Pc wont boot unless I remove at least one slot of RAM

Aug 3, 2018
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Hi peepz and thank you if you bother to read.

My pc parts were:
CPU: i5 4690K @ 4.5 with stable OC for the past 2/3 years
Cooler: Corsair h100i
MB: MSI z97x Gaming 3
RAM: 4x4GB Ripjaws 1800mHz
GPU: MSI gtx 970
PSU: xfx xtr 650w gold+

And lately I started some video editing with some effects in the adobe cloud service and after some stabilization and color grading this beast started to struggle and although i just started some youtube as hobby I started to strugle to produce content after spending time filming wish I enjoy but dragging into editing when I have a FT job already.

I then decided to update my pc to the 4790K (bought used on ebay) and bought the sapphire nitro+ vega 64 in order to transform it into Hackintosh and start using FCPX which since im starting to learn NLEs I figured FCPX would be more user friendly and a lot more faster to edit and export.

Before I did this and I am currently waiting for my other ssd to arrive and have a boot drive for MacOS, my new hardware is in place and I currently have this issue:

My computer only boots if I remove the RAM with either being 1 slot or the 4 of them and doesnt matter which one is.
If I restart, the computer restart with no issues but If i shut down and try to turn on it wont boot. Black screen with no output for video or keyboard lights. Everything turns on, LEDs of fans, gpu, cooler, everything runs but the motherboard doesnt post and nothing comes out of it until ram is removed and everything turns on smoothly.

Troubleshooting done so far:

Without shutting computer down I was able to OC my new i7 4790K to 4.6gHz with vcore @ 1.25 with aida65 for 5h without any issues and no problems while editing premier nor gaming. This tells me that the PSU is not getting in trouble when booting if was able to handle a stress test on CPU overclocked for a few hours and no need to reboot nor shut down.

Playing witcher 3 was fine but was 1080p so I wasnt maxing the GPU either so I ran heaven benchmark for the full segment and was able to complete it at ultra with the gpu @ 100% for the full test and nothing happened.

Memtest performed and doesnt show any problems with my RAM sticks. Still going strong.

Changed to my previous cpu and gpu and the problems persists.

What else I have done on the system:
In order to prepare the system for MacOS i have combined the 2 partitions of my Windows SSD to one and changed the partition type from MBR to GPT in order to set BIOS into UEFI instead of legacy to make MacOS instal easier and not problems there.

When I shut the system down, it seems that is takes a but longer then normal with everything turning off (keyboard light, video signal) and the pc lights and fans continue for a few seconds more until it turns off and then I cant boot which lets me believe this is an issue with windows.

I am able to do a fresh install but i tried to keep the files but gives me an error so it cant refresh the windows.

I am also able to do a clean install through and USB boot drive but I have loads of files (mainly video) that I really dont want to loose so in order to do that I need to make sure is windows problem and not hardware.

Sorry for this long thread and hopefully someone will be able to assist me with this one

Thanks
 
Solution


Try this
Go to Settings->System->Power & Sleep
On the right, click the 'Additional power settings' link
On the left, click on 'Choose what the power button do'
Click on 'Change settings that are currently unavailable' link.
Uncheck 'Turn on fast startup (recommended)' then click 'Save changes' button.
Shutdown the computer (do not reboot), wait a minute then turn it back on.

If you reset the BIOS to default and clear the OCed CPU does the issue goes away?


Try this
Go to Settings->System->Power & Sleep
On the right, click the 'Additional power settings' link
On the left, click on 'Choose what the power button do'
Click on 'Change settings that are currently unavailable' link.
Uncheck 'Turn on fast startup (recommended)' then click 'Save changes' button.
Shutdown the computer (do not reboot), wait a minute then turn it back on.

If you reset the BIOS to default and clear the OCed CPU does the issue goes away?
 
Solution