Running an Energy Efficient Unraid Server

[ChatNoir]

46 minutes ago, pille said:

Thanks for the info. So one just need to know that or how to determine that?

This should help : 

 

[JonathanM]

6 hours ago, mgutt said:

Maybe you can reuse those from the old one as it is the same brand.

Don't use any modular cables that didn't come in the box with the PSU without testing with a meter. Brand is irrelevant, some brands use different pinouts on some models. There are only a handful of manufacturers, most PSU's are custom spec rebrands.

[mgutt]

10 hours ago, pille said:

So one just need to know that or how to determine that?

The correct card has 6 SATA ports. ^^

 

And you should buy it with PCIe X4. There are some X1 available which would slow down the card.

 

10 hours ago, pille said:

So this is 3 cables with 4 connectors. Adding up to 12drives being able to be powered

Not enough? You were talking about 11 HDDs and your board has 6 onboard SATA ports. So onboard + ASM1166 = 12. If you think about adding more HDDs: buy bigger ones. It's extremely inefficient using a huge amount of small HDDs as every HDD consumes up to 1.5W while in spindown.

 

11 hours ago, pille said:

That would add up in 24 drives, if that works voltage wise.

The internet says that the total maximum of a Molex cable is 120W. A HDD drains up to 30W at startup, but only for a very short time, which should not add in any heat to the cable. So the maximum per cable are 4 to 5 HDDs. So you should only use only a single y-adapter if you want to power an additional HDD.

 

PS I like these, because you never face the 3.3V DevSlp with Enterprise drives and you have a single plug to connect your HDD:

https://www.ebay.com/itm/352210844323

 

 

[mgutt]

6 hours ago, JonathanM said:

Brand is irrelevant, some brands use different pinouts on some models.

This warning is fine, but finally you won't be able to connect a wrong one as Corsair has different layouts of the square and round connectors in the plugs. And doing a little research: RMi, RMx and SF are using the same cables. So his HX cables won't fit.

[JonathanM]

1 minute ago, mgutt said:

This warning is fine, but finally you won't be able to connect a wrong one as Corsair has different layouts of the square and round connectors in the plugs. And doing a little research: RMi, RMx and SF are using the same cables.

I see an average of 1 incident every month or two where someone posts about dead drives where they reused a modular cable. The consequences of getting it wrong are so severe that it warrants a blanket statement of NEVER, unless you are qualified to verify it's ok. I never assume someone has those qualifications unless they say so up front, and I make sure to warn whenever someone makes a statement that could be construed as blanket permission to reuse modular cables.

 

Nothing personal, just trying to save as much data as possible.

[mgutt]

Yeah but it's not valid for Corsair. Nearly every model uses the same SATA power cables (red dots):

https://www.corsair.com/de/de/psu-cable-compatibility

 

And those that are not compatible, even won't fit at all.

 

There wasn't even a relevant change in Type 3 to Type 4:

https://forum.corsair.com/forums/topic/156672-corsair-cables-4-gen-vs-3-gen/?do=findComment&comment=921020

 

So I was wrong. HX SATA cables can be used with an RMx power supply.