On 2/2/22 22:38, Chris Albertson wrote:
About disk drives... We've all seen how a Linux Demo CD can boot and
run off the CD using RAM as a "fake" disk drive. Tis is how all the Linux
installs are done or if you want to just try Linux and not write anything
to you hard drive.
It is also possible to boot from a network server, like you bot off a CDROM
and then run on the RAM disk. Then once running the PC can mount a disk
over the network and have access to any number of terabytes from a server.
read/write speed is limit by the network cable to about 100 megabytes per
second buy that is very usable.
I think LCNC could be run this way, with no disk at all on the PC.
I used to work at a place that had many of the corporate desktop PCs
configured to run like that, with no internal storage at all. You think it
might be slow but RAM-disks are even faster than SSDs by at least 10X.
They are small but they only hold scratch files
Twenty five years ago I had a Sun Microsystems machine like that. I had
it on my kitchen table to read mail while I ate breakfast. Completely
silent.
On Wed, Feb 2, 2022 at 8:25 PM Chris Albertson <albertson.ch...@gmail.com>
wrote:
They use a really tiny ATX power supply that convert the 12 volt input to
whatever the ATX pins are. These things cost about $20 The power supply
is some small it is built into the cable
https://www.amazon.com/Power-Supply-Htpc-Mini-box-Mini-itx/
<https://www.amazon.com/Power-Supply-Htpc-Mini-box-Mini-itx/dp/B00QVK3ZPU/ref=sr_1_6?crid=1AAP9OO84LECA&keywords=mini+atx+pico+power+supply&qid=1643862229&s=electronics&sprefix=mini+atx+pico+power+supply%2Celectronics%2C124&sr=1-6>
On Wed, Feb 2, 2022 at 7:32 PM Andy Howell <a...@gamubaru.com> wrote:
I
On 2/2/22 20:08, Chris Albertson wrote:
I followed that link. Wow, that is a good deal. Especially when you
look at the power supply. It uses a 12 volt barrel jack and a large
size
wall-wort. The CPU burns all of 6 Watts. It could run on battery
power.
It is good to look for low-power PCs if they are going to run all day,
every day. The cost of power really adds up. The bix Xeon powered HP I
use for development work costs maybe 12 cents an hour. That is about
$400
at the end of the year.
The machine I use to power LCNC and my 3D printer is an Intel i5 and I
could justify downgrading it based on power-saving along. I had not
realized there was such things at 6 Watt quad-cord Intel CPUs.
Chris,
Its says it uses a ATX 24pin power supply. Hope that is right, I'd
rather not have rig up an external supply for it. Though I do have a
couple that would work.
Yeah, this will run 24/7. Like lights, the kids don't turn them off.
I had a bunch of development servers in room in my garage. Noise and
heat drove me to build the room.
Thanks,
Andy
On Wed, Feb 2, 2022 at 3:35 PM Andy Howell <a...@gamubaru.com> wrote:
On 2/2/22 16:31, gene heskett wrote:
On Wednesday, February 2, 2022 4:42:22 PM EST Andy Howell wrote:
I was hoping to update to a recent Debian and LinuxCNC version.
However, I have a 32bit motherboard. This is for our school, so I'm
trying to contain cost by just replacing the motherboard.
Any suggestions for a 64bit mini-itx motherboard?
Most any NEW mobo today will need a new cpu too since the sockets are
changed and probably won't take your old memory for the same reason.
ATM I'm running a normal sized Asus Z370-AII with the cheapest 6 core
i5
on it and I'm as happy as I can be. Asus makes decent stuff. Draws
about
140 watts less than the phenom it replaced.
And stay away from OLOy memory, I had a failure and they needed more
data
than I had to replace it, so I had to buy a different brand to replace
it. That's BS, so be sure, get it in writing, that you can get in
warranty replacements by simply shipping the bad one back with a
photocopy of the bill of sale. If they won't do that, go down the
list to
the next vendor.
Gene,
It looks like most of the Mini ITX boards have the cpu soldered in. I
don't imagine I'd need a lot of memory. 2GB maybe?
Looks like this will do the trick. $200 with 2GB of memory.
https://www.onlogic.com/pd14ri/
Thanks,
Andy
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Chris Albertson
Redondo Beach, California
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