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.
2,830
questions
0
votes
0
answers
35
views
Laptop won't power on, battery indicator light on until attempting to power on laptop [closed]
Laptop model: Asus ROG GL553VD
My laptop very suddenly won't power on. The laptop's PSU is confirmed to be working. The indicator lights are behaving unusually:
The battery's indicator lights up when ...
0
votes
0
answers
40
views
Why is my CPU always at 150+ watts power usage
I just bought a new motherboard for my Alienware x17 r1 and everything seems to be working just fine but then for some reason I noticed that my CPU was being throttled. Reset the system and everything ...
0
votes
1
answer
52
views
Laptop is not charging when plugged and very laggy
I accidentally connected a Lenovo charger to my Dell laptop. After I realized this, I disconnected and connected to its Dell charger but now it doesn't charge. The laptop still works when plugged in ...
- 118
1
vote
1
answer
152
views
How to disable GPU or PCIe bus power?
I have PC with dedicated (power hungry) GPU. I don't need it's power for most time and need to save power (sometimes I use this PC on UPS and GPU takes about 35W at idle) so I must physically remove ...
- 36
0
votes
0
answers
22
views
Server with Supermicro X9SCL-F motherboard not powering on?
I recently bought the following parts and assembled them together:
Motherboard: Supermicro X9SCL-F
RAM: 4x 4G DDR3 PC3-12800E 1600MHz ECC-Unbuffered UDIMM GOODRAM
W-MEM1600E34GSM
CPU: Intel Xeon E3-...
0
votes
1
answer
33
views
Are these PSU plugs compatible with such a mainboard?
I am unsure on how all the plugs fit together.
I already have this PSU:
be quiet! Pure Power 11 400W https://www.bequiet.com/admin/[email protected]&.jpg
There are two 4-...
- 115
0
votes
1
answer
109
views
GPU has two 8-pin PCIe sockets for power and my PSU has only one PCIe 6+2 connector. Is that one cable sufficient?
I'm building a PC and I've got an issue with the GPU (Sapphire Pulse 7800 XT 16gb graphics card) and the Deepcool DQ850-M-V3L 850 W modular power supply I'm using.
The main problem is that the GPU has ...
0
votes
0
answers
15
views
Power on after power failure iMac 2019 with Ubuntu
Hi i just installed ubuntu on an iMac 19.1 and discovered that after a power failure it does not come back as it did when it had macos.
Looking around for solutions i saw several posts about using ...
0
votes
0
answers
40
views
Is it safe to use a monitor power adapter with a higher amperage? [duplicate]
My MSI monitor power adapter gets hot when in use, and it's not even summer yet.
I'm worried about this 20V 2.25A power adapter; it looks tiny and cheap. I really want to change it with a used one I ...
0
votes
0
answers
56
views
20V from Dell Precision 3581 USB C/Thunderbolt 4 Port with Power Delivery
USB-PD provides up to 100W of power through the USB-C Port, so I wanted to use 20V power from my Laptop to power my device.
According to the data on the Dell homepage regarding the ports, they are ...
- 1
0
votes
0
answers
62
views
After unplugging my PC from the outlet, sometimes it won't boot for a long time
Before I go to sleep, I unplug my PC from the outlet, due to concerns about power spikes or something of the sort frying my computer. However, sometimes, when I wake up and plug it back into the ...
- 148
0
votes
0
answers
64
views
Cable with multiple identical connectors in a PSU
Most PSUs I've seen have multiple copies of a connector on each branch (i.e, a Molex branch, a 4-pin PCIe branch, etc). I've taken to calling one of those cables a 'branch' or a 'strip'. Is there a ...
- 81
0
votes
1
answer
97
views
Laptop power button not working but battery discharge pinhole button is starting the computer, what might be the issue here?
I have an Acer Aspire A515-51G, the issue is suddenly the power button has stopped working, the battery is charging, but the pinhole that they have given; pressing it, actually starts the computer; ...
- 129
0
votes
1
answer
49
views
Is 300w too low power for these specs?
Is 300w too low power for these specs?
Specs:
Nvidia GTX 750TI Thunderbolt OC (100W)
Intel Core i5 2400
8GB RAM DDR3 bus 1333
SSD 120GB
Xigmatek PSU 300W
I think this PSU is too low power for this ...
0
votes
0
answers
35
views
Can I wire an 8pin double case fan into 2 x 4pin fan headers, or USB?
I have 2 x Delta 92x38mm EFB0912HHE Triple Blade High Speed Case Fan - Sleeved, which both have 4 wires which are spliced into an 8-pin connector, but only using 6 of the pins (2 are sharing 2 wires ...
- 123
0
votes
0
answers
30
views
Battery life of a MSI
I have an MSI Creator 15 A10UET-222NL that I have had for about 3 years. For some time now, I have been experiencing the problem that the battery life of my laptop is only about 1.5 hours without the ...
0
votes
1
answer
41
views
Dell "Power supply not recognised" GRUB solution not working
I have the same problem as this guy
Workaround for Dell "Power supply not recognised" issue
But the solution to add processor.ignore_ppc=1 did nothing. What steps would you suggest me to ...
0
votes
0
answers
184
views
Please someone help me with WHEA_UNCORRECTABLE_ERROR
Randomly, my PC initiated abrupt shutdowns exclusively during gaming sessions, accompanied by a bluescreen displaying the WHEA_UNCORRECTABLE_ERROR, followed by an automatic restart. Despite initially ...
- 21
0
votes
1
answer
122
views
Will this configuration supply the new gpu (Nvidia RTX 4000 ada) with too much power and damage it?
I just purchased an Nvidia RTX 4000 and it came with a 16(12+4) pin to 8 pin pcie adapter. Unfortunately it is only 4 inches long. The way my tower is configured it will not reach anything but the ...
- 3
0
votes
1
answer
141
views
Dropped HDD seems to be working fine with Windows, makes clicking noise when connected to Raspberry Pi 5
I dropped my External HDD (WD My Passport 5TB) while unplugging it from my Windows PCs USB port. Drop height was about 1m/3ft and it fell on the floor immediately after USB was disconnected. I'm ...
- 11
-2
votes
1
answer
121
views
Is there enough evidence that this USB-C power bank works with my laptop as per the specification and not harming my laptop? [closed]
I recently purchased a HP ProBook 440 14 inch G9 Notebook PC. According to the specifications, user manual, and user guide that came with the unit, as well as the USB-C power connector port symbol on ...
- 1
2
votes
1
answer
167
views
Confused about connecting PSU to MoBo
I have a Corsair RM650 and an AsRock A520M-ITX/A, but I'm a little confused as to which connector goes where.
I have recently been told that I need to connect both the AXT and the ATX12V connectors ...
- 153
0
votes
1
answer
55
views
PC will not post after shut down/sleep. PC will post again if psu is switched off for a while [closed]
Specs:
Operating System: Windows 10 Home 64-bit (10.0, Build 19045)
(19041.vb_release.191206-1406)
System Model: X570 AORUS ELITE
BIOS: F37d (type: UEFI)
Processor: AMD Ryzen 5 5600X 6-Core Processor
...
- 21
0
votes
1
answer
109
views
PC only starts up after about 5 reboots
I built a computer 3 months ago, and there were no problems with it until it got cool at home (or at least I think the problem is the low temperature of about 17-19 degrees celsius).
What's going on: ...
-2
votes
2
answers
237
views
UPS power(w) vs PSU power?
How much power(w) UPS must be for PSU( input 220V/10A)?
If UPS rated power is smaller then PC drain power before power loss, will the UPS shut down or what will happen?
- 95
1
vote
1
answer
210
views
USB not showing in lsusb, and USB keyboard not working in grub; but keyboard works in BIOS
I have a Dell laptop (Vostro Notebook 5590) with ArchLinux installed on it. I didn't use it for around 20 days (I powered it on a few times just to update it via sudo pacman -Syu, but never connected ...
- 189
0
votes
0
answers
291
views
The driver \Driver\WUDFRd failed to load for the device ROOT\DISPLAY\0000
Getting Warning Event ID 219 as listed in the title. Following a similar question's advice, I set my Nvidia card (RTX 3090) to Performance mode in the Nvidia Control Panel.
This is happening when ...
0
votes
1
answer
141
views
4G WiFi dongle only works with certain power sources
I have a USB 4G dongle that broadcasts a WiFi hotspot.
When plugged into a laptop, or a wall socket USB charger, it works and broadcasts a network.
When plugged into a car USB or cigarette lighter-USB ...
0
votes
0
answers
35
views
PC doesnt do anything except spin fans on startup
I have this PC that I use as a server:
Atermiter x99 chinese mobo
Xeon e5 2667 v4 cpu
4x8gb ram (non ecc)
Seasonic 430w psu
Chinese nvme ssd, kingston ssd, 1tb hdd
Hd 4670 gpu
When I press the power ...
- 11
9
votes
2
answers
2k
views
Is it safe to replace a 11.25V laptop battery with 11.1V or 10.8V?
I need a replacement battery for an older laptop that originally came with an 11.25V Li-ion battery (presumably 3 cells at 3.75V each).
The batteries I found online mostly have a nominal voltage of 11....
- 161
10
votes
1
answer
4k
views
Why does disabling active power management in BIOS double NVMe speed?
I bought a secondhand Dell OptiPlex 5060 Micro.
It seems to be limited in speed to PCIe 2 (2 GB/s) despite clearly being PCIe 3. This is documented to happen on the 3070 OptiPlex micro here: https://...
- 105
0
votes
1
answer
95
views
Remotely configure a computer to auto restart after power loss
I am currently located on the West Coast, while my target PC is situated on the East Coast at a retail store. To remotely access it, I'm using the Kaseya Agent.
However, I want to change the PC ...
0
votes
1
answer
146
views
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 ...
- 111
0
votes
0
answers
66
views
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 ...
- 107
0
votes
0
answers
176
views
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 ...
- 1
1
vote
0
answers
216
views
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 ...
- 11
0
votes
0
answers
79
views
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 ...
- 165
2
votes
3
answers
1k
views
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 ...
- 41
-3
votes
1
answer
114
views
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 ...
- 21.3k
0
votes
0
answers
42
views
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 ...
0
votes
0
answers
33
views
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 ...
0
votes
0
answers
102
views
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 ...
0
votes
1
answer
192
views
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 ...
1
vote
1
answer
198
views
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 ...
- 113
0
votes
1
answer
2k
views
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) ...
- 105
0
votes
1
answer
76
views
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 ...
- 433
0
votes
1
answer
292
views
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 ...
- 139
1
vote
0
answers
115
views
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 ...
- 11
0
votes
1
answer
170
views
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 ...
- 1
0
votes
0
answers
90
views
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 ...
- 1