motherboard just won't read 4 DDR4 RAM

[amuroray]

I had a Core i5 7600K on a Aorus Z270X Gaming K7 with 16GB of 2 X8GB corsair vengeance RGB PRO kit 

GPU Radeon RX 580 8GB  

Boot from and Samsung NVME 256 GB SDD

recently bought another kit of 2 x8GB same corsair vengeance ddr4 with same clock speed of 2666Mhz but i just couldn't get it to work.

it will not post.

after checking thoroughly i nothing i have a couple of bent pin on my cpu socket. i attempt to get it fixed but gave up,

I go out and bought another brand new mobo ASROCK X270 Extreme4 to my suprise it still won't post.. 

 

i attempted with 2 x 8GB it works perfectly fine... 

 

Please help! 

[emosun]

do all 4 sticks match?

even though ddr4 doesn't have to match you can still run into an unknown compatibility issue that nobody else has had yet simply from using this specific combination.

[amuroray]

all are the are same corsair vengeance ddr 4 8GB ram 2666mhz 

 

different is they are not 4 x8 kit but 2x8kit  2 unit. if that make sense... 

 

if i take one of each set and plug them in it works as well... 

[emosun]

hmm , maybe it just wants a bios reset because the ram amount changed , and or a newer bios version might help.

if each stick you have works alone in the machine that would be also good to know and test

[amuroray]

i did.. bios all up to date and cmos reset i lost count... how many times...  i spend my whole weekend tinkering on this... with little success... 

 

i tryied turning xmp profile 1 on as well as on AUTO.. nothing seem to help... 

 

make me wonder since went ram installation become so difficult... 

[emosun]

4 minutes ago, amuroray said:

make me wonder since went ram installation become so difficult... 

let me know when you are pressing individual chips into a 35 year old machine and then you'll have something to complain about. lol

Does each stick alone work in the machine or not?

[amuroray]

NO.. that something weird... but i am not sure with the asrock, i never try.. my intention is going up.. and one occasion i manage to get it to boot with 3 rams...

 

but as soon i stick the fouth it stop posting again.. and it also make the 3rd ram.. not working as well.. now i am back with 2 stick talking to you right now.. 

[Constantin]

You should RMA the new RAM 

[amuroray]

I am such an idiot, troubleshooting all the shit in my pc but never suspect the ram, and after i did some intensive ram swapping i finally notice one of the ram in the new kit i bought is faulty... 

 

After i got it replace everything works.. damn.. should have figure it out sooner.