All Questions
Tagged with power motherboard
173
questions
0
votes
2
answers
702
views
Laptop shows no sign of life: motherboard or power supply issue?
My Toshiba Qosmio x505-q890 laptop has suddenly stopped powering on. Symptoms are the laptop simply does not respond to the power button when pressed, but when the DC adapter is connected the adapter ...
1
vote
1
answer
267
views
100% errors from memtest86 after series of power surges; more likely to be motherboard or RAM?
The power grid where I live is unreliable, and we frequently have interruptions (and presumably surges). I usually have a UPS protecting my desktop computer, but my prior UPS developed a fault and I ...
- 31.6k
0
votes
0
answers
320
views
ASUS motherboard delayed power on, is this normal?
My new ASUS Prime Z590-A motherboard has a delay when I press the chassis power on button.
After I press it, I see some leds light in the mobo, but then a 3-4 sec delay follows, not even the PSU (at ...
- 488
0
votes
1
answer
85
views
Any idea what is going on with the power button here? When the computer is on, sometimes the button restarts it. Sometimes it keeps it off
ny idea what is going on with the power button here?
I have made these two videos.. no need to watch them all start to finish..
https://www.youtube.com/watch?v=qcC84J5jCa0 (weirdpower) 5min
https://...
- 1
0
votes
1
answer
714
views
Can't start desktop PC unless motherboard is plugged in to PSU with PSU on
A weird issue appeared on my desktop computer. After a few reboots via reset button in a row (was fiddling with bootable USB stick etc), PC refused to boot. Thought it was the PSU, but no. Then after ...
- 1
0
votes
1
answer
1k
views
Computer doesn't turn on when pressing the power button
It's not that it doesn't boot, but that the computer simply doesn't turn on. Absolutely nothing happens when I press the power button. Strangely enough, at some point it does turn on. This time it ...
- 101
0
votes
1
answer
473
views
Adding a power button to laptop for using as SBC
My laptop power button is included with the keyboard. And when I remove the keyboard from the keyboard port of motherboard, there is no way to start the laptop.
The reason I want to remove keyboard is:...
- 106
2
votes
0
answers
1k
views
Toshiba laptop turns on then off after 5-10 seconds, with or without AC charger or battery connected
My relative has a Toshiba Satellite C50-A-19T laptop with an Intel Celeron 1005M. She left it for a bit to do some work, with the laptop just sitting there with Chrome open. Then, Windows decided to ...
- 135
1
vote
1
answer
58
views
Surge protector behaving strangely
I just bought this surge protector which has the master/slave function, so that it disables some plugs (2 monitors and 2 speakers) when I turn off my PC. Everything is working fine except for one ...
0
votes
0
answers
7k
views
Is the KTS lithium battery for my motherboard broken, or is it something else?
For the past few months, I have been having some problems with my PC that involve it not powering on when everything is connected as it should be, e.g. power cable plugged in, power supply switched on ...
0
votes
1
answer
719
views
Trying to better understand how motherboard USB 2.0 and USB 3.1 Gen1 ports max combined APS is calculated
So, I've searched dozens of similar questions on SuperUser and they all seem to focus on MAX power output on a USB PORT and do not mention anything about the total max a motherboard will be able to ...
- 1
0
votes
2
answers
9k
views
Computer will not turn on after replacing CPU, PSU, and motherboard
I recently replaced the PSU, motherboard, and CPU after my computer shut off randomly. Now when I try to turn it on, I get no response.
I've tried:
Taking out the RAM
A CMOS reset
Swapping out the ...
0
votes
1
answer
2k
views
Why does my mouse and keyboard backlight flash even though my computer is switched off?
Both my mouse and keyboard are backlit.
Normally the backlight is on when the peripherals are connected to a powered on computer and off when the peripherals are disconnected or are connected to a ...
- 12.9k
0
votes
1
answer
1k
views
Computer turns on and then off after a few seconds when front panel is connected, but works normally without it
My computer is almost 3 years old by now, and last night I noticed it turning on and off randomly for a few seconds, multiple times. I tried to turn it on to investigate, but it didn't react to the ...
CommunityBot
- 1
1
vote
1
answer
8k
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PC Turn on when connected to power without pressing power button
I need some help with my strange behavior of my new PC.
My setup is
AMD Ryzen 5 3500X
MSI B450-A Pro MAX
Colorful igame gtx 1660 super
Klevv bolt-X 2x8 GB
PSU be quiet system power 9 500W
The problem ...
