ECC RAM compatibility with workstation MB

[The Ran]

So, I've got a new motherboard coming and I've found some memory for a decent price, however I'm not 100% sure on if it's compatible due to the terms used.

 

The board I'll be using is the Intel S5520SC. The technical specifications at ( http://download.intel.com/support/motherboards/server/s5520sc/sb/e39530010_s5520sc_tps_r1_7.pdf ) say it can support registered DIMMs using x4 or x8 DRAM with 1Gb and 2Gb technology, however there is no support for 2Gb based 2GB or 4GB DIMMs (so 1Gb based would work I assume).

 

The memory I'm wanting to use is Hynix's HMT151R7BFR4C-G7 4GB sticks, the documentation for which is here ( https://www.google.co.uk/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&uact=8&ved=0CCsQFjAB&url=https%3A%2F%2Fwww.skhynix.com%2Finc%2FpdfDownload.jsp%3Fpath%3D%2Fdatasheet%2Fpdf%2Fmodule%2Fds_1Gb_DDR3(B-ver)based_RDIMMs(Rev1.1).pdf&ei=DzBaVLn_DtXesAS40oCYBw&usg=AFQjCNGnbyfC24NnY01us6kg_ADPdhdoGg&sig2=ceIGP3-LlpFcQKWWuBlB8w&bvm=bv.78677474,d.cWc ) This says the "Organization" is 512MB x72 which would be 4Gb based, but then for "Component Composition" is says 128MBx8*36 which would be 1Gb based.

 

Can anyone confirm whether it will work? My guess would be yes, I have no idea what the x4 and x8 refer to but I notice that the component composition part also has x8, so if it's referring to that then it's also 1Gb.

[Enderman]

What CPU

[The Ran]

I wasn't aware the CPU would factor into it (apart from perhaps clock speeds). I've got two X5560s coming ( http://ark.intel.com/products/37109/Intel-Xeon-Processor-X5560-8M-Cache-2_80-GHz-6_40-GTs-Intel-QPI ).

[The Ran]

Bump. I never knew RAM limitations could be this precise and complex, it would help if manufacturers used more precise and consistent terminology.