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March 31st, 2025 22:25
NVMe for R640
So I have my R640 and it has a SAS/SATA Backplane
I know the P/N for the NVMe Backplane is MWY54. However, I do not know the cables for that connect to the backplane to the motherboard.
I need 0-1 and then 2-5. Not sure why it has to be this complicated but somehow and some reason, it does. Anyways if someone could help me it would be a godsend
I'm tired customer service, sales, technical support transferring me around like it's monkey in the middle.
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DELL-Young E
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April 2nd, 2025 00:43
I believe this is depending on config, it will be 2-9 or 0-9 NVME..
To go from 8 (figure 13) to 10 (figure 3), (referring to the manual), you need to add cable M7YXV and card TJCNG.
https://www.dell.com/support/manuals/en-us/poweredge-r640/per640_ism_pub/cable-routing?guid=guid-97280a84-9e95-4a04-901f-400c88c14645&lang=en-us
Pleas visit https://www.dell.com/community/en/direct-messaging
Respectfully,
(edited)
Chino de Oro
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March 31st, 2025 23:34
Credit of DELL-Shine K from another post...
Below table have the part number for connecting NVMe on R640 X10 backplane. One of the first 4 cable cab be used for connection NVMe drives on slot 2 to 5 and one of the last 3 cable can be used for connection NVMe drives on slot 6 to 9
ASSY,CBL,NVME2-5,X10BP,MB,R640
ASSY,CBL,NVME6-9,X10,MB,R64,V3
(edited)
Chino de Oro
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March 31st, 2025 23:36
Related part number info can be learnt from this discussion https://www.dell.com/community/en/conversations/poweredge-hardware-general/nvme-cable-for-dell-r640/647fa14ff4ccf8a8de6854da
Augury Solutions
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April 1st, 2025 00:49
@Chino de Oro Thanks!
But what about bays 0-1?
Chino de Oro
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April 1st, 2025 00:56
I think it's M026C
DELL-Rey G
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April 1st, 2025 14:47
I dont mean any offense, I am truly just curious as I see these types of questions very often on the forums, people want to make nvme systems into sas/sata, and sas/sata systems into nvme (among other things). why wasnt the system ordered with nvme to begin with if thats what is needed?
Rey
#Iwork4Dell
Augury Solutions
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April 3rd, 2025 14:18
@DELL-Rey G
I think it is crazy you are working for Dell and asking that question without providing support.
I got the server second-hand from a local Datacenter and I am upgrading it.
Augury Solutions
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April 3rd, 2025 14:20
@DELL-Young E Hey!
I just need the part numbers for cables 0-1 and 2-5! Also, figure 8 does not show.
DELL-Charles R
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April 3rd, 2025 15:42
Hello,
We don't support field changing of backplane configuration. There are no Kits for it and we would have to try to piece part it together which would lead go possible wrong part or not all correct parts and lead to frustration.
With that said these are all the NVME cables I see listed:
Part Number
Part Description
Functional Description
684MR
ASSY,CBL,NVME6-9,X10,MB,R64,V3
ASSY NVME Cable, (for SM 2.5"x10)
6PPNG
ASSY,CBL,NVME6-9,X10BP,MB,R640
ASSY NVME Cable, (for SM 2.5"x10)
6WD76
ASSY,CBL,NVME,6-9,10HD,3M,R640
ASSY NVME Cable, 3M, (for 2.5x10 config)
F2V74
ASSY,CBL,NVME2-5,X10,MB,R64,V3
ASSY NVME Cable, (for SM 2.5"x10)
FF7PK
ASSY,CBL,NVME2-5,X10BP,MB,R640
ASSY NVME Cable, (for SM 2.5"x10)
M7TPF
ASSY,CBL,BRDG,BPNVME,KEYSTON,Z
DSS Only, Assembly Cable, Bridge, Backplane, NVME, Keystone
MFTWX
ASSY,CBL,NVME2-5,10HD,3M,R640
ASSY NVME 2-5 Cable, 3M, (for 2.5x10 HD Configuration)
TXC4H
ASSY,CBL,NVME2-5,X10,MB,R64,V4
ASSY Cable NVMe2-5 X10 Motherboard, Version4, X10
WG99W
ASSY,CBL,X4,MBM3,NVME,R640,V3
ASSY NVME Cable, (4HDD + Rear HDD Configuration)
WMR31
ASSY,CBL,X4,MBM3,NVME,R640
ASSY NVME Cable, (4HDD + Rear HDD Configuration)
DELL-Rey G
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April 3rd, 2025 15:51
As I said, i was just curious, I meant no offense. As for the support, some of us here at Dell have knowledge of certain areas and we volunteer our time on these forums to help people where we can. I couldnt help much in your case since part numbers change, and sometimes a customer will say I have X and trying to accomplish Y, and we provide a part number(s) and then something in the scenario was not communicated correctly and that part number doesnt work and then a customer can get mad. I tend to avoid making suggestions when it comes to parts unless I have a running configuration exactly like the customer is trying to achieve. In your case, I only have a 2 sas/sata+8 nvme drive config. I understand your frustration in trying to find the correct parts, but unfortunately we arent usually given information that says "if you are trying to add/change parts from this config to that config, you need x,y,and z".
DELL-Rey G
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April 3rd, 2025 18:26
Just to consolidate what has been mentioned in this thread, the parts are:
expander MWY54
ASSY,CBL,NVME2-5, X10BP,MB,R640 FF7PK
ASSY,CBL,NVME6-9, X10BP,MB,R640 6PPNG
ASSY,CBL,10BP,EXT,R640 M7YXV (cable that goes from PCIe NVME card to drives 0 and 1)
PWA,CTL,PCIE,EXTDR,ADPT,14G,LP TJCNG (PCIe NVME card)
In the image, there is a 3,5 and 6 cable. my system has these 3 cables, they are 4RN89, 59G4K and GWW87.
note, my system has the sas/sata mini perc.
Rey
#Iwork4Dell
(edited)