Windows 7: Computer shuts off randomly, mostly during first few seconds of bootup

My computer has been running fine for the past 2 years plus, but recently I've had a bunch of BSODs with titles like PAGE_FAULT_IN_NONPAGED_AREA, MEMORY_MANAGEMENT, SYSTEM_SERVICE_EXCEPTION and BAD_POOL_HEADER but after reformatting the computer appears to be fine until the past few weeks.

My computer have been shutting off (not down) by itself 2-5 seconds after ive pressed the power button, sometimes it will go past BIOS sometimes not, i've tried removing and inserting both of my ram sticks individually into all of the slots and the problem remains.



thanks for any help i can get

Someone else might have more input on this.

I would first run memtest 86. You can find a nice tutorial on the forum. I think it's best to let it run 6-7 passes without error before stopping.

When you run memtest make sure you do it one stick at a time. Alternitivly try running the system on one stick, then after a while shutting down and swapping the stick.

Here is the link of the tutorial
RAM - Test with Memtest86+[2]=Hardware and Drivers

I'd also test the HD with maker's HD Diagnostic extended CD scan.

Once the hardware is confirmed wipe the HD with Diskpart Clean Command accessing DISKPART At PC Startup to clear the boot sector of code, then follow these same steps closely to get a perfect Clean Reinstall - Factory OEM Windows 7.

Make sure to note how drivers are handled in Windows 7 as it is different than in the past.

I can't boot up from the usb as my computer doesn't get into bios at all. Btw, i'm starting to hear 2 beeps right after i press the power button, then it shuts down. has it anything to do with my ram?

Apart from that my computer keeps showing no hard drive detected but the hdd light on my casing is blinking and its working perfectly fine.

It depends on which bios you are using for beep codes, the fact that it is emmiting beep codes means it should be fixable.

Have you tried to boot with only one stick at a time? With the stick in the first slot. You can try to reset your bios in case it has become corrupt.

The same problem occurs, I can't even get to memtest, and if i do it wont run for even 1 pass without shutting down. 1 thing i've noticed about the shutdown is that if it's shutting down from desktop, it will close all my applications before shutting down.

EDIT: ok i have the slightest inkling that its my RAM, ill get new RAM tmr and ill update this thread accordingly. meanwhile thanks for all the help

Confirm that it's initiating and completing a full shutdown ("Logging off Windows" followed by "Shutting down")

Did you try removing one at a time each stick of RAM to see if it resolves the issue and isolates a problem stick?

Since you have Kingston RAM they offer the best tech support in the business and guarantee their RAM for life. They will help you test it and RMA if necessary.

Boot into BIOS setup to look over all of the settings. Are the HD and RAM detected and register correctly?

Why can't you boot a CD? Did you follow the steps shown in How to Boot A Computer from CD or DVD - YouTube.

If you don't have a CD drive, then make sure you wrote the ISO to flash stick correctly using Universal USB Installer then look for it by name in the one-time BIOS Boot Menu by tapping its key at boot, under USB, REmovable or HD's. You may need to expand a listings. 90% of failures to boot disk or stick are user problems.

No, it skips the logging off windows and shutting down screens. yes i did remove each stick of RAM and testing it but both problem persists.

Booting into bios version V1.4, CPU Frequency 2793MHz Physical Memory Size 4096MB, and yes it detects my samsung 1tb hd.

i will try booting with cd and come back.

More info about beep codes here, including RAM: Beep Codes

Besides thoroughly testing the RAM and slots using RAM - Test with Memtest86+
I would try the other set of slots as suggested there.

Then if no progress I would consult Kingston since it's their RAM which is the best-backed in the business.