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Gaming Rig - No Longer Boots. Was fine yesterday

L3OUGH

By L3OUGH
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L3OUGH

L3OUGH

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Posted (edited)

Hi all,

 

My PC all of a sudden out of no where no longer posts/boots Windows. 2 weeks ago I rebuilt my machine into a new case and also fitted a new PSU at the same time, seeing as I was stripping down I though it was a perfect opportunity. I rebuilt everything and the machine worked flawlessly for 2 weeks, then I powered it on yesterday after work, the PC powered on as normal BUT didn't post or load windows.

 

All the fans came on, my GPU light came on, CPU pump light came on, keyboard lights came on but no mouse lights and screens just showed no signal then went to sleep.I rebooted, exactly the same thing. No splash screen or post boot beep etc. I'll list my specs below and then i'll explain what troubleshooting I've already done.

 

Specs:

CPU: i5 4670k - no overclockCPU

Cooler: Corsair H100i GTX

Motherboard: ASUS Z97-k

RAM: Corsair Vengeance 16GB @ 1600MHz

GPU: MSI TwinFrozr GTX970

Storage: 1x Samsung 840 120GB SSD - OS Disk

1x Crucial MX300 750GB SSD - Storage

2x 1TB HDD - Storage

PSU: EVGA SuperNova G2 650W

Case: NZXT H440

 

What I've already tried:

Booting with no USB devices

Booting with no USB, GPU

Booting with no USB, GPU, 1x RAM Stick

Booting with no USB, GPU, 1x RAM, no SATA's connected to board

Booting with no RAM causes the board to beep and tell me about no RAM (good sign, I think)

Reseating GPU + RAM

Reset BIOS using jumper and battery out for 5/10 seconds.

 

Nothing changed after doing all of above. No matter what I did the PC behaved the same. Powers on, fans and lights come on but no POST beep, splash screen.Only thing I'm yet to do that's simple is leave the CMOS battery out for a good 30mins before putting it back. If that then also fails, I'll take the backside off and make sure nothing like board stand offs have moved and are causing a short etc on the board.

 

If both of those also fail it will be time to take the PC to bits again :( Anyone got any idea's before I maybe start taking all components out the case? Any help or advice will be greatly received.

Edited by L3OUGH
L3OUGH

L3OUGH

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Out of interest, have you tried the original PSU? Since that appears to be the only new computer component, worth giving that a try.

That's my next thing to try when I get home tonight. I did think it could be that, but seeing as it had been solid for 2 weeks and is a far superior PSU than the one I took out (Corsair CX600M) I sure as hell hope it isn't that.

 

It also provides power to everything which also makes me think it's not that. But I maybe wrong!

Boredguy

Boredguy

Posted
Posted

I'd say PSU based on same issues previously. Although it might be a higher wattage than the Corsair, it might not be to the same quality.

I went from a "cheap" 850w PSU to a corsair 750w and my PC booted happily every time.

L3OUGH

L3OUGH

Posted
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I'd say PSU based on same issues previously. Although it might be a higher wattage than the Corsair, it might not be to the same quality.

I went from a "cheap" 850w PSU to a corsair 750w and my PC booted happily every time.

 

I changed from a Corsair because the series the PSU was part of (CX) was poorly received by everyone. People said it was built poorly, the capacitors were rubbish. Hence why I went with the EVGA SuperNova G2 as it was very highly rated and reviews were giving solid high 4's some even 5 etc.

L3OUGH

L3OUGH

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Might be the PSU, seams the logical thing.

Id also whip out the memory and reseat it, I have known that cause such things.

 

Already tried that. A few times, just to make sure haha.

DJ-1701

DJ-1701

Posted
Posted
The only experience I have had with EVGA hardware was a GeForce graphics card a few years ago, which appeared to work fine... and the output went haywire with pink lines dancing on the screen. Which put me off them. Issues can happen with any product from any company though of course.
L3OUGH

L3OUGH

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Have you tried the "hard reset" trick? Unplug the PC hold the power button for 20 seconds and then plug back in and try and boot?

I did, briefly, maybe not a whole 20 seconds though. Worth a shot later though, struggling to think what's caused this!

Sephiroth

Sephiroth

Posted
Posted (edited)

In my experience, what you've described sounds like either a dead processor or motherboard (or both), usually caused by a faulty PSU/short circuit/power surge. In this case, I hope for your sake I'm wrong. Good luck :)

 

If you have a spare processor you can try, that may work for you.

Edited by Sephiroth
more info
GuyJD

GuyJD

Posted
Posted
My first instinct would be the RAM or CPU, I'd start by swapping out the RAM for some that I know to be good, it could be the Motherboard but as you say it is a good sign that it beeped to tell you there was no RAM.
L3OUGH

L3OUGH

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Well, after getting home from work I have continued troubleshooting. The 'hard reset' holding power button down for 20 seconds trick didn't work, tried with original PSU and that made no difference. Still firing up with no beep and no display.

 

I then stripped the whole system down and remade it outside the case using a screwdriver to jump start it. Also made no difference. So now I have just reseated the CPU and will try booting it again after I've eaten but I'm not holding out for it.

 

So it appears I'm with either a fried board or CPU or maybe both. Which leaves me thinking, what caused it? If it was the PSU how can I test it/prove it caused it before I spend a small fortune buying new parts....?

L3OUGH

L3OUGH

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Well I can confirm the CPU reseat didn't work. Still just firing up with no POST beep. So I've got to decide how to proceed.

 

I tested the PSU with the tester included with the EVGA unit that connects to the 24 pin main board connector and it fired up the PSU fan as it should of so thats appearing to be working correctly. I'm not sure if I buy another Z97 board and see if it's just the board or not take the risk of doing that and finding out the CPU is gone as well and just bite the bullet and put the money towards LGA1151 board, CPU and DDR4 ram.

L3OUGH

L3OUGH

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Yes and yes I've tried using the on board graphics! :)

Was no help. I've pretty much left it to die peacefully now. I tried some brand new DDR3 ram with it last night and that also made no difference.

L3OUGH

L3OUGH

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Yeah I'll have a look later. Hoping the CPU is still okay if I do that though! Tested the PSU with a tester last night and all the voltages look fine so I don't think the PSU is to blame.
L3OUGH

L3OUGH

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It no longer beeps with no RAM in it either. Something has certainly failed. Looking to get the CPU in another 1150 board to see if it's just the board or if it's board and CPU. Think ill be staying away from ASUS boards unless they are high end ones, this is the second one to go funky.
sted

sted

Posted
Posted
It no longer beeps with no RAM in it either. Something has certainly failed. Looking to get the CPU in another 1150 board to see if it's just the board or if it's board and CPU. Think ill be staying away from ASUS boards unless they are high end ones, this is the second one to go funky.

these days i wouldnt touch asus stuff the last laptops from them ive used were awful about 1/3 wont power on either on battery or mains and you cant even upgrade the ram i honestly think they bare just peddling cheap stuff trading on a rep they used to have

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