New i7 build not booting - DRAM LED

[OgWasabiGrin]

Apologies for the long post but I am at my wits end with this build and i feel like it's something simple I'm missing. I cannot get this computer to boot and is giving me the DRAM LED no matter what i do.

 First off the specs:

Z370 MSI M5 gaming mobo

I7 8700k

Corsair 3200 8gb x 2 RAM

Corsair h100i v2 cooler

EVGA 750w PSU

GTX 1060 6gb GPU (not installed atm)

 

First day i built it, it fired up fine. After a night of downloading games i played for the first time and worked really well for a few hours. Then it crashed, giving me the dram led and an error code. The next day it worked for another few hours and crashed again. After trying to troubleshoot it and not working with any RAM configuration i sent back the motherboard. New one does the same thing but with no error codes (dont remember the original codes). So i boight new RAM thats on their list of combatible RAM and its still giving me the DRAM LED.

I've tried switching the RAM to different slots. only using one stick. Using working RAM from another comp. Loosing and tightening the cooler. Taking the cooler off completely and unplugging it. Checking for bent CPU pins. Taking the battery out to reset the CMOS. Nothing works and it wont post. Im starting to think its the CPU.

Anyone have any ideas? 

[OgWasabiGrin]

Every set of RAM I've tried are rated at 3200 mhz. 

[OgWasabiGrin]

Additional note: the LEDs above the actual RAM slots are lit up so its detecting the RAM in some way i think.

[Hugs12343]

Can you get into the UEFI?

 

Try running the ram at 2133MHz or 2400MHz.

Try different slots for each ram stick

[OgWasabiGrin]

Unfortunately im stuck at a black screen and cant get the system to post to get any further information. Ive tried every RAM slot configuration i can.

[OgWasabiGrin]

So after plugging the cpu power into the cpu #2 on the PSU its booting and i can get into the BIOS. Not sure what changed there.

[0x1e]

4 hours ago, OgWasabiGrin said:

So after plugging the cpu power into the cpu #2 on the PSU its booting and i can get into the BIOS. Not sure what changed there.

It could be a PSU problem.
You have two CPU power ports on the PSU, with two different cables? Ones normally an 8 pin and the other being a 4+4.

Keep using the second one, with the other cable. If all works fine then I would replace the PSU after a couple of days.

[OgWasabiGrin]

Its a EVGA 750wGQ which is modular so you only plug in the pieces of the harness you need and leave the other slots empty for future use. Both ports are 8 pins but the one that didnt work is raised up further. Ill post a pic of it to explain better. But I plugged everything in, set my RAM speed and was up and gaming perfectly last night.