PC randomly crashes when gaming?

Hello Sevenforums.com,

I have been having problems with my PC where it would just randomly crash when gaming for no reason? No BSOD just crash and restart?

The games I play are team fortress 2 and killing floor *Steam Games "Paid for"*, The games would load fine no errors no lag I would play the game and BOOM would randomly crash and restart, I have no idea why And I really hate it! I built this pc for gaming and it seems it cant even do that... It only crashes when playing a game (Thought some games do work fine "XCOM Enemy Unknown & saints row 3") it would never crash other then that *I have had BSOD but forgot the message thought dose are rare*

My PC:
OS Microsoft Windows 7 Ultimate 64-bit 7601 Multiprocessor Free Service Pack 1
CPU AMD Phenom(tm) II X4 840 Processor
Motherboard Gigabyte Technology Co., Ltd. GA-MA770T-UD3
Memory 8.00 GB
Graphics Card NVIDIA GeForce GT 240
Sound Card (1) NVIDIA High Definition Audio (2) NVIDIA High Definitio
Screen Resolution 1440 x 900 x 32 bits (4294967296 colors) @ 59 Hz
Hard Drives SAMSUNG HD154UI SATA Disk Device

Notes:
*My graphics card is uptodate, So says the site.
*I really don't think its a overheat problem, I have four fans inside my pc and Speedfan show my temps below 40C.
*I don't have any mods or anything for dose games.
*I have run'd memtest+ and has come back with 0 errors.
*I have scanned my pc with Malwarebytes' Anti-Malware with 0.
*I have Avira installed and yep with 0.
*I have used prime95 left it for a long time got to test 10 *and closed it* CPU was at 100% no crash.
*I have used FurMark got 25116 Frams time 00:47:08 and still no crash CPU at 100%.
*I have used HD Tune did a error check all green blocks no reds or nothing."Here is a photo of my benchmark http://oi48.tinypic.com/352ordh.jpg"
*I have done a sfc /scannow and everything is fine.*Have added the .txt to the .zip*
*My windows 7 has been re-installed many of times and well its not really fix'd it.
*Files from SF_Diagnostic_Tool have been added.
*PC is not overclocked.

I really don't know what is wrong? And It sucks how I got to quit games like this
Yes this error has gone on for some time and normally I just let it go forget about it.. But its really ticked me off and well I normally come here when I have other pc problems, and this site sure dose help ! So I hope someone can help me here with my problem <3

Much Love
-J

Ps sorry for my bad English.

*Edit
Team fortress 2:
Minimum: 1.7 GHz Processor, 512MB RAM, DirectX® 8.1 level Graphics Card (Requires support for SSE), Windows® 7 (32/64-bit)/Vista/XP, Mouse, Keyboard, Internet Connection

Recommended: Pentium 4 processor (3.0GHz, or better), 1GB RAM, DirectX® 9 level Graphics Card, Windows® 7 (32/64-bit)/Vista/XP, Mouse, Keyboard, Internet Connection

Killing Floor:
Minimum:

OS: Windows XP/Vista
Processor: 1.2 GHZ or Equivalent
Memory: 1 GB RAM
Graphics: 64 MB DX9 Compliant
Hard Drive: 2 GB free hard drive space
Sound: DX 8.1 Compatible Audio
Recommended:

OS: Windows XP/Vista
Processor: 2.4 GHZ or Equivalent
Memory: 2 GB RAM
Graphics: 128 MB DX9 Compliant with PS 2.0 support
Hard Drive: 2 GB free hard drive space
Sound: Eax Compatible

The dump posted here is now old! The newest one can be found here

Welcome aboard, MrUser01.

Code:

*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************

Use !analyze -v to get detailed debugging information.

BugCheck 24, {1904fb, fffff88004727968, fffff880047271c0, fffff8800133e259}

Probably caused by : Ntfs.sys ( Ntfs! ?? ::NNGAKEGL::`string'+e919 )

Followup: MachineOwner
---------

According to Carrona.org, STOP 0x00000024: NTFS_FILE_SYSTEM
Usual causes: Disk corruption, insufficient physical memory, Device driver, Indexing, Resident antivirus, backup, defrag programs, Disk/Drive failing/failure

Pointing the red marked three out at first.
► Do a thorough disc check:

1. Update your SSD's Firmware (skip it, if it is not a SSD)
2. Reseat the sata and power.
3. Run chkdsk /f/r, following the option two of the tutorial Disk Check
4. Seatool for dos: SeaTools | Seagate download
   Burn it in a blank cd. boot from the CD, click on "Accept", wait for it to finish detecting the drives, then in the upper left corner select "Basic Tests", then select "Long Test" and let it run.

► Uninstall Avira.
Use Microsoft Security Essentials as your antivirus with windows inbuilt firewall, and free MBAM as the on demand scanner.

Download and install those, and then run full system scans with both of them, one by one.

► Uninstall Daemon Tools.
It is a very well known cause of Crashes with a windows 7 system.

Let us know the results.

Those two cables ... open them from your hard disk's end, clean them, and then plug them back.


For your second question, yes, it is the same in the both.

So, let us know the results when you are done?

Hi Kyle, dont feel bad, ok? :)
All your good helps are highly appreciated.

Arc said:

Hi Kyle, dont feel bad, ok? :)
All your good helps are highly appreciated.

I just get kind of bummed because you all made a post similar to mine but beat me by seconds, which makes it look like I copied you all. Been out of the computer scene for a while, haven't really done too much with Win7, just made the upgrade to it back in 2010.

But it is all good.

Hello, MrUser01. How long did you run memtest86+ and Prime95? What were your CPU temps while running Prime95?
Use a good CPU temp program while you run Prime95 and keep a close watch on it. Stop the test if temps get too high. I use Core temp. You may also watch CPU and GPU temps while playing games. After you finish with Arc's suggestions, if no problems are found and you are still crashing, Please try these things. Memtest needs to be run for 7 passes, usually best to run it overnight, Prime95 needs to be run for 2 hours according to the tutorial, I prefer several hours longer, but again, keep close watch on CPU temps. These tutorials may help.
Dump Files - Configure Windows to Create on BSOD
RAM - Test with Memtest86+
Hardware - Stress Test With Prime95