Magma ExpressBox 3T User Manual - page 46
Magma
ExpressBox 3T | Chapter 3 Verify Installation
46
Troubleshooting
Q: If the Thunderbolt card fails to power up, what should I check?
A: Check the power stand-by cable; make sure it is firmly connected to the power receptacle of the Thunderbolt
Interface card.
Q: How do I know if ExpressBox 3T power supply is working?
A: If the Thunderbolt card is properly seated and connected, there should be two green LEDs (shown) when black
power cable is plugged in, as shown below.
Q. If ExpressBox 3T does not power up how do I determine whether I have a bad power supply, a bad
interface card or defective cable?
A: A working system should illuminate - Five Green LEDs D519, D7000, D701, D24 AND D21 on the interface card,
which are located on the top left corner.
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When you have a Bad Power Supply, you won't see any Green LEDs lit at all on the Interface card.