Which is a better slot for a video card

Graeme
Graeme used Ask the Experts™
on
Hi there, I have been out of the hardware game for a while and am unsure which slot is better

Slot 1: PCI-Express Gen 2 x16 connector with x16 link
-or-
Slot 2: PCI-Express Gen 2 x1 connector with x1 Link

If you can let me know, that be awesome, thank you

PS im building a Crypto Mining Machine, need GPU Power
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Most Valuable Expert 2013
Commented:
Use the x16
However if mining a lot depends on the motherboard itself in terms of data transfer, if you've only the two slots to choose from this might not be the best machine for your planned purpose.  If your board has at least dual PCI-E 16x slots it's more likely to support mining at a sensible speed and running cost ratio to value mined.
Top Expert 2014
Commented:
Obviously the X16 slot will be a bit faster than the x1 slot but mining does not use a lot of PCIe bandwidth. Take a look at the ASUS B250 MINING EXPERT motherboard, it has 18 x1 slots for the GPUs.
Graemewebber4technologies

Author

Commented:
Thanks for the tips guys, I just want to use my existing hardware that I have for it currently, before perhaps getting further involved

I have a HP N54L Microserver
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Top Expert 2014

Commented:
I wasn't suggesting buying that mobo, just that it uses x1 slots. The HP N54L Microserver only has 25W spare for the GPU as it is a low power computer.
Graemewebber4technologies

Author

Commented:
Oh ok, sorry I misread
Top Expert 2016

Commented:
You do realize that gpu mining is a waste of electricity these days. There are farms of bitcoin asics that actually show results that combined with cheap electricity makes them money makers (depending upon the current cryptocurrency value)
Joining a network of other computers helps. Depending upon your mega hash rate speed determines your piece of the pie that if one member solves the puzzle all members benefit.
Graemewebber4technologies

Author

Commented:
I realise that ROI vs electricity cost is a factor, with Solar it seems to be in my favor
Most Valuable Expert 2013

Commented:
<Slightly OT> That's a really interesting aspect. If you already have the hardware lying around then powering with solar in an infrastructure which you've already invested in seems to have zero cost.  Is RoI infinite if you haven't really spent any capital no matter how small the return?

Against that your kit and infrastructure is depreciating and you've tied up both the PC and (perhaps more philosophically) your "free" energy into this process preventing it being used for anything that might have more value.

In terms of return, your single GPU is in a competition with reducing chances of success because the pool of available coin is decreasing and there are networks of serious miners out there.</Slightly OT>
Top Expert 2014

Commented:
You can mine something based on Zhash which is ASIC resistant.
Graemewebber4technologies

Author

Commented:
Thanks all for your info, definitely something to consider

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