2 month old gaming computer shut down and won't turn on - light on mobo

Barking Krab · Mar 20, 2014

Hi, a few months ago I built my own gaming rig, and I've had problems similar to this in the past with this computer. Sometimes, for no visible reason, it just shuts down. I can usually turn it straight back on, but if it does it repetitively I make sure the wires aren't loose and it usually sorts itself out.

It is DEFINATELY not to do with temperature, I have a CPU cooler bigger than my head with lots of decent fans. Temps never go above 28 Celsius.

Off the top of my head, I have

Intel 4770k 3.5ghz Processor
MSI Z87-GD65 Gaming MOBO
16gb ram (2x8gb)
MSI GeForce GTX 780ti GPU
2tb seagate hard drive
250gb Samsung ssd drive
Corsair Platinum AX760 (can't remember actual name)
A big ass Noctua CPU cooler

So I was just gaming as usual earlier, web based game nothing performance challenging, and then it shut down. So I opened it up, made sure everything was plugged in, then turned it on again.

Everything was cool for about 5 hours, and then it shut down again. Except now it won't start up!

I've tried resitting the ram, no change, and the power button on the motherboard is on, but nothing happens when pressed.

Any help or advice would be great, but I really really don't want to have to take it apart.

Thank you!

dustinhunt78 · Mar 20, 2014

Barking Krab :

Hi, a few months ago I built my own gaming rig, and I've had problems similar to this in the past with this computer. Sometimes, for no visible reason, it just shuts down. I can usually turn it straight back on, but if it does it repetitively I make sure the wires aren't loose and it usually sorts itself out.

It is DEFINATELY not to do with temperature, I have a CPU cooler bigger than my head with lots of decent fans. Temps never go above 28 Celsius.

Off the top of my head, I have

Intel 4770k 3.5ghz Processor
MSI Z87-GD65 Gaming MOBO
16gb ram (2x8gb)
MSI GeForce GTX 780ti GPU
2tb seagate hard drive
250gb Samsung ssd drive
Corsair Platinum AX760 (can't remember actual name)
A big ass Noctua CPU cooler

So I was just gaming as usual earlier, web based game nothing performance challenging, and then it shut down. So I opened it up, made sure everything was plugged in, then turned it on again.

Everything was cool for about 5 hours, and then it shut down again. Except now it won't start up!

I've tried resitting the ram, no change, and the power button on the motherboard is on, but nothing happens when pressed.

Any help or advice would be great, but I really really don't want to have to take it apart.

Thank you!

Is the light on the motherboard red?

cisrox · Mar 20, 2014

Do you have a second powersupply to test it on? The PSU could be failing.

Barking Krab · Mar 20, 2014

It's a green light. I do not have another PSU.

Barking Krab · Mar 20, 2014

Turned the switch off at the wall and back on, computer powers up.... Any ideas why this happens?

Hello man · Mar 20, 2014

Barking Krab :

Probably a bad PSU. I would (if you can) RMA that one and get another. Corsair is great with returns.

dustinhunt78 · Mar 20, 2014

I HIGHLY doubt that your PSU is malfunctioning, as you bought the best PSU that money can buy. There is always that very slim chance that it could be malfunctioning though. I have an AX860i, so I'm familiar with the AX series. The PSU have a self-test button. When you press the self-test button, does the PSU begin to operate as it should?

Barking Krab · Mar 20, 2014

I think it would be a lot of hassle to return it, I got the entire rig on finance from Scan.co.uk. and Dustin, it's working now and I'm thankful. I shall have a look tomorrow, I have very poor lighting in my room. Thanks so much for the help guys! I'm not gonna pick a solution just yet in case it happens again.

dustinhunt78 · Mar 20, 2014

Barking Krab :

Don't hesitate to send a private message if need be. It won't be considered to be an intrusion at all.

Barking Krab · Mar 20, 2014

Thanks man

Synick · Jan 28, 2015

Barking Krab :

I'm having exactly the same problem currently. I strongly believe it's due to my AX760. Barking Krab did you ever have any problems again with your psu or is it still running fine?

Barking Krab · Jan 29, 2015

Synick :

Hi dude, it's since happened perhaps once or twice, my usual fix is just open it up and wiggle the wires around the PSU. I think the issue isn't the PSU itself but perhaps the wires going in to it. If this doesn't work, re-plug all the wires going to the PSU and this might fix the problem.

Not a very technical answer but it seems to work, however I have no idea of the reason for the random shutdowns.

Hope this helps man.

Synick · Jan 29, 2015

Barking Krab :

Thanks a lot for the reply. My AX760 for some reason only seems to have a problem turning on or suddenly cutting off after it has been switched off for a long period of time. I usually switch it off when I know I won't be at home for a while. It seems to run perfectly fine under regular use. I'll keep an eye out for random shutdowns though. If it gets worse i'll RMA it I still have a few years on my warranty. Shipping is way to costly for me here in the Caribbean otherwise I'd send it in immediately. I just wish someone was able to explain why it has a problem after being switched off for long periods.

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2 month old gaming computer shut down and won't turn on - light on mobo

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