SK0-004 · Question #613
A technician is troubleshooting a hardware issue with a blade. When the technician inserts the blade into a slot, the blade will not power up. The blade will power up, however, in another chassis…
The correct answer is C. Slot in backplane. When a blade fails only in one specific chassis slot while functioning correctly in another chassis of identical configuration and no system-wide issues are reported, the fault is isolated to the physical backplane slot itself.
Question
A technician is troubleshooting a hardware issue with a blade. When the technician inserts the blade into a slot, the blade will not power up. The blade will power up, however, in another chassis that has the same configuration. The blade management software reports no issue with the chassis or with any other blades. Which of the following is the MOST likely cause of the blade not powering up?
Options
- AChassis firmware
- BChassis power supply
- CSlot in backplane
- DBlade management module
How the community answered
(20 responses)- A10% (2)
- B5% (1)
- C55% (11)
- D30% (6)
Why each option
When a blade fails only in one specific chassis slot while functioning correctly in another chassis of identical configuration and no system-wide issues are reported, the fault is isolated to the physical backplane slot itself.
Chassis firmware issues would affect all blades or the entire chassis management system equally, not prevent a single slot from powering a blade.
A faulty chassis power supply would prevent multiple or all blades from receiving power and would typically be flagged by blade management software as a chassis-level fault.
Since the blade powers up successfully in a different chassis with the same configuration, the blade hardware is not faulty. Because blade management software reports no issues with any other blades or the chassis itself, the problem is isolated to the specific slot's backplane connector, which may have damaged, corroded, or misaligned pins that prevent proper power and signal delivery to that blade.
A blade management module failure would disrupt monitoring and management of all blades in the chassis, not selectively prevent one slot from powering on.
Concept tested: Blade server slot and backplane fault isolation
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