HP Pavilion Wave Desktop - 600-a014wont turn on, power button will just blink 3 slow 2 fast.

[jjn79abq]

When I tried to turn on my computer after I have upgraded the ram the CPU will not start,  The power light goes on and it then flashes 3 times slow then 2 times fast.  I have changed out the Ram back to the original and it still happened. 

[A_Gayathri]

Hi @jjn79abq ,

Welcome to The HP Support Community.  

Thank you for posting your query, I will be glad to help you.

I understand the blinking pattern (3 slow blinks followed by 2 fast blinks) on your HP Pavilion Wave Desktop indicates a POST (Power-On Self-Test) error code. This specific pattern typically points to a memory or motherboard issue. Here’s what you can do to diagnose and potentially resolve the problem:

1. Check RAM Installation

• Ensure the RAM modules are seated correctly in their slots. Push firmly until you hear or feel a click.
• Verify that the RAM modules are compatible with your motherboard specifications (speed, type, size).

2. Test Each RAM Stick

• If you have multiple RAM sticks, try installing only one stick at a time in the first slot and power on the system.
• Rotate the RAM sticks through each slot to rule out a faulty stick or slot.

3. Inspect the RAM Slots

• Look closely at the RAM slots for bent or damaged pins.
• Use compressed air to blow out any dust or debris that might interfere with the connection.

4. Reset the BIOS/CMOS

• Disconnect the power cable.
• Locate the CMOS battery on the motherboard (a silver coin-shaped battery) and remove it for about 10–15 minutes.
• Reinsert the CMOS battery, reconnect the power, and try to turn on the computer.

5. Disconnect All External Peripherals

• Disconnect all external devices, including USB drives, monitors, and keyboards.
• Try turning on the computer with only the power cable connected.

6. Check Power Supply Unit (PSU)

• Ensure the PSU is functioning correctly and providing adequate power to the system. If the PSU is faulty, it may fail to initialize the system properly.

7. Inspect the CPU

• If the RAM and PSU checks don’t resolve the issue, the problem could be with the CPU or motherboard. Check the CPU for proper seating and thermal paste application (if you recently upgraded or moved components).

I hope this helps. 

Take care and have a good day.

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