Exam SK0-005 topic 1 question 134 discussion

✅ C. The power supply is faulty and is shutting down the system. Here's why: The flashing of the Num Lock, Scroll Lock, and Caps Lock LEDs is a classic POST error code (Power-On Self-Test). This often indicates a hardware-level failure, and when it happens early during boot, it's usually related to critical system components like the power supply, motherboard, or memory.

C. I'll go with C becuase it state there was a power outage before the other information was presented about the keyboard lights. Which is pointing to PSU. There could have been a power spike that could affect the PSU.

How do we know it's the video card or display card? It doesn't specifically state if we're able to see the POST/BIOS screen.. not enough information it could be either B or C. The lights on the keyboard flashing does not indicate its a video card issue to me. It could be any component like motherboard, CPU, RAM as surfuganda stated. PSU being faulty, under load and tripping makes more sense to me in this scenario.

B. The system failed before the display card initialized. Explanation: When a system fails to boot and the Num Lock, Scroll Lock, and Caps Lock LEDs flash, it usually indicates a hardware failure. However, the fact that the failure occurs before the display card initializes suggests that the issue lies deeper in the system, likely with core hardware components such as the CPU, motherboard, or RAM

Chatgbt agrees with C: "A problematic Power Supply Unit is more likely to cause the described behavior. An issue with the PSU could lead to unstable power delivery, which may trigger the server's built-in protection mechanisms, causing it to shut down. Faulty power supply units are known to cause erratic behavior, including unusual light patterns on the indicator LEDs."

The MOST likely cause of the issue is that the system failed before the display card initialized. The flashing of the Num Lock, Scroll Lock, and Caps Lock LEDs is a BIOS error code indicating that the system has failed before the display card is initialized.