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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1answer
140 views

What can I do when my UPS overloads?

I've got a sweex 650VA and the following hardware: i7 3770k 32 GB Ram z77 Extreme 4 MSI nVidia GTX 980 2 HDD 5.25 3 SSD 1 DVD RW All supported by a 700 W power unit. When I use particularly ...
1
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2answers
20 views

How to Add Additional SATA Power Connectors?

I need to add additional SATA power connectors to a new machine. I am used to adapters using a Molex connector but the one I have on hand (Christmas eve) isn't familiar to me at all (please see ...
1
vote
1answer
36 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 ...
0
votes
1answer
18 views

PSU connector correct size for this motherboard?

The ATX motherboard I am looking at requires a PSU connector of size: 24+8 The PSU has connectors as such: Main connector: 20+4 pin CPU 12V connector: 8pin I am assuming the 24 here equates to ...
0
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2answers
26 views

Laptop touchscreen hypersensitive to electromagnetic interference

I have a Dell XPS 15 laptop that's less than a year old and still under warranty. I've been in contact with Dell several times about this issue, but they don't have a clue. The problem is ...
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2answers
31 views

Immediate Restart After Power On - Before BIOS

When I originally built this PC, it had an issue with randomly restarting. I proceeded to try a bunch of things and ended up unplugging everything except the power switch and the cards I have in it. ...
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0answers
33 views

How can I go about powering a laptop directly through the charger?

A while ago I thought I fried the motherboard of an old Dell E1705 laptop, and I am now realizing that may not be the case. This laptop, when the power button is hit and the battery has just been put ...
63
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5answers
5k views

Why are my games slower on battery power, even with the power plan set to High Performance?

My laptop is capable of running most games on high settings at a decent frame rate. However, if the power cable gets unplugged while I'm playing, the game immediately starts slowing down, even if I'm ...
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0answers
31 views

Graphics card fans very loud, no video/unable to boot

So let's back up a few months. I came back from work one day to find my computer on (I remote desktop to it occasionally) but my graphics card (Gigabyte GTX 770 OC-2GB version) fans running very ...
0
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1answer
30 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 ...
0
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0answers
16 views

splitting 6 pin PCI-E cables

I am trying to add a second graphics card to a workstation. The machine already has a GTX970, and i have a spare GTX550Ti and GTX275 floating around. The 275 requires 2 PCI-E 6 pin connectors, the 550 ...
1
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1answer
39 views

Is it safe to use a higher supply voltage to a peripheral?

I have an ~10-year-old hub (Surecom EtherPerfect 505ST if anyone's interested) that says "DC 7.5V" below its power connector. Unfortunately, I can't find the adapter, but I do find one that fits but ...
3
votes
1answer
58 views

is it true that UPSs act as bottleneck for computers' PSU?

Once one told me that having a low-wattage UPS would make useless my PC's trillion-watts bad-ass PSU. Is this true? Is this true even for normal plugged usage?
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votes
1answer
36 views

What can go wrong when connecting a PSU? [closed]

It will be my first time connecting a PSU. Could someone provide me a good tutorial of how to connect a modular PSU? Also, what's the worse that can happen if I connect something wrong? Can my PSU get ...
17
votes
2answers
1k views

What kind of power port is this?

I'm planning on getting a new PSU and I was shopping online when I saw this thing. What kind of port is this? I've never seen it before, and I definitely can't find cables for this. For reference, ...
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votes
1answer
25 views

Using iPod as a Mobile Battery Charger [closed]

Is there anyway to make my (3rd gen i believe?) iPod touch output power? Preferably by a vanilla app, jailbreak, or another method that doesn't require tearing it apart. It current is sitting in my ...
0
votes
1answer
8 views

Strange behaviour on LCD monitor that doesn't turn on

This monitor will only turn on on 1 out of 8 or 10 attempts at pressing the "power" button, only after I had disconnected and reconnected it to the power line before each attempt, i.e.: Connect the ...
0
votes
1answer
34 views

A bit unsure how to hook my power supply up to my video card

I'm putting together a new machine for the first time in quite a while, and I've hit a snag. My new power supply is the EVGA SuperNOVA 1000W P2 80 PLUS PLATINUM. My new graphics card is the EVGA GTX ...
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1answer
43 views

Connecting an 8 pin connector to my 4 pin CPU?

I just bought a PSU which has a 4+4 pin for the CPU. I thought that my CPU has 4 pin connector but when i removed it i realised there were another 4 on the left covered by a small plastic piece. My ...
4
votes
1answer
175 views

Is there a difference between 8-pin EPS12V and PCI-E connectors?

I was reading this article, and a question came to my mind. 8 pin EPS12V power cable 8 pin PCI Express power cable Besides the name and the color, these 2 connectors look the same. Is there a ...
0
votes
1answer
28 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 ...
0
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0answers
19 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 ...
0
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0answers
46 views

I just assembled my computer and the motherboard started smoking, how do I know which parts are affected?

I was changing my desktop case and after I got all parts together and turned it on, the motherboard started smoking next to the 4-pin power cable (the one that provides power to the processor). I'm ...
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1answer
32 views

6 pin PSU and 4 pin motherboard

recently purchased a new gigabtye 970a motherboard. The only issue I have is that while the atx 12v port on the mobo is 4 pin, the PSU cable seems to be 6 pin. Is there anyway to work around this?
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0answers
21 views

how to identify the exact type of power supply adapter for my laptop by reading the specs on the adapter?

I had this problem with power adapters in general but in this case I feel brainlocked. There are tons of specs on that power adapter, but I cannot identify it. My HP laptop has such a weird plug to ...
0
votes
1answer
30 views

Do graphics cards, HDs, and other components use different amounts of power even if they use the same slot?

I’ve had this question in my head for a while, and was finally prompted to ask after reading this question which partially hinges on the answer. My question is: does the amount of power used—and ...
0
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0answers
41 views

How can I troubleshoot why my computer shuts down unexpectedly some time after gaming

I played Shadow of Mordor on optimal settings, the temperatures were good. After I was done playing, the temperatures got back to normal in seconds of course, yet 5 minutes later my computer just ...
1
vote
1answer
43 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 ...
0
votes
1answer
36 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 ...
0
votes
1answer
41 views

selfbuilt pc shuts down and restarts. 1 long and 2 short beeps

I have built a new pc and I almost finished. When I turn the computer on I starts up but then shuts down again. The beeps I'm getting is 1 long and 2 short which I think is the video card or ...
0
votes
1answer
53 views

POST failure - Motherboard, PSU, GPU or other?

Last night, I was playing Far Cry 4 and had been at it a good hour or two when the sound suddenly broke up and stopped; next the PC switched itself off. It tried to reboot, but keep failing in a ...
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0answers
19 views

workstation making contineous beep noise

Our silicon mechanics workstation (don't know the exact model, I am guessing it is purchase 5 years ago, The model is either superX8DA3 or super X8DAi according to the manual I found on top of this ...
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0answers
22 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 ...
0
votes
0answers
32 views

What does it mean when my HDD doesn't show any S.M.A.R.T attributes?

I have a Seagate 2TB HDD (about 3 years old) and I've started having strange issues since installing a new PSU (my previous one was on the blink as it kept intermittently restarting my PC). 1 day ...
0
votes
0answers
45 views

PSU/GPU/MOBO failing? I'm at a loss here

Here is my total system specification: System Information Time of this report: 11/22/2014, 21:41:56 Operating System: Windows 7 Professional 64-bit (6.1, Build 7601) Service Pack ...
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0answers
38 views

Waking from sleep causes instant shutoff

I am going to be very detailed as this seems extremely confusing to me ... I just completed upgrading a few components in one of my builds (list of components at end of thread). Everything works ...
0
votes
0answers
17 views

reliable/redundant PSU for SOHO server build

I am after reliable SOHO server build. I went with ECC RAM, quality NAS-grade harddrive and now I am looking at the PSU. I cannot seem to find any good redundant PSUs that would fit into the ATX ...
1
vote
1answer
65 views

PC won't start. Not even to BIOS

I have a PC that’s just over a year old. Today, while playing a game, it suddenly shut down and I smelled a slight smell of something burning; no fire, don't worry~ After this “incident” my PC won’t ...
1
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0answers
53 views

What about placing a voltage regulator behind an UPS with modified sine output, to protect an active pfc psu?

I moved to an area/building where there are quite some problems with the wall-power supply. Primaraly I would like to protect my computers, secondary I would like have some affordable UPS for some of ...
1
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0answers
49 views

Power LED keeps Blinking - Asus p52f Laptop

I am facing an issue since a long time. I own Asus p52f series laptop, it's 3 yrs old right now. 2 months back I had to change the laptop battery, since I couldn't find the original Asus laptop ...
1
vote
0answers
145 views

ASUS Anti-Surge Troubleshooting [closed]

I assembled a computer last year, and I've had some trouble, but now I'm at a point where I'm just not sure what the best course of action is. Here is the problem, So about a week ago, I was playing ...
0
votes
0answers
45 views

Dell docking station only works when power supply unplugged

I recently was forced to get a new Dell M6500 chassis and hard-drive for work to replace my old identical model laptop. I have a Dell docking station connected to some peripherals and a second ...
0
votes
1answer
30 views

What size is the barrel connector required for a Sprint Airave 2.5 signal booster?

Can someone please tell me what size barrel connector tip is needed for ac adapter for Sprint Airave 2.5 signal booster?
0
votes
1answer
49 views

Lenovo power supply

I have two Lenovo laptops and I can't remember which power supply adapter goes to which. One power adapter output is 20V and 2.25 amps, the other is 20V and 3.25 amps. If I were to switch the power ...
0
votes
1answer
61 views

Case/PSU grounding, static causing reboot

I built a machine for work recently that is displaying two distinct characteristics. One: Yesterday, I was able to shuffle feet on our carpet, touch the front of the case, arc static, and the machine ...
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votes
1answer
41 views

System won't respond to Power Switch

I ran into a problem - I can't start my new system at all: when Power Switch is pressed nothing is hapenning, even cpu/system fans are not moving for a split second. And I just was at the shop where ...
2
votes
1answer
43 views

Do Graphics Cards with power connectors still draw 75W from the PCIex16 slot?

The PCIex16 slot on mainboards is specified to supply a maximum Wattage of 75W, so lower end Graphics cards don't need additional power connectors. What about Graphics Cards that do have one or ...
0
votes
1answer
54 views

How do I turn off MagSafe light?

When I go to sleep at night, the two green lights (emitting from both sides of the MagSafe connector of my 13" MacBook Air's power adaptor) light up my whole room. How do I turn these off? I ...
0
votes
1answer
78 views

WD external hard drive turns off

I've got an external hard drive (WD500BMVU) that was dropped and now does not mount anymore if I connect it to my Laptop (Mac). When I connect it with the USB cable, the LED light goes on, I hear the ...
1
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0answers
39 views

How to run an application in linux just before poweroff and after linux shutdowned itself

I have a embedded system that needs to be power off itself after shutdown. To power off, the Linux should send a command via an i2c to another device to power off the Linux board. So to shutdown and ...