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A personal computer that resides in one location with its core components inside a case separate to third-party peripherals required for operation, such as a mouse, keyboard, and monitor.

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Computer crash then no signal on monitor

Hello,

Today, i was randomly playing on my pc desktop, and then, suddenly, my screen went black and even though the pc was running i could’nt hear any game noises, so i knew my pc had crashed. So i turned it off with the button behind it, and now when i try to restart it, the fans and the lights of the pc are running but my monitor doesn’t get any signal and my peripherals either (keyboard not lighting up…) which means the pc is not booting properly.

I know this is a common issue, and i’ve been looking through many threads to find a solution. Here’s whats i’ve tried so far:

  • test the screen with the same hdmi cable on an other device (works fine, which means it comes from the computer)
  • use an other gpu (hdmi cable connected to it)
  • running only one stick of ram and trying every ram slot
  • reseating gpu
  • clear the cmos
  • connect the hdmi cable to the mobo instead of the gpu
  • reseat the 24pin plug on the mobo

I’m kinda desperate here, i hope you guys can think of solutions i haven’t tried yet.

Thank you for your time.

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System overheating? Bad PSU?

Is there a smell of smoke/any burnt-looking components?

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Hi abc07595

please share your pc specification,

e.g. power supply, mainboard, ram, etc

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PC specs:

CPU: AMD ryzen 5 2600

GPU: EVGA 1060 6gb

Motherboard: GIGABYTE B450M DS3H

RAM: 2 x 4gb HyperX Fury DDR4

PSU: Corsair CX500

I've been using my computer for the past 6 month with these specs without any problem whatsoever, so i don't believe it's overheating related.

There is no sign/smell of burnt components and my PSU has been working fine for the past 4 years.

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Hi abc07595

test the computer memory, one stick at a time.

consider removing the graphic card and test using onboard graphic.

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Hi Augustine

I already did all those things.

I think i'm gonna get a new PSU and see if it fixes it.

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Why is it that some people ask for specs? Knowing that does what exactly? As I have asked pretty much every Tech guy I’ve ever talked to. If your PC turns on fan and all, especially if the lights you refer to are on the front of the pc, that should mean your Pc is actually working and you just don’ see it. Sounds like your graphic card isn’t working or at least the problem is the video output and not the rest of the Pc. However your method of fixing the issue could be part of your current difficulty. Try resetting the pc. Turn it off and open it up make sure it’s clean of dust and check every connection (the HDD memory , disk drive, ect, even your SATA connections. Then pull the battery out for a minute, it should be the only one in there. This resets the BIOS. Now put the battery in, start it up. Use a regular monitor to check if you’re getting the signal from the pc. If that doesn’t work I’ll need more info from you.

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The video card is not the problem because i tried it with an other one and still no output. I already reseted the bios several times, doesn't boot up. I've tried to connect the pc to my tv, still no output. I've also checked the cables, i don't think that's it. This leads me to think it's the PSU that has slowly died.

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People ask for specs because certain hardware have certain problems. Some users use incompatible hardware that doesn't conflict from the very beginning, especially if the user has outdated BIOS, etc. Before making assumptions you should always check the facts. What are the symptoms, on what hardware and what actions took place before and after the incident. All these play a major role in remote troubleshooting.

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Tell me I cant put Dell products in my HP, or Gateway for that matter. Video cards are more universal than my RAM is. So it's hard to believe someone's specs matter. Now I'm no expert of PCs but I surely believe if you can plug it into your motherboard, you can run it. Power supply could be an issue. You wouldnt believe how many tech guys from MSN told me I couldnt run WIN10 with what I have in my PC. I'm currently running Windows creator 1809. So then, tell me something. If it's not compatible it wont fit, that's hardware. Software dont last long if it's not compatible, that's programming. However, let us seperate the conflicting info. You say the video card isnt the problem you tried another. Conclude, no video output. Since you reset the BIOS which returns you to original factory defaults the issue sounds hardware related, bad connection, bad ground, broken solder points are a dead giveaway. Now it doesnt boot up? Since you have no video it's hard to determine what it's actually doing isnt it? Reset!

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I hope your not powering on the PC then plugging it into something. You'll definately get no signal then. Just a reminder for clarification. Turn PC off, unplug power cord, remove video card and BIOS battery. Give it 5 minutes. Then put in the video card, connect a monitor, then the battery, then the plug. Your PC is supposed to boot, video card also. Implicated is that it turns on. If had a short or bad ground it would turn itself off, or burn up. Worst case scenario? You have a cracked motherboard. The video section of the motherboard is not getting power would be a valid conclusion. Check to verify if you can.

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I would try another power supply - have you a spare or can you borrow one to test?

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as i said i plan to get a new one since i dont have any spare one.

Thanks though.

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Too bad. Let us know how it goes.

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After reading all the symptoms, I was almost certain it was your Graphics Processing Unit but after reading your specs and noticing that a GPU is missing I’m going to go with a Power Supply Unit failure. Usually a blown capacitor. It’s repairable but I wouldn’t advise it. Always invest on your PSU, it protects your computer which is more expensive than the PSU. Also, capacitors 99% of the time don’t blow up by themselves. You might want to install a UPS or straight up a Voltage Regulator to prevent future accidents.

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Just as little update, i’ve bought a new psu as i said and apparently that’s where the problem came from as it is now fully working as it used to.

Thanks to all for your help.

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Good to hear!

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abc07595 さん、ありがとうございました!
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