YoYo155

The front facing speakers are the feature for me.

This might help https://support.microsoft.com/kb/156669

I often offer HWinfo, try it running the sensors only when given the option to choose. http://www.hwinfo.com/download.php

We need the dump files to have any sense of what happened, look for them in the minidump folder. C:\Windows\minidump. Copy them to a different directory, zip and upload the file.

Your friend can use driver sweeper to remove any trace of the "bad" driver after he uninstalls it from the device manager then apply the "good" driver instead. This time it should stick. http://www.guru3d.com/content_page/guru3d_driver_sweeper.html

This is most common when the BIOS setting responsible for the SATA Mode has been changed after the fact (after Windows has been installed). Switch between IDE and AHCI modes it should boot when one of those are set. Now if the setting was set to RAID it's a different story and a real pickle. Let me know .

This should suffice. http://windows.microsoft.com/en-us/windows/security-essentials-download

Anything overclocked?

I see Avast causing issues, please remove it using this Removal Tool. Also make sure that you are using the latest drivers for your GPU. lmvm atikmdagstart end module namefffff880`072c0000 fffff880`07cdb000 atikmdag T (no symbols) Loaded symbol image file: atikmdag.sys Image path: \SystemRoot\system32\DRIVERS\atikmdag.sys Image name: atikmdag.sys Timestamp: >Mon Jun 11 19:59:31 2012< Keep updating.

Dropbox is fine with me .

Dump files? C:\Windows\minidump. Copy the content of that folder to the desktop, zip it then upload here.

Good as long as you have access to the dump files upload them! C:\Windows\minidump

You're welcome, keep updating.

That is why I said what you can do in while booting.

Hi I went through the dump files and they are all similar. Built by: 7601.18247.amd64fre.win7sp1_gdr.130828-1532System Uptime: 0 days 0:16:14.334Probably caused by : ntkrnlmp.exe ( nt!IopProcessWorkItem+0 )BugCheck E1, {fffff800039bd1b0, 2, fffffa80076a0180, fffffa80076a0180}BugCheck Info: WORKER_THREAD_RETURNED_AT_BAD_IRQL (e1)Bugcheck code 000000e1Arguments: Arg1: fffff800039bd1b0, address of worker routine (do ln on this to find guilty driver)Arg2: 0000000000000002, IRQL returned at (should have been 0, but isn't).Arg3: fffffa80076a0180, workitem parameterArg4: fffffa80076a0180, workitem addressBUGCHECK_STR: 0xE1DEFAULT_BUCKET_ID: WIN7_DRIVER_FAULTPROCESS_NAME: SystemFAILURE_BUCKET_ID: X64_0xE1_nt!IopProcessWorkItem+0MaxSpeed: 2100CurrentSpeed: 2095BiosVersion = A11BiosReleaseDate = 08/03/2012SystemManufacturer = Dell Inc.SystemProductName = Inspiron N5110 This type of bugcheck doesn't give us a lot of information, what I can say is that it's due to a driver misbehaving. I see a fair bunch of outdated drivers that can be the cause but if I have to guess I'll blame McAfee personal firewall for these bug checks. The way we can use the PC to help us find the offending driver is by using Driver Verifier. http://www.sevenforums.com/tutorials/101379-driver-verifier-enable-disable.html make sure you read the instructions thoroughly ! DV is designed to bug check the machine and it takes up a fair bit of system resources to don't be alarmed as the laptop might be sluggish. Bug check the machine a couple of time then post the new dumps. Below are the suspect drivers. hamachi.sys Thu Feb 19 12:36:41 2009 LogMeIn Hamachi Virtual network interface driver http://www.carrona.org/drivers/driver.php?id=hamachi.sys PxHlpa64.sys Tue Oct 20 21:08:42 2009 Sonic CD/DVD driver (used by many different CD/DVD programs) http://www.carrona.org/drivers/driver.php?id=PxHlpa64.sys amdxata.sys Fri Mar 19 18:18:18 2010 AMD storage controller driver - usually from the Windows 7 DVD http://www.carrona.org/drivers/driver.php?id=amdxata.sys btmaux.sys Thu Oct 14 18:31:34 2010 Intel Bluetooth Auxiliary Service http://www.carrona.org/drivers/driver.php?id=btmaux.sys HECIx64.sys Wed Oct 20 02:33:43 2010 Intel Management Engine Interface http://www.carrona.org/drivers/driver.php?id=HECIx64.sys iaStor.sys Sat Nov 6 09:44:52 2010 Intel Storage drivers http://www.carrona.org/drivers/driver.php?id=iaStor.sys nusb3xhc.sys Fri Dec 10 06:50:35 2010 NEC Electronics USB 3.0 Host Controller Driver (previous BSOD issues with 2010 and earlier versions) http://www.carrona.org/drivers/driver.php?id=nusb3xhc.sys nusb3hub.sys Fri Dec 10 06:50:35 2010 NEC Electronics USB 3.0 Host Controller Driver (previous BSOD issues with 2010 and earlier versions) http://www.carrona.org/drivers/driver.php?id=nusb3hub.sys iwdbus.sys Thu Mar 10 01:43:23 2011 Intel WIDI Bus Enumerator driver[br]Related to Intel Widi - Wireless Display http://www.carrona.org/drivers/driver.php?id=iwdbus.sys speedfan.sys Fri Mar 18 18:08:46 2011 SpeedFan http://www.carrona.org/drivers/driver.php?id=speedfan.sys Apfiltr.sys Thu May 12 18:28:31 2011 Alps pointing device http://www.carrona.org/drivers/driver.php?id=Apfiltr.sys Rt64win7.sys Fri Jun 10 09:33:15 2011 Realtek RTL8168D/8111D Family PCI-E Gigabit Ethernet NIC http://www.carrona.org/drivers/driver.php?id=Rt64win7.sys CtClsFlt.sys Thu Jun 16 09:40:18 2011 Creative Camera Class Upper Filter Driver http://www.carrona.org/drivers/driver.php?id=CtClsFlt.sys stwrt64.sys Thu Sep 8 13:48:44 2011 SigmaTel High Definition Audio Codec http://www.carrona.org/drivers/driver.php?id=stwrt64.sys btmhsf.sys Wed Nov 2 14:26:12 2011 Intel Proset Bluetooth HighSpeed Filter Driver http://www.carrona.org/drivers/driver.php?id=btmhsf.sys iBtFltCoex.sys Fri Dec 9 21:45:13 2011 Intel Centrino Wireless (Bluetooth Adapter driver http://www.carrona.org/drivers/driver.php?id=iBtFltCoex.sys GEARAspiWDM.sys Thu May 3 22:56:17 2012 CD-ROM Class Filter Driver by Gear Software.[br]Also comes with iTunes http://www.carrona.org/drivers/driver.php?id=GEARAspiWDM.sys IntcDAud.sys Tue Jun 19 17:40:51 2012 Intel Graphics Media Accelerator HD Driver http://www.carrona.org/drivers/driver.php?id=IntcDAud.sys igdkmd64.sys Tue Aug 21 20:08:36 2012 Intel Graphics driver http://www.carrona.org/drivers/driver.php?id=igdkmd64.sys Netwsw00.sys Thu Dec 6 14:11:36 2012 Intel® Wireless WiFi Link Adapter http://www.carrona.org/drivers/driver.php?id=Netwsw00.sys mfehidk.sys Tue Jan 15 20:21:15 2013 McAfee Host Intrusion Detection Link Driver http://www.carrona.org/drivers/driver.php?id=mfehidk.sys mfewfpk.sys Tue Jan 15 20:21:30 2013 McAfee http://www.carrona.org/drivers/driver.php?id=mfewfpk.sys mfeapfk.sys Tue Jan 15 20:21:56 2013 McAfee http://www.carrona.org/drivers/driver.php?id=mfeapfk.sys mfeavfk.sys Tue Jan 15 20:22:16 2013 McAfee Anti-Virus File System Filter Driver http://www.carrona.org/drivers/driver.php?id=mfeavfk.sys mfefirek.sys Tue Jan 15 20:24:04 2013 McAfee http://www.carrona.org/drivers/driver.php?id=mfefirek.sys cfwids.sys Tue Jan 15 20:24:37 2013 McAfee http://www.carrona.org/drivers/driver.php?id=cfwids.sys

What are the bug checks you are getting? You can choose "Disable automatic restart on system failure" from the advanced boot menu (F8 on Boot) that way the PC won't restart automatically so you'll be able to at least give us hints as to what is going on with the BCCodes.

This could be a thermal issue. Do you monitor the temps somehow? Try speccy -http://www.piriform.com/speccy Does Furmark do the same? http://www.sevenforums.com/tutorials/100356-video-card-stress-test-furmark.html What is the make and model of your PSU?

I have no info about your system, so it's up to you to verify. Did you look into downloading HBCD?

The CPU has nothing to with it if the bug check is always 0xF4.. Did you look for a BIOS update?

0xF4 bug checks with a third parameter = 3 is a system critical process terminated which Windows can't continue without, that forces the box to bug check. More often than not it's blamed on csrss.exe but that is simply because it's the one that allows user-mode in Windows. 0xF4 are also attributed to storage and virtual memory issues. I will need the kernel Dump to know more . If it's storage related, be it a faulty SATA cable / port or even the storage solution itself I doubt there would be any dumps created, but it's worth a shot. Download Hiren's Boot CD and boot into MiniXP that will allow you to check if the dumps were created and extract them if so. The folder the minidumps are located: C:\Windows\minidump The Kernel dump, a much larger file you'll need to upload it to an external hosting service (dropbox\skydrive), is a lone file in the Windows directory. C:\Windows\MEMORY.dmp

Yep it seems to be the culprit. This might be a simple fix, but until I get to look at the dumps I can't tell you.

That's small enough, this is odd.. You can upload the dumps to your skydrive or dropbox for that matter and I'll have a look at them tomorrow .

Hmm, how much does it weigh (Kb/MB)?

Sure . Simply choose More Reply Options at the bottom right and you'll get an Attach option at the bottom where you can upload the file.

The dumps contain valuble information as to what the fault was. I (or anyone else with knowledge about debugging Windows) can analyze them and suggest actions to be taken based upon them. But if you don't want to, that is your choice.