F5F Stay Refreshed Hardware Desktop Issue with PSU or MTHRBRD?

Issue with PSU or MTHRBRD?

Issue with PSU or MTHRBRD?

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nessie22
Member
58
01-01-2026, 12:31 PM
#1
Hello everyone, my computer won’t power on when I press the power button. It worked perfectly the previous night and never had any overheating problems. Since July 23rd, it’s been running smoothly without any issues. I’ve tried unplugging and plugging in the cables, checking the front panel cable, re-seating the RAM and GPU, even using a screwdriver to jump-start it—but nothing works. I also tested the power supply and confirmed it functions in another system. I’m unsure what’s causing this. Could be the PSU, the motherboard, or something else. Help would be greatly appreciated! Thanks, VexingLeon
N
nessie22
01-01-2026, 12:31 PM #1

Hello everyone, my computer won’t power on when I press the power button. It worked perfectly the previous night and never had any overheating problems. Since July 23rd, it’s been running smoothly without any issues. I’ve tried unplugging and plugging in the cables, checking the front panel cable, re-seating the RAM and GPU, even using a screwdriver to jump-start it—but nothing works. I also tested the power supply and confirmed it functions in another system. I’m unsure what’s causing this. Could be the PSU, the motherboard, or something else. Help would be greatly appreciated! Thanks, VexingLeon

C
ClassicoHD
Junior Member
40
01-01-2026, 04:36 PM
#2
It depends on what you mean by "does not turn on." Are you asking about total inactivity with no response, or is the device still powering on but showing a blank screen afterward?
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ClassicoHD
01-01-2026, 04:36 PM #2

It depends on what you mean by "does not turn on." Are you asking about total inactivity with no response, or is the device still powering on but showing a blank screen afterward?

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Germaindu51
Member
52
01-03-2026, 05:53 AM
#3
Yes, there was no response. No spinning fans or lights appeared on the display, only the motherboard's internal lights activated, but no action occurred when the power was pressed.
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Germaindu51
01-03-2026, 05:53 AM #3

Yes, there was no response. No spinning fans or lights appeared on the display, only the motherboard's internal lights activated, but no action occurred when the power was pressed.

S
53
01-06-2026, 02:59 PM
#4
They use diagnostic LEDs for status indicators and may have RGB lighting for aesthetics. Fans are likely present but not necessarily spinning; the system could be functioning normally. -Moved to Troubleshooting-
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SucukluPatates
01-06-2026, 02:59 PM #4

They use diagnostic LEDs for status indicators and may have RGB lighting for aesthetics. Fans are likely present but not necessarily spinning; the system could be functioning normally. -Moved to Troubleshooting-

M
Mincameow
Member
212
01-06-2026, 04:08 PM
#5
The LEDs are purely decorative, the fans remain inactive. I checked YouTube and used a paper clip on the PSU connector—power works when it's placed correctly. It might be an issue with your motherboard.
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Mincameow
01-06-2026, 04:08 PM #5

The LEDs are purely decorative, the fans remain inactive. I checked YouTube and used a paper clip on the PSU connector—power works when it's placed correctly. It might be an issue with your motherboard.

C
C00lPerFeed
Junior Member
40
01-07-2026, 04:28 AM
#6
When the PSU functions in another system, it's likely not the power supply itself. Have you found another board to test on your current setup? It's possible we collectors sometimes use spare components to experiment.
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C00lPerFeed
01-07-2026, 04:28 AM #6

When the PSU functions in another system, it's likely not the power supply itself. Have you found another board to test on your current setup? It's possible we collectors sometimes use spare components to experiment.

4
476ms
Member
203
01-27-2026, 05:08 AM
#7
You are now connected with @Crunchy Dragon.
4
476ms
01-27-2026, 05:08 AM #7

You are now connected with @Crunchy Dragon.

C
CytoPvP
Junior Member
13
01-27-2026, 12:37 PM
#8
The motherboard is the most probable cause. The PSU can be excluded since it functioned in a different setup.
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CytoPvP
01-27-2026, 12:37 PM #8

The motherboard is the most probable cause. The PSU can be excluded since it functioned in a different setup.

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Lorddoom139
Posting Freak
956
02-02-2026, 04:43 AM
#9
Have you confirmed the power switch is safe to use? If not, disconnect the power switch header from the front panel connector (power off/unplug), then connect the power supply and test the switch with a screwdriver tap.
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Lorddoom139
02-02-2026, 04:43 AM #9

Have you confirmed the power switch is safe to use? If not, disconnect the power switch header from the front panel connector (power off/unplug), then connect the power supply and test the switch with a screwdriver tap.