My computer no longer boots.

MrSquifler

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Jun 8, 2016
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So about 3 maybe more months ago I went to boot up my PC and my monitor said there was no signal, I turned the PC off and tried again and it booted normally. The next day it did the same thing but it took 5 attempts before it would boot. The day after that it took 30. After this, I decided I would leave the PC on (not the best idea, I know) then there was a power cut and the PC was shut down. After this it would no longer boot, I went inside the case to see what was wrong and everything seemed fine, I rearranged the RAM and it still wouldn't boot so I started to remove components to see what was causing the error. Nothing changed. I then bread boxed it and have done this several times. Sometimes this works, sometimes it doesn't.

After various attempts the PC booted and I left it. Until a few days ago I accidentally turned it off, now I can't get it to boot at all, I have done everything I can think of but nothing works. I have tried a different CPU, different RAM, a different MOBO and a different PSU and this problem still persists. On the original mobo, it would often trip after various amounts of time for seemingly no reason, it would trip with RAM in, with no RAM in, it would last 30 seconds before tripping or 5 seconds. On Saturday I managed to boot 3 times but every time the PC would trip. I again tried today with a spare MOBO and everything turns on but it doesn't boot, this MOBO does not trip but I am still not getting a display on my monitor. I have tried using my GPU and the onboard graphics but still nothing.

I am completely out of ideas, I have spent the better half of a week trying to fix this PC after months of problems but I really can't find what's at fault. I'm certain the original MOBO has had its last days because it would frequently trip, but the spare one still doesn't boot and I can't think why.

My specs are:
i5 2500K
MSI B75A G43 (Original) Asus P8H61-MX (spare)
Corsair Vengeance 8GB DDR3
Asus GTX 770 2GB

Any help/suggestions would be greatly appreciated.
 
Solution
A Windows computer can fail to boot for one of three reasons: Bad software, bad hardware, or bad firmware. If you’re really unlucky, it can be a combination of the three.

In your case, the problem almost certainly relates to indiscriminate use of a data backup and recovery solution, which damaged your operating system’s software. For the purposes of comprehensiveness, we’ll also briefly cover the majority of troubleshooting methods for an unbootable Windows computer.

To my knowledge, there’s four kinds of common unbootable scenarios relating to Windows systems: There’s the Blue Screen of Death (BSOD); there’s a large number of unbootable machines with black screens; there’s a continuously rebooting machine, or bootloop. Can you...

MrSquifler

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Jun 8, 2016
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I forgot about the PSU. It's an XFX 850 and it's about 3 years old. I tried a different PSU and I had the same issue.
 

MrSquifler

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Jun 8, 2016
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I've tried an older Pentium processor and still nothing.

I have done no overclocking.

When the PC would boot it worked perfectly fine. RAM and CPU usage was completely normal.
 

MrSquifler

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Jun 8, 2016
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I'm using Windows 10.


 

YoAndy

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Jan 27, 2017
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A Windows computer can fail to boot for one of three reasons: Bad software, bad hardware, or bad firmware. If you’re really unlucky, it can be a combination of the three.

In your case, the problem almost certainly relates to indiscriminate use of a data backup and recovery solution, which damaged your operating system’s software. For the purposes of comprehensiveness, we’ll also briefly cover the majority of troubleshooting methods for an unbootable Windows computer.

To my knowledge, there’s four kinds of common unbootable scenarios relating to Windows systems: There’s the Blue Screen of Death (BSOD); there’s a large number of unbootable machines with black screens; there’s a continuously rebooting machine, or bootloop. Can you specify yours?

A few other unbootable conditions exist, but these generally indicate a hardware failure, which often requires a more sophisticated troubleshooting strategy.
 
Solution