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8796
January 21st, 2014 16:00
Ram and R620
Hi to all,
first of all sorry for my bad english :)
I have a PowerEdge R620 and it works very well (no one problem in 1 year of activity) with esxi and about 7 vm.
This server is equipped with 4 x 4gb of ram and now i want to upgrade it so I have bought 1 x 16 gb some weeks ago.
Could someone help with with this upgrade? I have tried to install it on slot (Channel 0) but with negative results (error message).
Thanks
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theflash1932
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16.3K Posts
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January 21st, 2014 19:00
You will always get an error installing only one 16GB DIMM. Do you have one or two processors installed?
cell00
6 Posts
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January 22nd, 2014 00:00
Two processors..
I think to understand which is the problem....and if I move 4 x 4 gb to slot of first pocessor and the new 16 gb to second one?
Dev Mgr
6 Operator
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9.3K Posts
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January 22nd, 2014 08:00
The main rules for memory installation on servers using (modern) Xeon processors:
- each memory channel needs to be populated the exact same way, unless a memory channel is not used at all
- when using multiple processors, all processors need to have the exact same memory population
So, you will need to buy at least 1 more 16GB dimm. Then you could do this:
CPU 1: Memory channel 1, slot 1: 16GB, slot 2: 4GB, slot 3: 4GB
CPU 2: Memory channel 1, slot 1: 16GB, slot 2: 4GB, slot 3: 4GB
To upgrade to more in the future after this, you'll have to either remove memory or buy at least 2 x 16GB + 4 x 4GB each time.
theflash1932
11 Legend
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16.3K Posts
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January 22nd, 2014 08:00
"I think to understand which is the problem....and if I move 4 x 4 gb to slot of first pocessor and the new 16 gb to second one?"
No, each processor must be populated with the same configuration. So, you CAN'T use a single 16GB DIMM in this server with two processors ... each processor would have to have a 16GB DIMM.