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FTich
Beginner
2,931 Views

Nuc: Is there no SATA Support for 3.5 inch HDD?

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Hello,

 

I have a NUC8i3BEH and want to connect a 3.5 inch HDD to it via the SATA cable. I tried two different 3.5 drives, which were not detected. No entry in the BIOS, no spinning noise. Then I tried with a 2.5 inch HDD, which got perfectly accepted.

 

Can somebody else reproduce this problem? Is there a reason why the bigger drive is not detected?

 

Remark: I know that a 3.5 drive won't fit into the Nuc's housing, but this is not a problem for my setup.

 

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1 Solution
n_scott_pearson
Super User Retired Employee
2,389 Views

The answer to this is simple: 3.5" (Desktop) drives require power to be supplied on 3.3V, 5V and, most importantly, 12V rails. 2.5" (Laptop) drives, on the other hand, only require power to be supplied on 3.3V and 5V rails. Since the power connector for the NUC was designed to support only 2.5" drives, it provides only 3.3V and 5V rails. Thus, 3.5" Desktop drives are not going to power up properly using only what the NUC provides (i.e. the 3.5" drives need that 12V rail).

 

An option is to purchase an external power supply for the 3.5" drive. These are typically not sold standalone, but are included in kits supporting the connection of drives via USB. Here is an example of what you need (cost US$13): https://www.amazon.com/Adapter-Converter-Optical-External-Reader/dp/B07X86TKTS.

 

Alternatively, you can purchase a standalone chassis (with power supply) to mount a 3.5" drive in and connect it to the NUC via USB 3.0. Here is a good example (cost: US$20): https://www.amazon.com/ORICO-Toolfree-External-Enclosure-Support/dp/B00GAML7OK.

 

I like this second option better because it is cleaner and more permanent. The first option is really only for temporary hookups.

 

Hope this helps,

...S

 

P.S. Source for information: https://en.wikipedia.org/wiki/Serial_ATA#Power_connectors.

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9 Replies
AlHill
Super User
2,389 Views

How are you powering the external drive?

How are you connecting to the external drive?

 

Doc

 

FTich
Beginner
2,389 Views

NUC8i3BEH provides an SATA+Power cable for a 2.5 HDD. For testing I temporarily left the bottom plate open and connected the SATA+Power cable to an 3.5 hdd. Powering should be done via the Nuc. I have not found a specification for the maximum power provided by the Nuc via this Port.

AlHill
Super User
2,389 Views

Do you have an external power adapter with a sata power connector that you can use? Or, do you have a desktop where you could use one of its power connectors as a test?

 

The 3.5 drive is known good, right?

 

Doc

 

FTich
Beginner
2,389 Views

Sadly I currently neither have an external power adapter nor a desktop at hand.

 

I tested the drives in an empty external case (USB+external power supply), where they run with no issue. So I expect them to be good.

AlHill
Super User
2,389 Views

I wish I could help more. Perhaps someone can respond with an absolute on this.

 

Doc

 

FTich
Beginner
2,389 Views

Thank you for your effort.

AdrianM_Intel
Moderator
2,389 Views

Hello FTich, 

 

Thank you for posting on the Intel® communities.

 

Can you please provide some pictures showing all the connections you are doing with 3.5 HDD to the Intel® NUC Kit NUC8i3BEH?

 

Regards,

 

Adrian M.

Intel Customer Support Technician

A Contingent Worker at Intel

n_scott_pearson
Super User Retired Employee
2,390 Views

The answer to this is simple: 3.5" (Desktop) drives require power to be supplied on 3.3V, 5V and, most importantly, 12V rails. 2.5" (Laptop) drives, on the other hand, only require power to be supplied on 3.3V and 5V rails. Since the power connector for the NUC was designed to support only 2.5" drives, it provides only 3.3V and 5V rails. Thus, 3.5" Desktop drives are not going to power up properly using only what the NUC provides (i.e. the 3.5" drives need that 12V rail).

 

An option is to purchase an external power supply for the 3.5" drive. These are typically not sold standalone, but are included in kits supporting the connection of drives via USB. Here is an example of what you need (cost US$13): https://www.amazon.com/Adapter-Converter-Optical-External-Reader/dp/B07X86TKTS.

 

Alternatively, you can purchase a standalone chassis (with power supply) to mount a 3.5" drive in and connect it to the NUC via USB 3.0. Here is a good example (cost: US$20): https://www.amazon.com/ORICO-Toolfree-External-Enclosure-Support/dp/B00GAML7OK.

 

I like this second option better because it is cleaner and more permanent. The first option is really only for temporary hookups.

 

Hope this helps,

...S

 

P.S. Source for information: https://en.wikipedia.org/wiki/Serial_ATA#Power_connectors.

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FTich
Beginner
2,389 Views

I assumed that there was not suffiient power, but I did not know about 12V rail...

Thank you very much for your post, the issue is solved for me.

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