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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My computer runs fine on inverter power but can't turn on from off state. Will using an UPS between computer and inverter fix the issue?
A 900 watt sine wave inverter (with battery) is connected to mains. The PSU of my computer is 1000 watts. When there is power outage, my computer runs perfectly fine. But if it is already off, I can't ...
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Power supply problems
I recently had a laptop that would not boot a range of things.
It would not boot the existing installation of windows for the SSD.
It would not boot Ubuntu from a USB.
It would not boot the OEM ...
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Gigabyte GA-H170M-D3H boot loop power issues and no display
Since I updated my BIOS version to the latest version on the GIGABYTE motherboard manufacturer's website (F23F version) I started experiencing a series of different and strange problems
Then when I ...
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Laptop Docking Station not detecting HDMI Monitor when connected via type C cord
I have a Lenovo Legion laptop and a dell monitor. Also have seperate keyboard and mouse which i use for gaming.
I bought the Dock by Honeywell(https://amzn.eu/d/1gtN4ZN), which comes with a small Type ...
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Is connecting a MacBook air to a monitor using a USB-C to HDMI adapter bad for the MacBook in the long run?
I have in the past used accessories that drew too much power from a device that damaged the device, which proceeded to have a lot of problems with it powering off by itself. (Those accessories didn’t ...
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Dell Latitude not charging over USB-C PD 3.1 when powered on. It can charge, but only when I power it off
I have a somewhat weird problem where my Latitude 7300 won't charge over USB-C port when powered on with a specific non-Dell charger; I can charge the Latitude, but only when I power it off. The ...
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Do all external hard drives require a power supply with positive polarity?
I am shopping for an AC/DC power adapter for an external hard drive, and I've noticed that the power supply required for the couple of the external hard drives I looked at is always with positive ...
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PC is not powering on
I put my windows PC into sleep mode and came back hours later to see it completely powered off. Pressing the power button does absolutely nothing. Here's what I've tried:
I/O switch set to I
verified ...
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Why I'm experiencing boot up issues a few days after swapping my CPU?
I’m experiencing issues on my PC few days after I swapped the CPU, AIO and SSD. I was playing a game when my PC abruptly turns off and restarts, and whenever it gets to desktop or even in the login ...
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Corsair CV450 PSU with RX 6500 XT GPU causes PC hard shutdown when gaming
Playing games such as Fallout 4 on Ultra, XCOM 2 on High or even Civilization 6 causes my computer to hard shutdown without any notification or BSOD verbose. It seems to only happens when playing ...
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Dell Inspiron 15-5558 - A battery with low health is detected, charged, but not used
I've been using Dell Inspiron 15-5558 laptop for more than 8 years without replacing the battery (cause I've been mostly using AC charger only) and today I've encountered an issue when the laptop has ...
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SATA/SSD 2.5'' to USB laptop connection dont show up
I have several 2.5'' SATA/SSD disks that I want to read in a laptop.
I bought a common SATA/SSD to USB 3.0 adapter but most don't show up and they are silent (no spinning)
I strongly suspect the ...
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Usage of 8-pin connectors and 12VHPWR connector between PSU and RTX 3090 [pictures]
My PSU is 1000W Asus TUF Gaming Gold https://www.verkkokauppa.com/fi/product/867676/Asus-TUF-Gaming-1000W-ATX-virtalahde-1000-W
My GPU is MSI Suprim X RTX 3090 which needs three (6+2pin PCI-E) ...
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Intermittent computer Shutdowns/Reboots. IS PSU malfunctioning?
My desktop is rebooting intermittently. I did look through Windows logs but they were not very helpful. One log shows as failed to create an error dump file!
Here is my computer info:
OS Name ...
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8-pin EATX12V on motherboard but new PSU does not support that
I have an ASUS H170 Pro Gaming Intel H170 motherboard (specs: https://dlcdnets.asus.com/pub/ASUS/mb/LGA1151/H170_PRO_GAMING/E10499_H170_PRO_GAMING_Guide_WEB_only.pdf?model=H170%20PRO%20GAMING - page ...
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My PC is not turning on at home but works perfectly fine at the repair shop
My PC is not turning on at home but works perfectly fine at the repair shop. I went to the shop many times, when I bring it back from the shop and try to turn it on, sometimes it turns on for the ...
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How can I prevent apcupsd from managing the PC, and leave it to a custom script?
I bought myself a old APC Back-UPS CS650 uninterruptible power supply, and replaced the accumulator in it with a large lead-acid one, it coincides in voltage with the stock accumulator. I connected ...
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How Can I Install 3rd Gen CPU to My 2nd Gen Motherboard
Motherboard: Gigabyte H61M-S2P-B3 rev 1.0
CPU: Intel Core i3-2100 3.1GHz
Graphics Card: AMD HD 6570 1GB
RAM: 2x8 1600MHz (I believe at 1333MHz)
Power Supply: Casper WIN-400PS 400 Watt
My issue is ...
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How to correctly use 2 PSUs in a multi-GPU server
I am in the process of building a personal multi-gpu server for deep learning projects. Currently, I have 4x 4090 and 2x 1600W Superflower Titanium PSUs. The GPUs will be connected to the motherboard ...
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HP P160 Sata Power to PCIe Power
My HP ProDesk 400 G9 sff has a 6-pin power output (P160 SATA Power) on its motherboard to deliver power to HDDs and other SATA devices. I wanted to know if it's possible to use this socket, with some ...
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Connect plug to plug for laptop
Is it OK to Laptop PSU -> Plug-1 -> Plug-2 -> Wall Socket?
Problem: Plug 1 can accept PSU forks, but its forks are too thick for Wall Socket. Plug 2 fits in Wall Socket, but cannot accept PSU ...
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Why does pulling the power cord and then pressing the power button down solve the Bluetooth issue?
Recently I had an issue with Bluetooth on my laptop. It didn't show up in settings and did not work. So I pulled the psu and press power button for 30+ seconds and it solved my problem. As far as I ...
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Can i use a server PSU on a 24 port switch?
I have got a broken switch, the part that is broken of the switch is the psu, i have a 450w psu from a old server i know it is working and i noticed that they are physically the same, but the original ...
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Blackscreen with GPU fans at max speed
Sympton:
During some games, after 2-20 Minutes a black screen appears
CS2, CS:GO, Anno 1800 suffer from blackscreen
Did not get a single black screen playing hours of COD
Sound is still playing in ...
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Lenovo 14-pin PSU confusion
I have a Lenovo IdeaCentre from 2014 as my main rig. I was about to replace the GPU (a GT 705) with a GTX650Ti that I have from my friend's old rig. I realised it needed a PCIx power, and I have a ...
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USB HUB buzzing noise when power connected to same charger as laptop
My laptop is powered using a 3rd party GaN charger which provide 2 more (typec-max65w, typea-max18w) charge ports for convenience. I have a usb3.1g2 hub connect to my laptop's dedicated type-C port. ...
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Why laptop has 5v power when its off?
I recently bought a PC. the motherboard is z690 p ddr5. I did not have a modern monitor so I also bought a mini HDMI to VGA adapter and used it to connect my pc to the monitor. the convertor itself ...
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Asus laptop draws power from socket only when power-off/sleeping/hibernated
I have three year old Asus laptop running Windows 11. A month or so ago, it occasionally started failing to draw power from the socket when the laptop is in use. The battery was completely worn out so ...
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100w USB-C to DC power adapter charging issues
I've been encountering some issues with a custom charging setup for my Razer Blade 15 laptop. My blade is a 2020 model that does not support USB-C charging. I wanted a more compact solution than the ...
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EVGA GT1300 doesn't power 4TB Dell SAS drives from its SATA connectors, but does when connected to Molex; Why?
I've been having problems with enrolling some SAS hard drives (on a ZFS ZOL system of mine).
I had an EVGA 600w power supply. I thought maybe it was that or cables. I replaced the cables, still had ...
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Compatibility Issues with Lenovo and ThinkPad Docking Station
I recently purchased a new computer along with a docking station. According to Lenovo, the two should be compatible. After all, their website states that this docking station should work for the ...
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Why is there a seemingly big difference in power supply input and output watts?
Looking at a power supply like:
I notice there seems to be a big difference between the AC input watts(240V x 5.5A = 1320W) and DC output watts (860W)
I read on this answer that Virtually all power ...
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Can I replace Corsair RM750X 750W v2 with Corsair CMPSU-450VX for testing purposes?
I recently encountered a problem where I suddenly got no signal to display after my computer has worked for 4 years superuser question. I still have no idea how to solve it but I got access to an old ...
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CPU LED on motherboard and need to reinstall processor every cold boot
Specs:
Aorus B550 Pro Ax Rev.1
5600x
MSI gaming x 3060ti
16GB single stick 3666MHz
A few days ago, I had an electricity cut suddenly. The computer shut down.
After the electricity came back, I tried ...
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Multiple voltage and power output information on power adapter for Huawei Mateview
I am trying to replace a broken (transparent oil-like fluid leaking) power supply adapter for a Huawei Mateview (28') monitor and multiple declarations for the output wattage and voltage are causing ...
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Desktop CPU run then stop after 1 or 2 seconds
I'm having an issue with my desktop computer every time I try to run it. It just start happening couple two weeks ago. So what's actually happening is that when I'm trying to run it and press the ...
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PC wont turn on
My desktop PC doesnt't turn on after I shut it down by using the power switch. If I don't use power switch to turn off the PC, it will turn on properly.
Also, when I try to turn it on the mouse lights ...
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Connecting 3-pin buzzer to 4 pin System warning speaker
I am trying to connect a three-pin Buzzer to my Motherboard system warning speaker pins to hear the beep codes. I connected the VCC to +5V and GND to GND on the motherboard. I am not sure if this is ...
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Laptop power button seems to be disconnected
I've always had this issue with my laptop where it needs the power to be drained from the motherboard before it can start normally (7 year old laptop). And I've learned to do the whole, pressing down ...
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Is making a molex to barrel jack safe?
I have a rockpro64 which requires a DC input of 12v at 5amp and I'm building a NAS which has a pc power supply in it. If I modify a molex so that it outputs to a barrel jack is that safe?
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No Hard Disk found Message on Boot up, SSD Map: Cannot find required map name
I had this issue "Motherboard saying that it cannot find required map name."
The referenced approach included the description:
So this is what is showed:
EFI Shell Version 2.31 [4.633]
...
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which PSU cable goes where on the MB please
Sorry about the newb post, but I'm completely newbie at modular PSUs and having trouble installing mine
I bought this PSU: be quiet! Straight Power 11 Platinum 750W
https://www.amazon.co.uk/dp/...
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Upgrading system motherboard to Gigabyte GA-Z97X-Gaming 3 but I dont have required 8 pin cpu connector
My PSU only has a 8(6+2)pin connector, a 4pin connector, a molex connector and sata connector. I tried plugging this into the motherboard only to discover that it doesnt work. I did some googling and ...
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4pin CPU connectors on HP Omen 45L
I'm replacing PSU in my Omen HP 45L and having an issue figuring out what the two 4pin power connectors are on the motherboard.
The new PSU is modular (MSI MPG A1000G) and doesn't come with 4pin cable ...
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use DC power while plugged in without charging the battery?
I'm aware that keeping the battery fully charged is bad for the battery health. However, I often need to use my computer and it easily consumes a lot of battery power in a short time. (connected to an ...
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Wind burst turns on computer from sleep
From time to time I manage to have my computer at sleep mode while I make some wind blow onto the computer. Like when shaking out the blanket or closing the door rashly. This computer configuration ...
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I have a dead battery and my laptop refuses to come out of power saving mode even while charger is connected
I have an Acer e5-576g laptop. I used this laptop as a PC and it is always connected to AC power. Up until recently my battery even though it was weak worked and because I was always charging it was ...
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How can I connect a case power switch to these DeskMini X300M STX pins?
I am looking at an Asrock DeskMini X300M STX motherboard (images below; this form factor is often called Mini-STX). This board, produced to fit a very bespoke case, has a set of pins for the power ...
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How do I Identify which failing hardware is causing hard crashes/reboots?
Recently, my computer started having hard crashes/ reboots.
When on a medium load, the computer appears to randomly reboot, shutting down to BIOS and just rebooting itself some seconds after.
The ...
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Damage marks on PC power cable/socket
The problem:
Yesterday i started to experience stable shut downs when playing Far Cry 5, which lead me to checking everything power related and thus discovering some sort of damage marks on both the ...
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