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Can't figure out what is making my computer freeze

Last response: in Systems
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August 7, 2012 10:06:14 PM

My system keep randomly freezing. There's nothing in windows log. usually freeze when playing a game, watching a video (VLC) or when listening to streaming content with flash.
I tryed installing latest NVidia drivers, I also tryed installing graphic card manufacturer drivers instead.
Dont know if its related but i also get a IastoreA.sys bluescreen when booting about 1 out of 10 times.
My RAM is setted to the right speed in BIOS.

I did set temp alarm in BIOS never heard a blip.

The case got 2 100mm fan on top (outake)
there's 2 fan intake blowing through the radiator of the water cooling system.
Apart from that there's the PS fan and 2 fan on the heatsink of the graphic card.
I dont think its a temp problem.

Anyone got a clue?

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System Information
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Time of this report: 8/6/2012, 21:46:32
Machine name: DESKTOP
Operating System: Windows 7 64-bit
System Manufacturer: Gigabyte Tecohnology Co., Ltd.
System Model: X79-UD3
BIOS: BIOS Date: 11/02/11 13:46:55 Ver: 04.06.04
Processor: Intel(R) Core(TM) i7-3930K CPU @ 3.20GHz (12 CPUs), ~3.2GHz
Memory: 16384MB RAM
Available OS Memory: 16336MB RAM
Page File: 2600MB used, 30070MB available

---------------
Display Devices
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Card name: NVIDIA GeForce GTX 560
Manufacturer: NVIDIA
Chip type: GeForce GTX 560
DAC type: Integrated RAMDAC
Display Memory: 4062 MB
Dedicated Memory: 2014 MB
Shared Memory: 2047 MB
Current Mode: 1920 x 1080 (32 bit) (60Hz)
Monitor Model: W2353
Monitor Id: GSM56EF
Native Mode: 1920 x 1080(p) (59.934Hz)
Output Type: DVI
Driver Name: nvd3dumx.dll,nvwgf2umx.dll,nvwgf2umx.dll,nvd3dum,nvwgf2um,nvwgf2um
Driver File Version: 8.17.0012.9610 (English)
Driver Version: 8.17.12.9610
DDI Version: 11
Driver Model: WDDM 1.1
Driver Attributes: Final Retail
Driver Date/Size: 2/29/2012 20:02:00, 17642816 bytes
WHQL Logo'd: n/a
WHQL Date Stamp: n/a

------------------------
Disk & DVD/CD-ROM Drives
------------------------
Drive: C:
Free Space: 18.7 GB
Total Space: 114.4 GB
File System: NTFS
Model: Corsair Force 3 SSD SCSI Disk Device

Drive: D:
Free Space: 741.9 GB
Total Space: 953.9 GB
File System: NTFS
Model: WDC WD10 01FALS-00J7B1 SCSI Disk Device

Drive: F:
Model: DTSOFT Virtual CdRom Device
Driver: c:\windows\system32\drivers\cdrom.sys, 6.01.7601.17514 (French), 11/20/2010 05:19:21, 147456 bytes

Drive: E:
Model: HL-DT-ST DVD-RAM GH22NS30 SCSI CdRom Device
Driver: c:\windows\system32\drivers\cdrom.sys, 6.01.7601.17514 (French), 11/20/2010 05:19:21, 147456 bytes

Thanks
August 7, 2012 11:28:01 PM

Are you trying to overclock at all?
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August 7, 2012 11:39:41 PM

nope i installed the pieces (and I used a static bracer) setted the BIOS RAM clock and installed W7
The problem started on day one
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Related resources
a c 113 B Homebuilt system
August 7, 2012 11:53:45 PM

Power supply?

Did this just start?

Have you checked for mb updates?

BIOS updates?
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August 8, 2012 12:00:57 AM

power supply is
"OCZ ZS Series 750W 80PLUS Bronze High Performance Power Supply compatible with Intel Sandy Bridge Core i3 i5 i7 and AMD Phenom"

I'll check the Bios and board update right now
i must admit i always suspected the graphic card since it always crashed when using multimedia.
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a c 113 B Homebuilt system
August 8, 2012 12:09:28 AM

Possible. You might want to try to get a lock in safe mode. That would help narrow it down. That virtual optical drive would be suspect as well.
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August 8, 2012 1:10:37 AM

iaStor.sys is the driver for Intel Matrix Storage Manager. Update it in safe mode IntelĀ® Driver Update Utility. Go here to see if your storage drivers need to be updated: http://www.intel.com/p/en_US/support/detect?iid=dc_iduu.

Also the new tech is not working well with the older GPU's. On the Nvidia website there are special downloads for people who are running the X79/Ivy bridge with the older 5xx series GPU's. Just be carefull in downloading the correct one.

I wish I could be of more help.
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a b B Homebuilt system
August 8, 2012 2:15:39 AM

Random lockups and freezes are usually memory related. Try running memtest and see if you get any errors. Run only 1 stick at a time for while and see if you still get the same problem.
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August 8, 2012 3:53:49 AM

Mem test runned completely a few days ago everything was fine.
I'll try removing mem stick last as 2 of them are behind the radiator of the cooling system.

i'll update intel storage drivers again (a few month ago there was no google hit on iastoreA.sys (not iastor.sys) )
Oh and i'll update BIOS tomorow too
Thanks to everyone helping me so far :p 
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August 8, 2012 7:17:51 AM

Ok, I think I may have some answers for you.

First, iastor.sys file is an important part of windows especially when one is setting up a RAID system. Did you set up a RAID system for your computer? The capital "A" at the end of istore is interesting. Maybe talk to a RAID expert on here and find out if that is a RAID designation. IDK.

I see you have two hd's. Did you confugure them properly? I didn't when I first got into this and they worked well at first and then some problems began. i had to go back and redo them. Also some mother boards will change settings if you experiment with overclocking. My ASRock changed the drive settings from AHCI to IDE without me realizing it. So check t see how your HD's are configured in the bios.

Also, somehow the file may have been corrupted. You may have to go through a reinstallation process.

I have no idea what kind of relation your iastor.sys BSOD has to do with your GPU.

Best of luck.
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August 9, 2012 9:16:34 PM

I finally updated BIOS (I hate doing this)
It didnt crash since.

Thanks everyone
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!