Looking for advice on M.2 SSD in proximity to video card

awh112017

Prominent
Feb 17, 2017
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510
Hi all,

As someone who will be building a PC for the first time, I have a question regarding the newer M.2 SSDs and their proximity to other components on the motherboard

Of relevance to my question are these parts I have been purchasing:

ASUS Maximus IX Hero Motherboard - Here's a link to the top-down pic: Link
EVGA GeForce GTX 1060 6GB FTW GAMING Video Card
WD Black M.2 PCIe SSD 256GB (This is a pre-order, it ships on 2/28)

The SSD will be my Windows / core apps drive, with a 1TB HDD handling other data.

The Video Card will be placed on the top PCIe x16 port, and my original plan was to have my SSD on the bottom M.2, further away from the video card. However after more digging (I'm being a bit OCD with my research as this is my first time). I learned that this M.2 port only supports at max PCIe x4...giving me about 4GB/s which would be slower than a 6GB SATA! Whoops!

So if I really want to make the most out of this specific SSD, I would need to plug it into the top M.2 port, and since the SSD is a 2280 form factor, I have a feeling like it will be literally right next to the Video Card. So, two questions:

1.) Are there any concerns regarding fitting or heat issues? This PC is primarily going to be for video editing, so I won't be overclocking anything at all, but I did hear these vid cards run hot, and I'm a bit concerned about having my system data next to something that will be hot. That said Im getting a Corsair Airflow case with 3 fans and a dual fan CPU cooler, but I don't know if that matters as much given how close the 2 components would be.

2.) Concerns aside, do you think it's just overall a better and less riskier option to have a SATA SSD like this? with 6GB SATA, which would be in a separate SSD tray, $20 less, and I could get started more immediately as I wouldn't have to wait for the 28th release? Or is this 8GB M.2 gonna be worth it?

Sorry if this is a silly first-timer question haha, just was a very specific thing I couldn't find previous info on. Thanks!
 
Solution
I think the mobo manufacturers have done plenty of testing with the m.2 slot and heat considerations.
If you are using a downdraft cpu fan it will most likely blast the m.2 a little as well.
The GPU sits in its PCI-E slot and blasts heat on the lower side and your m.2 is above it so it might only get a little bit of radiant heat from the backplane of the gfx card.
Anyway, M.2 will throttle if it gets too hot and its the future, so jump on board.
I think the mobo manufacturers have done plenty of testing with the m.2 slot and heat considerations.
If you are using a downdraft cpu fan it will most likely blast the m.2 a little as well.
The GPU sits in its PCI-E slot and blasts heat on the lower side and your m.2 is above it so it might only get a little bit of radiant heat from the backplane of the gfx card.
Anyway, M.2 will throttle if it gets too hot and its the future, so jump on board.
 
Solution
First of all, PCIe3.0 x4 is 4GB/s; SATAIII is 6Gb/s. I've highlighted B and b, because, B = Bytes and b = bits. 1 Byte = 8 bits. So,

PCIe3.0 x4: 4GB/s = 32Gb/s
SATAIII: 0.75GB/s = 6Gb/s

Just to put things in proper perspective. :)

In short, the solution is to use the lower right M.2 socket (in PCIe3.0 x4 mode) away from the GPU (because it is faster than SATA).
 

awh112017

Prominent
Feb 17, 2017
2
0
510


Holy moly! I'm surprised I missed that one. Ha! Definitely means that the M.2 option is better huh hands down.

@Nine Layer Nige - Thanks for the response, I think your answer definitely gave me the confidence. I didn't know the neuance of where the GPU distributes heat, and this is perfect. Blowing the heat down makes me feel much more ok with the radiant heat and I think it will be fine. Given the performance difference M.2 offers, yeah, I'd say it's the way to go.

I'm getting a dual-fan CM Hyper 212X which I was planning to blow horizontally, I guess I could consider changing the orientation if that is possible, but to be honest from what you told me, the sheer amount of airflow I'll have, and the fact I'm not going to be overclocking or pushing this card for gaming really...I think I'll be fine.

@raison - Ok! So it will still work fine in X4 mode yeah? Essentially faster than SATA and the peace of mind of distance from GPU,but at the cost of "not full potential"? Nice to know I have the option!

Thank you both for your time and responses!!

EDIT: Gosh I'm a mess, in retrospect, the drive is only 8Gb/sec so there's that it doesn't even seem to matter. And it says x4 as the interface anyway. So this really is a non-issue, I should be able to install into either. Sorry! I'll admit all of my research I've started to get my PCIe lanes confused with M.2 ha! Thanks everybody