DL120 G6 Memory issue

[salem2k]

So I bought new ram for my DL120 G6, but with it installed it does not boot. I thought it might be incompatible so I bought another batch of memory but same result.

I get no display output and no keyboard input, the fans are spinning at pre-boot rpm and iLO says everythings ok.

CPU: Intel Xeon x3740

Previous RAM (if I put it in it works fine) : 4x 2GB-2Rx8-10600E DDR3

New RAM 1: 4x 4GB-2Rx4-10600R DDR3 (Lenovo)

New RAM 2: 4x 4GB-2Rx4-8500R DDR3 (Hynix)

P.S.: It will not boot with only 2 sticks installed either.

[Thomas Martin]

As described in the Quickspecs, only x8 RAM modules are supported.

Unbuffered with ECC DIMMs (UDIMM) up to 4 modules

HP 1GB (1x1GB) Single Rank x8 PC3-10600 (DDR3-1333) Unbuffered CAS-9 Memory Kit 500668-B21

HP 2GB (1x2GB) Dual Rank x8 PC3-10600 (DDR3-1333) Unbuffered CAS-9 Memory Kit 500670-B21

HP 4GB (1x4GB) Dual Rank x8 PC3-10600 (DDR3-1333) Unbuffered CAS-9 Memory Kit 500672-B21

Registered DIMMs (RDIMM) up to 6 modules
HP 2GB (1x2GB) Dual Rank x8 PC3-10600 (DDR3-1333) Registered CAS-9 Memory Kit 500656-B21

HP 4GB (1x4GB) Quad Rank x8 PC3-8500 (DDR3-1066) Registered CAS-7 Low Power Memory Kit 500660-B21

https://h20195.www2.hpe.com/v2/GetPDF.aspx/c04123273.pdf

Only up to 16GB RAM is supported.

[salem2k]

But it says:

Up to 16GB memory is available with the optional installation of 4 x 4GB PC3-8500R RDIMM DDR3 DIMM memory kits, operating at 1066 MHz when fully populated at 2 DIMMs per Channel in 4 slots.

and:

256MB technology, x4 DRAM on UDIMMs and quad-rank UDIMMs are not supported.

but nothing about r-dimms here:

https://support.hpe.com/hpesc/public/docDisplay?docId=c02037017

EDIT: and in the quickspecs is nothing about "x4 not supported" only that the standard configs are x8