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Windows 7: BSOD after post, before Windows. Help!

26 Feb 2014   #1

Windows 7 64bit premium
BSOD after post, before Windows. Help!

I'm having BSOD after the BIOS posts, but before Windows 7 starts. This started happening after I installed three new case fans (so now I have 5) to my self-built PC that has been running nearly perfectly since September 2012. I am worried I'm having a faulty piece of hardware since installing the two new case fans. Upon pressing the power button the computer will post and show the bios splash screen, and then flash a BSOD too fast to read and restarts. So I can't post any dump file, unless there is some way to do that without starting Windows.

My System Specs:
OS - Windows 7 64-bit Premium retail, orignal OS installed Sept. 2012.
System built by me September 2012.
Intel Core i5-3570K Quad-Core Processor 3.4 GHz 4 Core LGA 1155 - BX80637I53570K
Video Card -
EVGA GeForce GTX 570 HD Double Shot 1280 MB GDDR5 PCB PCI-E 2.0 Graphics Card 012-P3-1577-KR
MotherBoard -
Gigabyte Intel Z77 LGA 1155 (GA-Z77X-UD3H)
Power Supply - brand & wattage -
OCZ ModXStream Pro 700W
Komputerbay 16GB ( 2 X 8GB ) DDR3 PC3-12800 1600MHz
Primary C: Drive -
Crucial m4 256GB 2.5-Inch (9.5mm) SATA 6Gb/s Solid State Drive CT256M4SSD2 (Windows and most programs are installed on this drive)
Data Drives -
A: Western Digital Caviar Black 2 TB SATA III 7200 RPM 64 MB Cache Bulk/OEM Internal Desktop Hard Drive - WD2002FAEX
WD Green 2 TB Desktop Hard Drive: 3.5 Inch, SATA III, 64 MB Cache - WD20EZRX
F: Seagate Barracuda 2 TB HDD SATA 6 Gb/s NCQ 64MB Cache 3.5-Inch Internal Bare Drive ST2000DM001
ASUS (USB-N13) Wireless-N USB Adapter IEEE 802.11b/g/n

What I've tried so far:
The first thing I did was remove the new case fans, because I was worried my power supply was not enough. But the same thing kept happening.

I powered off the computer, and tried powered on again. When it start up it goes to windows error recovery, where the screen shows you have two options:
Launch startup repair( recommended)
Start windows normaly

I tried Launch Startup Repair multiple times, and the computer restarts and comes back to the same screen. So I choose "Start Windows Normally" and before Windows starts I get this BSOD every time:
Stop 0x0000007E (0xFFFFFFFFC0000005, 0xFFFFF8001A4E077E, 0xFFFFF880009A9308, 0xFFFFF880009A8B60)

I turned of the PC and inserted the Windows 7 disc and tried booting from that. It shows windows files are loading and then I get seemingly random variety of BSOD each time I try to boot from the Windows disc. So then I tried entering safe mode while booting from the disc. Same thing happens after all the drivers load - seemingly random BSODs.

So then I opened the case and reseat every cable that I had to unplug to install the case fans. I reseated all my RAM also, since I had to remove one stick of RAM while installing the fans. That didn't help. So then I removed the stick of RAM that I had initially moved to install the fans, thinking perhaps it was the problem. No change in the problem with only one 8 GB stick of RAM on the motherboard. Next, I tried to boot from the Windows 7 Premium retail disk.

Finally, I unplugged the power cord to the power supply and held down the power button for 10 seconds, then plugged back in and restarted the system. No change in the problem.
I'm stuck, help!

My System SpecsSystem Spec
27 Feb 2014   #2

Microsoft Community Contributor Award Recipient

Microsoft Windows 10 Pro Insider Preview 64-bit

Try removing the GPU and boot the computer in normal mode? Does it boot?

How old the computer is?
My System SpecsSystem Spec
28 Feb 2014   #3

Windows 7 64bit premium
solved it!

I built this system in September 2012.
Removing the GPU and trying to boot did nothing. I ran Windows Memory Checker from Hirens Boot CD (a Cd I downloaded online that contains a bunch of diagnostic utilities) and found that the 1st RAM stick failed. I pulled it, and moved my second RAM stick to the #1 RAM slot. It passed Windows Memory Checker.
I rebooted the computer and got the screen that says "Launch Start up Repair" or "Start Windows Normally".
I chose "Launch Start up Repair", and Windows started it repair routine - Yes!
Windows then rebooted normally and it's like nothing ever happened.
Long story short, I had a one bad stick of 8GB RAM. I wonder if I bumped it installing my case fans or something, I don't know.
I'm now going to start adding back everything one component at a time, starting with GPU card, so far so good.
I'm a little nervous about plugging the new case fans back in!
My System SpecsSystem Spec

28 Feb 2014   #4

Microsoft Community Contributor Award Recipient

Microsoft Windows 10 Pro Insider Preview 64-bit

Good news.
My System SpecsSystem Spec

 BSOD after post, before Windows. Help!

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