Hardware advice for 2021

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16 Dec 2021 22:44 #229211 by myval
it is end of 2021 and I am wondering if anyone can suggest any good reliable PC setup to run latest LinuxCNC and ethernet MESA card.
The only requirements I have are reliability, size and to pass all the required tests and to be 100 compatible with linuxcnc (drivers and all)

Motherboard: ?
Processor: ?
GPU:?
Power supply: ?
HDD: ?
RAM: ?

have I missed any parts?
thanks for any good suggestions
 

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16 Dec 2021 22:54 #229213 by tommylight
Replied by tommylight on topic Hardware advice for 2021
Hmmm, what budget ?
I can post the spec of what i am using right now, but it might be bad for public health seeing as graphic cards are harder to find than spare kidneys ! :)
HP 8300 SFF
Dell Optiplex form 760 and up
Fujitsu "corporate" edition are also very good
Well, those are all corporate or enterprise edition PC's, so use much better electronics inside than the "office" or "home" edition ones. Priced from 80 to 150 Euros here.

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16 Dec 2021 23:30 #229216 by myval
Replied by myval on topic Hardware advice for 2021
I already spent obscene amount of money on the machine so I want something reliable and don't think that any computer will break the bank.
and I would prefer the smallest possible form factor.
haha and no spare kidney solution it has to be NO unobtainium.
corporate or enterprise good point I will keep that in mind.

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17 Dec 2021 01:35 #229235 by rodw
Replied by rodw on topic Hardware advice for 2021

The only requirements I have are reliability, size and to pass all the required tests and to be 100 compatible with linuxcnc (drivers and all)

 

That probably won't happen. New hardware needs new drivers and often the non-free drivers. The Debian 12 distro with 5.10 kernel has a lot more drivers in the kernel.

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17 Dec 2021 20:25 #229337 by myval
Replied by myval on topic Hardware advice for 2021
So what do you suggest? I am fine with older hardware if it is going to run linuxcnc without any issues.
At the moment I am running it on old Lenovo laptop but it has issues that is why I ask for suggestions to hit the spot with the right hardware.

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17 Dec 2021 21:46 #229342 by myval
Replied by myval on topic Hardware advice for 2021
HP 8300 SFF
Dell Optiplex form 760 and up

I can get any of these over here but they all come with range of hardware in it.
I am guessing 8gb ram would be ok? if I go with 16 no harm
120GB ssd should be planty

but now the hard parts:
what processor ? i3 good for linuxcnc? or anything else would be better?
what graphics card? they all come with at least intel hd... or Ge-force... what does linuxcnc like the most?

 

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17 Dec 2021 22:20 #229344 by tommylight
Replied by tommylight on topic Hardware advice for 2021
Optiplex 760 has a parallel port, so if you plan on starting with it, get that. The others will do just fine for ethernet mesa boards, some do have PCI or PCI-E slots.
HP8300 is for ethernet only.
Some Fujitsu also come with a motherboard header for parallel port, so a 5$ cable/bracket is all that is required.
Memory, for the official release of LinuxCNC that is based on Debian 10, 4GB of RAM are enough, Mint with Mate desktop will work fine with 4GB, but 8 would be better. 16GB are overkill for everything regarding machine control, but if you also plan to do CAD/CAM on it, it comes handy.
I never even tested any i3, i avoid them as the plague, but i5 and i7 worked just fine.
Same for the integrated graphics, Intel works in most cases, but i am aware that some chipsets have issues with a Linux driver, even those can be used by blacklisting the offending driver or using "nomodeset" at boot time.
After everything above, you are buying a used PC, so be prepared for disappointment as they might come with a variety of issues, from annoying to plain unusable.
There are 4 used PC shops in my town, i bought over 40 of those old PC's from 3 of them and never ever had any issue with them, the 1 remaining shop i got 4 PC's and all of them had issues and were utterly unusable.

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18 Dec 2021 01:28 - 18 Dec 2021 01:37 #229363 by Jake
Replied by Jake on topic Hardware advice for 2021
I think I will be jumping in on this also, as I think I need to replace the PC in my VMC. I would much rather buy new, it does seem like much of the new hardware is not terribly happy with Linux on it.  It would be nice to be under $1000.
Last edit: 18 Dec 2021 01:37 by Jake.

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18 Dec 2021 02:12 #229367 by tommylight
Replied by tommylight on topic Hardware advice for 2021

It would be nice to be under $1000.

OK
Asus ROG STRIX B550-i Gaming ~200
Ryzen 5 5600x ~230 >>I have a Ryzen 7 3700X
2X 16GB HyperX DDR4 3600 dual rank RAM ~240
1TB Kingston NVME SSD ~120 >>I use a 32GB NVME, yes 32GB !
Seasonic 500W SFX Power supply ~170
Cooler Master NR200P case ~110
Cooler Master MasterCool 240 Lite ~90
4X Arctic P12 PST CO fans ~35 for 5, the stock cooler master vibrate a lot
Optional : Saphire "reference" AND Radeon RX 6900XT ~2300 << I did not pay for this, i did for the rest, took over 2 months to gather the money!
Might want to change the processor to Ryzen 5 5600G or ryzen 7 5700G as they have built in graphic cards that put intel to shame, the first is the same price as the above, the second should be under 300 i think.
Sans the 6900XT, the economy would be
2X8GB DDR4 3200 RAM ~60
500GB Kingston NVME SSD ~55
Corsair 500-600W SFX power supply ~120
Arctic cooler, 120mm or 92mm, ~28-35
The good thing about the fans mentioned above, this is in my bedroom mining 24h, and i can sleep!
.. and work on two big monitors while it is mining. Does not like Freecad and susperslicer though, so i have to stop mining when using those two :)
The following user(s) said Thank You: Jake

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18 Dec 2021 02:25 #229370 by Jake
Replied by Jake on topic Hardware advice for 2021
I may be shopping tonight.....

That actually looks pretty close to my current desktop....

Ryzen 7 3700x
Asus Tufgaming X570
Corsair DDR4 64G
Samsung EVO SSD's
Noctura Fans (which are AWESOME.) Nearly silent. Almost has that gentle sea sound as they accelerate and decelerate.
Fractal case
Radeon Pro WX graphics
Corsair 750w PS

The only thing this new one will get used for is on the VMC, which only gets used for it, modifying some NGC's.... I am not size constrained at all I have like a 3' wide 2' deep 3' tall spot in the cabinet this tower can get placed into.

I come back in the house and use the machine in the office when the cad work breaks out.

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