Supermicro X9DRL-3F - Won't show 64 GB RAM installed

[Marcos Sachi]

Hello guys.

I'm new in the forum and I'm hoping I can get some help with my issue. I've recently bought a SuperMicro X9DRL-3F, running with an Intel Xeon Processor E5-2603 v2 and 64 GB RAM (Samsung 64GB 8x8GB 2Rx4 PC3-10600R DDR3 1333Mhz 240PIN Registered ECC REG Memory). I've installed ESXi 6 and it's running very well, no issues at all.

My concerning is about RAM, checking in the BIOS I see only 32 GB RAM installed. I've tested all memories, one by one, two by two, and all works fine, but when all of them are installed only shows 32 GB RAM instead of 64 GB RAM.

This is the memory I bought - Samsung 64GB 8x8GB 2Rx4 PC3-10600R DDR3 1333Mhz 240PIN Registered ECC REG Memory

This is the processor - Intel® Xeon® Processor E5-2603 v2 (10M Cache, 1.80 GHz) Specifications

This is the motherboard - Supermicro | Products | Motherboards | Xeon® Boards | X9DRL-3F

Has anyone seen something like that? Any thought what can I check?

Thank you in advance.

 

[DrLobotomy]

Was that memory on the QVL?

 

[iamwhoiamtoday]

Do you have two Xeons installed? Or a single Xeon?

Each Xeon on that board can only use 4 memory slots. Having all 8 memory slots populated but only one processor would result in only 4 utilized sticks.

 

[Marcos Sachi]

Was that memory on the QVL?

Hi.

It seems so. At least I checked on their website and it says so.

 

[Marcos Sachi]

Do you have two Xeons installed? Or a single Xeon?

Each Xeon on that board can only use 4 memory slots. Having all 8 memory slots populated but only one processor would result in only 4 utilized sticks.

 

[DrLobotomy]

2 CPU's or 1? Those other banks wont light up without a CPU over there.

 

[Marcos Sachi]

Yeah, I'm afraid that's the reason :/
I waiting to get an official confirmation from Supermicro as well.

Thanks a million mate!

 

[Marcos Sachi]

Thank you for all replies. That's it and I will need the second processor if I want 64 GB RAM.