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Cubix Corporation 

 2800 Lockheed Way 

 Carson City, NV 89706-0

713 ● Page 12 

Sales 800.829.0550 

 

http://www.cubix.com

 

 [email protected] 

 xpander-rackmount8-4u-g3 20140317 

 

Width: x1, x2, x4, x8, x

16 and “NO Link” when the host did not successfully link or Xpander is 

in standby power. 

 Sub-Menu: Link speed and link width for slots 1-6. 

 

Speed: 2.5Gb/s or 5Gb/s 

 

Slot 1-2 width: x1, x2, x4, x

8, and “NO Link” when the slot is empty, unsuccessful link, or 

Xpander is in standby power. 

 

Slot 3-6 width: x1, x2, x4, x8, x

16, and “NO Link” when the slot is empty, unsuccessful link, or 

Xpander is in standby power 

 
LCD Backlight Control 
 
Press right switch to toggle the LCD backlight On/Off. 
 
 

Shipping Procedure 

Before shipping Xpander, remove any installed graphics or other controller(s) using the 
following procedure: 
1.  Switch off the host computer connected to Xpander. 
2.  Disconnect Xpander from the HIC(s). 
3.  Remove the secure screws holding the Xpander in the cabinet. 
4.  Gently pull the Xpander toward you. 
5.  Lift Xpander down from the cabinet and set it on a stable surface. 

 
6.  Remove the screws holding Xpander top cover, remove it and set it aside. 
7.  Remove the graphics or other controllers and pack them in the original packaging. 

 
8.  Replace the hold-down brackets and tighten the captured screws. 
9.  Pack the graphics cards or other controllers within the boxes in which you received them. 
10. Replace the Xpander Rackmount Elite front top cover, replace the screws and remove the 

power cords. 

11. Remove the two outer slide mounts by sliding each out until it stops. Press the catch to 

release and remove the outer slide mount. 

12. Remove the two slide mounts from the Xpander sides. 
13. Store all of the screws, nuts and G-nuts in the plastic bag included. Tape the bag to the rails 

and wrap the rails together. 

14. Remove the HIC(s) from the host computer. 
15. Within the original packaging, pack the Xpander, the power cords, the HIC(s) and the boxed 

graphics cards. Include a copy of these instructions. 

 

Troubleshooting 

Issue: 

Cable LED inside Xpander does not light green. 

Resolution: 

Check the following: 

  Confirm that the HIC is firmly seated in a PCIe slot within the host computer. 

  Confirm that the cable connector is firmly seated HIC connector port. 

Warning 

Before lifting Xpander out of a cabinet, ask for assistance. 

Warning 

Remove GPUs or other adapters before shipping Xpander. 

Summary of Contents for Xpander Rack Mount 8 4U

Page 1: ...f eight double wide GPUs like NVIDIA Quadro or Tesla Series or Intel Xeon Phi Coprocessors Each MIB connects via a PCIe x16 cable to a HIC in a host computer Connect each MIB to one of two HICs in one host or each MIB to a HIC in each of two host computers Each MIB inside Rack Mount 8 connects to one host computer One host computer can support both MIBs inside the Rack Mount 8 enclosure if the hos...

Page 2: ...x16 cable connected 8 0Gbps 5 0Gbps or 2 5Gbps x16 link speed x16 cable Connected or not connected status Slot 1 4 x16 transfer rate theoretical PCIe Gen 3 0Gbps x16 128 0Gbps PCIe Gen 25 0Gbps x16 80 0Gbps PCIe Gen 12 5Gpbs x16 40 0Gbps LCD panel backlight Toggle on off using right button Rear panel Power input receptacles Adapter ports If available on installed controllers or adapters Receptacle...

Page 3: ...nder Rackmount 8 Boot the host computer If the host operating system OS is plug n play the OS detects the GPUs and loads device drivers Start up Installation Test Procedure with Detail Each Rack Mount 8 provides two MIBs each with four PCIe x16 slots You can connect MIBs to HICs in one host or you can connect each MIB to a HIC in each of two hosts however each MIB supports only one host computer S...

Page 4: ...ront and middle top covers and remove both top covers 5 Connect each external PCIe cable from its MIB inside the Rack Mount 8 enclosure to each host interface controller HIC port Make sure the connector snaps into place within the HIC port When you have made a successful connection the LED just inside the L bracket will light steady green as shown in the illustration at the right 6 Power on the ho...

Page 5: ...green for each MIB inside the Rack Mount 8 enclosure Xpander MIBs are functioning properly once each Cable LED P0 lights green Proceed to the next step to install adapters 8 Switch off AC power to the host computer s Leave the power cords and the external PCIe cables to the host computer s connected 9 Remove the two screws at each end of the rear ventilation panel above the rear Input Output I O p...

Page 6: ...is a passively cooled GPU 14 Replace the ventilation panel and tighten the four screws holding it in place See the image below 15 Connect GPU video port s if present to monitors This step is especially important for Linux because X Windows will crash if you have not connected video ports to monitors If you cannot connect monitors to installed GPU video ports you can edit the Device section of etc ...

Page 7: ...eplace the GPUs Make sure that you seat each GPU firmly in its slot and that you connect all aux power connectors properly Switch on Xpander and boot up the host computer 19 Install the appropriate graphics or other controller driver s using the vendor s procedure e g NVIDIA Quadro or Tesla Series 20 Replace the Rack Mount 8 front top covers and replace the screws holding it in place Normal Power ...

Page 8: ...kets Part S32760A to each rail slider assembly with the bolts and nuts provided in the packaging 7 Repeat the process for the other front and two rear mounting brackets and rail slider assembly 8 Tightly secure the screws holding the sliders to the front and two rear mounting brackets on each side of the cabinet 9 Check the two rails from each side and from front to rear to make sure that you have...

Page 9: ... the front of the cabinet 7 Lift the Rack Mount 8 enclosure line it up carefully and slide it into place Before lifting the Rack Mount 8 enclosure into place ask for assistance 8 Try sliding the Rack Mount 8 in and out slightly to make sure it moves freely 9 Connect the AC power cords into the Rack Mount 8 rear receptacles 10 Make sure the host computer s with the host adapters installed are power...

Page 10: ...IB 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 correspondin...

Page 11: ... Fan voltage adjusts from 6V min 25deg C or lower at 50 to 12V max 50deg C or higher at 100 Fan voltage is the same for all fans PWR OFF is 0V at 00 system is in standby Running aaV at pp fan is good aa fan voltage and pp fan power percent STOPPED is 12V at 100 fan fault fan voltage is set to full on No fan is aaV at pp Xpander can be configured with 1 2 3 or 4 fans No fan means fan is not install...

Page 12: ...der top cover remove it and set it aside 7 Remove the graphics or other controllers and pack them in the original packaging 8 Replace the hold down brackets and tighten the captured screws 9 Pack the graphics cards or other controllers within the boxes in which you received them 10 Replace the Xpander Rackmount Elite front top cover replace the screws and remove the power cords 11 Remove the two o...

Page 13: ...lot and that you connect all aux power connectors firmly Issue The front panel LCD screen backlight is flashing on off which indicates a fault Resolution Press the MIB button momentarily to identify the MIB with the fault Acknowledge the fault by pressing the Menu button which will stop the LCD flashing and the LCD will remain at the fault Issue After acknowledging a fault the front panel LCD scre...

Page 14: ...u g3 20140317 Issue The passively cooled GPUs or accelerators in Xpander are overheating Resolution Make sure you have installed blank end brackets L brackets for each empty Xpander slot The blank end brackets are essential to assure proper cooling especially passively cooled GPUs such as NVIDIA Tesla K40 or accelerators such as Intel Xeon Phi ...

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