Dell Optiplex 9020 micro anyone use them

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02 Mar 2021 00:59 #200750 by my1987toyota
I was looking on Ebay for a compact computer for my Dad as a small multi media T.V. setup
and I came across a few Optiplex 9020M's. So naturally I started wondering would these make a good
LinuxCNC computer? I know they don't have an optical drive but that really isn't a problem .
Has anyone had experience with these machines and if so how well did it work ?

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02 Mar 2021 16:14 #200798 by tommylight
Had one of those in the SFF form a few years back, it is still running a 2.5X1.5m router with Mesa 7i76E. Never had well anything, it just works.
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02 Mar 2021 23:20 #200851 by my1987toyota
hmm I may get one and change out using the Optiplex 7010 for it.

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23 May 2021 17:42 #209926 by my1987toyota
Well I just got one off of Ebay I can't wait to test it. We will see if the 7010 SFF becomes the lathe computer or the 9020M.
I am hoping the 9020M works out because it will then reside behind the monitor.

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03 Jun 2021 01:42 - 03 Jun 2021 01:46 #211048 by my1987toyota
The 9020micro just arrived . Preliminary tests after loading linux mint19.3 with linuxcnc are promising. I loaded 5 GLX gears ran a
few Youtube video's and got a max jitter of
15070 ns on the servo thread and
53590 ns on the base thread.
This weekend I will have time to do the scripted test and see how it really does.
Some specs for the 9020micro.
mine has a 1TB crucial MX500 SSD an intel i5 4590T and 8gb ram

i.dell.com/sites/csdocuments/Business_sm...nical_Spec_Sheet.pdf
Last edit: 03 Jun 2021 01:46 by my1987toyota. Reason: spelling correction

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05 Jun 2021 13:24 - 05 Jun 2021 14:28 #211212 by my1987toyota
initial script test results are in . A few tweeks will be needed . The cooling fan is one of them. as in it just needs to stay on. LOL

hw. file
LinuxCNC pc tests, version 20200930, started 05.06.2021 06:53:13
********************************************************************************
General info:
Dell Inc.,  OptiPlex 9020M
Bios version A14, dated 06/27/2017
Chipset: Intel Corporation 8 Series/C220 Series 
Harddisk is non-rotational, ie. SSD
The amount of swap currently used is 0
================================================================================
CPU related data:
model name	: Intel(R) Core(TM) i5-4590T CPU @ 2.00GHz
cpu cores	: 4
stepping	: 3
cache size	: 6144 KB
================================================================================
RAM related data:
Maximum Capacity: 16 GB
Size: 4096 MB
Size: 4096 MB
================================================================================
GPU related data:
product: Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller
configuration: driver=i915 latency=0
================================================================================
Parallel port related data:
number of parallel ports is 0
================================================================================
Os and desktop related data:
PRETTY_NAME="Linux Mint 19.3"

Should the info below not match with your machine,
kindly post the output of pstree here, including a brief
desciption of your desktop environment, window manager and
display manager. Tia
https://forum.linuxcnc.org/18-computer/39370-script-for-automated-testing-of-computer-latency

Desktop environment : lightdm
Windowmanager       : Xfwm4
Displaymanager      : lightdm
================================================================================
Kernel related data:
Kernel 4.19.106-rt46-lcnc
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
Cpu idle driver: intel_idle
================================================================================
Kernel modules data:
Check if pcspkr is loaded: No, which is good!
Check if snd modules are loaded: Yes, may cause bigger latency.
  can probably be disabled in bios, alternatively, you can run
   "./block-snd-modules"
   which has just now been created for your convenience. 
================================================================================
Keyboard & Mouse related data:
Number of mice: 1
Mouse 0 : PixArt USB Optical Mouse
Mice  attached to USB:
Keyboards attached to USB:
Dell Computer Corp. Keyboard
================================================================================
LinuxCNC related data:
LinuxCNC version is: 2.8.0
================================================================================
Preparing for latency test:
Started glxgears No. 1, 2, 3, 4, 5
..........
Started firefox with 'https://vimeo.com/150574260', WID 
================================================================================
Command for latency test is:
su cnc002 -c  "latency-histogram --nobase  --sbinsize 1000 --nox 2>&1 | tee -a 1622890307.lat &"

Latency testing loop started Sat Jun  5 06:53:26 EDT 2021, 
should end after Sat Jun  5 08:53:26 EDT 2021

================================================================================
Swap useage: prerun: 0, running: 0

================================================================================
CPU core temperatures:
Core 0: Tmin: 34.0°C, Tmax: 62.0°C, (high = +69.0°C, crit = +75.0°C)
Core 1: Tmin: 35.0°C, Tmax: 62.0°C, (high = +69.0°C, crit = +75.0°C)
Core 2: Tmin: 35.0°C, Tmax: 63.0°C, (high = +69.0°C, crit = +75.0°C)
Core 3: Tmin: 36.0°C, Tmax: 64.0°C, (high = +69.0°C, crit = +75.0°C)
================================================================================
last latency data is as follows:.
 7201 secs  servo min: -44.500 uS max:  42.000 uS sdev:   2.000 uS
 7202 secs  servo min: -44.500 uS max:  42.000 uS sdev:   2.000 uS

last bit of lat. file
 7197 secs  servo min: -44.500 uS max:  42.000 uS sdev:   2.000 uS
 7198 secs  servo min: -44.500 uS max:  42.000 uS sdev:   2.000 uS
 7198 secs  servo min: -44.500 uS max:  42.000 uS sdev:   2.000 uS
 7199 secs  servo min: -44.500 uS max:  42.000 uS sdev:   2.000 uS
 7200 secs  servo min: -44.500 uS max:  42.000 uS sdev:   2.000 uS
 7200 secs  servo min: -44.500 uS max:  42.000 uS sdev:   2.000 uS
 7201 secs  servo min: -44.500 uS max:  42.000 uS sdev:   2.000 uS
 7202 secs  servo min: -44.500 uS max:  42.000 uS sdev:   2.000 uS
Core 0:        +60.0°C  (high = +69.0°C, crit = +75.0°C)
Core 1:        +61.0°C  (high = +69.0°C, crit = +75.0°C)
Core 2:        +60.0°C  (high = +69.0°C, crit = +75.0°C)
Core 3:        +61.0°C  (high = +69.0°C, crit = +75.0°C)

so far very promising. I will do some more testing though to to see what It can do. :)
I also want to see if I can get the CPU temps down

Hey tommylight how does it compare to the full size or SFF 9020 ?
Last edit: 05 Jun 2021 14:28 by my1987toyota.

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05 Jun 2021 15:36 #211225 by tommylight

Hey tommylight how does it compare to the full size or SFF 9020 ?

Just posted about that in the other topic, had two of them, the SFF version, very good and still in use with LinuxCNC and Mesa 7i76E. Been over 2 years. Did you get the one with the ADATA 256GB SSD? Damn that thing was fast, read and write in the 560MB/s ! Not fast for today's NVME though.
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05 Jun 2021 15:45 #211226 by my1987toyota

Hey tommylight how does it compare to the full size or SFF 9020 ?

Did you get the one with the ADATA 256GB SSD? Damn that thing was fast, read and write in the 560MB/s ! Not fast for today's NVME though.


no mine came with a Samsung PM871 256 gig SSD. It has windows 10 PRO loaded on it . As soon as I had recived the computer I had a brand new crucial MX500 1000GB SSD ready to go in.
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05 Jun 2021 16:21 - 05 Jun 2021 16:23 #211228 by my1987toyota
test number 2 . Part of the way through the test I put a case fan in front of the case vents . It definitely made a difference.

unfortunately I couldn't find any setting in the BIOS to change the fan speed ( LAME ). So external fan it is . LOL.

#2 test results we bewildering with my new settings it actually did slightly worse.

BIOS
in System Configuration-
I disabled the audio

in Performance-
C states disabled
intel Speedstep disabled

in Power Managment-
deep sleep disabled
Block sleep enabled

in Wireless
WLAN/WiGig disabled
Bluetooth disabled

results hm. file
LinuxCNC pc tests, version 20200930, started 05.06.2021 09:54:53
********************************************************************************
General info:
Dell Inc.,  OptiPlex 9020M
Bios version A14, dated 06/27/2017
Chipset: Intel Corporation 8 Series/C220 Series 
Harddisk is non-rotational, ie. SSD
The amount of swap currently used is 0
================================================================================
CPU related data:
model name	: Intel(R) Core(TM) i5-4590T CPU @ 2.00GHz
cpu cores	: 4
stepping	: 3
cache size	: 6144 KB
================================================================================
RAM related data:
Maximum Capacity: 16 GB
Size: 4096 MB
Size: 4096 MB
================================================================================
GPU related data:
product: Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller
configuration: driver=i915 latency=0
================================================================================
Parallel port related data:
number of parallel ports is 0
================================================================================
Os and desktop related data:
PRETTY_NAME="Linux Mint 19.3"

Should the info below not match with your machine,
kindly post the output of pstree here, including a brief
desciption of your desktop environment, window manager and
display manager. Tia
https://forum.linuxcnc.org/18-computer/39370-script-for-automated-testing-of-computer-latency

Desktop environment : lightdm
Windowmanager       : Xfwm4
Displaymanager      : lightdm
================================================================================
Kernel related data:
Kernel 4.19.106-rt46-lcnc
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
Cpu idle driver: intel_idle
================================================================================
Kernel modules data:
Check if pcspkr is loaded: [0;32mNo, which is good![0m
Check if snd modules are loaded: [0;31mYes, may cause bigger latency.[0m
  can probably be disabled in bios, alternatively, you can run
   "./block-snd-modules"
   which has just now been created for your convenience. 
================================================================================
Keyboard & Mouse related data:
Number of mice: 1
Mouse 0 : PixArt USB Optical Mouse
Mice  attached to USB:
Keyboards attached to USB:
Dell Computer Corp. Keyboard
================================================================================
LinuxCNC related data:
LinuxCNC version is: 2.8.0
================================================================================
Preparing for latency test:
Started glxgears No. 1, 2, 3, 4, 5
..........
Started firefox with 'https://vimeo.com/150574260', WID 60817490
================================================================================
Command for latency test is:
su cnc002 -c  "latency-histogram --nobase  --sbinsize 1000 --nox 2>&1 | tee -a 1622901284.lat &"

Latency testing loop started Sat Jun  5 09:55:08 EDT 2021, 
should end after Sat Jun  5 11:55:08 EDT 2021

================================================================================
Swap useage: prerun: 0, running: 0

================================================================================
CPU core temperatures:
Core 0: Tmin: 44.0°C, Tmax: 57.0°C, (high = +69.0°C, crit = +75.0°C)

in last bit of lat. file
7197 secs  servo min: -42.800 uS max:  48.100 uS sdev:   1.800 uS
 7198 secs  servo min: -42.800 uS max:  48.100 uS sdev:   1.800 uS
 7199 secs  servo min: -42.800 uS max:  48.100 uS sdev:   1.800 uS
 7199 secs  servo min: -42.800 uS max:  48.100 uS sdev:   1.800 uS
 7200 secs  servo min: -42.800 uS max:  48.100 uS sdev:   1.800 uS
 7201 secs  servo min: -42.800 uS max:  48.100 uS sdev:   1.800 uS
 7201 secs  servo min: -42.800 uS max:  48.100 uS sdev:   1.800 uS
 7202 secs  servo min: -42.800 uS max:  48.100 uS sdev:   1.800 uS
Core 0:        +46.0°C  (high = +69.0°C, crit = +75.0°C)
Core 1:        +44.0°C  (high = +69.0°C, crit = +75.0°C)
Core 2:        +45.0°C  (high = +69.0°C, crit = +75.0°C)
Core 3:        +46.0°C  (high = +69.0°C, crit = +75.0°C)

any thoughts ?
Last edit: 05 Jun 2021 16:23 by my1987toyota.
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05 Jun 2021 16:30 #211229 by tommylight
Yes, not much has changed !
I never bother disabling anything on PC's with such good latency, they do not have parallel ports so why bother.
The latency is very good as such, wire in the Mesa and move something ! :)
BTW, fan speed on such PC is in hardware or power sections sometimes labelled as noise something or another, or quiet/normal/performance.
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