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Windows 7: Win7 shuts down PC at splash screen

27 Oct 2019   #1
Mr Earl

Windows 7 Home Premium
 
 
Win7 shuts down PC at splash screen

First post at this forum, wish the circumstances were more pleasant. My desktop/HTPC suddenly began shutting down just as the splash screen appears. I have done the following:

- replaced power supply, no change
- pulled all expansion cards (graphics, TV tuner, sound) one at a time, no effect
- started in safe mode, PC locks up as windows system files are loading
- changed boot priority to CD first, same result.
- disconnected hard drives, boot from CD, same effect.
- pulled memory one at a time, no changes.
- removed CPU cooler, cleaned CPU and cooler and applied new MX-4 paste, no effect

My tentative conclusion is that the MB has failed in some way. Does anyone have any thoughts?


My System SpecsSystem Spec
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27 Oct 2019   #2
Mr Earl

Windows 7 Home Premium
 
 

One more clue: the PC will run without shutting down with just the BIOS screen displayed. It's only at the splash screen - whether loading from HDD or CD - that the problem occurs.
My System SpecsSystem Spec
28 Oct 2019   #3
FreeBooter

Windows 10 Pro x64
 
 

Boot computer with bootable Ubuntu USB stick to find out if boot problem cause by Windows 7.


Create a bootable USB stick on Windows | Ubuntu tutorials
My System SpecsSystem Spec
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28 Oct 2019   #4
wither 2

Windows 7 Pro SP1 64 bit
 
 

I wonder if your CMOS battery is dead.
My System SpecsSystem Spec
28 Oct 2019   #5
Megahertz07

Windows 7 HP 64
 
 

Under BIOS there is no load on the hardware.
Try to boot from a Linux USB drive as @FreeBooter suggested.
My System SpecsSystem Spec
28 Oct 2019   #6
Mr Earl

Windows 7 Home Premium
 
 

I'll check the CMOS battery (easiest thing first!) and then try Ubuntu - thanks!
My System SpecsSystem Spec
28 Oct 2019   #7
Mr Earl

Windows 7 Home Premium
 
 

CMOS battery showed 2.78 volts, replaced it anyway, boot still crashes at splash screen. Not sure I understand the logic of booting from an Ubuntu USB drive. If it works, meaning Win 7 is causing the boot fail, that doesn't get me anywhere as I want this PC to run Win 7. If it doesn't work and boot still fails, that doesn't get me anywhere either. If Ubuntu loads, will it be able to diagnose a bad MB or a bad CPU? That would be the only value, it seems.
My System SpecsSystem Spec
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29 Oct 2019   #8
Megahertz07

Windows 7 HP 64
 
 

Ubuntu is just to be sure it's a hardware problem. If it fails, you are sure it's the CPU the MB or the memory and not a software (win7).

I have a computer that is also shutting down. It can be the i5 or the Z87 MB. Normally is the chipset that fails.
As I think it's the MB so I bought a used one on eBay. Did not arrived yet.
My System SpecsSystem Spec
29 Oct 2019   #9
Mr Earl

Windows 7 Home Premium
 
 

Quote   Quote: Originally Posted by Megahertz07 View Post
Ubuntu is just to be sure it's a hardware problem. If it fails, you are sure it's the CPU the MB or the memory and not a software (win7).

I have a computer that is also shutting down. It can be the i5 or the Z87 MB. Normally is the chipset that fails.
As I think it's the MB so I bought a used one on eBay. Did not arrived yet.

That makes sense, but isn't the fact that the PC shuts down whether it boots from the HDD or the Win7 CD giving me the same information as booting from a Ubuntu disk/drive?
My System SpecsSystem Spec
29 Oct 2019   #10
Megahertz07

Windows 7 HP 64
 
 

Quote   Quote: Originally Posted by Mr Earl View Post
That makes sense, but isn't the fact that the PC shuts down whether it boots from the HDD or the Win7 CD giving me the same information as booting from a Ubuntu disk/drive?
If you boot Ubuntu from a USB flash disk and it fails (shuts down) you will know that isn't the disk or windows, it's the CPU the MB or the memory.
My System SpecsSystem Spec
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 Win7 shuts down PC at splash screen




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