New built X299 Taichi, won't post

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   When I turn the PSU on, motherboard lights turn on.
However when I press the power button, it turns on for less than a second and then turns off (no beep).
Already double checked, removed and placed everything again, but got the same behavior.
If I remove the 8-pin CPU power cable, then it turns on and stay on, but with the expected error code (Dr Debug) 00.
Found a lot of possible causes searching online, but couldn't find a solution...  

One thing that I tried was to remove everything, and keep just the case, PSU, mobo and CPU, both with or without the cooler. 
Would it boot (or give a different error) without the CPU cooler?

My configuration:
MOBO: ASRock X299 Taichi
Processor: Intel Core I9 7920
Case: CoolerMaster MasterCase Pro 5
PSU: Corsair HX750
Cooler: CoolerMaster MasterLiquid Pro 120

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Wladimir Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 07 Nov 2017 Location: Brazil Status: Offline Points: 9	Post Options Post Reply Quote Wladimir Report Post Thanks(0) Quote Reply Topic: New built X299 Taichi, won't post Posted: 08 Nov 2017 at 4:24am
	When I turn the PSU on, motherboard lights turn on. However when I press the power button, it turns on for less than a second and then turns off (no beep). Already double checked, removed and placed everything again, but got the same behavior. If I remove the 8-pin CPU power cable, then it turns on and stay on, but with the expected error code (Dr Debug) 00. Found a lot of possible causes searching online, but couldn't find a solution... One thing that I tried was to remove everything, and keep just the case, PSU, mobo and CPU, both with or without the cooler. Would it boot (or give a different error) without the CPU cooler? My configuration: MOBO: ASRock X299 Taichi Processor: Intel Core I9 7920 Case: CoolerMaster MasterCase Pro 5 PSU: Corsair HX750 Cooler: CoolerMaster MasterLiquid Pro 120

jman Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 28 Feb 2018 Location: Atlanta Status: Offline Points: 5	Post Options Post Reply Quote jman Report Post Thanks(0) Quote Reply Posted: 03 Mar 2018 at 6:48pm
	I just wanted to say this is my exact problem to a T. I have no idea how to solve this one. Have you had any luck since you posted?
	Regards, J