09-19-2013 01:18 PM - edited 03-01-2019 11:15 AM
Customer configured 12 x 16 GB Dimm configuration on a B200-M3
Server 3/4:
Equipped Product Name: Cisco UCS B200 M3
Equipped PID: UCSB-B200-M3
Equipped VID: V01
Equipped Serial (SN): FCH16277ZK7
Slot Status: Equipped
Acknowledged Product Name: Cisco UCS B200 M3
Acknowledged PID: UCSB-B200-M3
Acknowledged VID: V01
Acknowledged Serial (SN): FCH16277ZK7
Acknowledged Memory (MB): 196608
Acknowledged Effective Memory (MB): 196608
Acknowledged Cores: 16
Acknowledged Adapters: 1
Bios:
Model: UCSB-B200-M3
Revision: 0
Serial:
Vendor: Cisco Systems, Inc.
Motherboard:
Product Name: Cisco UCS B200 M3
PID: UCSB-B200-M3
VID: V01
Vendor: Cisco Systems Inc
Serial (SN): FCH16277ZK7
HW Revision: 0
Array 1:
DIMM Location Presence Overall Status Type Capacity (MB) Clock
---- ---------- ---------------- ------------------------ ------------ ------------- -----
1 A0 Equipped Operable Ddr3 16384 1600
2 A1 Equipped Operable Ddr3 16384 1600
3 A2 Missing Removed Undisc Unknown Unknown
4 B0 Equipped Operable Ddr3 16384 1600
5 B1 Equipped Operable Ddr3 16384 1600
6 B2 Missing Removed Undisc Unknown Unknown
7 C0 Equipped Operable Ddr3 16384 1600
8 C1 Missing Removed Undisc Unknown Unknown
9 C2 Missing Removed Undisc Unknown Unknown
10 D0 Equipped Operable Ddr3 16384 1600
11 D1 Missing Removed Undisc Unknown Unknown
12 D2 Missing Removed Undisc Unknown Unknown
13 E0 Equipped Operable Ddr3 16384 1600
14 E1 Equipped Operable Ddr3 16384 1600
15 E2 Missing Removed Undisc Unknown Unknown
16 F0 Equipped Operable Ddr3 16384 1600
17 F1 Equipped Operable Ddr3 16384 1600
18 F2 Missing Removed Undisc Unknown Unknown
19 G0 Equipped Operable Ddr3 16384 1600
20 G1 Missing Removed Undisc Unknown Unknown
21 G2 Missing Removed Undisc Unknown Unknown
22 H0 Equipped Operable Ddr3 16384 1600
23 H1 Missing Removed Undisc Unknown Unknown
24 H2 Missing Removed Undisc Unknown Unknown
Is this compatible with Table 25 in the B200-M3 Specs ?? I don't thinks so ?
Thanks for any clarification
09-19-2013 01:56 PM
Walter,
If the customer was going to install 6 DIMMs per CPU (total of 12 in the blade) the arrangement had to be:
CPU1 = A0, B0, B1, D1, D0, C0 move A1 to D1
CPU2= E0, F0, F1, H1, H0, G0 move E1 to H1
-Kenny
09-19-2013 10:39 PM
Thanks Keny ! This confirms my understanding. This 192GB config should also clock at 1600 MHz (dimms and cpu support it) ?
09-20-2013 07:08 AM
Please see the detail for you query in the documnet attched ,Hope this may help you out regarding your query.
Memory best practice guides.
Memory Configuration Best Practice for UCS M3 Servers-v1 03 (2)
09-20-2013 07:49 AM
I think this is a Cisco internal document ?
Can you please post it, and/or refer to public documents ! The situation becomes very confusing !
Thanks
Walter.
09-20-2013 07:57 AM
Yes Walter ,
This is Cisco Document ..for public Document I refer the below Spec sheet
http://www.cisco.com/en/US/prod/collateral/ps10265/ps10280/B200M3_SpecSheet.pdf
09-20-2013 08:02 AM
Walter this is explained in the B200 M3 HW Install Guide:
http://www.cisco.com/en/US/docs/unified_computing/ucs/hw/blade-servers/B200M3.html#ID799
Table 3
For 12 DIMM Configurations (6 DIMMs per socket)
CPU0
A0, B0, C0, D0, A1, B1
CPU1
E0, F0, G0, H0, E1, F1
For above the memory would only run at balanced at 1333Mhz if you populate all 3 banks. If you want to run the memory at 1600Mhz then you can only populate the first two banks as detailed in the thread above.
With 3 DIMMs populated per channel, 8 GB and 16 GB 1600-MHz memory devices run at a
maximum speed of 1333 MHz. Other memory devices are limited to 1066 MHz operation
when populated at 3 DPC
Robert
09-20-2013 08:23 AM
Hi Robert
There are simply contradicting facts:
http://www.cisco.com/en/US/docs/unified_computing/ucs/hw/blade-servers/B200M3.html#ID799
Table 3
For 12 DIMM Configurations (6 DIMMs per socket)
CPU0
A0, B0, C0, D0, A1, B1
CPU1
E0, F0, G0, H0, E1, F1
Hardware Spec
http://www.cisco.com/en/US/prod/collateral/ps10265/ps10280/B200M3_SpecSheet.pdf
Table 25, says
CPU0
A0,B0, B1, D1, D0, C0
CPU1
E0, F0, F1, H1, H0, G0
Something is wrong here ! and a similar documentation issue exists for the B22-M3 (see my other note)
Thanks for any clarification
Walter.
09-20-2013 08:54 AM
Walter,
You are right on this one, there is a discrepancy.
On http://www.cisco.com/en/US/prod/collateral/ps10265/ps10280/B200M3_SpecSheet.pdf you may even see that for a 6/10 DIMMs per CPU config, the document only lists CPU2.
I will ask how we can give feedback on this, but it will "best effort" from my side...
-Kenny
09-26-2013 06:45 AM
Walter,
If you have not, please open a TAC case if you dont mind and ask for the confirmation in regards to the correction/confirmation about the docs discussed, it is complicated without the case number for me. You may open the case with the keyword "Product Questions and Features"
You can use this thread to open the case cause they will need a case number if a doc bug needs to be opened.
-Kenny
09-23-2013 04:41 PM
Hi All
There is a public link to the Memory Configuration Best Practice for UCS M3 Servers.
https://communities.cisco.com/docs/DOC-34924
Nabil
09-26-2013 02:38 PM
Please use this link it may help you.
http://www.cisco.com/en/US/prod/collateral/ps10265/ps10280/B200M3_SpecSheet.pdf
09-26-2013 11:02 PM
Hi Azhar
Of course I know this document, but......
There are simply contradicting facts:
http://www.cisco.com/en/US/docs/unified_computing/ucs/hw/blade-servers/B200M3.html#ID799
Table 3
For 12 DIMM Configurations (6 DIMMs per socket)
CPU0
A0, B0, C0, D0, A1, B1
CPU1
E0, F0, G0, H0, E1, F1
Hardware Spec
http://www.cisco.com/en/US/prod/collateral/ps10265/ps10280/B200M3_SpecSheet.pdf
Table 25, says
CPU0
A0,B0, B1, D1, D0, C0
CPU1
E0, F0, F1, H1, H0, G0
Cheers
Walter.
10-10-2013 08:10 PM
Hi Walter,
I raised this up to our Product Marketing team and they are in the process now of pushing through the required corrections to the HW Spec Guide. To summarize: Table #3 (Above in this string) is correct and Table #25 in the HW Spec is being corrected. Thank you for bringing this to our attention.
Jeff Foster
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