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Asus Prime AII X299 not posting - New build

M@tree2

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Hi all, so a little background, brand new PSU 1200W Master V Platinum, I9-10940X, Asus Prime A II, 64GB G Skill 3600 CL16, populated in 4 channels, Fans and everything run fine when I bypass the PSU.

Issues I am experiencing include:
Boards complete refusal to even make it to post, RGB comes on, does not go any further than that.

Solutions I have tried:
New PSU, tried my old 1000W Gold PSU.
Changed RAM to a different 64GB Kit
Removed RTX2060S
Removed all RAM.
Cleared CMOS, reset CMOS jumper.

Have flashed new bios and it takes that just fine, no change thereafter, still refuses to boot up.
Note: All components are new.

Getting another X299 board tomorrow, will see if that does same thing, will update.

Any help would be much appreciated.
Do suspect the obvious, but thought I would ask for advice first.
 
CPU power plugged in?

Probably stupid question...
 
Have you tried running with a single stick of RAM?
 
Have you tried switching to Ryzen? :p

Sorry, but I am stumped. Most probably a board issue. Only way to be sure is to test with another board.

Have you tested with different GPUs? What's your storage configuration? Sometimes NVME SSD's can act up...
 
Have you tried switching to Ryzen? :p

Sorry, but I am stumped. Most probably a board issue. Only way to be sure is to test with another board.

Have you tested with different GPUs? What's your storage configuration? Sometimes NVME SSD's can act up...
Didn't even get to putting storage in, brand new Palit RTX2060S.

Might be a badly placed bios chip.
 
Where did you buy the board? Hopefully a place with good after sales support...


What board will you be replacing it with?
 
CPU perhaps. Remove from socket and power on the system, if the fans etc come on, then you can confirm its the CPU.
 
CPU perhaps. Remove from socket and power on the system, if the fans etc come on, then you can confirm its the CPU.
Wouldn't it show POST codes with a faulty CPU?
 
Wouldn't it show POST codes with a faulty CPU?
Not necessarily. The specific fault in the CPU could be preventing 'power good' signal. I have at least two dead X299 chips that do exactly this. Sadly it's not always "00" which also means dead CPU of course.

Hopefully, CPU just needs re seat.
 
Not necessarily. The specific fault in the CPU could be preventing 'power good' signal. I have at least two dead X299 chips that do exactly this. Sadly it's not always "00" which also means dead CPU of course.

Hopefully, CPU just needs re seat.

Tried different processor, same thing.

Tried new mobo and new processor, same thing.
 
2 boards and 2 processors suspect? cannot possibly be.

I will be checking this thread to see outcome.
 
Exact same thing on new board, bios updated using bios flashback.
Plug it all in, press board power button and hear a small click on psu, then nothing.
 
Doe
does it give you any codes on the board?
Doesn't even get to that point.
Point blank refuses to turn on.
RGB comes on, but press the power buttton and there's no life.

2 boards, same issues, 2 processors, exact same issue.
 
Is the new board and CPU confirmed to be working? Maybe 2 dead in a row, but highly unlikely.

Maybe check for an older CPU and see if it works.
 
Did you buy or borrow the new ones you just tested?
 
Just ignore this if its not relevant. I once had a corsair cx600 psu(actually still have it in storage) but it had the same issue aswell. when I took the psu in for testing the techie told me that the signal from the psu to the mobo is weak and the delay is to long. the only way I could get it to work was to power the system on and then when live wiggle the 24pin in and out on the socket of the board aka jumpstart.!!!(PLEASE DONT DO THIS)!!!! but maybe the original mobo is faulty and it damaged both your PSU'S so switching between mobos and CPU's heals the same results......get your PSU's tested but those testers are cheap if you maybe want to buy one and just keep it afterwards.
 
Damn... the chances of 2 dead boards in a row....
 

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