Following the advises from MSDN about "Bug Check 0xEF: CRITICAL_PROCESS_DIED"
These actions might prevent an error like this from happening again:
- Download and install updates and device drivers for your computer from Windows Update.
- Scan your computer for computer viruses.
- Check your hard disk for errors.
My note on this:
1) I don't receive any driver updates from Windows7 update for the 7850 nor do Windows7 recognise the 7850 gpu by default (only as a standard vga adapter)...the 7850 driver install on win7 is only done manually either by running the CCC (.exe) driver package or just installing the 7850 driver "alone" from the device manager(without CCC) ,after which the system begins to crash(after the required installation reboot). In Win 8,the situation is a bit different as post installation of the O.S,the 7850 is immediately recognized by win 8 & it even recommends a new driver installation .Even on stock 7850 drivers or the new windows update driver for the 7850, crashes start to happen randomly !
2) Complete scan done by KIS 2013,Nothing found
3) Completely scanned the HDD by HDTune, & chkdsk, No errrors found!
Upload the dump file from your Win 7 install. Is your system absolutely stable in Safe mode?
What other drivers/software have you installed? What order are you installing your drivers in? Have you tried installing your video drivers first before installing all your realtek ethernet, audio drivers?
ok, will be installing win7 64 ultimate again , but i didn't find much of .dmp file in win 8 either, priorly in win 7 also i didn't find any crash dump(.dmp) files anywhere, still will give a try again in win 7 .As i said,the system just crashes (black screen) & reboots,no bsod,no messages.
yes, the system seems rock solid in safe mode or even when i swapped my gpu with my older Nvidia xfx 6800gs in Normal mode!
The situation is that even if i install any drivers from mobo cd or gpu cd, or NOT it doesNOT Matter, once i install the 7850 gfx drivers all hell break loose! It makes absolutely no difference if
i)i had straightway post o.s installation,just installed the 7850 driver alone(from either the asus 7850 cd or from the asus latest website driver for the 7850 or from the amd/ati website provide latest driver for the 7850) excluding even the CCC
ii) done the Complete full package install of CCC & all its drivers(from amd website)
iii) installed realtek ethernet & audio drivers prior to install of the 7850 driver or henceafter.
iv) No other programs/applications installed (once i installed KIS 2013 to scan the system.Asus AI suite II,HW monitor,HDD Tune, Cpu-z,Gpu-z ,AIDA-64 & i thought these might be creating the crashes) but again did a Fresh clean install of windows without anything,(only the O.S & just the latest 7850 driver/without CCC even), but post install of the driiver & required reboot,..crashes again start occurring as it had been happening !
Power draw at load(why would I mention idle power?!) for the 6800GS is supposed to be about 70W. The 7850 is 130W. Surprising that its running off a Mercury 450W. I hope you're using the PCI-e power connector on your VX550 and not using any molex to PCI-e adapter.
So on a whole, Would then the corsair vx550w NOT able to supply the minimum required power draw for the whole system (including fx8350 processor, the asus mobo,the gpu 7850(presuming card will draw much less power at idle) ,8gb(2x4gb) ddr3 1600fsb ram & a Samsung dvd burner + keyboard & mice) even at idle....as it's seen the system just crashes anytime randomly even without doing anything,completely at idle(even majority of time at system/windows login only),...me just waiting for the crash to happen & yes it would soon happen.
Reset your motherboard options to defaults and then check. This does not seem GPU related - if it was, the crash would be in the driver not in the OS kernel.
I cleared the CMOS & put everything to default,still no difference in crashes !
Ok, i forgot, i also did a Clean boot /startup in Win7 as described here >
http://support.microsoft.com/kb/331796 but that too didn't help !