G-Technology G-RACK 12, User Manual

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Troubleshooting
p. 250
Power Supply.
•
Standard computer power cords are supplied with the unit.
• What power supply is in the unit? features a redundant, hot-plug 920W power supply composed
of two separate power modules. This power redundancy feature allows you to replace a failed
power supply without shutting down the system. It is recommended the unit be attached to a
UPS to support the unit in the case of a wall power failure.
Networking - CAT 6 cable is recommended and shield for environments where their might be a lot of
RFI.
IPMI - What type of cable is needed for this port? Does it connect to its own switch or the same
switch as the data ports?
USB - What USB standards are supported. The server has 4 x USB 3.0 ports and 2 x USB 2.0 ports. USB
3.0 ports are faster and will support USB 2.0 devices at a degraded speed.
Power issues
UPS support - If I lose power what happens? When a power failure happens the UPS will continue
to provide power to the unit for a period of time. That time is determined by the size of batteries in
the UPS. Properly configured and featured UPS units will send a signal to the server to shutdown
properly when battery levels are low. Additionally, when power is restored and the UPS has enough
charge then the UPS can issue an IPMI command to restart the servers.
Grounding
All units must be grounded both at the chassis level and via the power cord. Failure to do so can
result in damage to the server and possible electrocution to people touching the unit. If you are
unclear about this requirement please consult a properly trained technician or electrician.
Racks for rack mounting should follow the same grounding requirements as the unit.
BIOS questions
Beep codes - My unit is beeping at me. What does it mean?
Motherboard BIOS Error Beep Codes Beep Code
•
1 beep: Refresh Ready to boot. You want this.
• 5 short beeps + 1 long beep: Memory error No memory detected in the system. You will want to
check that all memory chips are proper seated on the motherboard.
• 5 beeps: No con-in or con-out devices
• Con-in includes USB or PS/2 keyboard, PCI or serial console redirection, and IPMI KVM or SOL.
• Con-out includes the video controller, PCI or serial console redirection, and IPMI SOL.