ProLiant Gen8 Microsoft BIOS records 8GB put POST only shows 4GB

Question

I've got a HP Proliant Micro Gen 8 server. I've had it a while with 1 4GB RAM stick installed. I've now installed another 4GB RAM stick, its the same type, except its not an HP genuine stick (presumably this doesn't matter).

When you look in the iLO it reports both RAM sticks installed and working fine as shown in the screenshot below.

In the BIOS configuration it also shows that there is 8GB RAM installed as shown in the screenshot below:

But during POST and when the OS has booted (Vmware ESXi) it shows only 4GB as being available as shown in the screenshot below:

I've never seen this before, I've seen it where the additional memory is not detected at all but it is and shown is installed, but POST and OS showing as if it doesn't exist.

I've tried going into the Intelligent Provisioning for the first time, and found it doesn't work, goes to a grub menu for some reason, so I'm hoping the answer to fixing this doesn't result in going into the intelligent provisioning.

Hi, the memory was slotted into the correct bank ? not in the second cpu bank in example, as your system got only one cpu from the screen I seen — yagmoth555, Oct 13 '18 at 12:46
Hi @yagmoth555, the motherboard only has space for 1 CPU and just has the two DIMM slots — Boardy, Oct 13 '18 at 13:29
Update to the latest BIOS, if the ram is in fact the same type e.g. un/registered under/buffered those MUST match — Brad, Oct 13 '18 at 14:44

score 8 · Accepted Answer · answered Oct 13 '18 at 13:35

8

You have mixed registered and unregistered. That won't work. All the ram needs to be registered or unregistered.

answered Oct 13 '18 at 13:35

longneck

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Where are you seeing that? – Boardy Oct 13 '18 at 13:40
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@Boardy https://i.stack.imgur.com/ymL1q.png – Håkan Lindqvist Oct 13 '18 at 13:45
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Last column of the iLO report. – longneck Oct 13 '18 at 13:52
Ah damn didn't notice that. Checked everything else before buying it and forgot about the registered and unregistered – Boardy Oct 13 '18 at 15:09
For some reason I've now bought another DIMM module exactly the same and now it get stuck on boot with status code 0114 – Boardy Oct 13 '18 at 16:26
@Boardy is it a 64-bit processor? – cat Oct 13 '18 at 20:02
It probably only likes server ram, not consumer ram – John Keates Oct 13 '18 at 20:34
@cat It is yea, its a Intel(R) Celeron(R) CPU G1610T @ 2.30GHz, it doesn't look like the server supports RDIMM, only UDIMM annoyingly. Didn't realise there was that restriction, thought as long as it matched didn't matter – Boardy Oct 14 '18 at 12:01

ProLiant Gen8 Microsoft BIOS records 8GB put POST only shows 4GB

1 Answers1