Asus X99 motherboard RAM compatibility

[Lord Mirdalan]

     Greetings,

 

     I'm planning my first PC build, and I've run into an issue when it comes to RAM compatibility with the motherboard I'm eyeing. I'd like to use the Asus X99-E WS/USB 3.1, along with 32GB of Crucial RAM. When I run the compatibility checker on Crucial's website, it says that the parts are not compatible. 

 

     So, I'm confused: The motherboard RAM parameters are: DDR4, maximum of 8 DIMMs, maximum of 128GB, 2133 - 3200Mhz, Unregistered or ECC.

The RAM is DDR4, 2133Mhz, two 8-GB* sticks, unregistered.

 

*Correction: Two 16GB sticks.

 

     Where is the compatibility issue here?

 

     Thanks,

 

-Lord Mirdalan.

Edited July 11, 2017 by Lord Mirdalan

[MVPernula]

Welcome to the forums!

 

Any specific reason for you to pick the slowest and ugliest ram for X99 on the market?  

It should run fine however, I have the X99-S and had those RAM sticks with it.

Can't imagine they're not compatible.

[DrMikeNZ]

The kit that you linked is 2x16GB. At release X99 only supported up to 8GB DIMMs and 64GB total, the BIOS for X99 boards were updated later to support 16GB DIMMS (if manufacturers bothered releasing it). The compatibility checker is either outdated, or is assuming that you intend to fill all 8 slots which would exceed total supported memory on older CPU memory controllers.

[Lord Mirdalan]

     Thanks for the quick reply... 

 

     It's good to know I'm not going crazy (yet).

 

     As to why I chose this RAM, there are several reasons: The CPU I'd like to use (Intel E5-1630 V3) only supports RAM speeds up to 2133Mhz. This is not terribly uncommon in the Xeon ecosystem. As for ugly... I'm building a workstation, so appearance is not my first priority.

 

     I would, however, use RAM with a heat spreader if I could find some that is not either abominably ugly (read spiky, goofy, and glow-in-the-dark), or ridiculously expensive.  

 

     If you know of some clean-looking relatively affordable RAM with heat spreaders, I'd be happy to give it a look.

 

     And yes, I derped on the 2x8GB stick thing... I was tired.