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R710 Memory upgrade warning
Hello,
I have an R710 server with 24GB RAM (2 CPUs). The current RAM is 24GB, 6 modules of 4GB placed in slots A1, A2, A3 and B1, B2, B3 (the white slots).
We have purchased 6 additional modules of 8GB in order to archive a total of 72GB memory. 3 of the new modules are Kingston (1600 MHz) and the 3 other new modules are Dell (1333 MHz).
We have placed the modules to the slots as show below:
- A1 -> 8GB
- A4 -> 4GB
- A2 -> 8GB
- A5 -> 4GB
- A3 -> 8GB
- A6 -> 4GB
The same configuration for the B slots.
The problem is that BIOS (we have updated the BIOS to the latest version 6.4.0) returns the warning "Unsupported memory configuration"! But both the BIOS and my Operating System (Win 2008 R2) recognize the whole 72GB memory and the system works smoothly.
Any ideas? Anything to worry about?
DELL-Joey C
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May 8th, 2014 01:00
Hi npapadop,
The error is cause by using a mix of 1600Mhz and 1300MHz, which the motherboard will decrease the frequency of your memory modules.
Let's try this configuration:
A1/B1 > 8GB
A4/B4 > 8GB
A7/B7 > 8GB
A2/B2 > 4GB
A5/B5 > 4GB
A8/B8 > 4GB
npapadop
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May 9th, 2014 00:00
Hello and thanks for the reply! :)
I have not tried the proposed configuration yet because the server is in production and it's a bit hard to find a maintenance time slot before the weekend...
However, according to the technical manual, which configuration we try to achieve?
http://www.dell.com/downloads/global/products/pedge/en/server-poweredge-r710-tech-guidebook.pdf
The Advance ECC? If yes, are you sure about the number of the slots?
Thanks!
DELL-Joey C
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May 9th, 2014 01:00
Hi npapadop,
The configuration that I am trying to propose is to troubleshoot the mixture of memory frequency per channel.
Optimizer configuration is the mostly used configuration in server administration. If it is Advance ECC, the 1st channel must be vacant.
Here's a reference of the server memory installation on page 132. http://bit.ly/1kRptEr