== HPCMATE U4008 ==

U4008 has been designed to provide a flexible system configuration for multi purpose high performance computer server.

[[File:U4008.png|center|frameless|446x446px]]

In brief : U4008 has been designed to provide a flexible system configuration for multi purpose high performance computer server

== U4008 Highlight ==
{| class="wikitable"
|+
!
!Default
!Option
!Notices
|-
| rowspan="2" |Power
|Single ATX 3.1 modular PSU (2000W)
|Max. 5600W by using 2+0 dual ATX 3.1 2600W
|
|-
|
|2+0 modular hot plug PSU
|Max. 4000W
|-
|Storage
|3 x 5.15" dummy cage
|Any type of 5.25" hard rack
|Partner with ICY Dock
|-
|Mother Board
|[[Support]] from Mini-ITX up to EEB (13"x13")
|Support extended [[PCIe]] 5.0 x 16 board
|Use 2 x MCIO 8i
|-
| rowspan="2" |Cooling
|Air cooling
|
|Support up to dual 500W CPUs
|-
|
|Liquid Cooling
|Compatible with [[CoolUX]]
|}

U4008 Models
{| class="wikitable"
|+
!Model
!Features
!Notes
|-
|2KHR0
|Single Socket SP5 (LGA 6096), AMD EPYC™ 9004 (TDP up to 500W)

8 DIMM slots

4 PCIe5.0 / CXL2.0 x16*, 3 PCIe5.0 x16, 1 PCIe5.0 x8**

3 MCIO** (PCIe5.0 x4 or 4 SATA 6Gb/s), 1 MCIO* (PCIe5.0 x4)

Supports 2 x M.2

Supports 4 x double width GPUs

2 RJ45 (10GbE), 1 [[IPMI]]

4 hot swap 2.5" SATA drives

Air cooling

2000W ATX 3.1 modular PSU
|Support on-demand internal configuration by user requirements
|}

== Contact ==
U4008 관련 문의는 sales@hpcmate.com으로 메일 보내주세요.

== References ==
<references />
[[Category:Article]]
[[Category:Hpcmate]]
[[Category:Tech]]
[[Category:Products]]

U4008

2026-02-08T02:46:08Z

Admin:

== HPCMATE U4008 ==

U4008 시스템은 새롭게 출시되는 다양한 제품들을 효율적으로 조합하여 고성능 컴퓨팅 노드를 구성할 수 있도록 다양한 옵션과 기능을 가진 GPGPU 시스템 솔루션입니다.

[[File:U4008.png|center|frameless|446x446px]]

In brief : U4008 시스템은 새롭게 출시되는 다양한 제품들을 효율적으로 조합하여 고성능 컴퓨팅 노드를 구성할 수 있도록 다양한 옵션과 기능을 가진 GPGPU 시스템 솔루션입니다.

== Technical Features ==

===U4008 특징===
*전원옵션
**기본 : 듀얼 ATX 모듈러 파워 (최대 5600W 구성)
**옵션 : 2+0 모듈러 CPS (최대 4000W)
*스토리지 구성
**전면 3 x 5.25" 케이지 지원으로 사용자 요구에 따른 다양한 스토리지 구성이 가능
*유연한 MB 구성
**Mini-ITX에서 EEB 사이즈의 보드 구성이 가능

*[[PCIe]]
**최대 5장의 double with GPU 장착 가능

== Contact ==
U4008 관련 문의는 sales@hpcmate.com으로 메일 보내주세요.

== References ==
<references />
[[Category:Article]]
[[Category:Hpcmate]]
[[Category:Tech]]
[[Category:Products]]

File:U4008.png

2026-02-08T02:45:42Z

Admin:

U4008

2026-02-08T02:41:33Z

Admin:

== HPCMATE U4008 ==

U4008 시스템은 새롭게 출시되는 다양한 제품들을 효율적으로 조합하여 고성능 컴퓨팅 노드를 구성할 수 있도록 다양한 옵션과 기능을 가진 GPGPU 시스템 솔루션입니다.

In brief : U4008 시스템은 새롭게 출시되는 다양한 제품들을 효율적으로 조합하여 고성능 컴퓨팅 노드를 구성할 수 있도록 다양한 옵션과 기능을 가진 GPGPU 시스템 솔루션입니다.

== Technical Features ==

===U4008 특징===
*전원옵션
**기본 : 듀얼 ATX 모듈러 파워 (최대 5600W 구성)
**옵션 : 2+0 모듈러 CPS (최대 4000W)
*스토리지 구성
**전면 3 x 5.25" 케이지 지원으로 사용자 요구에 따른 다양한 스토리지 구성이 가능
*유연한 MB 구성
**Mini-ITX에서 EEB 사이즈의 보드 구성이 가능

*[[PCIe]]
**최대 5장의 double with GPU 장착 가능

== Contact ==
U4008 관련 문의는 sales@hpcmate.com으로 메일 보내주세요.

== References ==
<references />
[[Category:Article]]
[[Category:Hpcmate]]
[[Category:Tech]]
[[Category:Products]]

U4008

2026-02-08T02:28:35Z

Admin: Created page with "== HPCMATE U4008 == HPCMATE U4008 GPGPU system has been designed to support rapid advanced computing device such as mother board, CPU and GPU. == Technical Summary == == Referendces =="

== HPCMATE U4008 ==

HPCMATE U4008 GPGPU system has been designed to [[support]] rapid advanced computing device such as mother board, CPU and GPU.

== Technical Summary ==

== Referendces ==

RIMA

2026-02-04T01:50:49Z

Admin: Admin moved page Manual:RIMA to RIMA

== RIMA ==
RIMA (Rack Information Management Analyzer) is an appliance (Hardware plus Software) product by HPCMATE. RIMA provides real-time data visualization for multiple RIM (DS7) devices and analyze features. (Internal document for RIMA - [[private:RIMA]])

== Setup guide ==

# Install RIMA 1U system at target place
# Setup network depending on customer's network environment - refer to below System Admin tab

== Access to RIMA ==

=== Over VGA ===
VGA interface of RIMA system provides RIMA Web pages on system boot-up.

=== Over network ===
RIMA provide http Web interface through '''''<host-ip>:8099''''' port.

== Dashboard ==
The dashboard provides simple summary for the registered RIM devices.

Dashboard information list are

* Total power consumption at now
* Cumulative total power consumption so far
* Maximum power consumption RIM and it's name
* Highest temperature RIM and it's name
* Time series data graph for current power consumption and highest temperature
* Registered RIM wheel and selected RIM information

=== Automatic wheel rotation ===
To show multiple RIM devices effectively, Dashboard supports automatic RIM device wheel rotation in every 5 seconds. the automatic rotation to stop when RIMA detect user action such as mouse move, click, key press and resume automatic rotation after 3 seconds of non user action.
[[File:Dashboard-rima.png|center|frameless|676x676px]]

=== System Reboot or Shutdown ===
RIMA dashboard supports system reboot or shutdown using the power icon on top right.
[[File:Rebootorshutdown.png|center|frameless|394x394px]]

=== Admin login / logout ===
System/Settings/Reports menu is only available after successful Admin login.

The factory default Admin password is 'Admin'. Admin password can be changed via Settings > Admin tab.

<big>'''''*** There is no way to recover Admin password once it has been changed. So please do not forget once it has been changed !!!'''''</big>

[[File:Rima-loginout.png|center|frameless|475x475px]]

== System ==

=== System tab ===
[[File:System-system.png|frameless|943x943px]]

System tab provides real time system resources information in every 3 seconds as well as provided license information including maximum possible RIM(DS7) devices depending on the license type. license section describes RIMA license type and allowable maximum devices.

=== Update tab ===
RIMA system package can be updated through http://update.hpcmate.com. to do so, RIMA system must be able to connect internet.

Check update button to check and show the latest available RIMA system package.

[[File:Rima system update.png|center|frameless|645x645px]]

== Settings ==

=== Admin tab ===
[[File:Settings-admin.png|frameless|932x932px]]

=== Admin Password ===
RIMA supports only one administrator account for simple and operation ownership and responsibility.

Factory default Admin's ID and password are "Admin" and "Admin". we recommend to change more secure password in production operation.

=== System IP ===

* RIMA system always supports default IP - 192.168.1.253/24 - to ensure system configuration by Admin at any IP environment
** For the initial setup, please use the default IP with direct connect to your notebook by changing 192.168.1.0/24 networks
* To Set up IP address for your environment, use the System IP menu
** Admin could set comma seperated multiple IP address using CIDR format. the first CIDR information will be used for RIMA system and others to point RIM(DS-7) devices

=== Notification Mail ===
RIMA supports real-time notification message using gmail app password to registered email list. To do that Admin needs to make Gmail's App Password. Following is an overview how to create App password and register

# Log in to your Google account or use this link <nowiki>https://security.google.com/settings/security/apppasswords</nowiki>
# Go to My Account > Sign-in & Security > App Passwords
# Put App name whatever you want then create app password
# Copy the password then put it as sendmail password along with your gmail account
# Test send mail and verify mail receiving from the RIMA

[[File:RIMA-gmail-app-passowrd.png|center|frameless]]

=== Settings > Device ===
Settings > Device tap to be used to register single or multiple RIM device into the RIMA appliance.

[[File:RIMA-devices.png|center|frameless|787x787px]]

=== Device > Settings > import ===
To add multiple RIM (DS-7) device into the device table, Admin is able to put csv format excel file using this button.

The CSV format must be the same with following example, All string is lower case and name and ip must have fields while mac and status does not used in current version of RIMA
{| class="wikitable"
|name
|ip
|mac
|status
|-
|RIM 1
|10.230.200.1/24
|
|
|-
|RIM 2
|10.230.200.2/24
|
|
|-
|RIM 3
|10.230.200.3/24
|
|
|-
|RIM 4
|10.230.200.4/24
|
|
|-
|
|
|
|
|}

=== Device > Settings > Export ===
To save current device list, Admin can export current device list using this menu.

'''''*** RIMA exports only validated IP and MAC devices'''''
{| class="wikitable"
|name
|ip
|mac
|status
|-
|RID-1234 (192.168.1.4/24, 10.230.200.1/24)
|192.168.1.4
|00:15:5d:01:df:1a
|
|-
|
|
|
|
|}

=== Device > Settings > Add(DS7) ===
Admin manually add RIM(DS 7) devices and verify device connection using the test button.

'''''*** Only licensed number of device can be added'''''

=== Settings > Threshold ===
RIMA supports automatic notification email using above notification mail to monitor each RIM's power consumption, temperature and Humidity.

Admin enable or disable real-time notification by setting real-time mail notification toggle button.
[[File:Settings threshold.png|center|frameless|876x876px]]

== Reports ==
RIMA supports overview reports up to 1 years from at the time of click this menu.

[[File:Rima-reports.png|center|frameless|577x577px]]

== License Type ==
As an appliance type of product, RIMA product has its own license type. following are the license type and maximum allowable device supports
{| class="wikitable"
|+
!License Type
!Max. supported RIM (DS7) devices
!Notes
!data retension policy
!Features
|-
|L1
|support up to 12 RIM devices
|1TB x 4ea for data storage, usable 3TB over RAID5
|1 year
|Default
|-
|L2
|support up to 24 RIM devices
|2TB x 4ea for data storage, usable 5TB over RAID5
|1 year
|Default
|-
|L3
|support up to 48 RIM devices
|4TB x 4ea for data storage, usable 8TB over RAID6
|1 year
|Adjust default action
|-
|L4
|support up to 100 RIM devices
|8TB x 4ea for data storage, usable 16TB over RAID6
|1 year
|Adjust default action
|}

== References ==
<references />

Ubuntu tips and tricks

2026-01-09T01:10:34Z

Admin:

== apt-key deprecation warning when updating system: "Key is stored in legacy trusted.gpg keyring" ==
$ sudo cp /etc/apt/trusted.gpg /etc/apt/trusted.d

== Disable Ubuntu scaning processes / candidates after package upgrades ==
Disable line that containes apt-pinvoke at /etc/apt/apt.conf.d/99needrestart<ref>https://serverfault.com/questions/1101391/disable-ubuntu-22-04s-scaning-processes-candidates-after-package-upgrades</ref>

== How to disable "Pending kernel upgrade" message?<ref>https://askubuntu.com/questions/1349884/how-to-disable-pending-kernel-upgrade-message</ref> ==
To disable "Pending kernel upgrade" via command line:

vim /etc/needrestart/needrestart.conf then uncomment this line

<nowiki>#</nowiki>$nrconf{kernelhints} = -1;

Or just replace them in one line:

sed -i "s/#\$nrconf{kernelhints} = -1;/\$nrconf{kernelhints} = -1;/g" /etc/needrestart/needrestart.conf

== Check Secure Boot enabled or not ==
<syntaxhighlight lang="bash">
$ mokutil --sb-state
SecureBoot disabled
Platform is in Setup Mode
</syntaxhighlight>Ubuntu secure boot information<syntaxhighlight lang="bash">
$ mokutil --list-enrolled
[key 1]
SHA1 Fingerprint: 76:a0:92:06:58:00:bf:37:69:01:c3:72:cd:55:a9:0e:1f:de:d2:e0
Certificate:
Data:
Version: 3 (0x2)
....
Signature Algorithm
...
</syntaxhighlight>

== Disable Ubuntu Pro marketing on APT updates<ref>https://ociotec.com/disable-ubuntu-pro-marketing-on-apt-updates/</ref> ==
This behaviour is configured via APT config file: <code>/etc/apt/apt.conf.d/20apt-esm-hook.conf</code>

So if we want to disable we need to delete it or just change its extension (more reversible):

<code>sudo mv /etc/apt/apt.conf.d/20apt-esm-hook.conf /etc/apt/apt.conf.d/20apt-esm-hook.conf.bak</code>

== Set default text editor ==
<syntaxhighlight lang="bash">
$ sudo update-alternatives --config editor (on Ubuntu)
...
Selection Path Priority Status
------------------------------------------------------------
0 /bin/nano 40 auto mode
1 /bin/ed -100 manual mode
2 /bin/nano 40 manual mode
* 3 /usr/bin/vim.basic 30 manual mode
4 /usr/bin/vim.tiny 15 manual mode

Press <enter> to keep the current choice[*], or type selection number: <enter the number>
</syntaxhighlight>

== glibcxx_3.4.26 not found ==
<syntaxhighlight lang="bash">
sudo add-apt-repository ppa:ubuntu-toolchain-r/test
sudo apt update
sudo apt install gcc-9
sudo apt install libstdc++6

</syntaxhighlight>

== Dealing with Old kernel ==
<syntaxhighlight lang="bash">
# get current running kernel
$export kv=$(uname -r | awk -F '-virtual' '{ print $1}')

# list all other installed kernel
$dpkg --list | egrep -i 'linux-image|linux-headers' | awk '/ii/{ print $2}' | egrep -v "$kv"

# remove other kernels
$sudo dpkg -r $(dpkg --list | egrep -i 'linux-image|linux-headers' | awk '/ii/{ print $2}' | egrep -v "$kv")

</syntaxhighlight>

== Remove GUI packages ==
<syntaxhighlight lang="bash">
#To remove x11 and everything that uses it, including all configuration:

$sudo apt-get purge -y libx11.* libqt.* libgtk.* xserver-xorg-core X11-* libwayland-*
$apt-get purge $(apt-cache depends gnome | grep Depends | awk '{print $2}')
$sudo apt-get autoremove -y
</syntaxhighlight>

== Switching boot target to text ==
<syntaxhighlight lang="bash">
$systemctl get-default #Find which target unit is used by default
$sudo systemctl set-default multi-user.target #To change boot target to the text mode
$sudo systemctl reboot #Reboot the system

</syntaxhighlight>

== The following packages have been kept back<ref>https://askubuntu.com/questions/601/the-following-packages-have-been-kept-back-why-and-how-do-i-solve-it</ref> ==
There are 3 categories of reasons for packages being kept back during <code>apt upgrade</code>

* It is marked as held back

<code>apt-mark</code> can do this:
<code>sudo apt-mark hold <package></code>
To list all packages marked on hold or find out if a package is on hold use:
<apt-mark showhold
apt-mark showhold <package>
To remove a hold on a package and allow it to be upgraded:
<code>sudo apt-mark unhold <package></code>

* <code>apt</code> detects a dependency change

This will tell you the current and candidate upgrade versions of the package:
<code>$ apt list <package></code>
we can figure out the changed dependencies with <code>apt show</code>:
<code>apt show <package>=<old version> <package>=<new version></code>
The important parts are the <code>Depends</code> and <code>Recommends</code> package lists. If there are new packages in those lists in the new version of the kept back package, apt won't automatically upgrade it

# To upgrade the package and install any new "Recommended" packages (i.e. as if newly installed with apt install <package>, use --with-new-pkgs:<syntaxhighlight lang="bash">
$sudo apt upgrade --with-new-pkgs <package>
(Tip: add --dry-run to see what will happen before doing it)
</syntaxhighlight>
# To upgrade the package without installing any newly added "Recommended" packages, use --only-upgrade.
<syntaxhighlight lang="bash">
$sudo apt install --only-upgrade <package>
</syntaxhighlight>

* Phased updates You can check for phased updates with: <code>sudo apt -o APT::Get::Always-Include-Phased-Updates=true upgrade --dry-run</code>

== The following security updates require Ubuntu Pro with 'esm-infra' enabled ==
the file <code>/etc/apt/apt.conf.d/20apt-esm-hook.conf</code> provides the hook that calls the marketing message generation. Removing that is an option<ref>https://askubuntu.com/questions/1452299/im-getting-the-message-the-following-security-updates-require-ubuntu-pro-with</ref>

<code>sudo mv /etc/apt/apt.conf.d/20apt-esm-hook.conf /var/tmp</code>

after then run <code>apt upgrade</code> the message does not show

== How to cleanly remove x11<ref>https://raspberrypi.stackexchange.com/questions/12670/how-to-cleanly-remove-x11</ref> ==
<syntaxhighlight lang="bash">
sudo apt purge 'x11-*'
sudo apt autoremove
</syntaxhighlight>

== apt-get update “the following signatures couldn’t be verified because the public key is not available” ==
<syntaxhighlight lang="bash">
$ sudo apt update
Err:5 https://packages.cloud.google.com/apt kubernetes-xenial InRelease
The following signatures couldn't be verified because the public key is not available: NO_PUBKEY B53DC80D13EDEF05

#need to add the missing Key B53DC80D13EDEF05
$sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys B53DC80D13EDEF05
Executing: /tmp/apt-key-gpghome.xfmtcCbrXz/gpg.1.sh --keyserver keyserver.ubuntu.com --recv-keys B53DC80D13EDEF05
gpg: key B53DC80D13EDEF05: 1 duplicate signature removed
gpg: key B53DC80D13EDEF05: public key "Rapture Automatic Signing Key (cloud-rapture-signing-key-2022-03-07-08_01_01.pub)" imported
gpg: Total number processed: 1
gpg: imported: 1

#now update will be successful
</syntaxhighlight>

== References ==
<references />

Admin:

rima-loginout

File:Rebootorshutdown.png

2025-12-24T00:51:26Z

Admin:

rebootorshutdown