Boot loop on anything more than 1 RAM

[Selman Tabet]

Hi,

I've just finished my Threadripper build, tried to boot it up on 4, 3, 2 RAM sticks and it never worked.
I then plugged one RAM stick on the first slot (A1 channel) and it POSTed just fine. I did clear CMOS for the higher module counts but none worked.

Specs:
CPU: AMD Ryzen Threadripper 1950X
Mobo: ASUS ROG ZENITH EXTREME X399
AIO Cooler: NZXT Kraken X62
RAM: 4x 8GB G.Skill DDR4 TridentZ RGB memory (rated high at 3866MHz but underclocked to the recommended 2133MHz, totally expected it).

I need help from anyone with experience here, much appreciated.

Regards.

 

[BFG-9000]

Did you try setting the rated 1.35v when booting from one stick, before adding the others?

 

[Selman Tabet]

Did you try setting the rated 1.35v when booting from one stick, before adding the others?

Nope, but managed to get it to POST successfully by re-arranging the RAM sticks, weird tbh. Thanks for your help though!

 

[Kasper Jorgensen]

Did you check your RAM is on the QVL list?
http://dlcdnet.asus.com/pub/ASUS/mb/socketTR4/ROG_ZENITH_EXTREME/ROG_Zenith_Extreme_Memory_QVL_2133-3466_20171011.pdf?_ga=2.207243283.1083341469.1507914334-53625888.1507581663

I don't see any 3866MHz model on that list.

 

[Selman Tabet]

Did you check your RAM is on the QVL list?
http://dlcdnet.asus.com/pub/ASUS/mb/socketTR4/ROG_ZENITH_EXTREME/ROG_Zenith_Extreme_Memory_QVL_2133-3466_20171011.pdf?_ga=2.207243283.1083341469.1507914334-53625888.1507581663

I don't see any 3866MHz model on that list.

Yeah, TridentZ RGBs are there, but mine has higher frequency rate (Because I was going for a Skylake-X build initially), I did expect the RAM modules to be underclocked after all.

 

[Kasper Jorgensen]

Not sure that is your problem but your RAM is not on the QVL list. It's not enough to be the same brand, you need the exact same model number.