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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164 views

PC Does not turn on

I have this weird issue, that I've had for a very long time. I've spent many hours trying to figure this out, but cannot figure it out. I purchased a Cisnet machine around 2008, which runs Windows ...
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1k views

New Power Supply doesn't work with a specific motherboard

I just bought a new power supply Corsair CX430 V2 in order to meet the needs of a new graphics card I hope to install. The motherboard is the micro-ATX form factor Asus P5KPL-AM/PS running a Intel C2D ...
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votes
1answer
162 views

Is my power supply dead?

I recently bought a new NZXT Phantom case and went ahead and moved all my components from the old case. It took a while to get some things in, and then to do a little bit of cable management (as much ...
3
votes
1answer
107 views

PC does not start with video card

It's really strange situation that i cant't figure out. Motherboard: ASRock G41M-GS3, Inter Core 2 DUO 2.13GHz, new PSU (Xilence 480W). Problems start when i try to put in it my Radeon HD3850 - PC ...
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1answer
404 views

Acer Monitor - No Response to Power Supply?

Model No is S231HL, for reference. As I was packing to leave my dorm, I unplugged it for the first time in a long time. It was working just a few minutes before this. I then realized I wasn't sure ...
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1answer
414 views

Weird alarm sounding on my computer when under load, but no overheating

I am having a rather odd hardware issue and to be honest, I am not quite sure what is causing it. I have been building my own systems for over 10 years and have all kinds of qualifications, but this ...
2
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1answer
74 views

Computer is OFF, and fans turn on and off twice a day

We have an OptiPlex 755 desktop acting quite strangely here. It's powered off, not in standby or hibernate, and from time to time it will just start spinning its fans for a few seconds, and then turn ...
2
votes
1answer
43 views

GPU and MOBO Bios

I have an older PC with Specs CPU e7400 (C2D) GPU 9600gt MOBO MSI p45 neo PSU 550W So my cousin gave me his old 8800GTX to replace my card. After connecting the two six pins and all the PC won't even ...
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171 views

Diagnosing power supply failures

I had my power supply experience a catastrophic failure (distinctive crack and electrical discharge noise, electrical burning smell) not long ago. It had been in use for over two years before failing ...
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1answer
127 views

How should I read the specifications on my PSU?

I want to get an AMD Radeon HD 6670 for my PC but I do not know if my PSU is good enough for it, because there is nothing written on it about the power. I have provided a photo of it below. How can ...
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1answer
399 views

ATX12V to EPS12V Adapter with DP55WG?

I bought a new Intel DP55WG Motherboard to upgrade an old computer. My old Motherboard and Power Supply used a 2x2 pin connector (ATX12V) and my new motherboard uses a 4x2 pin connector (EPS12V). My ...
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202 views

Second DIMM installed in motherboard stops video card from showing image

I have a Powerspec B800 that had a GeForce 8400GS PCIe 256MB card. I wanted to upgrade to a card with HDMI so I can send a feed to my TV. I purchased an EVGA GeForce 210 1024MB DDR3. I installed ...
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1answer
98 views

Computer only turns on after many hours off/unplugged

I'm having a problem with my PC. My computer specs are: Mobo: Gigabyte GA H81M S2PV Proc: Intel Pentium G3220 Ram: 2x8GB 1333MHz Kingston (Passed on Mem86+) PSU: Corsair CX430 III HDD: Seagate ...
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1answer
194 views

ATX Dell PSU to Offical ATX 2.0 spec pinout

Hey all I am using an old Dell Precision R5400 which has the 750w hot swap-able power supply. Problem being, since its a dell, the ATX pin layout is different than that of a normal, standard ATX 2.0 ...
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1answer
185 views

Computer time and bios resets everytime I unplug from wall

I am using an Asus P5GC-MX motherboard with a 700 watt power supply and I cannot figure out why this is happening. First I tried a new good brand battery with no luck. Next I flashed my BIOS and ...
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1answer
658 views

Power Supply Rating versus Graphics Card requirement

Windows 8.1 64 bit Lepa N500 Power supply GTX Geforce 650 ti boost My Lepa N500 Power supply is rated at 500 watts. I read some about PSU's and it says that the overall rating isn't really what ...
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1answer
118 views

HP 6910p battery charging very slowly

My laptop battery charge rate is very slow. It charges between 50% - 100% in almost 4, 5 hours. It's running normal on AC adapter without any problem but running very slow on battery mode. So can one ...
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1answer
71 views

PSU compability

I would like to ask a few questions about this PSU: RM Series™ RM1000 — 1000 Watt 80 PLUS® Gold Certified Fully Modular PSU Computer specifications: Case: Compucase 6C11BS-UT Motherboard: MB H77 ...
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1answer
266 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 ...
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1answer
693 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 ...
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1answer
2k views

Computer shuts down after a few minutes

So I spent all day yesterday trying to figure out what was wrong with my computer. The specs look something like this (before replacing the board): Z77 MSI M Power Samsung 840 Evo SSD 16gb Ram (2 ...
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1answer
213 views

my laptop is not charging when switched on

I have an satellite l735-11f laptop and i have been facing a problem where the laptop battery does not charge even when power cable is plugged in. I have noticed though that i am able to charge my ...
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1answer
82 views

PC crashes randomly after BIOS-Reset

my PC crashes randomly since 3 weeks - just turns off, no shutdown. no warnings, no errors BlueScreenView doesn't show anything (0 errors) no sound-warning Event-ID: 6008 System was shut down ...
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1answer
412 views

Hard drive not found after blue-screen

I met a blue-screen and then a problem saying "Hard drive not found" when I was re-booting my system. But when I plug the power cable of the hard drive and re-insert it, the system can be successfully ...
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1answer
127 views

Desktop Computer - One Second Shutdown

Hello superuser community. My computer just died on me yesterday, I've spent over five hours trying to figure out what broke but had no success. My computer's hardware CPU - Intel I5 2500K @ ...
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1answer
192 views

Computer doesn't boot after new psu installation

I've purchased a new PSU (Chieftec APS-550C) and installed it into my computer. After that my computer refuses to boot up: it spins up all the fans and drives, stays in this state for ~10 seconds ...
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1answer
736 views

CPU fan twitching phase leds blinking - computer won't boot

I have a big problem that I got today. Yesterday computer was "on" normally, I went to sleep without shutting it down. When I woke up, I heard a strange sound and was unable to bring it up from ...
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1answer
255 views

Gateway Power Supply - Cannot Desolder Broken Off Pins

I looked at a lot of forums and it appears that this is probably the best one to which I should submit my question. The long story short is that I have a Gateway power supply that has been broken off ...
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1answer
25 views

Power Supply may be going out

Could a screen go black after boot up or near boot-up due to the case Power Supply not putting out enough juice to run the computer when the OS comes on?
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1answer
107 views

Hard drive and NIC issues. Resolved from turning off power but not restart or shut down

I've had two hardware problems a few times over the last 2 months. First my NIC wasn't showing up in Windows XP even though it was registering ok in BIOS. I tried restarting and shutting down and a ...
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1answer
249 views

Computer becomes completely unresponsive, screen continues to show last thing on it. (Freezes?)

The problem has only occurred during gaming. The three games I've seen it happen on are osu, Minecraft, and The Sims 3. The games run completely fine, even at highest settings. Without warning, the ...
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1answer
965 views

Radeon HD 5670 power requirements

I'm looking at a HP PC HPE-510t, this HP PC only got a 300W power supply, how can it run HD 5670 video card, which requires minimum 400W power supply? The reason why I ask is because currently I have ...
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1answer
221 views

Troubleshooting desktop PC not booting if network and USB ports are connected

My current desktop machine is composed by: Intel q6600 Gigabyte EP43-DSL3 4GB DDR3 2HD S-ATA 750MB Seagate DVD-RW S-ATA Keyboard, webcam, headphones and the usual stuff connected to the USB ports. ...
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votes
1answer
46 views

No beeps and no display when I power on PC

The fans are working. There is no beep even in removing the RAM. I tried everything that I found on the internet, but nothing worked for me. Can anyone help me? I have an Onboard video card. ...
0
votes
1answer
33 views

Bricked my computer instead of the kindle fire?

I was rooting a kindle fire for a friend and now my pc doesn't work. Symptoms are: inputs no longer work (usb or serial or dvi; hdmi produces a flicker but displays a message "no valid input" so I ...
0
votes
1answer
19 views

Graphics card doesn't output

I had a fully working computer set up with a Corsair CX600M PSU, and a Radeon HD 5450 GPU, but I needed a more powerful GPU, so I bought a Gigabyte R9 280x, (This one: ...
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1answer
36 views

Do the molex connectors on a 2x molex to 6 pin PCI connector need to be on different leads?

My video card came with an adaptor like this Its 2 gaptoothed male molex connectors (with horribly non standard colour coding) connected to a 6 pin PCI-e power connector. I got it with a zotac ...
0
votes
1answer
58 views

Computer shut off randomly - no overheating

This is the first time this has happened. I started my computer, and 40-50 mins in, it shut off. No screen, no lights, nothing. I believe the ssd or vents still made some sound though (yes, my ssd for ...
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1answer
25 views

How to lessen performance impact on Dell laptop with defective power system?

A few months ago, I replaced a broken cord for my Dell Inpsiron 15 laptop. The replacement cord (a slightly different model from the factory cord) worked perfectly until a week ago, when I started ...
0
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1answer
28 views

Is it ok to use a Haswell CPU with old power supply?

I will buy a i7 4790k, and I want to know if I might encountered any problem using it with a old 250W power supply. I'm planing to get a new power supply also, but only when a I got my video card. ...
0
votes
1answer
30 views

Overloaded UPS, might it have damaged connected hardware?

I have an APC Back-UPS ES 400, and during a brief power failure (less than a minute), its buzzer sounded continuously. Looking up the manual, this apparently indicates an overload. It's rated to 240W, ...
0
votes
1answer
52 views

Computer Don't start - Changed MOBO , PSU , VGA , RAM

I have an ASUS P5W DH DELUXE with Core 2 Duo E6400 and 1GB x 4 ADATA RAM The computer failed to start and started troubleshooting. I changed the PSU (bought 3 of them) [1x450Watt , 1x500Watt , ...
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votes
1answer
32 views

Screen pitch black after random shudown, Gpu's fans full speed.

This morning I went to power up my pc and BAM. My screen is pitch black. Noticed that Gpu's fans were at full speed. Switched to my moba gpu and well, it works fine. I cant understand if it's a GPU ...
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votes
1answer
61 views

Computer shuts down randomly - suspected PSU or memory - which one is it?

I have replaced the motherboard and CPU after the old motherboard has died. Now PC is shutting down randomly (it doesn't depend on what sort of software I am running - could be working fine with Adobe ...
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1answer
149 views

Laptop battery - 100% available plugged in charging

I have a Dell Inspiron 5521 running Windows 8.1.Recently, I had replaced my battery.But my battery indicator shows 100% available ( plugged in,charging) status. I calibrated the battery but no ...
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1answer
56 views

Computer freezes and stutters when playing games

My computer whenever playing games begin to freeze and then begins to stutter. The sounds comes out of the headset, not the case. I thought it might be the PSU, so i changed the PSU. Thought it might ...
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votes
1answer
34 views

Fried my motherboard/PSU?

I was experimenting with making a custom switch to start my computer, and I was using an LED toggle switch (I know now it's supposed to be a momentary) that needed 12v power for the light. ...
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votes
1answer
3k views

Can I charge my laptop using a power bank using my laptop charger?

I have a Dell XPS-1530 laptop with a 9 cell battery. It's working fine but I was just wondering whether I could use a power connector or something to plug my laptop charger's 3 pin plug into another ...
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1answer
50 views

Laptop Turning On and Off

Just for a heads up, I am not computer hardware savvy, but I do have a basic understanding of parts and what they do. I have not replaced any parts other than the hard drive but that was before the ...
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1answer
240 views

New graphics card - System shuts down when gaming

I bought a new Graphic card yesterday, a Geforce GTX 970, and I swapped it with my old one. and I realize now that maybe I should have done some more research about it beforehand, as it seems there is ...