a message involving Plug and Play and a Faulty Driver. If I try to uninstall the driver, I receive a BSOD with the error involving atikmpag.sys. If I repair the driver it doesn't fix anything.

In Dota 2 I play with Anti-Aliasing x2 and no VSync. When it crashes, I get a bunch of squares on the screen that are about 10 pixels by 10 pixels.

Motherboard or System Make & Model


Power Supply

I don't have a flashlight and can't currently tell. If it is really important I can provide in a reply.

Display Device(s) and Connection(s) Used
Just a single monitor with no special connections.

Applications and Games

Crashes when playing Dota 2, and when trying to uninstall or install a different driver.

CPU Details

Intel Core 2 Duo E8400 (3.00 GHz Dual Cores)

Motherboard BIOS Version
Dell Inc. A19, 5/31/2011

System Memory Type & Amount

DDR2 (8 GB) (2 Sticks)

Additional Hardware

Additional Details
Considering all of the crashes have errors involving a faulty driver, I am pretty sure it is not a hardware issue. If it is a hardware issue, it might involve overheating, as I've seen my GPU reach 105C, but it looks like that is normal with the HD4800 series.

Edited: 07/19/2013 at 08:31 PM by kotoran
 07/20/2013 06:12 AM
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Dungeon Master

Posts: 4199
Joined: 01/27/2008

105c is pretty hot. Take the card out of the case and use compressed air to blow the fluff out of every nook and cranny, especially around the fan and through the shroud channels (both directions).


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 07/20/2013 07:54 AM
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Posts: 2
Joined: 07/19/2013

I'll clean out the card, but there is a software issue as well for sure. Now the screen often jerks up and down rapidly, even when it is at it's idle temperature of around 70C. I still can't update my drivers as my computer crashes due to faulty drivers when I try to. It's a very annoying cycle that I can't figure out for the life of me.

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