occuping 4th ram slot on motherboard causes pc not to post

[yuv41]

 

I bought a new NZXT H500i case couple of days ago and had to transfer my hardware to it, i did and it all was working fine until a day ago when my PC randomly frooze and every USB stopped getting power. I turned off my PC and booted it again, but it won't post anything. the fans we're spinning RGB lights were on but the keyboard,mouse & display wouldn't turn on.

I took the power cord out and draining the remaining power in the hardware then it turned on. I thought it was a one time weird thing. 

but now while playing csgo it happened again. i tried to do the same thing and it worked but then the pc froze again after 20 seconds and after that i couldn't get it to boot again.

I googled some and started taking out some component, first tried to remove the GPU and boot the pc using the iGpu didnt help.

Then i took 3 of the ram sticks and booted it with one and it worked.

then i started putted the ram back 1 by 1 and when using all of the ram slots the pc wont boot. i checked if it was the particular stick but it wasn't its like when using the 4th slot the motherboard just won't post.

do i RMA or there's something i can try doing about it?

 

Thanks in advance.

[yuv41]

update-

i managed to boot my pc with all the rams in it. this s**t is getting weird.

I don't wanna get my pc frozen again. does anyone has some ideas how to stop it from happening again?

those are my specs - 

CPU
    Intel Core i7 @ 3.20GHz    40 °C
    Coffee Lake 14nm Technology
RAM
    16.0GB Dual-Channel Unknown @ 1197MHz (15-15-15-35)
Motherboard
    ASUSTeK COMPUTER INC. ROG STRIX B360-G GAMING (LGA1151)    42 °C
Graphics
    Y25f (1920x1080@144Hz)
    8192MB ATI Radeon RX 580 Series (ASUStek Computer Inc)    53 °C
Storage
    465GB Samsung SSD 860 EVO M.2 500GB (SATA (SSD))    44 °C
    931GB Western Digital WDC WD10EZEX-08WN4A0 (SATA )    36 °C
    111GB KINGSTON SV300S37A120G (SATA-2 (SSD))    40 °C
    4MB AsusTek ROG RYUO USB Device (USB )

[rEkmAInc1csBnlM6C85H]

When you transferred everything over, what was removed and then reinstalled on the motherboard?

Edited September 19, 2019 by Andrew 1337
Changed grammar for more clear question.

[yuv41]

6 minutes ago, Andrew 1337 said:

When you transferred everything over, what was removed and then reinstalled on the motherboard?

Air cooler was replaced with a new AIO, and the gpu was taken out and put back in. and well the motherboard itself ofc

[rEkmAInc1csBnlM6C85H]

3 minutes ago, yuv41 said:

Air cooler was replaced with a new AIO, and the gpu was taken out and put back in. and well the motherboard itself ofc

From my understanding of current Intel CPU's the RAM controller is on the CPU itself.

 

A dead or sketch memory channel can be:

• Dust where it should not be
• Damaged motherboard
• Damaged CPU socket
• Damaged CPU
• Damaged Ram Slots
• Bad CPU mount
• Bad cooler mount (Almost never)

If the motherboard visually looks good, aka not warped or anything;

 

I would at this point suggest remounting the CPU and cooler, but also checking the LGA pins (for bent ones), and socket screws (for loose ones). In addition to blowing the dust out of everything before reinstalling any RAM. (DO NOT BLOW THE LGA PINS)

 

If that dose not work you can use...

https://www.memtest86.com/

...to check RAM sticks one at a time to verify all of them are for sure good.

 

Once all RAM is verified as known good we can go from there.

(I had ASUS's MEMOK boot 2/6 marginal STICKS on an old 1366 system and it caused amassing issues that made no sense)