All Questions
8
questions
0
votes
1
answer
632
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The purpose of PSU & motherboard -12V line
Typically PSUs have -12V line rated about 0.2 - 0.5A. But for what is it used?
Is it used for example with one of the +12V lines to get total 24V?
What component or so needs that -12V or possibly 24V?
- 105
0
votes
0
answers
1k
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12v line is showing up to 14v in BIOS (DMM reading are fine)
Purely by chance, upon rebooting, in the BIOS, I saw that 12v line was showing 13.9v, although I used the computer normally all day long.
After resetting all settings in the BIOS and reboot, nothing ...
0
votes
1
answer
3k
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3.3v rail randomly going low after a period of use
I am having a recent problem with my PC.
After a "random" amount of 100% stable running time (anything between 1 - 12 hours), the 3.3v rail will suddenly start dropping step-by-step from 3.36v to ...
- 111
2
votes
1
answer
4k
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Motherboard is showing 24v instead of 12v
I have put together a new PC build and when I turn on the machine it's showing me the following error/warning:
"Asus anti-surge was triggered to protect system from unstable power supply"
Besides ...
- 123
1
vote
0
answers
2k
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5v rails is getting 5.7v even with new PSU
I need help. I'm on my mobile typing this so i'll be word efficient. (English is not my native language and I only have a basic understanding of pc's)
What's the problem?
After the weekend I tried ...
- 11
2
votes
2
answers
4k
views
PSU blue wire reads strange voltage
I was testing my PSU with the paperclip method and checking the voltage of every wire just to be sure it is 100% functioning.
What surprised me was that every wire was working just fine but one, the ...
- 35
2
votes
2
answers
2k
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Weird voltage issues - intermittent low 5V line
My computer has developed a strange ailment: when I turn it on, the 5V power line from the PSU is very low, hovering at around 4.2V. This is intermittent however, sometimes it jumps back up to 4.98V.
...
- 145
1
vote
1
answer
3k
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What are the costs and benefits of using 12V-only motherboards? [closed]
According to my research, it sounds as though power efficiency concerns in recent years have driven some hardware manufacturers to create different power supplies and motherboards which are "12V-only"....
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