Cubix Corporation
2800 Lockheed Way
Carson City, NV 89706-0713 ● Page 9
Sales 800.829.0550
http://www.cubix.com
xprm8g3-1625urp-20170801
Access Xpander Rack Mount 16 Interior
For this procedure, use a Philips #2 screwdriver. For accessing Rack Mount 16 to add, move or
replace GPUs or other adapters, use the following procedure.
1. Shut down gracefully the host computer(s) connected to the MIB(s) you intend to access.
2. Remove the power cord(s) connected to the power supply modules.
3. Remove the secure screws holding the Rack Mount 16 in the cabinet.
4. Gently pull the Rack Mount 16 toward you a foot or so.
5. Remove the screws holding in place the Rack Mount 16 top cover, remove the top cover
and set it aside.
6. Remove the two screws holding the ventilation panel in place above the I/O panel.
7. Add, remove or replace the GPUs or other cards, making sure to seat each firmly in the slot,
secure the end bracket screws and to connect aux power cables, if necessary.
8. Replace the Rack Mount 16 front top cover and replace the four screws (front, rear and one
on each side) holding it in place.
9. Gently slide the Xpander Rack Mount 16 back in place.
10. Replace the secure screws holding the Rack Mount 16 in the cabinet.
Front Panel LCD
Rackmount 16 front panel LCD provides
enclosure details and status. Beneath the LCD
are three buttons: left button scrolls through
MIBs, middle button scrolls through the main-
menu items and right button scrolls through sub-
menu items.
When you first connect power, Xpander comes
up in standby mode. The LCD displays Cubix on
the top line and Corporation on the bottom line.
This is the Start menu. Access all other main
menu items by pressing the left button for a MIB,
the middle button for a menu selection and then
the right button for a sub-menu selection.
The upper right corner of the LCD shows a flashing asterisk *. This indicates that the on-board
Micro-Controller Unit (MCU) is running properly. If the asterisk is not flashing or the LCD is not
responding, reset the MCU by pressing and holding the left button for 3 seconds while Xpander
is running. A corresponding HB (for heartbeat) LED on the MIB also confirms that the MCU is
working.
Warning
Before installing or removing cards in the Rack Mount 16, switch off AC power and wait for
the 5V Standby LED to power off for the affected MIB.
Warning
Make sure that blank end brackets (L-brackets) are installed for each slot that has no PCIe
card, especially if the installed cards are passively-cooled GPUs. Blank end brackets are
required to assure proper cooling of the GPUs.
