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Mayson

Computer crashes, even on boot disk, but runs fine in safe mode

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Posted · Original PosterOP

Motherboard
Pegatron M2N78-LA
Bios 5.10
Processor
AMD Phenom 9750 Quad Core 2.40 GHz
OS
Windows 7 Professional - 64bit
Video Card
(Onboard) Nvidia GeForce 9100
Nvidia GT 430
Ram
8gb DDR2 (4x 2gb)
Power Supply
430w
Computer turns off (no BSOD, just powers off) about a minute after loading windows 7 normally
Computer will run fine in safe mode, even under load, with no shutoffs
I removed the video card and re-plugged all motherboard power, running off onboard graphics
Ran Memtest with no issues on Ram
Fans run fine, and replaced the thermal paste on the CPU, so I don’t think it's overheating.
Computer will turn off while attempting to boot from Linux boot CD, even with main HDD removed
It seems to me that it has to be a hardware issue given it won’t even boot from a CD, but the fact that it runs just fine in win7 safe mode makes me doubt it could be the CPU or PSU.


It's a very old computer used only as a media device, but the puzzle of what is wrong has me stumped.

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First off, please change your lext color. It is near impossible to read under dark mode. (EDIT, not sure if it was a bug, you changed it, or a mod did. But your text is normal now, so disregard this)

 

As for your issue, it sounds like a hardware failure for sure. When it powers off do the fans spin up or does it just go dead?


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CPU Cooler: be quiet! - Dark Rock Pro 4 50.5 CFM CPU Cooler  (Purchased For $88.09) 
Motherboard: MSI - MEG Z390 ACE ATX LGA1151 Motherboard  (Purchased For $229.00) 
Memory: G.Skill - Trident Z RGB 32 GB (2 x 16 GB) DDR4-3000 Memory  (Purchased For $130.00) 
Storage: Crucial - MX300 1.05 TB 2.5" Solid State Drive  (Purchased For $200.00) 
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Video Card: Gigabyte - GeForce GTX 670 2 GB Video Card  (Purchased For $30.00) 
Case: Fractal Design - Define R6 ATX Mid Tower Case  (Purchased For $139.99) 
Power Supply: Corsair - HX Platinum 1000 W 80+ Platinum Certified Fully Modular ATX Power Supply  (Purchased For $130.00) 
Optical Drive: Asus - BW-12B1ST/BLK/G/AS Blu-Ray/DVD/CD Writer  (Purchased For $75.00) 
Monitor: Dell - U2417H 24.0" 1920x1080 60 Hz Monitor  (Purchased For $0.00) 
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Main PC: See spoiler tag

Laptop: Early 2014 Macbook Air. Intel i5-4260U, 4GB RAM, 128GB Apple PCI-E SSD, Intel HD Graphics 5000

Phone: iPhone XS Max 64GB: A12 Bionic. 4GB RAM, 6.5-inch 2,688 x 1,242 OLED, 3,174 mAh 

Wearables: Sony 1000XM2

Random devices in various stages of working: Dell Inspiron 1000 (Works perfect other than battery), Late 2008 Macbook Aluminum Unibody (For Sale), Gateway Solo W2000 Laptop (For writing floppies, needs a battery), iBook G4 (For Sale.), Surface 3 (Touch screen is borked, perfect otherwise.), Lenovo G580 (For Sale)

 

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How many times have you run it in safe mode? Sounds like a fluke one off thing. I kinda doubt it is but honestly these symptoms are odd af. Does it BSOD or just off instantly. Download mem test and give it a run (if it loads) maybe a fault ram stick thats particular? Sadly after that my only suggestion is a psu switch (im assuming its easier to test a new psu then a new cpu and mobo).

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Posted · Original PosterOP

Fans spin when it powers on, it reaches windows and works normal for about a minute, powers off, fans spin to a stop.

 

Runs in safe mode 100% of the time with no issues, even when running CPU stress tests.

 

Memtest ran and has no faults.

 

No BSOD, just shuts off immediately like the power switch was flipped. Does so even when trying to boot from CD with no windows hard drive connected to the computer.

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1 hour ago, Mayson said:

Fans spin when it powers on, it reaches windows and works normal for about a minute, powers off, fans spin to a stop.

 

Runs in safe mode 100% of the time with no issues, even when running CPU stress tests.

 

Memtest ran and has no faults.

 

No BSOD, just shuts off immediately like the power switch was flipped. Does so even when trying to boot from CD with no windows hard drive connected to the computer.

Then can't we narrow it down to something that Safe Mode doesn't run and Windows 7 normally does?


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Steam Caching / Home Media Serverhttps://pcpartpicker.com/list/JNx4r6

 

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Posted · Original PosterOP
10 hours ago, quiprr said:

Then can't we narrow it down to something that Safe Mode doesn't run and Windows 7 normally does?

That was my thought too, a driver issue or some program, but it wouldn't explain crashing while booting from a Linux CD with no windows 7 drive in the machine right?

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