The strange and unusual Crucial CT204864BD160B 16GB DDR3 Non-ECC UDIMM
The strange and unusual Crucial CT204864BD160B 16GB DDR3 Non-ECC UDIMM
Chose to install these in a Broadwell 5775C setup and was pleasantly surprised by the boot. Initially doubted compatibility, especially for Haswell, so I added an 8GB module, bringing the total to 48GB. The memory controller seems to detect 48GB, but only supports 32GB (left column). This matches Intel’s claim that 32GB is the upper limit for this chipset. I’m puzzled about the purpose of these dimming modules—since they restrict memory to 32GB regardless, why not just use four 8GB sticks? It would make sense if you had limited RAM and only a couple of dimming ports, but that combination feels unusual. Overall, it’s just a quick chat with MoistCr1TiKaL about it.
It might be possible to run a Xeon E5-2600 V2 series or a 4th generation Extreme edition CPU on a consumer motherboard lacking ECC support. The Xeon could handle up to 768GB of RAM, while the Extreme edition CPUs reached a maximum of 64GB as listed on Intel's website.
ITX is the only board I've encountered that fits four SODIMMs, but full-size DIMMs are limited to two slots. To reach a 32GB capacity you'd have to use two 16GB modules.
It seems you're recalling a past technology from the DDR3 time. That tech was quite different from what we use today!
Mini ITX was created in 2001 and gained more attention recently. For the SFF community there have always been specialized projects, and many classic green boards exist for enterprise embedded systems. ASRock produced HEDT ITX boards, but only for X99 and X299 models running DDR4. A solid range of mainstream DDR3 ITX boards is available, mainly through ASUS and ASRock websites.