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HP Microserver Gen 8 RAM Issues


Paul44
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Hi,

Can anyone tell me if NT8GC72B4NB1NJ-CG 8GB 2RX4 PC3 10600R-9-10-E1 1333 ECC RAM will work in my HP Propliant Microserver Gen8? It is ECC RAM but the machine will not boot just stays on 90% check mark, can a bios update assist?

 

Regards

Paul

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13 minutes ago, schoondoggy said:

That is registered memory. It will not work in a MS Gen8.

Thank you :-(, I cant find RAM in South Africa for this machine.

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On this topic, does anybody have any suggestions for "go to" brands of RAM that "just work".  In other words, what would you choose if you had to, in the absence of any further information or recommendations?

 

Generally, as long as the RAM specs are compatible, the brands of modules that I go for are the following:

  1. (SK) Hynix - This is my personal #1 because I run a lot of Supermicro boards.  Hynix is generally the officially recommend brand of RAM module for Supermicro boards.
  2. Crucial/Micron and Samsung - Each of these two brands are equally preferable in my experience.

In other words, if I didn't know any better, I would expect any 8 GB ECC UDIMM modules of the above brands to work in a Gen. 8.  This is provided that:

  • The modules are known to be good, for example, by having passed Memtest86 in a test server.
  • It is highly preferable that all RAM module are identically spec'ed.
  • It is ideal (but extremely difficult to ensure) that all RAM modules come from the same tray.

Of the above, the first two conditions are necessary for any RAM that goes into a production server.  The third preference is a "nice to have".

Edited by ullbeking
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Thank you for the reply, @netware5.  It looks like my heuristic approach would work well with a Gen. 8.  And the section you pointed me to actually highlights one of the things that is so crucially important when choosing RAM.

 

There are two things to be aware of when choosing RAM:

  • The DRAM chips themselves, e.g., Micron or Samsung.
  • The modules that contain the DRAM chips, e.g., Crucial (Micron), Samsung.

The point is that module manufacturers often swap out the actual DRAM chips without changing the model # etc, of the module.  There was a notorious case years ago where Kingston got their modules officially approved for a particular series of mainboard, but later they changed the DRAM chips to something very different and the machines were then unbootable.

 

And not only do the DRAM chips drastically affect the RAM modules, but the design of the modules themselves is also critically important.

 

Personally I think Kingston is to RAM as Seagate is to HDD's.

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