All Questions
Tagged with power-supply power
468
questions
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Supermicro C7Q67 or PSU alarm sounds when boot attempted with AMD Firepro S9000 GPU
I have a Supermicro C7Q67 motherboard that I had working as a Windows Server 2016 RDS machine. It was a simple set up and I was only planning on using 1-2 VM clients with RDS, but I had been using it ...
- 215
1
vote
0
answers
2k
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Power consumption in Windows 10 and Linux
How does Windows 10 compute the percentages of power used by various applications and hardware devices without any external power measurement device?
It's a fascinating problem to be able to ...
- 11
1
vote
2
answers
1k
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Can I use two different PSU cables from the same brand?
I have an old rig and a new rig, the "old" one is using a previous generation AX850 (the ones with the gold writing on the side, not the red), and a new RM 850.
I want to add a second graphics card ...
- 6,440
1
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0
answers
85
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Desktop PC doesn't switch on, power cuts
Today I have quite a big problem with my HP Pavillon Desktop pre-built computer.
So, what happens?
Well, when I press the power button, nothing happens. There's a led light on the back of the ...
- 182
0
votes
2
answers
5k
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Can I use a USB-Y cable connected to both ports of power bank?
I'm working on a project that requires a 5V, ~4A power supply.
This project needs to be portable, so I am looking at power banks.
However, I cannot find a portable power bank that will output that ...
- 626
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votes
2
answers
4k
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How do I plug this SATA power cable into a PSU with only 4 pins?
I got a new PSU and I can't run my hard drives off of the power supply because this is the cable.
And this is my power supply:
My old power supply allowed me to plug the cable for my hard drives in, ...
- 6,440
2
votes
0
answers
3k
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How can I repair a power supply for a Apple's Power Mac G4?
This is an attempt to gather a reference page for anyone trying to replace a failing PSU from a Power Mac G4 with an equivalent ATX in the future.
There are still a couple of pages -luckily- ...
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votes
3
answers
2k
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Laptop graphic card not working when battery is taken out but connected to power supply
I am trying to keep my battery life as much as possible so I tried taking out my laptop battery when i am gaming on it at home. However, when the battery is out of the laptop and plugged in to the ...
- 626
1
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0
answers
70
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Effect of power outage on power supply connected to surge arrester and voltage regulator
I have a computer that connected to an automatic voltage regulator and an a surge arrester. The power supply unit is set to automatic power recovery so that when there's an outage, it will start the ...
- 119
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29
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Desktop does not power on, replacing power supply and mother board did not change anything
We fried a desktop PC when trying to connect the power supply to a PCI device using a makeshift cable (please don't judge me) because the the power supply didn't have enough pins. Apperently we did ...
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2
answers
2k
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USB hub no longer functions after plugging in power adapter
I didn't know where else to ask this. What could have gone wrong with my USB hub for it to stop data and power transmission after I plugged in the auxiliary power adapter that it came with?
I have ...
1
vote
2
answers
4k
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Is My PSU compatible with this UPS
I have this PSU and this UPS, however due to the PSU being/having an active PFC (power factor correction) it is incompatible with my UPS (at least according to APC tech support, for reference see my ...
CommunityBot
- 1
1
vote
0
answers
122
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How to make my ubuntu laptop not to use the built-in battery?
I have a Lenovo y50 which I use all day and night. It is plugged in most of the time.
I was wondering if it is possible to make my laptop not to use the battery sometimes and get it out of the ...
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votes
1
answer
410
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Power consumption of OpenCL code running on a NVIDIA GPU
I am trying to run OpenCL code for a MJPEG decoder on a Nvidia GPU (Tesla K20c). I asked questions on other stack exchange websites about implementing the decoder on the GPU and I am now trying to ...
- 189
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0
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2k
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How to avoid having to Power Reset my laptop each time I use it
Each time I use it, I cannot power on my Acer E5 unless I do a "Power Reset" first. If I remove the battery and A/C adapter then hold down the power button for 30 seconds, my laptop will turn on. ...
- 11
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1
answer
973
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PSU or motherboard dead?
Today I installed the CM Hyper 212 EVO CPU cooler in my computer. It went rather smoothly but afterwards my PC wouldn't start up anything. Not even beeps.
I have tried resetting BIOS, re-seating all ...
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votes
1
answer
117
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PC Won't Sustain Power
I've been using this system almost every day for the past 7 months. It has worked completely fine with no indication of error at all, but now it will not power on. Whether I use the casr button, the ...
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3
answers
7k
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(Why) are IEC C5/C6 connectors a necessity? Why not use C13/C14?
That's a question I was asking myself the first time I saw such a weird C5 plug. That was a while ago, but I came across it again and haven't found an answer yet.
The only thing I could find out is ...
- 1,818
1
vote
2
answers
11k
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Okay to supply more amps? Use a 14V 4A 56W power adapter on a 14V 3.21A (45W) monitor?
I have a Samsung 4K monitor, LU28E510DS/ZA (Costco exclusive variant), with a back panel describing DC14V 3.21A.
I cannot find an exact replacement power supply. I found one that is close at 14V 3A ...
- 2,741
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votes
1
answer
1k
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Computer power cycles every few seconds endlessly
Issue:
The system runs great under full load for as long as I need it to but when I leave it idle, eventually (usually immediately on screen off/system idle (not sleep/suspend just display off)) it ...
- 3,421
1
vote
1
answer
3k
views
Using a separate power supply for an external drive array
I'd like to add an external 4 or 5 bay drive enclosure (example) to expand the storage capacity of my NAS, an HP Microserver Gen8. I'll use a 4-port SATA PCIE expansion card in the NAS to provide the ...
- 10.2k
0
votes
1
answer
723
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Monitor AC power adaptors keep dying
After moving to a new apartment and using my computer for a few days, I heard a small explosion in the AC adaptor that powers my monitor, which of course got turned off. When I touched the adaptor, I ...
- 4,463
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2
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5k
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DC-input motherboard How does HDD get power? --- ASRock H81TM-ITX
This may be quite a simple question, but I do not know much of anything when it comes to building motherboards, voltages, wattages, and power.
I am looking at this board - ASRock H81TM-ITX (http://...
- 1
1
vote
1
answer
843
views
Can I power two GPUs (2x 8pin, 1x 8pin) with two PSU cables?
I want to add one more GPU to my system. This GPU requires an 8-pin PCIE power connection but I'm all out. I am currently powering a GPU with two 8-pin cables each of which terminates in a 6-pin plug. ...
- 111
0
votes
1
answer
80
views
Power suddenly not making it past the switch
(editted)
This HP Compaq 6000 Pro at my office in Japan has started not powering on properly as of last week. I can hear a clunk, clunk noise sometimes that repeats. I'm thinking now it might be power ...
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votes
0
answers
50
views
New system build powers on, immediately power off
I have a home server I'm building that is immediately powering off after I turn it on. The motherboard is an Intel S2600CP4, I have installed two Xeon processors and 64 GB of RAM in 4 16GB DIMMs. The ...
- 1,433
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votes
2
answers
528
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Computer won't turn on with a new 350W PSU, though it does without a hitch with an old 350W one
I just bought a new Power Man 350W switching power supply for my old computer. I bought this PSU because it's not as noisy as the old one (actually it's not really nosy at all compared to the old one--...
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votes
0
answers
75
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My PC isn't turning on at all, only GPU LED is lit
I've had this custom build for 6 months and only today has this happened. I shut off the computer to go out and upon returning the computer will not power on at all when pressing the button.
The ...
- 507
1
vote
0
answers
240
views
Is it normal to get power supply surge when lightning cuts the electricity?
So I'm a bit worried because my previous MoBo (a Gigabyte) died and I just bought a new MoBo. This new MoBo is an Asus. Last monday (now we are friday) I've let my computer opened to be able to use it ...
- 212
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2
answers
651
views
I have 3 USB-C devices, a computer, a tablet and a phone. They all have different chargers but the same port. What happens if I plug in the wrong one? [duplicate]
Each of my USB-C enabled devices charge via the plug.
Each came with a USB-C chargerbut my phone does not need much power
so the power adapter is small.
My laptop needs a lot of power and its ...
- 31.3k
0
votes
0
answers
950
views
Power Supply / Motherboard fake death after power outage?
Every time I lose power - or just disconnect power from my PC for some time - it will be dead. The USB ports / audio ports will get power (I can hear my speakers pop when I turn the PSU on) but when I ...
- 318
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0
answers
418
views
Installed graphics card, which color wires connect
I just installed this graphics card, I am unsure of whether to connect the graphics card 3 black and 2 yellow pin to my white plastic power supply pin which has 4 black 2 yellow and 2 red. I am ...
- 1,425
0
votes
1
answer
86
views
Laptop powercord Voltage/Amp
I have a UK standard Thinkpad t440s; that is, it has a power cable with the UK 3 prong power plug. Since I am currently living in Japan the power plug is not compatible and using an adapter would be ...
- 71.4k
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votes
1
answer
2k
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USB Power consumption in standby v. active
I am trying to work out a power budget for a battery powered device i am making.
I have a USB hub with 4 ports. Each port has a device that needs communications (that is, none of them are for ...
- 12.9k
0
votes
1
answer
679
views
How can I make a PSU power a lightbulb? [closed]
I'm making a steampunk PC chassis and I'd like to have the PC be able to light up lights like these Edison Vintage Bulbs:
Is there a way to hook lights or anything else like that to a PSU or the LED ...
- 2,498
0
votes
1
answer
1k
views
Best placement for Power Supply Unit in a full ATX case? [duplicate]
I've read a few dozen tech articles about Power Supply Units and which may be best for inside a PC case, whether if it's sucking fresh air in, or blowing hot air out to keep it cool. But thing is that ...
- 14.6k
-2
votes
1
answer
827
views
New desktop build giving electric shock on touching it
I got a new desktop system. It's giving electric shock if I touch the system cabinet case. On checking with electric tester, it's led was glowing too.
I had plugged it into a two pin plug ( without ...
- 1
10
votes
0
answers
5k
views
USB hubs that actually implements Hub Port Power Control? [closed]
No USB hub I have tried actually seems to support "Hub Port Power Control" properly that is required for USB 2.0 compliance.
The USB 2.0 standard states that :
Self-powered hubs may have power ...
- 861
1
vote
2
answers
2k
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Any easy way to combine (any) laptop charger with USB charger
I have a crummy laptop with only one USB 3.0 port and not enough power on that port to charge anything any fast. There are a lot of cheap USB 3.0 hubs on the market that support external power.
What ...
- 71.4k
0
votes
2
answers
55
views
With the following information, can one identify which piece of hardware might be at fault for an unresponsive PC?
So here's the background: I left my computer alone for a while, then came back to it. While I left it alone, it had gone to sleep. When I attempted to 'wake' it, turn it back on, my battery backup ...
- 348
0
votes
3
answers
1k
views
500W PSU made a loud bang while computer was off after being touched by screwdriver
I was testing a PSU a friend loaned to me when troubleshooting a build. I put it in my PC, used it perfectly well, then shut it off. I was doing this to determine if a problem I was having was with ...
- 471
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votes
1
answer
2k
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Beeping laptop charger cause?
I have a dell power adapter for my dell laptop (although it's not the original, it was ordered online, it has dell engraved on the charger). Anyway, it stopped charging the laptop, no green light, and ...
- 30k
2
votes
1
answer
42
views
Weird monitor behavior
I had a power outage in my neighbourhood last night. My PC is working normally but my monitor (LG) isn't. This isn't the first time this had happened. Before, when power outages happened, my monitor ...
- 826
3
votes
3
answers
44k
views
Can a power bank work as a laptop battery alternative?
So here's the thing. My laptops battery is almost dead and I'm planning to buy a new one. The problem is that where I live, the power shortage is a very normal issue.
I have a 15 inch basic laptop. ...
CommunityBot
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votes
1
answer
2k
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Are these ferrite beads or fuses? Laptop MB, power section
This is a motherboard from ASUS G75VW laptop. What are these 3 parts? When I put the battery in the laptop, after several minutes it turns off and these parts are burnt. I had a second MB and replaced ...
- 25.4k
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votes
0
answers
3k
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Battery Issue Dell Inspiron 15 Plugged in , Not Charging
I have Dell Laptop Inspiron 15 3000 Series which i bought it couple days ago, by default it has windows 8.1 i figured out there's a delay in charging when i plug in the charger.
I have a problems ...
- 101
0
votes
2
answers
2k
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Motherboard won't power up after neighborhood power outage
I have a PC with a Silverstone KL-02 case, a Biostar TZ77XE3 motherboard and a PC Power&Cooling Silencer 470 PSU.
For a long while I've had trouble powering this machine on - I would have to try ...
CommunityBot
- 1
2
votes
2
answers
104
views
Can I take this computer to US?
I am moving to US. Electricity network in my home country is 220v. I want to take this pc with me but not sure if it fits the electricity in US. Would appreciate your help.
Power supply
Active Power ...
- 55
1
vote
1
answer
113
views
UPS Sizing with large PSUs
I have a couple servers in my garage running ESXi. Each server has a 1000W gold rated PSU which I bought second hand from a miner. They work great and were pretty cheap. These are not super powerful ...
- 5,264
1
vote
1
answer
3k
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Can I use Different charger: Similar Voltage, lower Amps? [duplicate]
My computer uses at 19.5V 9.23A charger.
I would like to use a 19V 4.74A charger on the same laptop.
The polarities and connectors are the same.
This article is the most comprehensive explanation I'...
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