Magma ExpressBox 3T, User Manual, Page: 34 / 52

Magma
ExpressBox 3T | Chapter 3 Verify Installation 34
Thunderbolt™ 2 Interface Card & LEDs
There are 10 LEDs on the Thunderbolt™ 2 Interface card. These LEDs are essential in checking the power status of
the board. It also serves as functional and failure indicators and helps in troubleshooting hardware problems.
When the Thunderbolt™ 2 Interface card is fully operational and with an external Display device attached , 7 solid
Green LEDs (D1,D3,D4,D5,D6,D7 and D9) are illuminated. See picture on FIGURE T2-A .
If you don’t have an external display attached, only 5 Green LEDs are illuminated. See FIGURE T2-B.
FIGURE T2-A
If the above LEDs are not coming ON, it is an indication that your board is not getting power or the board is faulty
or defective. Please check the Standby-power cable is firmly connected to
Thunderbolt™ 2 Interface card power
connector (J7). Make sure the
Thunderbolt™
2 Interface card is seated all the way in the PCIe slot. Try reseating
the card in the PCIE slot.
Standby- Power Cable
J7
Thunderbolt™ 2 Interface Card LEDs: Functional Mode - with external display device attached