The power tag has no wiki summary.
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2answers
29 views
My computer just starts when power is applied (without the need to press the power button)
There is a similar post about this issue, but mine is slightly different.
I've just built another computer and I haven't yet connected the power and reset buttons to the motherboard, but I have ...
0
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1answer
34 views
Can't turn computer on after re-attaching hard drive
I have an Eee PC 1008HA. A few days before I got a virus that was preventing the Windows to boot but I could turn the computer on.
I opened (disassembled) the Eee PC, then disconnected the hard disk. ...
1
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2answers
30 views
How to plug power/reset buttons from case to motherboard leads?
I have a motherboard I salvaged from a pre-assembled computer. Except now I'm trying to use it in my own custom build. The problem is, this motherboard doesn't have any documentation because it was ...
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1answer
20 views
Second network card appears fried. Why and how to prevent a third?
So I have an old computer functioning as an OpenBSD router for my home network. I had 3 network cards, one to wired home network, one to wireless network, and one to my modem. One day, pings magically ...
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2answers
28 views
Power requirements for this build enough? [closed]
I am currently in the process of building a series of desktop base units to act as a cluster (running Linux). It will be running 24/7 mostly so i need something that lasts.
Here are the specs:
CPU: ...
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1answer
26 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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2answers
82 views
Can I use a charger with less Ampere than the original?
I have a Sony Vaio PCG 61212W laptop.
Because I got it from India, I needed a Uk power cord. I therefore ordered a power cord which is 3A and 250 volts. But the one I have with me currently reads ...
2
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1answer
84 views
LAPTOP will not charge battery or run on AC power
I have a Toshiba satellite c655-s5049 that will not charge and will not run with the power cord plugged in. The only way to use it is to charge the battery on a similar computer and use it on battery ...
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3answers
385 views
What do you do when you're not allowed to turn off the computer (but must)?
We've all been there. You're installing a new major system for a client and you're finishing up with installing all required updates and this happens.
Image taken from petur.eu
Or, more ...
1
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1answer
45 views
Safe to shutdown by pressing power button 1. in bios setting mode 2. in bootloader?
Is it safe to shutdown my PC by pressing the power button
while it's in the BIOS setting mode?
while it's in a bootloader (in my case grub), without a timeout?
If not, are there any good way to ...
1
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1answer
128 views
How can I switch off power to a USB port (without disabling the port)?
There are some circumstances where I would like to switch off power to a USB port, but still allow the port to function as normal.
Is it possible to switch off power to a USB port using software ...
3
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2answers
145 views
Does it use less power to connect to a tethered phone using USB or wifi or bluetooth?
If you are tethering to the internet through your mobile and your notebook is low on power you may want that connection to use the least possible power for your notebook. A USB connection will charge ...
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1answer
80 views
My computer shuts off while I'm using it and when I try to turn it on, the fans go off
It's an emachines ET1831-01.
About two years ago the power went off a lot while the computer was being used. After a while it would turn off while in use and when we I would try to turn it on the fans ...
0
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1answer
127 views
Laptop keeps shutting off at random
My laptop has been just randomly shutting off. I've had my laptop for about 3-4 years and I've kept it good as new. But sometimes when I leave it on and come back to it after 2 mins, the computer will ...
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4answers
229 views
Lost Power During apt-get install, Can't Resolve Missing Dependencies
I tried to install mercurial today, and the power went out. Now, when I try to install any packages, it complains about a couple of different things:
>$ sudo apt-get install mercurial
[sudo] ...
0
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1answer
67 views
Computer shutdown and will not power back on
Windows 7 64 bit. Was running a normal app (compiler IDE). System shutdown as if there was a power loss, but there was not... Started back up in Windows safe mode. Started up fine, but approx 2 ...
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3answers
142 views
APC ups es 700 randomly overload
First of all, I live in Italy, Europe, so keep this in mind for Volt/Watt considerations. Standard voltage in Italian apartments is 220V.
In my living room I have 2 APC ups, one being an ES-550 and ...
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1answer
145 views
Front panel (USB, headphone jack) standalone/replacement?
I have a problem with the front panel inputs on my Antec Twelve Hundred case that started a couple of weeks ago. The computer will intermittently restart when a device (USB flash drive, USB hard ...
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0answers
131 views
Power supply flashes green light instead of steady green, when I unplug motherboard it stops flashing
I have a very strange power supply issue as it appears. My computer is HP Pavilion a6120n, a bit old, I must say.
I had some power jumps today as I accidentally shorted ground and neutral, causing ...
0
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1answer
86 views
Sony VAIO power button does not react from time to time
I have a brand new Sony VAIO S series, running a non-bloated and non-preinstalled Windows 7 ultimate edition, which randomly? does not react at all when pressing the power button, even when the ...
0
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3answers
59 views
Computer takes a minute to power on
For about a week, my desktop has been acting weirdly.
Sometimes, after pressing the power button, it turns on instantly.
Sometimes it does not react at all. No sounds, no lights, nothing beyond the ...
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0answers
17 views
How can I move a core into a specific C-state?
I am trying to use Monitor/Mwaint instructions on Intel CPU to change the C-state.
and I am getting illegal instruction error.
I have verified using CPUID that the processor supports these ...
2
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3answers
149 views
PC shut downs automatically after 10-20 second. No POST screen, no beeps
I have this not-so-old computer that's not being used for a year or so.
Specs:
Motherboard: ASUS PN5-E SLI
CPU: Intel Core2Duo E4300
RAM:2x2GB SuperTalent DDR2-800
VGA: Zogis GeForce 7950GT
PSU: ...
0
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1answer
90 views
Mac randomly shutting down with APC UPS
My Mac is randomly shutting down even though I have an APC UPS. I bought a new Mac, and the same thing is happening with this computer, so it is not a power supply issue. Any ideas?
The UPS ...
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1answer
191 views
Asus Zenbook UX31 sometimes loses power when plugging in AC power
I wonder what could cause this problem.
about 1/10 times when plugging in the AC adapter into my Zenbook, the laptop completely loses power.
I always plug in the cable into the outlet first, as I've ...
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0answers
70 views
Why isn't my computer turning on?
I did a test boot with just the CPU and power supply hooked up to the motherboard. I tried to short the 2 power pins on the motherboard, but that didn't work. However, when I shorted all of the ...
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0answers
24 views
How to profile powering off in linux?
I used bootchart to check what takes how long to load. But my rebooting is also taking a lot of time. I'm trying to find out what's taking the most time to terminate when shutting down.
Are there any ...
11
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3answers
901 views
Can a PC be set up not to shut down when unplugged?
I have a laptop now, and I love that when the power goes out accidentally (blackout from a storm, accidentally gets unplugged...), the laptop does not shutdown on me, it just switches to battery ...
1
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1answer
36 views
Computer hard-rebooting when using Windows, but the BIOS works
My computer keeps shutting down instantly when I'm in Windows – as if you pulled the power cord. There's no bluescreen or anything like that. Then, it starts up again. This happens at random after ...
0
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1answer
47 views
Windows notebook power consumption monitor
Is there some kind of SW similar to Android phone's power monitor?
I would like to know the amount of power the wifi/various applications have taken.
1
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3answers
228 views
Will turning off cores in an i7 save any energy?
I've got a Core i7 @ 950. Which eats a bit too much, and I would like to get the lowest consumption possible. If I turn off some of the cores. Will that save me some energy (in idle)?
1
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1answer
60 views
Power Saving in Ubuntu ( Linux )
I installed the PowerTop application in Ubuntu 11.04 and according to it, npviewer.bin is consuming more power than other processes.
What is npviewer.bin? Why does it take most of the computer's ...
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2answers
321 views
How can I make Windows 8 battery life decent? [closed]
My Windows 8 Consumer Preview laptop gets great performance, but horrible battery life. It had excellent battery life while it was running Windows 7. Why?
I've made the power plan use as little CPU ...
0
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0answers
23 views
Linux ( RHEL ) on Power
Is there anyone here who has used RedHat Enterprise Linux on IBM Power Systems?
If so, any gotchas compared to vmware(intel) ?
Does the RedHat Linux for Power systems has a Java Development Kit ...
0
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1answer
26 views
Does a MBP with is a lower base frequency CPU - but same generation - draw less power?
When purchasing a new MBP I want to optimize it for mobile usage.
There are different quad-core i7 processor available for the 15'' MBP. See the list here. While they have different features, all of ...
1
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1answer
89 views
New build not powering up
So, I ordered a bunch of parts and put them together. They should all be compatible.
My power supply unit is not faulty. It works fine when I plug it into my other system. It does not work in my new ...
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1answer
52 views
Laptop DC voltage being changed
I got Toshiba Laptop, The voltage of Charger being changed when Plugin the Power, but When I checked the charger without plugin it shows correct Dc voltage and current by Digital Multimeter. Please ...
2
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1answer
46 views
Estimated power draw for different power states?
What would be a raw estimate of the power draw of a semi-modern desktop PC, in different sleep states? Will the suspended state (with powered RAM) draw much more power then the PC in hibernation ...
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0answers
104 views
Dell XPS power cord falling out solution [closed]
I found a solution after playing around with all kinds of methods-even Velcro. Velcro worked for a while but wore out. My latest invention for my XPS is a piece of an old spring shaped into an omega ...
0
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0answers
49 views
After leaving display on overnight, I cannot get the Windows login screen up on the display, via the DVI cable alone, no matter what I try
When I come back to my computer, after leaving it on overnight, the display gives me a no signal message. I cannot get the Windows login screen up on the display, via the DVI cable alone, no matter ...
0
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0answers
199 views
Network card (link-status LED) still active after shutdown from Windows 7 (but not from XP)
When I shut down Windows 7, my NIC remains active and the link status LED on the router remains lit. When I shut down Windows XP, it does not. Further, rebooting XP causes the NIC to shutdown as well, ...
1
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1answer
91 views
My USB devices sometimes flicker on boot
I have a problem with a PC where the power sometimes acts up on boot. This PC has a mouse with back-lighting. The back-lighting on the mouse will 'sometimes' flicker and the PC will not accept any ...
2
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0answers
30 views
Can append only NTFS files become corrupted if power goes out?
NTFS journals metadata so the file system itself doesn't corrupt if the machine goes down. I read this is not the case for file data itself. But what if the data is only appended at the end of the ...
0
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2answers
129 views
How many amps does a standard Core 2 based computer and a CRT require?
How many amps do a standard Core 2 based computer (assume ATX form factor with fans and a decent graphics card) require? Can a system be safely run on a 20 amp breaker?
2
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3answers
142 views
Would this short circuit?
My computer case has a built in fan which uses a Molex 8981 connection for power, but before reaching the fan, the wires split to form another male molex connector.
My problem is that if I was to ...
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1answer
59 views
Why doesn’t the screen turn off when playing music
I often listen to music on windows media player. I have screen set to turn off after 10 minutes. However, it doesn’t turn off when music is playing. Why?
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1answer
127 views
Win XP Screen saver / power management not working
I have a PC running Win XP, and even though I have the power management set to turn off the monitor after 10 minutes, and I have the windows screen saver set up, many times they never kick in. I come ...
0
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1answer
64 views
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 ...
3
votes
3answers
252 views
Computer hangs due to underpowered UPS?
I just bought a new UPS. Now since I started using it I experienced at least 3 random freeze in Windows 7 and it happens during the first 10 minutes of start-up. Note when I say freeze, I mean I ...
4
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2answers
137 views
Why does my computer randomly power off?
Situation:
have a 6 year old PC but it powers off randomly, sometimes it will take a few hours, or sometimes it won't happen at all
when it does happen, the system loses power, but the mobo power ...
