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• Computer Randomly Restarts (no crash dump)

  - by Bruno Charters

  Hey everyone this is my first time here, so, my computer got pulled out of his place the other day by accident and it never got back to working decently ever again. I just stopped using it because everytime i power it on, it restarts. Some times it doesn't even reach the desktop, others it even allows me to run a game or something. It gets really random. Today i was trying my last attempt before sending it to fix and it ran fine for 40 minutes but as i tried to run a game the screen got really messeud up full of colorful lines and stuff and i'm assuming it had to do with the graphics card. Altho, my question is, what can be causing all this restart thingie? Can it be just the Power Supply failing me and hence, not giving enough power to make the graphic card go for instance? My computer specs are: Motherboard: Asus P5KPL - AM CPU: Intel QuadCore 2.33 ghz Graphic Card: Nvidia GeForce GTS260 Ram: 2x2gb ddr2 Power Supply: Nox Urano 500W Thanks in advance, Bruno Charters

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• Why did my laptop turn off?

  - by darenw

  Normally I can slip my running laptop into a backpack, go somewhere, and if it's no more than about half an hour later, it'll still be running. At the destination I plug in the AC power unit and all is well. I run it off of the AC unit before and after the trip, have the screen at less than full backlight brightness, and don't have any peripherals that burn power. Sometimes the wireless switch accidentally slides in the backpack, and that causes extra power to be used and the laptop dies before I reach the destination. Sad, but so be it. But sometimes the wireless switch is off, I've reached the destination in less than 30 minutes (typically 10-20 min), and I know the battery was fully charged, yet the machine is off. Is there a way to determine, after the fact, why the machine shut itself off? I'm running Linux on a fairly powerful Gateway with 4GB RAM, fancy nvidia graphics, dual core cpu, chosen more for number crunching power than battery life, but should last easily for half an hour if not an hour.

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• I need to understand why my server turned off

  - by Dema

  Our organization was robbed and definitely it was inside job. I was set up. I work as a manager and as system administrator in this organization and everything goes against me. The only clue I have is that someone accidentally or intentionally turned of a server that is in the office indicating that some one was inside at the time that no one should be. This is the only evidence I have that can justify me.  I looked the log files and they show that the Power button was pressed. Can you help me to find out that that was not a bug or systems overheat? I will post the log files and if you will ask more I will gladly provide the information. Messages: Dec 24 21:43:14 jamx shutdown[27883]: shutting down for system halt Dec 24 21:43:15 jamx init: Switching to runlevel: 0 Dec 24 21:43:15 jamx smartd[3047]: smartd received signal 15: Terminated Dec 24 21:43:15 jamx smartd[3047]: smartd is exiting (exit status 0) Dec 24 21:43:15 jamx avahi-daemon[3015]: Got SIGTERM, quitting. Dec 24 21:43:15 jamx avahi-daemon[3015]: Leaving mDNS multicast group on interface eth0.IPv6 with address fe80::221:85ff:fe11:8221. Dec 24 21:43:15 jamx avahi-daemon[3015]: Leaving mDNS multicast group on interface eth0.IPv4 with address 82.207.41.239. Dec 24 21:43:15 jamx shutdown[27962]: shutting down for system halt Dec 24 21:43:15 jamx saslauthd[2983]: server_exit     : master exited: 2983 Dec 24 21:43:29 jamx nmbd[2921]: [2010/12/24 21:43:29, 0] nmbd/nmbd.c:terminate(58) Dec 24 21:43:29 jamx nmbd[2921]:   Got SIGTERM: going down... Dec 24 21:43:31 jamx clamd[2526]: Pid file removed. Dec 24 21:43:31 jamx clamd[2526]: --- Stopped at Fri Dec 24 21:43:31 2010 Dec 24 21:43:31 jamx clamd[2526]: Socket file removed. Dec 24 21:43:31 jamx mydns[2645]: jamx.org.ua up 9h44m48s (35088s) 117 questions (0/s) NOERROR=117 SERVFAIL=0 NXDOMAIN=0 NOTIMP=0 REFUSED=0 (100% TCP, 117 queries) Dec 24 21:43:31 jamx mydns[2645]: terminated Dec 24 21:43:34 jamx ntpd[2512]: ntpd exiting on signal 15 Dec 24 21:43:34 jamx hcid[2265]: Got disconnected from the system message bus Dec 24 21:43:35 jamx rpc.statd[2167]: Caught signal 15, un-registering and exiting. Dec 24 21:43:35 jamx portmap[28473]: connect from 127.0.0.1 to unset(status): request from unprivileged port Dec 24 21:43:35 jamx auditd[2021]: The audit daemon is exiting. Dec 24 21:43:35 jamx kernel: audit(1293219815.505:4044): audit_pid=0 old=2021 by auid=4294967295 Dec 24 21:43:35 jamx pcscd: pcscdaemon.c:572:signal_trap() Preparing for suicide Dec 24 21:43:36 jamx pcscd: hotplug_libusb.c:376:HPRescanUsbBus() Hotplug stopped Dec 24 21:43:36 jamx pcscd: readerfactory.c:1379:RFCleanupReaders() entering cleaning function Dec 24 21:43:36 jamx pcscd: pcscdaemon.c:532:at_exit() cleaning /var/run Dec 24 21:43:36 jamx kernel: Kernel logging (proc) stopped. Dec 24 21:43:36 jamx kernel: Kernel log daemon terminating. Dec 24 21:43:37 jamx exiting on signal 15 Acpid: [Fri Dec 24 21:43:14 2010] received event "button/power PWRF 00000080 00000001" [Fri Dec 24 21:43:14 2010] notifying client 2382[68:68] [Fri Dec 24 21:43:14 2010] executing action "/bin/ps awwux | /bin/grep gnome-power-manager | /bin/grep -qv grep || /sbin/shutdown -h now" [Fri Dec 24 21:43:14 2010] BEGIN HANDLER MESSAGES [Fri Dec 24 21:43:15 2010] END HANDLER MESSAGES [Fri Dec 24 21:43:15 2010] action exited with status 0 [Fri Dec 24 21:43:15 2010] completed event "button/power PWRF 00000080 00000001" [Fri Dec 24 21:43:15 2010] received event "button/power PWRF 00000080 00000002" [Fri Dec 24 21:43:15 2010] notifying client 2382[68:68] [Fri Dec 24 21:43:15 2010] executing action "/bin/ps awwux | /bin/grep gnome-power-manager | /bin/grep -qv grep || /sbin/shutdown -h now" [Fri Dec 24 21:43:15 2010] BEGIN HANDLER MESSAGES [Fri Dec 24 21:43:15 2010] END HANDLER MESSAGES [Fri Dec 24 21:43:15 2010] action exited with status 0 [Fri Dec 24 21:43:15 2010] completed event "button/power PWRF 00000080 00000002" [Fri Dec 24 21:43:34 2010] exiting

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• diagnosing random power down crashes on a hackintosh [closed]

  - by Iain

  I have a hackintosh running on a Gigabyte P55M UD2. It has run without a single issue as a hackintosh for about 9 months, and the machine is about 2.75 years old. Never had issues when it was just linux box. Power supply is 750 Watts. It recently started spontaneously rebooting, no seeming connected to any particular use case or ram/cpu load. There is no hanging or anything, just suddenly acts like the power went out. The frequency of which seems to be increasing. I've tried using just one of each of the two ram sticks, and it happens with either one in. I'm not sure what to try next, is there some way of determinging whether it's a mobo, cpu, or powersupply issue short of replacing them all? thanks! Iain

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• What Is The Proper Laptop Battery Care While Running Laptop Solely On Battery?

  - by Boris_yo

  Because of convenience, I had to move my laptop to another room away from room where I always ran laptop on UPS without using battery. Since so far I always run laptop on battery, I question the proper usage to prolong battery life. Currently I run laptop on battery with power supply so battery is constantly being charged until it is full 100% and when it is, I disconnect power supply and continue working until battery meter shows 10% remaining. That's when I plug in power supply and let it charge until 100% once again while I work. But it takes a lot of time to fully charge laptop while working since my power supply is 60W which should be the reason of such slow charge and I think the kind of charger that I use is express charger. The thought of charging laptop until full, all while doing my work makes me think that if it takes way more time to charge, it might keep battery running warm for the period of charging time which brings me to question about whether I should keep running laptop as I've described above or it would be better to leave power supply constantly connected to laptop to keep battery between 99%-100%? On one hand it won't keep battery warm but it will try to frequently supply charge to battery once it gets 99% to replenish charge to 100% (which might reduce battery life?). On the other hand if I'll keep working solely on battery and recharge it when below 10%, the battery will get warm but only when charged. Can anybody suggest the correct way of running laptop on battery to ensure better battery life? Dell Latitude E6420 Windows 7 64-bit

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• Chassis fans and power LEDs still work in Hibernate

  - by Jaded

  I have ASRock Z68 Extreme3 Gen3 motherboard recently updated to 2.20 BIOS version. OS is Windows 7 x64. The problem is after that update full hibernation (by that i mean full system power off) stopped working although everything was fine before. Now when I press hibernate, sleep in initiated as usual, monitor goes to sleep, HDD and CPU fan stop spinning, but chassis fans (i have Gigabyte Aurora 3D 570 case with two rear and one front fans) still remain working. Also power leds are lit as if computer is turned on. Tried changing different UEFI settings related to sleep mode, and none of them change above described behaviour. I have "Deep Sleep" (Advanced-South Bridge Configuration) set to "Enabled in S4-S5", "Suspend to RAM" (Advanced-ACPI Configuration) set to "Auto", all fans settings in "H/W Monitor" set to "Auto".

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• How much money can I save from installing a 80 plus bronze or gold PSU? [closed]

  - by David

  Currently I've only a 300 watt PSU and my pc is working like a charm but with all the components it should use the psu to the max. Recently I've read about 80 plus certificate and I'm wondering if it's worth to buy a 80 plus certificate psu? My power cost last year was also higher then before and my pc turns almost 14/7 a day. I mean power cost in used power not in augmented prices. I'm also planing to buy a SLI video card.

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• Laptop not powering down when lid is closed, but when lid is opened

  - by BENBUN

  Currently when I close the lid of my Acer laptop running Windows Vista, the laptop does not power down; however, when I open the lid it does. When looking at the power settings it is set to power down when closing the lid. The trigger to this seems to be the lid being opened not being closed. I seem to recall this behaviour changing when I installed Windows Media centre. Any ideas on how I can get the power down to work on the lid closing? Thanks.

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• Why does my screen dim on a desktop installation of Windows 7?

  - by Robert Cartaino

  Periodically, while using my Windows 7 Pro desktop installation, the screen suddenly dims. The brightness is about 75% normal (estimate). It's as if I am in a power-saving mode on a laptop running on batteries. But this is a full desktop installation. I know it is not a hardware glitch or monitor adjustment issue because the Windows cursor is still bright white while everything else goes dim. The Control Panel Power Options have not been changed. They are set to "Balanced [active]" and I have tried restoring the default settings. Flipping through the power and display settings, everything looks "normal." There is no screen saver or power-off-after settings apparent. Rebooting the system resets everything to full brightness but I can't find a way to restore it in Windows or to keep it from happening in the first place. Suggestions?

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• Laptop changes closing lid power options based on media/music playing

  - by Backdraft

  Hi, This is on a Lenovo X60 running Windows 7 Professional. This is just a pet peeve of mine, but I was wondering if it were somehow possible to have my laptop autodetect whether any media/music is playing on and change/switch the "Close lid" options under Power Options, ie. when something is playing change state to "Do Nothing" otherwise change state to "Sleep". I guess I can probably set a some key combo up with AutoHotKey to do it, but was hoping Windows could detect and switch my Power Options automatically. Thanks.

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• Dell Power Edge R515 - Replacing a Bad Hard Drive in a RAID

  - by LonnieBest

  I've ordered a new hard drive to replace a bad one in a Dell Power Edge R515. The manual covers obvious topics regarding physical replacing of hard drives, but I've never done this before on a production server where RAID is involved. I've heard people talk about this topic, and I've heard that some servers have RAID controllers that are smart enough to allow you to just put in the new drive (hot swap), and then the server will know automatically how to rebuild that drive to be what the old one was to the system. Where do I find the proper procedure for replacing a failed hard drive on a live production Dell Power Edge R515? Can someone with experience tell me how easy or hard this usually is?

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• Enabling the Power State Change Beep

  - by digitxp

  I have a Thinkpad T430s. I found on other Thinkpads there's a beep when you plug or unplug the AC cord. While I hear a lot of people say it's annoying it seems like a very useful security feature. However, when I go into the Power Manager the option to beep on plugging/unplugging ("Power State Change Beep") isn't there, even though it's in the help file already. I know it would be easy to rig a software solution to this event, but it would kind of defeat the purpose if it doesn't beep when it's in sleep. Is there a way to get this beep on my laptop?

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• CPU clock scales down so computer is unusable after switching to battery

  - by Ryan

  When I am plugged in my laptop runs great however when I unplug it and I'm on battery power my CPU clock speed scales down pretty much all the way. I know this is happening by monitoring the clock speed. When plugged in it will usually stay between 1000MHz and 3000MHz but when I unplug it it quickly scales down to less than 500MHz and will get as low as 100MHz and it will NEVER scale up at all on battery power. After I plug the power back in it will then begin operating normally in about a minute. I have tried setting the MIN and MAX CPU performance in power options to 100% and have tried messing around with cooling settings which seemed to be a problem with HP laptops. I have a Toshiba Satellite M500-ST6444 running Windows 7. The BIOS is up to date. I have tried two versions.

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• How to disable monitor "sleep" on Ubuntu without access to X?

  - by exhuma

  I just received a CuBox (basically a tiny ARM based PC). It comes pre-installed with Ubuntu, and I did not (yet) want to fiddle with the OS itself. My aim is to have it automaticall start a browser in fullscrren upon boot. Using chromium with the "--kiosk" flag works perfectly in that regard. But now I have the problem that the screen turns off after a certain time. I managed to turn off the screen saver using: gconftool-2 -s /apps/gnome-screensaver/idle_activation_enabled --type=bool false And tried to turn off the power management using: gconftool-2 -s /apps/gnome-power-manager/ac_sleep_display --type=int 0 and gconftool-2 -s /apps/gnome-power-manager/timeout/sleep_display_ac --type=int 0 Neither of the power-management commands worked. Theoretically I could hook up a mouse and keyboard and configure it manually. But I want to learn how to do it over the console. The box will eventually be only reachable via SSH. So I'd like to be able to trouble-shoot it later. I don't quite know where to look for. I searched the gconf tree using gconftool-2 -S for anything related to the terms power, idle and sleep but did not find anything promising. Maybe it's not even gconf related... Any ideas what else I could look for?

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• ESXi standalone host cannot power on any virtual machines

  - by Mark Henderson

  I have a standalone VMWare ESXi host on ESXi 5.1. It currently has a handful of VMs powered on, and they are running fine. If I try to power on any other VM - any VM at all - I am receiving the following message: Power On virtual machine:A general system error occurred: The virtual machine could not start I have been through everything on KB2001005 and KB1006232 and their steps are either not applicable, or don't change anything. Nothing is generated in the virtual machine's log file. Where can I troubleshoot from here?

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• My 386sx refuses to start in cold days

  - by Armadillo

  My old computer refuses to start in cold days. So, in really hot days (about 40ºC / 104ºF ) or even hotter, this PC usually starts, but in cold days, it wont. When the temperature is not in the "sweet-spot" the power light turns on for an half a second and then the computer turns off. But when it's really cold, not even the power light turns on, nor even a blink. Sometimes I use an Hair dryer, pointed directly to the PSU and that works great. 5 to 10 minutes is enough, depending on the ambient temperature. I think something is going wrong in my AT power supply. I can't replace this PSU for another because it has a non-standard size and connectors to power the motherboard. Does anybody have a clue about what it's failing in my PSU, so I can change that component (resistor, capacitor, ??, etc) and rock on with my 80386? Thanks

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• House Wiring for Ethernet/Coax/Power

  - by Adam Kragt

  Hoping this is the right place to post, the rest didn't seem to fit. If not, I apologize. Remodeling my house and want to wire up each room with Ethernet/coax wall ports. Both Ethernet, coax and power will be running through the sub-floor. I've read that there needs to be 2 ft between power cables and Ethernet to limit/prevent interference. Is this true? If not, does anyone know what the distance is? Thanks!

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• Shut down by pressing the power button twice

  - by iHarry

  I have set my laptop's power button to shut down the computer when it is pressed (Windows 7 x86). But I often hit the button accidentally, and it's a rare case that I'm able to actually prevent it from shutting down. I don't want to disable it though. Is there a way so that I get a confirmation whether I really want to shut down the computer (just like in Mac OS X Lion, where a confirmation appears when the power button is pressed)?. Is there some way to bring the same to Windows 7 (and 8)?

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• PC doesn't POST with a certain model of PSU

  - by Core Xii

  I have this PC with an Asus P5N32-E SLI motherboard and an Intel Q6600 CPU. I got a new RX-5300 PSU, but it didn't work. The motherboard power LED is on fine When I switch power on, the PC powers up briefly (0.5-1 sec) then shuts down From there on out when I switch power on, it stays on, all fans and components seem to be receiving power, but the motherboard won't POST. No video output, no PC speaker beeps, nothing If I turn the hard switch on the PSU off and then back on again, go to step 2; The PC turns on and then off immediately again, and on subsequent power-ups it stays on but won't POST I disconnected every component but the motherboard, CPU and PSU. Still nothing. I tried three other models of PSU on this PC, both of higher (600) and lower (<300) wattage than the 530 on the RX-5300 and they all work fine. At this point I was convinced the PSU was faulty so I returned it. When the replacement arrived, it behaved exactly the same. So two different units of RX-5300 both with the same symptoms, neither working with this motherboard + CPU. Yet, three other models of PSU work perfectly fine. The PC store couldn't reproduce my problem with the returned PSU. I tried resetting the CMOS with the jumper. I tried with both the 4 and 4+4 (with and without the extra +4 connected) CPU connectors (curiously the RX-5300 comes equipped with both). Could it be a statistical probability that I get two units of the same model of PSU that are faulty in the exact same manner? Could the RX-5300 model itself be somehow incompatible with this motherboard? I was under the impression that PSUs were pretty much universal so long as you have the wattage. Could the motherboard be broken in some such a way as to work with certain PSUs but not others? What's going on here?

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• Which type of motherboard i should buy and why?

  - by metal gear solid

  If budged is not a problem. I just need best performance with less power consumption. I can purchase any cabinet , power supply and Motherboard. Is Power supply has any relation with Form factor? Is the size of motherboard and number of Slots only difference between all form factors? Is there any differences among form factors, related to performance of motherboard? Is bigger in Size (ATX) motherboard always better? Is it so smaller in Size motherboard will consume less power? What are pros and cons of each Form factor? What there are so many Form factor were created?

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• APC UPS-5000 Power off remote servers

  - by Vishal

  Hi there, I have a UPS connected via the serial port to a server using PowerChute Business Edition. If a power outage occurs I would like this server to start shutting down all other servers within the network. Is there dedicated software to do this? I was thinking of creating a command file which runs a .bat file to run shut down commands to each server (using PSExec). I can set PowerChute to run this command file when a power failure occurs. Is there not anything APC provide which has this functionality and is more efficient than writing a .bat file to do this? Thanks,

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• Any reasonable UPS for a Desktop PC, just to shut it down?

  - by Michael Stum

  While I do have a surge protector to protect against overvoltage (hopefully), I have nothing against undervoltage. When a lightning storm hits, I had the lights flickering at some point. The PC continued to run, but it got me thinking of getting a UPS as a way to a) have a clean 120V/60Hz power source and b) have a way to shut down the PC in case something bad happens. I heard not all UPS' protect against power spikes, so I wonder if someone has a recommendation? It does not need to keep the PC on for a long time if the power goes out, it's good enough if it shuts down the PC after 5 minutes or so. There are 2 PCs connected. One is a Core i7-860 with a Radeon 5870 running Windows 7 Ultimate (so quite power hungry. It uses a 600W PSU but I have no measurements of the actual usage), the other one is a Windoes Home Server, running WHS/Windows Server 2003. Any recommendations in the low-price segment?

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• How can I tell if my UPS is functioning properly or not for my PC?

  - by prabha

  For the last two days, my Uninterruptable Power Supply (UPS) has failed to produce the actual back up. So, I charged it for 24hrs and again checked that when the power failed my PC was automatically shut down. But in the time of power no supply from ups bt .......is my ups is working properly or not else there is direct power. It will cause any harm to my pc. my questions are..... Is the UPS functioning properly or not? If not, then will it harm my pc? If it is functioning, will it regulate direct power to pc without any cause? Is my UPS battery not working? What should I do to make my UPS batteries last for at least a year? I am using FRONTECH UPS 600va (Warranty for both ups and battery is expired) I already changed the battery 8 months previously. Note from editor: Tried to make as much sense of this question as I could. I hope I didn't alter the meaning in any way.

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• Which type of motherboard i should by and why?

  - by metal gear solid

  If budged is not matter. I just need best performance with less power consumption. I can purchase any cabinet , power supply and Motherboard. Is Power supply has any relation with Form factor? Is the size of motherboard and number of Slots only difference between all form factors? Is there any difference related to performance of motherboard? Is bigger in Size (ATX) motherboard always better?

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• Which type of Form factor (motherboard) i should buy and why?

  - by metal gear solid

  If budged is not a problem. I just need best performance with less power consumption. I can purchase any cabinet , power supply and Motherboard. Is Power supply has any relation with Form factor, should i purchase PSU according to Form factor of motherboard? Is the size of motherboard and number of Slots only difference between all form factors? Is there any differences among form factors, related to performance of motherboard? Is bigger in Size (ATX) motherboard always better? Is it so smaller in Size motherboard will consume less power? What are pros and cons of each Form factor? What there are so many Form factor were created?

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