Questions tagged [power-supply]
A power supply is an electronic device that supplies electric power to another device, such as a computer, monitor or printer. This is achieved by converting wall power (or mains power) to a lower voltage, and in most cases also from AC to DC. Most power supplies also provide protection from overload, power surges and other potentially problematic or hazardous conditions.
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questions with no upvoted or accepted answers
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No POST screen, No beeps and No display
I have very old motherboard , CPU , power supply.
Motherboard : Gigabyte G31M-ES2C
CPU : Intel Pentium Dual Core E2160 @ 1.8GHz
Ram : Transcend 2GB ddr2 800MHz.
Power supply : Tech-Com 450Watt....
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Why is pin 8 on the 2x4 PCIe cable plug notched usually?
This is not about EPS 8 pin look carefully before flagging for that.
Let's look at a 8 pin PCI Express cable plug. One row has three notched connectors and one square. The problematic pin is on the ...
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Weird phenomenon : computer only boot if I plug-in a specific USB device while pressing the power button, once in 10~20 tries
I've got my hands on a very, very weird issue. I spent months trying everything, and google had literally 0 similar problem to help me.
To summarize, it's a computer I built myself 5 years ago. Since ...
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Need to reconnect power supply to boot windows 8.1/10
Please let me know if it is offtopic here. I am facing some hardware problem may be that's why I am posting it here
I have a desktop pc with dual boot(ubuntu14.04 and windows 10).
Motherboard: intel ...
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Computer only boots when my phone is plugged in?
I'm aware it's common for computers to have booting trouble because of USB devices. I have the opposite problem. My computer will not turn on unless my phone is plugged in.
If I try to turn my ...
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Are there motherboards that support dual PSUs connections?
I was thinking about how I would build myself a server with redundant power supplies.
Now they sell redundant PSU units, but they are proprietary. If one PSU in the unit fails and you want to replace ...
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PC Does not turn on
I have this weird issue, that I've had for a very long time. I've spent many hours trying to figure this out, but cannot figure it out.
I purchased a Cisnet machine around 2008, which runs Windows ...
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New Power Supply doesn't work with a specific motherboard
I just bought a new power supply Corsair CX430 V2 in order to meet the needs of a new graphics card I hope to install. The motherboard is the micro-ATX form factor Asus P5KPL-AM/PS running a Intel C2D ...
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Battery detected but will not power laptop
I have a strange issue. I recently purchased some new fans, ram, and thermal paste to do some routine maintenance on my laptop. I have an Asus ROG Scar ii Strix GL504GW. After cleaning up and closing ...
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Different results for power measurement on ubuntu using powertop and energy_uj
I want to measure power usage of the whole PC in software on Linux. I've tried these two methods from here and here:
using powertop:
rm -f powertop.csv
sudo powertop -q -t 60 -C powertop.csv
cat ...
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Laptop always turns itself on again
Since yesterday my Laptop won't turn off anymore. When I shut it down, it takes a few seconds and then it turns itself on again. Doesn't matter if I let it boot and shutdown again, or turn it of in ...
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Desktop take 10-15 seconds to turn on after pressing the power button
Just after assembling my brand new PC, i am having a delay of 10-15 seconds in booting after i press the power button on my Desktop.
For 10-15 seconds nothing happens but after that the fans , ...
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iMac G4 won’t turn on
I’m attempting to repair and old 2003 17” iMac G4 that won’t power on. It’s completely dead, no startup sound, fans don’t spin, nothing. I’ve tried the following so far:
Attempted PMU reset using the ...
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How are ATX 12 volt rails organised?
I'm looking at (flex)ATX power supplies, and notice that some have multiple 12 volt rails. For example this 400w one (https://www.fspgroupusa.com/ecommerce/fsp400-60fggba.html) has a maximum capacity ...
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How to power EATX12v 6 pin connector
I'm having trouble figuring out if and how I need to power the EATX12V_3 power slot on my Asus WS z390 Pro (Manual). I've read that the EATX12V_3 connector is used to provide extra power to the x16 ...
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