Do I have a broken mobo?

[tomwright2]

Hi all, I was hoping you could help me out.

Today the parts for my new PC arrived, and they are as follows:

CPU: i7 7700k
GPU: EVGA Geforce GTX 1080ti
Ram: Corsair vengeance 3000
Mobo: Strix H270F Gaming

I can't get the system to post, not even once!

I had everything plugged in and started it up. I hear the system turn on, the mobo lights up, the gpu lights up, the ram lights up and the CPU fan starts spinning, but the 2 chasis fans do not start spinning.
It just stays like this, with no POST beep and nothing appearing on my monitor.

I have tried the following in order:

1. All components plugged in
2. Monitors, keyboards, external components unplugged
3. Removed ram
4. Removed HDD's and SSD's
5. Removed GPU
6. Re-seated CPU and checked pins
7. Reset cmos by removing battery

Each test had the exact same outcome, and that is all of the mobo lights on and no POST beep. Every time I tested it I left it for approx 60 seconds until turning it off by holding the power button, unplugging the power and moving onto the next step.

Any ideas on what I can try next?

Thanks,
Tom

 

[Hannah_19]

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[Faike]

^^ That was me on the wrong account trying to delete it
Okay, so I would definitely check your fan ports and make sure everything is plugged in the right place.
It might even be to your benefit to plug your chasis fans into your cpu fans.
Have you tried turning it on without the GPU?
Have you tried turning it on with THE OLD GPU ASSOCIATED WITH THAT HARD DRIVE?
If not then the older GPU drivers are preventing bootup.
First boot from the HDD only, unplug all but the 1 HDD.
Remove the new GPU and plug in the OLD gpu.
Then turn it on. After resetting bios by shorting the pins.

Its not your bios, its not your ram, its not your CPU. Its most likely this. You need to use DDU and remove the old drivers off your drive. Especially if this was a BIG update you might want to get another drive and reinstall windows fresh using your old build.
DDU is a big fix for this, just good it. But try this first and see if it works.

 

[tomwright2]

Thanks a lot for your great suggestions. I was thinking along the lines of bad driver as well since the HDD I was using used to be in a machine with an AMD card.

However! After a long night of fiddling around with many things, I noticed that the CPU power supply had come loose, presumably whilst rearranging cables to keep them out of the way. After fixing it in properly everything started working as expected.

Simple solution to a silly problem that should never have occurred. Regardless, thanks a lot for your help.

 

[Faike]

Thanks a lot for your great suggestions. I was thinking along the lines of bad driver as well since the HDD I was using used to be in a machine with an AMD card.

However! After a long night of fiddling around with many things, I noticed that the CPU power supply had come loose, presumably whilst rearranging cables to keep them out of the way. After fixing it in properly everything started working as expected.

Simple solution to a silly problem that should never have occurred. Regardless, thanks a lot for your help.

Interesting that after all your resetting twice that that's what happened to be the issue. Usually when the CPU is lose it boots up and then slows down xD. Weird.

BTW easier way to reset the bios is just to short the two pins usually under the the right side of the board near where the USB 1 and USB 2 plugs are, usually to the right under of your graphics card. You can use like a screw driver to do this and tap it for a second (unplugged) and bam it's shorted and reset. No need to remove the battery.