Why won't Z10PE-D16 WS support 128GB DDR4 2400 MHz ECC?

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Roger_antenna_designer

Commendable
Jul 8, 2016
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We have the Z10PE-D16 WS with two Xeon E5-2643 V4 CPU's. Whenever we plug in all 128 GB DDR4 2400 MHz ECC (Samsung M393A2K40BB1-CRC) it won't boot. However, if we only use 64 GB (32 GB per CPU) it works OK. This RAM was specified on the ASUS QVL for this MB.
 
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Z10PE-D16 WS
Specification Summery:
16 x DIMM, Max. 1024GB, DDR4 1866*/2400/2133/1600 MHz RDIMM, LR-DIMM Memory *1
Quad Channel Memory Architecture
*1 2133MT/s@1DPC only

The manual makes no references to running memory over 2133MHz. It also does repeat the reference to "2133MT/s@1DPC" only.

Manufacturer Reference M393A2K40BB1-CRC
Capacity 16GB
Name PC4-21300R
Short Form 16GB


Quad Channel Memory Architecture
16GB * 4 = 64

The reference to DPC is "DIMMs per Channel". It appears you would need to configure the Memory Clock option in the BIOS to run at [1866] to use 2DPC.
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Calvin7

Titan
Feb 19, 2013
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Z10PE-D16 WS
Specification Summery:
16 x DIMM, Max. 1024GB, DDR4 1866*/2400/2133/1600 MHz RDIMM, LR-DIMM Memory *1
Quad Channel Memory Architecture
*1 2133MT/s@1DPC only

The manual makes no references to running memory over 2133MHz. It also does repeat the reference to "2133MT/s@1DPC" only.

Manufacturer Reference M393A2K40BB1-CRC
Capacity 16GB
Name PC4-21300R
Short Form 16GB


Quad Channel Memory Architecture
16GB * 4 = 64

The reference to DPC is "DIMMs per Channel". It appears you would need to configure the Memory Clock option in the BIOS to run at [1866] to use 2DPC.
 
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