8 x SSD drives in a Dell PowerEdge T140 in place of 4 x 3.5 HDDs... Need Y PCIe 6pin adapter

ElCoyote_

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Jul 22, 2016
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This is related to the Dell PoweEdge t140
If my Math is correct, 8 x consumer SSDs should pull less power than 4 x 3.5HDDs.
With the current cabling in the T140, only one SFF port on my H730P is used.
I was able to buy a 2nd SAS/SATA x 4 cable that I will connect to the 2nd port of my H730P.
These's only one problem: There is only a single PCIe x6 power receptacle on the motherboard so I need to take the two 6pin PCIe cables and make their power connector into one without soldering (if possible).

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Is anyone anyway of one such adapter? I need to power these two with a single motherboard connector.?
Thanks for reading,

Vincent
 

Ruklaw

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Dec 12, 2016
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The easiest solution if you can't find the appropriate adapters and don't want to solder is to use some terminal block to splice the cables you do have in the correct way - this sort of stuff:

Obviously you need to be careful to check you aren't connecting anything that shouldn't be connected, and that everything is rated for the amount of current that is required.

I'm not sure I quite follow what it is you need to do so proceed at your own risk, I accept no responsibility if you burn down your house/business etc etc.

One thing I would observe is that 2.5" SSDs are only powered from the 5v line so the PCIE power connector (which only carries 12v as I recall) may be unnecessary anyway.
 

ElCoyote_

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Jul 22, 2016
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Hi @Ruklaw,
Good point about the 5V rail for the SSDs.. I have gone the soldering route and.... it works well, impendance is nominal (as measured) but as you said, I probably can't tell since the SSD's aren't using the 12V anyway. :)
My SSDs used to show up on my H730P as ID 0,1,2,3.. now with both SAS+power cables in place, they show up as ID 0,1,4,5 :)
 
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ElCoyote_

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Jul 22, 2016
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```
# megaclisas-status
-- Controller information --
-- ID | H/W Model | RAM | Temp | BBU | Firmware
c0 | PERC H730P Adapter | 2048MB | 59C | Good | FW: 25.5.8.0001

-- Array information --
-- ID | Type | Size | Strpsz | Flags | DskCache | Status | OS Path | CacheCade |InProgress
c0u0 | RAID-0 | 1818G | 512 KB | ADRA,WB | Enabled | Optimal | /dev/sda | None |None
c0u1 | RAID-0 | 10914G | 64 KB | ADRA,WB | Enabled | Optimal | /dev/sdb | None |None

-- Disk information --
-- ID | Type | Drive Model | Size | Status | Speed | Temp | Slot ID | LSI ID
c0u0p0 | SSD | S6 0R303366N Samsung SSD 870 EVO 2TB SVT01B6Q | 1.818 TB | Online, Spun Up | 6.0Gb/s | 31C | [:0] | 0
c0u1p0 | SSD | S5...0M801210R Samsung SSD 860 EVO 4TB RVT04B6Q | 3.637 TB | Online, Spun Up | 6.0Gb/s | 27C | [:1] | 1
c0u1p1 | SSD | S5.....N900510A Samsung SSD 860 EVO 4TB RVT04B6Q | 3.637 TB | Online, Spun Up | 6.0Gb/s | 28C | [:4] | 4 <=====
c0u1p2 | SSD | S6......501310W Samsung SSD 870 EVO 4TB SVT01B6Q | 3.637 TB | Online, Spun Up | 6.0Gb/s | 33C | [:5] | 5 <=====
```
 

Ruklaw

New Member
Dec 12, 2016
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That's a lot neater than my terminal block solution (I see you had some on standby :p), well done.
 

ElCoyote_

Member
Jul 22, 2016
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I didn't do such a good job of soldering but I checked the impedance on both sides of my blobs and it was around the same as one inch of the cables in the power PCIe 6pin cable so not much of a difference for the overall cable.