Random Freezes, BSOD, other crashes

Hi, I built a desktop for myself in January of this year and I've had semi-random crashes a few times a week ever since. I updated all the system specs in the user pane, but basically it's Windows 7 Ultimate x64 installed on a SSD with another HDD for most of my data and stuff. The comp uses a sandybridge CPU and motherboard, but I don't think the problems are related to the issues for which those MBs were recalled.

I am unable to reproduce the crashes, but I can almost guarantee that one will happen in any given week. It doesn't seem to matter if I'm gaming, just surfing the net, using lots of apps/few apps, etc. I also can not predict when I will get a BSOD, when the computer will simply freeze, or when the screen will flash with those colors that look like a video card failure.

These crashes come sometimes a few times in a day, and at other times I can go a week or two without a problem. I have tried to keep my drivers updated, and I believe that my BIOS is the most current version as well. This is my first personal build and I've been expecting and dealing with problems like this, but I simply cannot seem to find the cause of these crashes, and it is really starting to be a bother.

This may be unrelated, but sometimes when I boot up the computer, it says it is unable to find the SSD (Where the OS is installed). I usually just reboot it and it works, and I can not predict when I will get that boot error. I've also run memtest and found no errors; I think I quadruple-checked all my wiring and such inside the case and I believe everything is set up correctly - it seems so odd that the computer will run like a dream for days on end, then suddenly just crash.

Any help you may be able to give will be greatly appreciated!

Thanks for the quick reply!

I checked and the mv91xx.sys file is in 3 different places: the proper c:\windows\system32\drivers but also
C:\Windows\System32\DriverStore\FileRepository\mv91xx.inf_amd64_neutral_afacc001e9dc1ee8 and
C:\Program Files (x86)\Marvell\mv91xx\driver

Should I delete the other 2 files? Or delete those folders completely?

As for the other crash cause I will look into the possible fixes, thanks for pointing me in the right direction!

Hi, I am still getting freezes on my machine, though the BSOD seem to have stopped. Perhaps the Marvell controller is what was causing the BSOD?

At any rate, the freezing is still a constant occurrence, but I am still unable to pinpoint why or when it will happen. My computer has frozen twice today and 3 times yesterday, but it was fine for several days in a row prior to this. I have checked everything I know how to check, installed/updated every driver I can, and still the freezes come. I have noticed that they do tend to come more frequently when gaming, but I can have a freeze just browsing the internet with no other applications open.

I don't think heat is a issue as I have been watching the GPU-Z and CPU-Z programs and recording the temp. I have also double-checked all my wiring inside the case and ensured that everything is locked snugly into place. The freezing can occur 6+ hours after I boot, or it can happen within 15-20 minutes.

I have had some games crash once or twice without freezing the computer; WoW has crashed twice and given me a memory error. I ran the boot Memory checker on a UDB drive for a few hours and found no errors with my RAM, though.

I have looked at dozens of forums relating to the atikmdag.sys issues, but have found nothing that has worked for me.

Any help you may be able to give would be greatly appreciated; I'm at the point that if someone told me that it was for sure a certain piece of hardware, I would throw that piece away and get something else. This freezing problem has really crippled my computer, and this is the computer that I work on as well as game, so this is a very serious issue for me.

Thanks!

Thanks, I'll update to that latest driver, but I', pretty sure I have the 11.6 regular, and it doesn't look like they've changed much in the 11.6b update. I check my drivers every few weeks and I'm thinking that the issue stems from something else.

No, I usually don't. I'll try that too. Thanks!

It looks like driversweeper has been discontinued; at least that's what it says on the website. Is there another program I might use instead to clean out the old drivers? Also, in looking at the dmp files, i found reference to atikmpag.sys (different from atikmdag.sys) and so I searched for that file and found 6 instances of it on my computer - one in windows/system32/drivers and 5 in

system32/driverstore/filerepository/c7118907.inf_amd64_neutral_8dff244759d44064\B117547

or similar file repository folders. One instance of the file is dated as being last modified on 11/25/2010, which seems strange since I built the computer in January 2011. I scanned all files for viruses and found none, though. I wonder why this is giving me problems?