Need input from someone smarter than me on new Z390i build.
I hope that I am posting in the correct location. Please forgive me if I am not.
This is the most frustrating build that I have ever done.
I think I am going to need the assist of some card carrying smart guys.
This may be a little long. I apologize for that. But I feel like I have tried just about everything and it can only help for you to know what I have done so far.
My build is...
GIGABYTE Z390 I AORUS PRO WiFi (New)
G-Skill 32GB DDR4 3000 Ram (New)
GTX 1050 Video Card (Very little use and pulled from prior PC)
I5-9600k Coffee Lake CPU (New)
Cooler Master Hyper 212 Evo Heatsync (Very little use and pulled from prior PC)
Cooler Master N200 Case (New)
Crucial MX500 500GB 3D NAND SATA M.2 (New)
Seasonic 650Watt Power Supply (Pulled from prior PC)
On my first attempt at this build, I could not get the PC to do anything at all. I had no lights, no fan or any other response.
I pulled the ram, one stick at a time.
I reseated the video card and Crucial Hard Drive.....using the HDMI port on the motherboard.
I reseated the power connections and also all fan connections...confirming that they are all in the correct locations.
I pulled all of the connections to the board and used a new power switch that I have not yet installed on another PC.
I even bypassed all of the switches and jumpered the power pins with a screwdriver.
I bypassed the the UPS and even swapped out the power cable.
I pulled the heat-sync and re-seated the CPU.
I pulled the board out of the case entirely to see if it could be grounding somewhere that I could not see.
I jumpered the Power supply....even though it was working just hours before...to confirm that it would still spin up a fan. This it did.
Although I did prove that the power supply was good, nothing else that I did got the new build to respond in any way.
My conclusion was that the motherboard was bad and I ordered an RMA.
When I got the new board, I rebuilt the PC and started all over again.
This time it will power up. But I get nothing on the screen and PC will just go into boot loops.
So I started the process of isolating again.
I repeated all of the troubleshooting steps above.
And since I found it hard to believe that I got 2 bad motherboards in a row, I tried a few more steps to isolate.
I put taller risers on the board so that I could confirm that nothing on the bottom of the board was shorting out on the case.
I pulled an 850 watt Seasonic Power Supply from a working PC and confirmed that I was still getting the same problem.
I pulled some ram from another PC to confirm that I possibly did not get 2 bad sticks of ram even though they were new.
The ram that I tested with was Micron Ballistix Sport LT 16GB Kit (8GBx2) DDR4 2666.
I pulled everything except the testing power supply, testing ram and HDMI cable to the monitor. I had the HDMI cable plugged into the HDMI input on the motherboard.
I had no fans beyond the CPU fan plugged in and no hard drive. I simply wanted to see if I could get to the bios and stop the boot loops.
This time, no matter what I did, I never got a picture on the monitor and the PC stayed in boot loops every 20-30 seconds.
I am left with the conclusion that either I got a 2nd bad motherboard....or possibly the new Intel i5 CPU is bad?
I have simply never heard of a CPU being bad out of the box and that is an expensive thing to re-buy as a test.
Am I missing something? How likely would you say that it is the CPU and not a 2nd bad motherboard?
Is there anything else that I can...or should be checking?
Thanks for any input.