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 ...

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20 views

Computer wont turn on - flashing light indicator

I am having a strange problem with my computer, and need a diagnosis... The computer was just fine yesterday, but today when I try to turn it on, the light indicator flashes, the fans also get a short ...
0
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1answer
140 views

CPU, GPU fans spinning at full speed after shutdown

My computer has been running fine for 4 years, but yesterday it starts to exhibit odd behavior: After I shut down the computer, the CPU and GPU fans start spinning at full speed (everything else ...
4
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6answers
7k views

Laptop screen turns off on removing power cord

After a recent upgrade to Windows 8.1 Pro from W8, my laptop's (an ASUS X54H) screen turns off as soon as you remove the power cord. It turns back on with no issues when you plug the power back in. ...
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1answer
18 views

Machine turns off with different graphics card; who's the culprit?

A machine that I own does run quite stable in its current configuration. It has been running with a GeForce GTX 295 for a couple of years. That card used quite a lot of power, produced lots of heat ...
1
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1answer
20 views

HP Elitebook 8530p's CPU Increases to 100% when Plugged In

I apologize if this post is too long or doesn't describe the issue properly. I have absolutely no idea why it is doing this, apparently it is a problem with HP computers or a particular strand of them ...
3
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1answer
91 views

What is the name of the cable inside PC cases?

Due to limited linguistic and technical knowledge, I do not know (and can not find) the name for the 4 pin (or perhaps 3?) plugs that are used inside PC cases to deliver electricity. My questions: ...
8
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6answers
14k views

If my power supply is 700w, do I need a 700w UPS?

if my power supply is 700w, do I need a 700w UPS? I am running dual 20" dell LCD's, a i7 quad core system with a radion 4870 1gb video card, 2 hard drives.
0
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1answer
28 views

my power supply is 400w, do I need a 400w UPS? [duplicate]

my power supply is 400w, do I need a 400w UPS? my cpu is pentium g620 2.60Ghz,2gb 1333mhz ddr3 ram,160hdd,nvidia gt210 1gb gpu,400w psu samsung 22" LED
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1answer
29 views

Moving to Sweden, bringing my PC with me. Shipping and Power query [on hold]

In a few weeks I'll be migrating to Sweden, I won't be taking much with me, but I've got a custom built PC I've spent over £1000 on that obviously I won't want to leave behind. Two questions: What ...
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3answers
118 views

Why is my Windows machine restarting with Kernel-Power issues?

I'm experiencing lots of computer restarts (occasionally at very bad times, e.g. during a support call with a client). Digging into the Event logs gives me lots of Critical Kernel-Power errors: ...
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0answers
122 views

Why is my PC hanging when I insert a DVD?

I have a computer with a 500GB hard drive, an 80GB hard drive, and a CD/DVD drive running on a 450W Power Supply. When I connect the power supply to all the devices at the same time and insert a ...
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0answers
38 views

My computer restarts automatically when there is power outage and the monitor is turned on, using UPS power

I have a Zebronics Power UPS which backs up the system power at the time of power outage. I have no issues with that. But yesterday night I kept a movie to download and slept turning off just my ...
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0answers
72 views

Computer crashes on startup of 3D games

My computer renders games similar to Minecraft just fine, but games with more intensive graphics like: Planetside 2 Tom Clancy's Ghost Recon Phantoms Skyrim it crashes the instant it needs to ...
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5answers
25k views

Computer doesn't turn on, motherboard or CPU?

So this morning my computer wouldn't turn on. Pressing the power button has no affect. When I turn off the switch at the back and push the power button after turning it back on it seems for about half ...
0
votes
1answer
21 views

How to determine if I am having power supply failure

I have this server Dell Precision 690. It has powered and turned itself off a few times. In some cases it seems to also be in a sleep mode where you have to turn it off and turn is back on. Is this a ...
0
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0answers
35 views

cpu's fan increases without reaching a settle point

I'm encouterning the followning phenomenon on the hardware side of a pc: When powering up the machine, the cpu's fan (cpu cooler's fan accuratelly) is starting to rotate, but it doesn't settle down to ...
0
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2answers
23 views

Computer dims immediately when remove power cord

I have an Asus Windows 8 computer. Very strange, whenever I remove the power cord, the screen dims immediately. And very dim. The battery lasts for five hours -- but not much use if the screen is so ...
0
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1answer
30 views

Hooking Microsoft Surface Pro 3 up to USB monitor

I have a Surface Pro 3 and I tried hooking up my Toshiba 14" USB monitor (PA3923U-2LC3) to it with the supplied USB cord. The Surface reported that the monitor was attempting to draw too much power. ...
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1answer
30 views

Which factors to consider when upgrading Processor only? [closed]

I currently own an Optiplex 755 which has an E6550 Intel® Core™2 Duo Processor E6550 (4M Cache, 2.33 GHz, 1333 MHz FSB. It has 8GB of DDR2 RAM, PC2-5300 (333Mhz) I'm looking for processor on the ...
0
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1answer
23 views

Does a modular power supply come with all the cables?

I'm looking to buy a modular psu, because a non modular one is a complete pain. I'm wondering if all the cables will come with the psu. This is the one I'm looking to buy. ...
3
votes
4answers
3k views

Alternative power source for graphics card

I recently purchased an XFX Radeon HD 6870 graphics card for my Dell Server Workstation, but when I brought it home and unpackaged it to put it into my computer, I noticed it required 2 6-pin ...
0
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2answers
40 views

What kind of power supply will I need for 780 sli?

I have a GTX 780 and I would love to get another one and use it for sli, I was wondering what's a good powersupply wattage that I should get. I'm currently using a Corsair CX 600 Watt Power supply, ...
2
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5answers
1k views

Motherboard HDDPWR1 connector

I need help identifying the name of a connector. I have a Gateway DX4870-UB318 computer, I opened the case and wanted to attach another hard drive, but to my surprise one existing SATA hard drive was ...
0
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0answers
23 views

How to make that computer turn on by external power on?

I have remotely controlled power supply, and I wish to implement cold reboot with it, for cases of unrecoverable hangs. Unfortunately, once power is off, computer is not turning on when power appears ...
0
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2answers
22 views

Radeon Graphics loud fan, unable to boot

I have an ASUS P6TD Deluxe with a Core i7 CPU (950 @ 3.07 GHZ), 6 GB Ram. I am running a PSU ANTEC 550 Watts. On it, I am running a quite new Radeon R9 290X. The system is booting of a Kingston SSD, ...
0
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1answer
2k views

EVGA Geforce GTX 760 ACX Installation issues

I recently purchased a new Geforce gtx 760 from EVGA with ACX cooling, and I'm quite confused with the power supply. The card came with 2 PCI connectors, however one was a 6-pin and the other was an ...
3
votes
6answers
297 views

Gaming blew fuse and causes funny smell: how to overcome?

I've been gaming for a while now. When playing certain games this PC goes into overdrive. The fan starts to sound like a jet engine it get so busy. Also I have smelt a smell which smells like glue and ...
0
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2answers
79 views

Spilled coffee on laptop

Here is the story: When I woke up, I started my PC and went in the bathroom... when i came back i noticed that my keyboard is spilled with coffee and my laptop is turned off, I quickly wiped the ...
1
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3answers
58 views

Converting a computer PSU to a bench power supply

)I have read a number of articles dealing with the conversion process and think I can manage to get there if I am careful and take it step by step. However my starting point is a box of PSUs that I ...
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1answer
39 views

why wont my custom built PC boot? [closed]

I turn it on and the lights turn on the fans are spinning but no picture turns up, and when it's on it'll sound like its powering down and then it'll fasten up again and it'll keep doing this. My ...
0
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4answers
48 views

power button.Wont turn pc on or off

I have a custom made desktop which is 5 1/2 years old. The computer was working perfectly until I moved. After I set up the PC again, I couldn't consistently turn it on and off. When I did get it on, ...
0
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1answer
14 views

Overseas parts power compatability

I'm ordering parts for a new computer and they're way cheaper on Amazon, but I'm in New Zealand which runs 240V as opposed to America's 110V (I think). Will the parts be fine if I just get the power ...
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0answers
33 views

Make certain programs run when connected to power supply (laptop)

I'm running Windows 7 64-bit on a Lenovo Laptop (X220i Tablet) I was wondering if it was possible (and if so, how) to have a list of certain programs that will run automatically if you are connected ...
0
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1answer
28 views

Laptop power supply unit compared to PC power supply unit

PC power supplies are relatively huge compared to those used with laptops. But why is this so when a laptop today can have an equal level of performance as a high end PC? Are they both switching ...
0
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1answer
2k views

Workaround for Dell “Power Supply Not Recognised” issue

So, I have a Dell Inspirion and the power supply port appears to be damaged. Basically when I plug it in I get a nice popup telling me that it couldn't detect that its a Dell power supply so it won't ...
1
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0answers
91 views

PicoPSU problems with BioStar A68N-5000

I build myself a low power NAS system and I'm trying to power it with a PicoPSU and an external brick power supply. When I turn on the power the case fan starts turning for a second and then stops ...
0
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4answers
133 views

Is it safe to power access point from cigarette lighter?

Access Point requires AC power adapter with 12V and 1A output. Can I use cigarette lighter adapter (usually intended to be used to charge laptops in a car) for this device? Cigarette lighter adapter ...
1
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0answers
14 views

What depth of discharge does 0% in a UPS correspond to?

When a UPS like an APC Smart-UPS shows 0% charge remaining, does it mean the deep-cycle batteries are completely discharged or that they're at 20%?
2
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2answers
2k views

DELL Inspiron N 5050 doesn't Power On until I Plug-in the Charger

I bought a Dell Inspiron N 5050 last week, and recently discovered a problem with my laptop. It doesn't Power On until and unless I Plug-in the charger. After I plug-in the charger, it boots up ...
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0answers
16 views

Nvidia Tesla C2075 PSU requirement [duplicate]

Can I install a Nvidia GPU Tesla™ C2075 to my PC that has 600W power supply unit? Thanks for any helpful answers!
0
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2answers
37 views

Computer is Shutting off Randomly Throughout the Day - Need to Tilt Case to Restart

Throughout the day, my Windows 7 desktop system is shutting down without warning every 2-6 hours or so. The frequency seems to be getting greater, but I'm not yet completely sure of that fact. This is ...
6
votes
1answer
182 views

Debugging a “Somewhat” Faulty PC Component

TL;DR: I have a component that fails very infrequently, preventing my computer from POSTing (I am suspicious that this may be a motherboard issue). Since I cannot reliably reproduce this error, what ...
1
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2answers
40 views

PSU Noise when turned off

When my PC is turned off and I bring my head very close to the PSU, I hear a high frequency noise. Is that normal? I can't hear when I am like 2 metres away from it. And it's only there when turned ...
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votes
1answer
49 views

Connect Radeon R9 290X DirectCU 2 to Corsair HX850

I have received a new graphics card after my old one died after a couple of weeks The card is a Radeon R9 290X DirectCU 2 and i wish to install it I got a single wire with it; one side has 8 pins and ...
1
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1answer
41 views

Something fried in PSU, but PC still works?

I just finished cleaning the dust from my desktop PC with compressed air. When I put everything back together and plugged it to power, there was a brief flash of light and another after I booted it. ...
1
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1answer
4k views

What does I.T.E stand for when it comes to power supplys?

I wish I could give you more but I have a AC adaptor which I am trying to find ( as it's ... erm kaput ) and it has only a I.T.E power supply number. I can't seem to find where this acronym comes ...
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4answers
3k 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 ...
0
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1answer
1k views

My Asus Laptop Power Supply is Broken — or is it?

System is an Asus N53S laptop. For several months I've been having the standard problem with a flaky DC plug that doesn't work unless it's positioned just so. Just to make life more fun, the battery ...
2
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2answers
2k views

Dell inspiron n5010 has failed to recognize AC adapter

Recently my dell inspiron n5010 has failed to recognize my 90W adapter (despite powering it just fine). Full error message: "The AC power adapter wattage and type cannot be determined. the ...
0
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0answers
15 views

Can I diagnostic/check my PSU?

I'm soon about to upgrade certain parts of my computer, CPU, Motherboard, Memory.. those parts are from 2009, and have served me well through countless hours of programming and gaming. my PSU is from ...