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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33 views

Computer doesn't start when 12V CPU power plugged in

Configuration (troubleshooting): Board: Socket AM3+ Gigabyte GA-78LMT-S2PT CPU: AMD FX4300 PSU: 500W Peak Other components: GPU: ASUS Nvidia GTX960 Mem: 12GB (8+4) 1333 HDD: Seagate 1TB SATA ...
0
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0answers
38 views

How to properly calibrate new laptop battery which shows full capacity as ~20% of designed capacity?

I have a very unique problem as I can see. I have bought a new battery (not original brand) for my 3 years old Toshiba Satellite L750 (running Win 8.1 Pro) notebook. My old battery was about ...
0
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1answer
31 views

Can i convert a ATX12V 4 pin into a 4 pin molex (IDE)?

I need to connect two 4-pin molex connectors to the backplane of my NAS (Silvstone DS380) but the PSU i use (Seasonic SS-250SU) did only come with one Molex connector. Since i don't want to put all ...
5
votes
3answers
1k views

Witcher 3 causes PC to restart randomly

(Not sure if I am asking at the right site, as it might be software/hardware related and not exactly gaming. I guess I'll post this question on Arqade too.) I have been having this problem since 2 ...
0
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0answers
68 views

What's the pinout for Fujitsu 16-pin PSUs? ( eg. model D12-250P1A )

The Fujitsu ESPRIMO P420 E85+ desktop PC ( and probably various other Fujitsu models ) uses an apparently proprietary PSU with a 16-pin Molex connector. The PSU is described in Fujitsu's sparse ...
0
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2answers
48 views

Power cord blew, computer is now sporadically slow

So I have a substantial gaming/ graphic arts computer running Windows 7 Ultimate. A few weeks ago I was playing a game when my power cord blew. The computer instantly shut off and there was a hole in ...
0
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1answer
21 views

Macintosh SE PSU Servicing?

First thing's first: I take full responsibility for any injury sustained while servicing a PSU. Any advice offered here is to be considered purely subjective. I own a Macintosh SE, which was ...
0
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1answer
50 views

What would happen, if my PSU suddenly couldn't provide enough power?

I've just recently bought a new GPU to replace my old one, and am awaiting its delivery. In the meantime, I've decided to have a look at my PSU, since my new GPU has a higher TDP than my old one. ...
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0answers
55 views

Computer Freezing/Crashing While Gaming, I've Checked Everything, CPU or Motherboard?

MSI P67A-GD65 (B3) Intel i7-2600k NVIDIA GTX 980 16GB DDR3 EVGA 750W PSU I've been having an issue when gaming. They're either crashes or hangs, whatever you want to call them. Both screens will ...
2
votes
2answers
105 views

Computer crashing about 20sec into booting (even in BIOS). CPU or Motherboard?

EDIT: we seem to have narrowed the problem to CPU or Motherboard. Is there any way I can identify the cause between these 2 without a spare part to test? I was playing Minecraft for the first time on ...
1
vote
1answer
30 views

Computer crashing at random

I've been having a "small-ish" issue where my computer randomly shuts down. Be it in the middle of a game or work etc, even on idle, it just crashes and reboots. no BSOD or anything. One minute it's ...
1
vote
1answer
31 views

Desktop doesn't boot [closed]

So I think I stuck a chunk of incompatible RAM on my mobo, smelled a burning smell and after switching out the RAM my machine wouldn't boot. Assumed mobo was fried and got a new one. I also recently ...
0
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4answers
605 views

PSU for GTX 970 + i7 4790 [closed]

For my new PC I'm currently looking at getting an Intel i7 4790 (non "k" version) and a GTX 970 as the main components for the system. It will also be running an SSD, HDD, Network card, and 32GB of ...
0
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0answers
53 views

ASUS Z87-PRO cannot power-on via USB from S5

I have the ASUS Z87-PRO connected to a Seasonic S12 II Bronze power supply. All USB ports are powered while the device is powered-off - S5 (by having the "ErP ready" option in BIOS disabled). I ...
1
vote
0answers
91 views

Can a PCI-E 6 pin cable be used in-place of an 8 pin cable?

I yesterday returned my GTX 960 as it was faulty, and have bought an R9 290, which requires two 8 pin PCI-E cables. I have two 6 pin PCI-E cables, which supplied power the 960. The only difference ...
1
vote
1answer
49 views

Lock computer vs. Switch user

I am the only user on my PC, what is the techinical differnce between locking it and switching user? Does one of the options do a better job of preventing internet connection disruptions (p2p)?
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1answer
86 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 ...
1
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0answers
30 views

What could cause a GPU upgrade to result in a 50% performance loss?

Background (The Why?) I'm using AMD Graphics Cards for distributed GPU computing. BOINC, Folding-at-Home, and similar. The Problem I've replaced my old card, an R7 260x, with a much more powerful ...
0
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1answer
44 views

Airflow PC, decision where to put holes [closed]

I have a PC configuration as follows (regarding hardware with fan): 1 x power supply 1 x CPU 1 x graphic card So my pc case is pretty tight (only way for air to come in would be via PSU or graphic ...
-2
votes
1answer
57 views

Powering 2.5" HDD via SATA but transfer data using USB?

My Mini ITX Motherboard only has 4 SATA ports, so I have ordered some USB header to USB female converters. When they arrive I will have 4 USB 2.0' s inside my case. I know that USB 2.0 will not be ...
0
votes
2answers
136 views

Is my UPS responsible for all this damage?

I have an APC Back-UPS RS 550G which I've been using in my home office for about a year. It saw me through a few power outages for which I was quite glad. However, I've lost quite a bit of time to ...
2
votes
1answer
88 views

Black Screen CPU & GPU running and fans spinning

Can anyone help me detect my problem? First here are my specs: CPU: AMD A8-5600K Monitor: Asus VX239H 1080p MoBo: Gigabyte F2A85X-D3H RAM: Corsair 8GB 1600mhz GPU: Sapphire R9 280x Vapor-X Tri-X 3GB ...
0
votes
1answer
23 views

Finding Power Supply for laptop [duplicate]

I have a HP laptop that came with an 18.5V power supply. Is this power supply unique to the point I have to go back to HP to get one or can I get one from say Radio Shack?
2
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1answer
184 views

can i connect my usb powered speakers to my phone charger? [duplicate]

I have got a 2.0 USB powered speakers which are supposed to be connected to the PC USB port. But that port creates noise in the speakers and is not very convenient. I have a phone charger of output dc ...
10
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2answers
582 views

What happens when laptops reach 100% charge?

I have been reading alot of mixed views on how Lithium Ion batteries work when it comes to laptops. I have the new dell xps 15, with an intel i7 cpu, 16gb ram, and a 512gb ssd. Is it bad for the ...
1
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1answer
78 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 ...
2
votes
0answers
65 views

Laptop died after using a SATA/IDE USB hard drive converter

So I think I have done something very bad, I have a HP laptop and wanted to recover some data from some old SATA and IDE drives. I Bought this ...
0
votes
1answer
46 views

Computer boots up automatically when given power and screen shows no display?

I have a strange problem with my computer that I am building. I had to replace the original mobo (Asrock fatal1ty H97) due to compatibility issues (the system did boot up correctly with this mobo) , I ...
3
votes
1answer
68 views

My computer has short circuited my graphics card(s) three times, and I have absolutely no idea what's causing it

Nearly a year ago, I came home to find my GPU fans spinning very loudly and my computer getting no video at all. So I restarted it, still no video output from the GPU, GPU fans are spinning at 100%, ...
0
votes
1answer
59 views

GPU driver restart just in PCI-E 16x slot

My specs are these: i5 3570k 2x 4Gb G-skill DDR3 MSI Geforce 770GTX 650W PSU (Inter Tech Energon EPS-650W - ...
0
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1answer
58 views

Why does my CPU not use it's full TDP wattage potential?

I have an Intel Core i7 3610QM (Ivy Bridge) in my laptop. According to Core Temp, the TDP (thermal design power) is 45 watts. However, when turbo boosting to the max (3.1 GHZ) on all 8 threads with ...
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4answers
201 views

Could a bad energy grid system cause a BSOD back in the year 2000? [closed]

I believe nobody here would say a PSU can't cause a BSoD, but how about just a bad energy supply from the grid? I remember back in 2000 I've fixed a constant, almost daily, BSoD issue I've had with ...
1
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1answer
51 views

What controls the HDD spindown (power cable or data cable)?

I am looking into putting together 1-2 sata drives on a dedicated board (similar to raspberry PI). I saw that there are some Mini-PCIe to sata adapters but these only contain the data link and the ...
0
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0answers
32 views

Old PC runs but sends no signal to monitor

I know this question has been asked before and I've tried everything I found without success. The PC boots and it loads the OS, I can hear the welcome sound of Windows, but there is no connection to ...
2
votes
1answer
31 views

Computer mysteriously seems to power on after surge, but no video or network

I have a box running Linux Mint I've been using as a file/plex host for about half a year to a year. Last night there was a brief power outage and I shut down both of my PCs (linux and Windows ...
0
votes
1answer
42 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
2answers
42 views

Getting a new PC built and I have some questions [closed]

In a couple of weeks I will get a new PC built and I wanted to ask if I could re-use some of the old components in the new one, since I'm on a 600- 650 euro budget. The old parts were regulary cleaned ...
1
vote
2answers
314 views

No Video Output - No beeping - Asrock H97 Pro4

3 days ago I bought these components for my new computer: AsRock H97 Pro4 Motherboard GeForce GTX960 GPU DeepCool DA700 Power Supply Intel I7 4790k CPU 1TB WD Black HDD 1x8GB Kingston HyperX RAM ...
1
vote
2answers
101 views

What is the risk of reusing my PSU? [closed]

Four years ago I built a desktop. A few days ago this desktop died (for non-PSU related reasons) and I've decided to build a new one. I would like to save $100 and reuse my old PSU, but I'm not sure ...
0
votes
0answers
62 views

How can I split the power from a single PSU between multiple motherboards (with a twist)?

I am looking to build a home blade unit to save on space (need them locally) and cost, as I need 20 - 40 servers. I've done the basic work on design, but here lies my biggest problem(s). I have no ...
0
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0answers
43 views

New PSU installed computer wont wake from sleep mode

I hope this is the right place to put this. As stated above I recently purchased a new PSU (CORSAIR AX series CP-9020045-NA/RF 760W ATX12V). Everything went well until I put my computer to sleep. ...
0
votes
1answer
69 views

Computer components keep failing! Could it be my PSU?

Less than a year ago, a friend and I built my computer, and ever since I've had outrageous hardware problems. First the Windows 8 installation my 1 TB HDD was continuously corrupted, forcing me to ...
0
votes
1answer
79 views

Power supply for 2.5'' HDD

I have 2.5'' Toshiba HDD which requires DC +5V/1.1A. I also have power supply with DC 12V/2A and 5V/2A output. It uses MOLEX connector (12V on pin1, 5V on pin4) with reduction to SATA connector. Can I ...
0
votes
0answers
99 views

External GPU through expresscard slot - Power up PSU

I got one of these: http://www.banggood.com/EXP-GDC-Laptop-External-PCI-E-Graphics-Card-p-934367.html It's an external gpu dock through expresscard slot (exp to pcie). I hooked it up to my PSU as ...
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votes
1answer
36 views

Inconsistent startup issues [closed]

My computer crashed yesterday, and I was not able to start it up again until this morning. I tried yesterday for about two hours. When I pushed the power button, the fans would start up briefly, then ...
1
vote
1answer
112 views

Graphic card connected but bios shows as empty slot

I build computer and i plugged graphic card (MSI Radeon R9 270X) to motherboard (MSI H81M-P33) and connect this to power supply (Corsair VS450) 2x6 pins but BIOS does not detect graphic card in PCI-E ...
1
vote
1answer
54 views

Modular Power supply, using other types of modular cables?

I have a corsair cx600 modular Power supply. I ordered from a company corsair cx500 modular cable by mistake.( a 6pin male to 6pin male cable) This was so I could connect my new GPU, a small form ...
2
votes
1answer
124 views

Can low voltage damage laptop or it's battery?

Sometimes I get very low voltage in my house. I am worried if I connect my laptop charger to the socket, will it damage the charger, battery or the laptop itself?
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votes
1answer
29 views

Power Adaptor Compatibility [duplicate]

my Sony Vaio Power Adaptor broke today and i wondering if i could replace the broken one with the Adaptor from my older Vaio, here are the specs : Broken Adaptor : VGP-AC19V54 Old Adaptor : ...
0
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2answers
35 views

Random shutdown on aspire 4935G

(on AC(with battery plugged) or AC only) the laptop just random shutdown without any notice when.. -left idle for some time -but this problem don't happen when the cpu busy like playing games,or ...