All Questions
Tagged with power-supply power
468
questions
0
votes
0
answers
703
views
Interpreting and diagnosing cause of server board "power good dropout error" -- no POST
Motherboard: Intel S5520UR (manual). (Server chassis: SR2625URBRPR, but mostly irrelevant to this issue.)
I was being stupid earlier when trying to solve a problem with the backplane of the server ...
- 438
0
votes
1
answer
1k
views
Dell Optiplex 790 - Won't power on
I have two Optiplex 790 SFF systems, both out of warranty.
One system displays the yellow flashing power LED and does not power on when the button is pressed, which I know is due to a PSU failure and ...
- 461
2
votes
1
answer
682
views
Motherboard won't power down completely, until display port is unplugged
A couple of days ago I bought two new monitors (iiyama g-master GB2730HSU-B1), and by doing so I also switched to using display port instead of HDMI (EVGA GTX 970 graphics card).
Now a weird issue ...
- 624
0
votes
1
answer
31
views
How do I load test large UPSs?
I'm currently the only hardware repair person at my work and I've been left with a pile of UPSs that need to be fixed and tested. As it is I've been load testing the smaller (250-500 watt) units using ...
- 3,188
12
votes
4
answers
79k
views
Using multiple power supplies in one PC
I ordered a new computer and - as always - I think about upgrading it before it arrives.
I thought about adding another graphics card, which would probably push the current PSU beyond its limits. ...
- 1
1
vote
2
answers
12k
views
When laptop battery on "High Performance" it stops charging the battery
I'm using an ACER Aspire 5750G and my laptop specs are:
Proccessor: Intel Core i7-2630QM
Display: 15,6 LED LCD
Nvidia GeForce GT 540M - 1GB - CUDA
Memory: 8GB
HDD: 750GB
SSD: 250GB
Acer Nptity 802....
0
votes
1
answer
37
views
Special Accommodations for External Power Supply [closed]
I am currently working on building a PC and need a power supply. My motherboard is a microATX with 24 pin and 8-pin power supply connections. I am using a microATX case that I had before (not bought ...
- 71.4k
0
votes
1
answer
521
views
External batteries and maximum output (Multiple devices)
I'm about to buy an external battery with this output specs:
AC 230V/ 50Hz.
65Watt (max 85 Watt).
It would be similar to this one; picture below for reference:
I’m used to see amperage output, ...
- 27.6k
0
votes
1
answer
187
views
Do electrical spark sounds from the power plug hint for higher risk of damage?
I was moving my PC while it was turned on (at the Windows 10's Login screen) when I heard some electrical spark sounds from the back and the PC fell out. Looking at the back I noticed that I didn't ...
- 27.6k
-2
votes
2
answers
1k
views
How to move iMac without powering it down?
Sometimes, I need to move my iMac to another room without shutting it down. To do that, I need to unplug it from the electrical outlet and then I need to plug it to the outlet in the next room.
I've ...
- 13.5k
0
votes
1
answer
2k
views
Monitoring motherboard voltages
I have been testing different hardware monitoring software, both Linux and Windows, and noticed there is typically only CPU and RAM voltages offered if any at all. Id like to find tools that will give ...
- 2,297
0
votes
1
answer
119
views
Will this cause damage to the powered USB hub plus any device that happens to be plugged into the hub?
I have a AC/DC Samlex 1235M converter delivering 12 plus volts to a Rigrunner power strip. I plan to plug a powered USB Hub rated 5V, 3amp into the power strip (which will have a 3amp fuse). Here ...
- 31.6k
2
votes
2
answers
11k
views
Power cord ratings (Volts, Amps) for monitor?
I recently bought the HP w2228h monitor on the cheap locally. It didn't come with a power cord and I was amazed at the price of the HP 8121-0739 power cord that originally comes with it.
I am not ...
- 6,440
0
votes
1
answer
365
views
Safe? ..Using a Y USB cable to power a dash cam from 2 power sources [closed]
I would like to power a dashcam from 2 power sources (the car cig lighter & battery pack) using a Y-USB cable (1 female - 2 male). I would connect my dash cam to the female end. Then plug one of ...
- 11.8k
0
votes
2
answers
90
views
Is there a surge protection system to protect the grid from the equipment?
All surge protection hardware that I'm aware of exists to protect your equipment from electrical surges coming from the grid.
Is there one that protects the grid from the particular piece of ...
- 31.6k
1
vote
0
answers
94
views
Dell Server Power On after power outage
I have a Dell PowerEdge R900, No UPS direct power connected, I do have it connected via a power strip(Surge Protector). but issue happens either ways
Issue
Server was powered off
I had a one second ...
- 2,237
0
votes
1
answer
2k
views
Asus X551M no power at all
My issue is the same as the one here: Asus x551M shut down and won't come on, but this has not been resolved.
I have tried:
Removing the li-ion battery,
Removing the CMOS (which was completely ...
2
votes
1
answer
9k
views
Black screen when powering on PC. Fixed by removing power plug, plugging back
I have a weird problem with my desktop PC. Sometimes (not all the time), after I power up the PC, the display shows a black screen. Nothing shows up. The PC was powered on successfully as I can see ...
5
votes
1
answer
1k
views
What could be the name of this rare type of HP Pavilion power connectors?
It is a HP Pavilion G6 laptop, and I am trying to identify its uncommon power plug. Looking around on the net, I see only the more standard, center pin power plugs, but not this. I think, maybe most ...
- 9,703
1
vote
1
answer
82
views
My PC does not respond to power on switch immediately though USB ports seem to receive power [closed]
I have gotten a PC assembled for my home use.
Since a few months, I am experiencing a strange issue while powering the PC on.
When I switch on the wall button of the machine (in which the power ...
- 1
1
vote
1
answer
119
views
Getting electricuted when touching the laptop
My friend bought HP Pavilion 15-cc183cl, the seller immediately removed the ground pin, because the circuits in my country don't have ground, (the circuits aren't designed to have a ground pin), and ...
- 9,703
0
votes
0
answers
85
views
Windows 10 USB device disconnecting after a power failure
My USB mouse is always getting disconnected after a power failure. I tried unplugging the device and plugging it again, the laser lights for sometime and then it stops. For all USB root hubs i had ...
- 1,829
1
vote
0
answers
987
views
Motherboard not lighting up when PSU is switched on
I have an ASRock Fatal1ty Z370 Gaming K6 motherboard which is a quite recent board. While I was using my computer, everything shut down rapidly. At first, I thought it was a power blackout in the ...
- 121
0
votes
1
answer
916
views
How to switch on secondary PSU out of main chassis
I have a machine with:
Mobo: ASUS P5QL PRO
RAM: DDR2- 8GB
GRAPHICS: Gigabyte R7 360 series
HDD: 6 discrete units plugged in 6 SATA ports. (some are 1TB, some are 500GB, some are 320/250GB)
...
- 9,703
2
votes
1
answer
144
views
Fully Modular Power Supply Replacement
When it comes to replacing a fully modular power supply, does anyone know if its a good idea to unplug the cables that go into the supply and plug them back into the new one? Instead of having to ...
- 14.2k
0
votes
1
answer
184
views
What can one do with laptop which won't turn on?
My laptop (HP probook 4510s) won't turn on. I would like to know what steps one should do in such cases to diagnose the problem and to know which part of laptop to replace.
What I tried in my case (...
- 195
0
votes
1
answer
873
views
Monitor doesn't work for a while after removing power cord
If the light goes down or the cable cord is removed it can't power on again. I always have to unplug it for a whole night or day and plug it again, and then it works.
What I tried:
- Different power ...
- 1
0
votes
1
answer
98
views
Laptop Battery and Charger potentially broken?
This is about my roughly 4 years old Asus N551JK, in case it matters.
Whenever the laptop is under heavy load (android studio running, for instance) the battery is acting really weird.
It constantly ...
- 111
3
votes
2
answers
6k
views
Shutdown-on-LAN capability
There is a technology, called WOL.
Is the an opposite? Is it possible to shutdown a computer via LAN?
I would expect small embedded linux in a NIC which was capable to long-press power off button.
...
- 10.9k
-1
votes
1
answer
93
views
Who is powering Wake-On-LAN capable card?
Who is powering Wake-On-LAN capable card? Is this PSU? If it is then, where are these wires on PSU, where I can take powed in power off mode?
The focus is on details of power source. There is no ...
CommunityBot
- 1
8
votes
3
answers
231k
views
Is the 4-pin PSU connector required? (Trying to connect a PSU to a mini case.)
I am trying to build a computer, placing an ASUS P8H67-I DELUXE in a custom retro Commodore 64 case.
The case is an extra small form factor which can accommodate the Mini ITX board, but it requires ...
CommunityBot
- 1
1
vote
1
answer
518
views
Seagate expansion 1TB USB 3.0 on USB 2.0
I'd like to buy this drive (Seagate 1TB Expansion USB 3.0), but I have USB 2.0 only. Do I need an external power supply? Will 500mA of USB 2.0 be sufficient?
- 28.4k
0
votes
2
answers
349
views
Voltage Stabilizer and USB Hub
I need to use a voltage stabilizer to secure my USB Hub (Anker PowerPort 6), but the stabilizer is slightly underpowered. It is rated at 1.3A, 300W (230V).
My Anker has input requirements of 1.4A (...
- 1
-2
votes
1
answer
301
views
GTX 1050 and GTX 1050 Ti-based cards power socket?
Some graphics card have a power socket in addition to drawing power from the PCIe bus. Is this the case for nVIDIA GTX 1050 and GTX 1050 Ti-based cards? That is, do
No vendors' 1050 and 1050 Ti cards ...
- 9,852
3
votes
2
answers
9k
views
PSU power distribution problems for mining rig
I've built a GPU mining rig for mining altcoin cryptocurrencies (ethereum et al) and I'm having problems with what I believe is either my PSUs or my power distribution.
The Hardware:
2 x Raidmax ...
- 1,444
0
votes
3
answers
1k
views
What is killing my power adapters? [closed]
Hardware
I have two Acer S230HL's and an ASUS PG278Q (hooked up to a custom PC build).
Background
3 months ago on an exceptionally hot day, the power to the house flickered off and immediately back ...
- 31.6k
5
votes
1
answer
33k
views
Is it safe to use one 6 + 2 PCIe power cable to GPU
I will be installing a R9 290x that requires both a 6 pin PCIe power connector and a 6 + 2 PCIe power connector.
Is it ok to use one PCIe 6 + 2 power cable from the PSU that splits into two 6 + 2 ...
- 957
0
votes
1
answer
121
views
Thinkpad's battery charges too slowly
This issue started happening not so long ago. It takes too long to charge my T420 battery now. ACPI even says 90 hours, or 50 hours remaining to fully charge etc, then the AC disconnects and ...
- 103
2
votes
2
answers
3k
views
Can you use USB-C in parallel to provide more power?
I am currently looking at eGPUs for my laptop (HP Spectre x360 15"). Because the standard power brick is rated for 150W, the USB-C standard would only provide 2/3 of the required power, so even an ...
- 12.9k
1
vote
1
answer
137
views
Can i use a Lenovo power adapter with a groundless cord? Should I?
My Lenovo PSU has a C6 power cord inlet:
I tried plugging in a C7 power cord but it doesn't fit:
Should I assume that it was done on purpose because using a groundless power cord would be unsafe and/...
- 5,868
0
votes
1
answer
65
views
What is the A/L/M switch for on a Top Power TOP-300XP power supply?
I can't seem to find any information on what the switch is used for:
A is setting 1
L is setting 2
M is setting 3
- 13
0
votes
1
answer
78
views
Easily reproduced total loss of power in a handful of specific situations - ideas?
I've recently assembled a new desktop machine from mostly new parts, plus a handful of still-working parts from my old build. For the most part it's running great, HOWEVER - I have an odd power-...
6
votes
4
answers
4k
views
Does powerful Core i7 PC with a 800W PSU consume more power than a weaker one on a same task?
If I I mostly (not always of course, otherwise it'd be illogical to buy such) use a PC for simple internet surfing, coding and office tasks, will my electricity expenses be higher if I buy a powerful ...
- 957
0
votes
1
answer
849
views
Battery ran out of charge suddenly and won't charge
I've dell inspiron 5547 laptop and it was working fine till last night i used it. I didn't shut it down as I usually do and just closed the lid to let it go to hibernate or sleep mode, battery was ...
- 93.8k
1
vote
2
answers
2k
views
Is there a limit on how much more ampers can I supply for a laptop?
My laptop uses a charger outputting 6.4A with 19V (120W). This charger was a replacement for the old one, the specs were almost completely matching (19.5V and 6.15A on the old charger), everything ...
- 2,646
1
vote
1
answer
532
views
How to calculate the number of watts for every addiotnal part to my pc?
Could you help me how to calculate the number of devices I could add to my computer safely to the limit of the power supply (290 watt)
I have Dell 9020 core i5 tower pc
and I want to add the ...
- 4,750
1
vote
3
answers
5k
views
Should my HP Pavilion dv6000 operate w/o battery pack while using electrical plug-in? Mine won't
While using my computer, it shut down, and I cannot get it to turn back on. I have tried removing the battery to see if the computer would work without it, but it did not. The light is on where the ...
CommunityBot
- 1
0
votes
2
answers
1k
views
Is my PSU compatible with my motherboard and processor?
I have an ASUS TUF z370 plus motherboard, with an i7 8700k CPU, and a Chieftec-iARENA GPB-500S PSU. I have trouble connecting power to the motherboard ATX 12V slot. The motherboard has an 8 pinhole ...
- 1,206
-1
votes
2
answers
1k
views
Can I charge my inspiron 15 7000 using a lower wattage charger without frying the charger?
I would like to be able to play games on my insprion 15 7000 while on road trips, but it's power hungry and the car's cigarette lighters are 120 watt, so the 130 watt charger won't work. I was ...
- 180
1
vote
2
answers
425
views
Motherboard only boots with one out of three PSUs - issue with Mobo or PSU?
The short summary: I have a new build that will only boot with one out of three (known to be good) power supplies. At this point it is starting consistently, but I'm trying to understand the ...
- 81