[SOLVED] MSI B450 Tomahawk: ''When the M.2 slot is populated, two SATA 6.0 Gb/s ports are disabled.''

Jan 19, 2019
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I was on pcpartpicker making a build for my brother when i ran into a potential problem after adding the MSI b450 TomaHawk.

It says below the compatibility notes: ''When the M.2 slot is populated, two SATA 6.0 Gb/s ports are disabled''.

Does this mean that once i add a M.2 SSD on the M.2 slot, that i won't be able to add one of those portable SSD slots in the future in case he runs out of space? or can i maybe still add HDDs but no SSDs?


Build so far without GPU:


CPU:

MOTHERBOARD: MSI - B450 TOMAHAWK ATX AM4 Motherboard
RAM: G.Skill - Ripjaws V Series 16 GB (2 x 8 GB) DDR4-3200 Memory
STORAGE: Western Digital - Blue 1 TB M.2-2280 Solid State Drive
CASE: Corsair - 270R ATX Mid Tower Case
PSU:


here's the perma link in case whats above is not readable: https://be.pcpartpicker.com/list/fHgGCb
 

Chasingfaith

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May 7, 2016
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Yes, when you install a M.2 ssd in this specific motherboard 2 sata ports will be disabled. However, the motherboard has 6 sata ports so you'll still be able to add 4 extra drives in the future.
 
Jan 19, 2019
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I don't know what a "portable SSD slot" is, but if you install an m.2 drive you'll still have 4 SATA ports that can be used to connect regular 2.5" SSDs, HDDs, or optical drives.
Yes, when you install a M.2 ssd in this specific motherboard 2 sata ports will be disabled. However, the motherboard has 6 sata ports so you'll still be able to add 4 extra drives in the future.
Oh i meant a non-m.2 normal ssd. Also is there a way to know which specific 2 ports get disabled or do i have to test them one by one to find out which one it is?

Also, does it disable 2 slots in order to not lower the speed of the other ports or is there another reason why the 2 ports get disabled?

And TJ Hooker said 2.5'' ssd, hdd, optical drives. But would it also be able to support the 3.5'' WD Blue 1TB HDD or does the size not matter in this case?

Thanks for the quick replies i didn't expect it :)
 
The M.2 slot shares bandwidth with two of the SATA ports, so they cannot all be used at the same time. Think of it like a switch that can either be connected to the M.2 slot or the SATA ports.

SATA5 and SATA6 are the ones that get disabled. They will be labelled in a diagram in the manual, and possibly on the board itself.

When I said 2.5" I was just referring to 'normal SSDs', which are typically 2.5" form factor. The SATA ports can be used for any physical drive size that uses a SATA connector, i.e. 3.5" HDD.
 
Jan 19, 2019
7
1
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The M.2 slot shares bandwidth with two of the SATA ports, so they cannot all be used at the same time. Think of it like a switch that can either be connected to the M.2 slot or the SATA ports.

SATA5 and SATA6 are the ones that get disabled. They will be labelled in a diagram in the manual, and possibly on the board itself.

When I said 2.5" I was just referring to 'normal SSDs', which are typically 2.5" form factor. The SATA ports can be used for any physical drive size that uses a SATA connector, i.e. 3.5" HDD.
Got it, thanks for the answers and quick replies. Problem solved :D
 
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