The PC activates and deactivates in a continuous cycle.

F5F Stay Refreshed Hardware Desktop The PC activates and deactivates in a continuous cycle.

The PC activates and deactivates in a continuous cycle.

The PC activates and deactivates in a continuous cycle.

M

Mirrorous
Member

148

08-09-2025, 08:55 AM

#1

After rearranging parts in my PC and trying to power it on, it remains active for 1-10 seconds before shutting off again at random times. Yes, I’ve tested all main power cables from the PSU, unplugged RAM, and checked them individually, but the issue persists. There’s no video output, and the system keeps turning on and off unpredictably. The PSU also clicks during these intervals, which seems like a power surge switch, though I’m unsure what’s triggering it. Additionally, one of the top lights in my case is only showing a red light. Anyone have any advice?

M

Mirrorous

08-09-2025, 08:55 AM #1

After rearranging parts in my PC and trying to power it on, it remains active for 1-10 seconds before shutting off again at random times. Yes, I’ve tested all main power cables from the PSU, unplugged RAM, and checked them individually, but the issue persists. There’s no video output, and the system keeps turning on and off unpredictably. The PSU also clicks during these intervals, which seems like a power surge switch, though I’m unsure what’s triggering it. Additionally, one of the top lights in my case is only showing a red light. Anyone have any advice?

N

NG_ZEERO
Junior Member

44

08-13-2025, 07:59 PM

#2

also confirm that every motherboard connection is solid; all cable-to-header contacts are fully connected, the CPU cooler is correctly placed, the board remains securely attached to the case, and so on.

N

NG_ZEERO

08-13-2025, 07:59 PM #2

also confirm that every motherboard connection is solid; all cable-to-header contacts are fully connected, the CPU cooler is correctly placed, the board remains securely attached to the case, and so on.

A

ADIR_4444
Senior Member

417

08-16-2025, 07:59 PM

#3

Disconnect all disks and discs, test.
Unplug the GPU, test.

A

ADIR_4444

08-16-2025, 07:59 PM #3

Disconnect all disks and discs, test.
Unplug the GPU, test.

R

ruizpablo7
Junior Member

19

08-16-2025, 08:18 PM

#4

I've attempted both of your suggestions, yet the issue remains unresolved.

R

ruizpablo7

08-16-2025, 08:18 PM #4

I've attempted both of your suggestions, yet the issue remains unresolved.

J

jammintan418
Member

192

08-16-2025, 08:30 PM

#5

Psu+mobo+cpu/hsf+1 stick of ram.....test.
If no assistance moves the mobo onto a piece of cardboard.....test.

J

jammintan418

08-16-2025, 08:30 PM #5

Psu+mobo+cpu/hsf+1 stick of ram.....test.
If no assistance moves the mobo onto a piece of cardboard.....test.