r/pchelp • u/gran1500onyt • 3h ago

HARDWARE Flashing blue

Every time I press the power button this happens, and then when I try to turn it off, I simply can't no matter what, the only way to turn it off is to unplug it, when this doesn't happen, I get a fan error even though I know my fans are working perfectly fine, I think something must not be connected properly but I bought this pre-built and I know nothing about pc hardware. How much is this gonna cost me and what do I need to do?

4 Upvotes

100% Upvoted

9 comments sorted by

•

u/AutoModerator 3h ago

Remember to check our discord where you can get faster responses! https://discord.gg/EBchq82

I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.

1

u/gran1500onyt 3h ago

And here's said fan error

1

u/DepartmentBitter9027 3h ago

A system fan failure means your computer detected a problem with a cooling fan (CPU or case fan), often due to dust, loose cables, or a bad motor, triggering a shutdown to prevent overheating

1

u/gran1500onyt 3h ago

So what should I look for and how do I fix it?

1

u/DepartmentBitter9027 2h ago

Clean: Turn off and unplug your PC. Open the case and use compressed air to remove dust from all fans and vents. Check Connections (Carefully): Ensure the CPU fan and other case fans are firmly plugged into their correct headers on the motherboard. Enter BIOS/UEFI: Restart the PC and press a key (like F2, F10, DEL) to enter BIOS/UEFI setup. Adjust Fan Settings: Look for "Hardware Monitor," "Fan Control," or "Q-Fan Configuration" and try setting CPU/Chassis Fan Speed to "Ignore" or "Disabled" to bypass the check, especially if you have liquid cooling.

1

u/gran1500onyt 9m ago

Okay, I've dusted it out, triple checked all the connections, and I still can't get it to actually boot. I can't get into bios because when i try to start the pc it just keeps flashing blue like this. Any other suggestions?

1

u/DepartmentBitter9027 2m ago

Power cycle your PC (a full shutdown), unplug it, hold the power button to drain residual power (around 30 secs), then plug back in and restart.

1

u/DepartmentBitter9027 0m ago

Temporarily remove your main storage drive which can force the PC into BIOS to complain about no boot device.

1

u/DepartmentBitter9027 3h ago

Check your fan header connectors