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Upgrading S5520SCR Motherboard ...rank limits?


I am upgrading an older system for graphics, Photoshop/Premiere.

Some RAM concerns; they are readily available as Dual Ranked 4x or 8x. But I can't find the motherboard limits on total ranks. ...Having trouble understanding some specs...


Am also told on other forums that although not listed as beyond DDR3 1333 capable, DDR3 1600 will work. 1600 are all that are readily available.


With twelve slots I would like to run twelve "DDR3 PC3-12800 • CL=11 • Dual Ranked • x8 based • Registered • ECC • DDR3-1600 • 1.35V • 1024Meg "


They are available as 8x or 4x, both Dual Ranked.

A bit more info: 'am still investigating all possibilities, but hope/intend to upgrade from DualE5620 2.4GHz Dual Quad processors up to 5690's.

From a nvidia FX1800 card to a GTX 980 Ti Hybrid graphics card.

And from a WD Veloci Raptor SATA HD to a 1Tb WD Blue Pc SSD

An obvious novice, any help, cautions, suggestions will be appreciated!

Thank you.

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3 Replies
Super User Retired Employee

This forum is for Intel's Desktop Board products. I am moving this post to the Server forum where it will get better mindset...


Hello larryjamescarpenter,

The Intel® Workstation Board S5520SC supports six DDR3 memory channels (three channels per processor) with two DIMM slots per channel, thus supporting up to 12 DIMMs in a two-processor configuration. Refer to Figure 15 for the Intel® Workstation Board S5520SC DIMM slots arrangement.

Please take into consideration the Supported Memory specifications:

Intel® Workstation Board S5520SC supports up to 12 DDR3 DIMMs with 1.5 V and a maximum of 192 GB memory capacity.

Intel® Workstation Board S5520SC supports Registered DDR3 DIMMs (RDIMMs), and ECC Unbuffered DDR3 DIMMs (UDIMMs).

Mixing of RDIMMs and UDIMMs is not supported.

Mixing memory type, size, speed and/or rank on this platform has not been validated and is not supported

Mixing memory vendors is not supported on this platform by Intel " Non-ECC memory is not supported and has not been validated in a server environment.

Intel® Workstation Board S5520SC supports the following DIMM and DRAM technologies: " RDIMMs: – Single-, Dual-, and Quad-Rank – x 4 or x8 DRAM with 1 Gb and 2 Gb technology - no support for 2 Gb DRAM based 2 GB or 4 GB RDIMMs – DDR3 1333 (Single- and Dual-Rank only), DDR3 1066, and DDR3 800 " UDIMMs: – Single- and Dual-Rank – x8 DRAM with 1 Gb or 2 Gb technology – DDR3 1333, DDR3 1066, and DDR3 800. Intel® Xeon® Processor X5690 (12M Cache, 3.46 GHz, 6.40 GT/s Intel® QPI) is compatible with your board.

Note:Upgrading from Mechanical disk to SSD will definitely improve speed on Read/Write jobs. Updating your graphics card will also improve the performance on your system.

For a more personalized support in regards to your inquiry you could contact us directly at Contact Support

Best regards,

Caesar B.


Hello larryjamescarpenter ,

Is there anything else we could help you with regarding your S5520SCR Motherboard Rank Limits?


Caesar B.