[email protected] writes: > Hi, > > TL;DR - Has anybody either successfully used 16GB DDR3 modules on > SandyBridge, can rule it out, or has ideas about how to dig deeper? > > I recently bought 2 crucial 16GB DDR3 SODIMM modules to upgrade my > T520 (2630QM CPU) to 32 GB. As it didn't work I did some research and > found a couple of postings blaming the problem on Intel not providing > proper memory reference code (e.g. > http://forum.notebookreview.com/threads/upgrading-ram.756463/page-2) > preventing the BIOS from initializing the RAM. > > When I looked for alternative BIOSes I came across coreboot. Compiled > and installed it - works fine with 2*8GB modules. With one or two 16GB > modules I still saw the SeaBIOS info but then it crashed. Adding > memtest as a secondary payload and starting it worked, but memtest > crashes instantly when it starts testing. >
According to Sandy bridge datasheets only up to 4GB DDR3 technology is supported, which makes it possibly to use dimms with 2 ranks, with each rank having a capacity of 4GB, hence max 8GB per DIMM. This is a hardware limitation. <#secure method=pgpmime mode=sign> Kind regards -- Arthur Heymans -- coreboot mailing list: [email protected] https://www.coreboot.org/mailman/listinfo/coreboot
