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• XRDP: window manager not starting

  - by niboshi

  I have setup my Ubuntu server so that I can connect and login to XRDP from Windows remote desktop. My problem is that after logging in, no window-manager is started. It only displays a single gnome-terminal with no border and gray meshed background. It seems that /usr/sbin/xrdp-sesman itself is running (from observation of ps and /var/run/xrdp/xrdp-sesman.pid). I put debugging line like touch /home/myname/aaaaa into ~/startwm.sh or /etc/xrdp/startwm.sh, but the file aaaaa did not generated after logging in, so these scripts have not been executed. (Both of them have chmod +x permission.) Am I missing some configuration file, or is there any way of further inspection? Any help is appreciated. Thanks. Contents of /etc/xrdp/sesman.ini [Globals] ListenAddress=127.0.0.1 ListenPort=3350 EnableUserWindowManager=0 # or 1 UserWindowManager=startwm.sh DefaultWindowManager=startwm.sh # or commented-out [Security] AllowRootLogin=1 MaxLoginRetry=4 TerminalServerUsers=tsusers TerminalServerAdmins=tsadmins [Sessions] MaxSessions=10 KillDisconnected=0 IdleTimeLimit=0 DisconnectedTimeLimit=0 [Logging] LogFile=/var/log/xrdp-sesman.log LogLevel=DEBUG EnableSyslog=0 SyslogLevel=DEBUG [X11rdp] param1=-bs param2=-ac param3=-nolisten param4=tcp [Xvnc] param1=-bs param2=-ac param3=-nolisten param4=tcp Contents of /var/log/xrdp-sesman.log after logging in: [20120402-21:29:34] [CORE ] starting sesman with pid 11064 [20120402-21:29:34] [INFO ] listening... [20120402-21:29:39] [INFO ] scp thread on sck 7 started successfully [20120402-21:29:39] [INFO ] granted TS access to user myname [20120402-21:29:39] [INFO ] starting Xvnc session... [20120402-21:29:40] [INFO ] starting xrdp-sessvc - xpid=11074 - wmpid=11073 [20120402-21:29:49] [INFO ] session 11072 - user myname- terminated Process tree Below is a part of ps aufx output during xrdp session: xrdp 12344 0.0 0.4 22856 8732 ? Sl Apr02 0:01 /usr/sbin/xrdp root 12346 0.0 0.0 15672 2000 ? S Apr02 0:00 /usr/sbin/xrdp-sesman root 24346 0.0 0.0 3780 872 ? S 00:00 0:00 \_ /usr/sbin/xrdp-sessvc 24348 24347 myname 24347 0.4 0.6 76468 13700 ? Sl 00:00 0:14 \_ gnome-terminal myname 24362 0.0 0.0 2220 716 ? S 00:00 0:00 | \_ gnome-pty-helper myname 24363 0.0 0.2 6912 5268 pts/13 Ss 00:00 0:00 | \_ bash myname 27902 0.0 0.0 2824 1096 pts/13 R+ 00:53 0:00 | \_ ps aufx myname 24348 0.0 0.9 24984 19216 ? S 00:00 0:01 \_ Xvnc :18 -geometry 1920x1080 -depth 24 -rfbauth /home/myname/.vnc/sesman_myname_passwd -bs -ac -nolisten tcp root 24349 0.0 0.0 16596 1304 ? Sl 00:00 0:00 \_ xrdp-chansrv Environment Ubuntu 11.10 Oneiric xrdp version: 0.5.0~20100303cvs-6ubuntu2

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• getUserPrincipal() in JCIFS / Lan-Manager authentitation level setting in Windows 2k8

  - by Chris

  I have to find out in which exact format JCIFS stores the user principal in the "getUserPrincipal()" property. Therefor i created a test Environment like this: Windows Server 2008 Domain Controller Domain named "MYDOMAIN" Many Testusers in Active Directory Tomcat Application Server with my Web Application (which simply reads the user Principal and displays its values). The user should be logged in to the web-application with SSO therefor i need the format that jcifs is using to store the user. (For example user@MYDOMAIN or MYDOMAIN\user...) I tested the Authentication with other SSO frameworks with Kerberos Method and it works as expected. I'm now trying to use SSO through the NTLMHttpFilter of JCIFS. When i try to login i get the following error message: jcifs.smb.SmbException: The parameter is incorrect. jcifs.smb.SmbTransport.checkStatus(SmbTransport.java:541) jcifs.smb.SmbTransport.send(SmbTransport.java:641) jcifs.smb.SmbSession.sessionSetup(SmbSession.java:322) jcifs.smb.SmbSession.send(SmbSession.java:224) jcifs.smb.SmbTree.treeConnect(SmbTree.java:176) jcifs.smb.SmbSession.logon(SmbSession.java:153) jcifs.smb.SmbSession.logon(SmbSession.java:146) jcifs.http.NtlmHttpFilter.negotiate(NtlmHttpFilter.java:189) jcifs.http.NtlmHttpFilter.doFilter(NtlmHttpFilter.java:121) Regarding to the documentation i'm using to configure this, this is a know issue with the Group policy. It is stated there, that i have to change the Group policy "Networkaccess: lan-manager authentication level" to respond to NTLMv1 request. I have done this, but it's still not working. So what i also have to configure is the same policy on the client computer. I have to change the policy, so that the client computer sends NTLMv1. But it is always sending NTLMv2 tokens. The problem now is that i'm somehow not able to change this setting. (I already was before) because the dropdown box to choose the authentication method is "greyed out". edit: just to make this clear, this dialog is on the client-side in the "local-security policies" As you can see from this screenshot, the chosen method is "Only send NTLMv2 responses" which is the wrong setting and i'm pretty sure that this is causing the error above. My question is now, why can't i change this setting? Why is it greyd out?

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• Unable to apt-get upgrade in ubuntu 11.10

  - by blackhole

  These are the errors shows by different client Update Manager: Traceback (most recent call last): File "/usr/lib/python2.7/dist-packages/aptdaemon/worker.py", line 968, in simulate trans.unauthenticated = self._simulate_helper(trans) File "/usr/lib/python2.7/dist-packages/aptdaemon/worker.py", line 1092, in _simulate_helper return depends, self._cache.required_download, \ File "/usr/lib/python2.7/dist-packages/apt/cache.py", line 235, in required_download pm.get_archives(fetcher, self._list, self._records) SystemError: E:Method has died unexpectedly!, E:Sub-process returned an error code (100), E:Method /usr/lib/apt/methods/ did not start correctly Synaptic package Manager E: Method has died unexpectedly! E: Sub-process returned an error code (100) E: Method /usr/lib/apt/methods/ did not start correctly E: Unable to lock the download directory Command: sudo apt-get upgrade Reading package lists... Done Building dependency tree Reading state information... Done The following packages will be upgraded: libfreetype6 libfreetype6-dev 2 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. Failed to exec method /usr/lib/apt/methods/ E: Method has died unexpectedly! E: Sub-process returned an error code (100) E: Method /usr/lib/apt/methods/ did not start correctly Can anyone one tell me how to resolve these issues ? I have no volatile packages or anything so i am even posting the preview of my sources.list file. # deb cdrom:[Ubuntu 10.10 _Maverick Meerkat_ - Release i386 (20101007)]/ maverick main restricted # See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to # newer versions of the distribution. deb http://in.archive.ubuntu.com/ubuntu/ oneiric main restricted ## Major bug fix updates produced after the final release of the ## distribution. deb http://in.archive.ubuntu.com/ubuntu/ oneiric-updates main restricted ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team. Also, please note that software in universe WILL NOT receive any ## review or updates from the Ubuntu security team. deb http://in.archive.ubuntu.com/ubuntu/ oneiric universe deb http://in.archive.ubuntu.com/ubuntu/ oneiric-updates universe ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team, and may not be under a free licence. Please satisfy yourself as to ## your rights to use the software. Also, please note that software in ## multiverse WILL NOT receive any review or updates from the Ubuntu ## security team. deb http://in.archive.ubuntu.com/ubuntu/ oneiric multiverse deb http://in.archive.ubuntu.com/ubuntu/ oneiric-updates multiverse ## Uncomment the following two lines to add software from the 'backports' ## repository. ## N.B. software from this repository may not have been tested as ## extensively as that contained in the main release, although it includes ## newer versions of some applications which may provide useful features. ## Also, please note that software in backports WILL NOT receive any review ## or updates from the Ubuntu security team. # deb http://in.archive.ubuntu.com/ubuntu/ maverick-backports main restricted universe multiverse # deb-src http://in.archive.ubuntu.com/ubuntu/ maverick-backports main restricted universe multiverse ## Uncomment the following two lines to add software from Canonical's ## 'partner' repository. ## This software is not part of Ubuntu, but is offered by Canonical and the ## respective vendors as a service to Ubuntu users. deb http://archive.canonical.com/ubuntu oneiric partner deb-src http://archive.canonical.com/ubuntu oneiric partner ## This software is not part of Ubuntu, but is offered by third-party ## developers who want to ship their latest software. deb http://extras.ubuntu.com/ubuntu oneiric main deb-src http://extras.ubuntu.com/ubuntu oneiric main deb http://in.archive.ubuntu.com/ubuntu/ oneiric-security main restricted deb http://in.archive.ubuntu.com/ubuntu/ oneiric-security universe deb http://in.archive.ubuntu.com/ubuntu/ oneiric-security multiverse # deb http://archive.canonical.com/ lucid partner Here is the preview of my sources.list file

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• josso newbie setup problems - can't use tomcat's manager page

  - by opensas

  I'm trying to setup josso on an apache tomcat server running on windows. I've installed Apache Tomcat/6.0.26 fro zip file to c:\tomcat then installed josso following the documentation at http://www.josso.org/confluence/display/JOSSO1/Quick+Start started tomcat with c:\tomcat\bin\startup.bat, and noticed the following warnings ADVERTENCIA: [SetPropertiesRule]{Server/Service/Engine/Realm} Setting property ' debug' to '1' did not find a matching property. 21/03/2010 15:55:03 org.apache.tomcat.util.digester.SetPropertiesRule begin ADVERTENCIA: [SetPropertiesRule]{Server/Service/Engine/Host/Valve} Setting prope rty 'appName' to 'josso' did not find a matching property. ... ADVERTENCIA: Unable to find required classes (javax.activation.DataHandler and j avax.mail.internet.MimeMultipart). Attachment support is disabled. ... ADVERTENCIA: Bean with key 'josso:type=SSOAuditManager' has been registered as a n MBean but has no exposed attributes or operations ... but then everything seems to work fine, the problem is I can no longer access http://localhost:8080/manager/html using user tomcat /tomcat, as configured in \conf\tomcat-users.xml (before installing josso it worked) I tried with tomcat/tomcatpwd as defined in \lib\josso-credentials.xml and even added tomcat and the manager role to \lib\josso-users.xml, with no luck... Is anybody having the same problem? how can I access tomcat's manager page? Thanks a lot saludos sas This is my config: C:\tomcat\bincatalina version Using CATALINA_BASE: "C:\tomcat" Using CATALINA_HOME: "C:\tomcat" Using CATALINA_TMPDIR: "C:\tomcat\temp" Using JRE_HOME: "c:\java" Using CLASSPATH: "C:\tomcat\bin\bootstrap.jar" Server version: Apache Tomcat/6.0.26 Server built: March 9 2010 1805 Server number: 6.0.26.0 OS Name: Windows XP OS Version: 5.1 Architecture: x86 JVM Version: 1.5.0_22-b03 JVM Vendor: Sun Microsystems Inc ps: moreover, when shutting down, I get a couple of error like this GRAVE: A web application appears to have started a thread named [JOSSOAssertionM onitor] but has failed to stop it. This is very likely to create a memory leak. 21/03/2010 15:57:06 org.apache.catalina.loader.WebappClassLoader clearReferences Threads and then tomcat's shutdown freezes at 21/03/2010 15:57:07 org.apache.coyote.ajp.AjpAprProtocol destroy INFO: Parando Coyote AJP/1.3 en ajp-8009 ps: sorry for this lengthy question...

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• Windows-mobile app won't run after being closed by Task Manager

  - by pithyless

  I've inherited some windows-mobile code that I've been bringing up-to-date. I've come across a weird bug, and I was hoping that even though a bit vague, maybe it will spark someone's memory: Running the app (which is basically a glorified Forms app with P/Invoke gps code), I switch to the task manager, and close the app via End Task. Seems to exit fine (no errors and disappears from Task Manager). Unfortunately, the app refuses to start a second time until I reboot the phone or reinstall the CAB. What's worse: this bug is reproducible on a HTC Diamond, but works fine (ie. can run again after EndTask) on an HTC HD2. The only thing I can think of is some kind of timing race between a Dispose() and the Task Manager. Any ideas? I'm also thinking of a workaround - I do have a working "Exit Application" routine that correctly cleans up the app; can I catch the EndTask event in the c# code in order to complete a proper cleanup? Maybe I'm just missing the pain point... all ideas welcome :)

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• JPA - Performance with using multiple entity manager

  - by Nguyen Tuan Linh

  My situation is: The code is not mine I have two kinds of database: one is Dad, one is Son. In Dad, I have a table to store JNDI name. I will look up Dad using JNDI, create entity manager, and retrieve this table. From these retrieved JNDI names, I will create multiple entity managers using multiple Son databases. The problem is: Son have thousands of entities. It takes each Son database around 10 minutes to load all entities. If there is 4 Son databases, it will be 40 minutes. My question: Is there any way to load all entities and use them for all entity manager? Please look at the code below For each Son JNDI: Map<String, String> puSonProperties = new HashMap<String, String>(); puSonProperties.put("javax.persistence.jtaDataSource", sonJndi); EntityManagerFactory emf = Persistence.createEntityManagerFactory("PUSon", puSonProperties); PUSon - All of them use the same persistence unit log.info("Verify entity manager for son: {0} - {1}", sonCode, emSon.find(Son_configuration.class, 0) != null ? "ok" : "failed!"); This is the actual code where the loading of all entities begins. 10 mins.

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• Integrating HP Systems Insight Manager into an existing environment

  - by ewwhite

  I'm working with an environment that spans multiple data centers/sites and consists primarily of HP ProLiant servers (G5-G7) running Linux. The mix is 30% RHEL/CentOS, the rest are Gentoo :(. I also have a few dozen virtual machines running back-office and Windows servers on VMWare ESX hosts. I run OpenNMS to pull SNMP data from the various server nodes and networking devices. While OpenNMS works wonderfully for up/down, thresholds and notifications, it's native handling of traps is a little rough and the graphs are not particularly pretty. I use Orca/RRD graphs for performance trending and nice graphs. I'm tasked with inventorying the environment and wanted to come up with a clean way to organize server information. Since my environment is mostly HP, I've been playing with HP Systems Insight Manager as a way to extract server data and to deploy HP health/monitoring packages and firmware. The Gentoo systems eventually have to be converted to CentOS, so getting a quick assessment of what hardware is where would be great. Although I've read through a few hundred pages of HP manuals, I'm having a difficult time understanding how to get HP SIM to do what I want, though. My main problems are: I have about 40 subnets to deal with; 98% connected with private lines to facilities across the globe. I don't want to initiate an HP SIM discovery only to pull back every piece of intermediate networking hardware and equipment from all of the locations. I'd like this to focus on the servers. I have OpenNMS configured to accept traps. I don't want HP SIM to duplicate that effort. It seems like the built-in software deployment tool wants to overwrite the trapsink parameters for the systems it encounters during discovery. I have about 10 administrative username/password combinations in use across this infrastructure. Is there a more efficient way to get HP SIM to do the discovery or break discovery into manageable chunks? In terms of general workflow, do people typically install the HP Management Agents during the initial OS deployment (e.g. kickstart post script) or afterwards from HP SIM? Is HP SIM too thick/fat to be an inventory tool? I can't tell if it's meant to be used standalone or alongside other monitoring products. Since the majority of the systems I'm trying to track are those running Gentoo (in order to plan the move to CentOS), is there any way for HP SIM to extract system model information from them ( like dmidecode)? I have systems here where I may have an SSH key established, but not direct user or login access. Is there a way for me to import an SSH private/public key pair into HP SIM to reach out to the servers that can't accept standard credentials? There are a handful of sites where I have inconsistent access or have a double-NAT situation. I may be able to poke a server, but it may not be able to find its way back to the management system. Is there a workaround for this? The certificate configuration for HP SIM seems complicated. What is the preferred setup for trust between systems? I'd also appreciate any notes or recommendations to using this product. Or if there's a better way to do this, I'd like to know.

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• HP Envy screen brightness .. stuck

  - by Sonic Soul

  once in a while, the screen brightness stops responding to any reason, and stays on full brightness.. for those of you that have HP Envy, you know what this means... battery suicide. the FN+* controls don't work. i also tried going in to power settings and adjusting all modes brightness to low wend of spectrum, after saving, it has no effect.. i suppose i could try rebooting as i always just put my laptop to sleep :/ anyone came across this ?

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• Is UPS necessary to have for PC?

  - by Jitendra vyas

  Can my computer components ( Monitor, Motherboard, RAM, HDD, CPU, SMPS) become damaged due to a sudden power flux. It's only needed to shut down Windows properly. Can I solve both Hardware and Software problems without UPS?

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• HP Envy screen brightness .. stuck

  - by Sonic Soul

  once in a while, the screen brightness stops responding to any reason, and stays on full brightness.. for those of you that have HP Envy, you know what this means... battery suicide. the FN+* controls don't work. i also tried going in to power settings and adjusting all modes brightness to low wend of spectrum, after saving, it has no effect.. i suppose i could try rebooting as i always just put my laptop to sleep :/ anyone came across this ?

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• Is it possible to change the voltage on a single port on an HP ProCurve 2910al POE switch and how?

  - by hjoelr

  I have a couple of HP ProCurve 2910al POE+ switches at my company that we are primarily using to power our VOIP phones that run on 48V DC. However, I have one wireless access point that I need to run off of POE, but it has to be 24V DC. I'm afraid to plug it into the POE ProCurve because I'm not sure if it will zap the device. I'm wondering if there is a way to make sure to change the voltage on a specific port to 24V instead of the (seemingly) default value of 48V. Thanks! Joel

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• Utility for easily disabling/enabling extra hard drives?

  - by SkippyFire

  I just got an Asus G60 laptop, and will be installing an SSD as the primary, and will use the existing HDD as a storage drive. Is there a utility that I can use to turn off/disconnect the storage drive when I'm not using it? Mainly, I want to be able to conserve power when I'm mobile, since the battery life of this laptop is pretty weak. Thanks in advance!

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• "Zinc Whisker" issues?

  - by Dizzle

  Good morning; We've been having intermittent power supplies failures in our data center that have been preliminarily attributed to "zinc whiskers". I'm just starting to read about them (I just Googled the term and started picking stuff), and I'm interested in others experiences with them and any cleanup and recovery experiences. Thanks!

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• Getting more from an electricity monitor

  - by beakersoft

  Hi, I've recently got a free smart power electric energy monitor from my electric provider (npower, in the UK). While it is quite good i would like to pull the information from the monitor onto my home server, so i can get more detailed information and maybe graph it using mrtg or similar. Has anyone every tinkered about with them, how do the monitor and the display talk to each other (bluetooth/wifi) and any other info people might have. cheers Luke

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• what do the various USB charge while sleeping modes mean?

  - by MikeJ

  what do the various USB charge while sleeping modes mean? my new laptop has these sleep while charging modes : mode 4 mode 3 mode 2 mode 1 the list box doesn't tell me what these modes mean or do. I noticed that my iphone is charging really slowly on mode 4. What is it going to do to my power consumption if I change it to something like 1 or 2 ?

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• Windows 7 Aero Theme when on Battery

  - by Dan Revell

  Windows 7 has the full and basic aero themes that can be changed inside personalization. Windows used to automatically disable Windows Aero (transparency) when I unplug my laptop from the mains. I reset the theme and now it doesn't do this anymore. I can't seem to find how to enable this again. I've checked the advanced power options and control panel but turning back on this feature is eluding me. Any suggestions would be much appreciated.

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• Setting charging limit on MBP?

  - by Giannis

  Is it possible to tweak settings so that the battery will only charge up to 90% -95% and then use power adapter to run ? A friend told me he was able to set such limits on his non-mac PC so I was hoping there would be a way to do it. From reading I have done online it appears this is better than having a 100% battery most of the time. I have an MBP 13" 2012 running latest version of OSX ML(10.8.2).

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• Computer powers on automatically and beeps, but no display

  - by SomeOne

  I have a problem with my computer turning on automatically. The power switch lights up and the fan keeps running. After a while, a single beep will be heard every minute or so but nothing will display on the monitor. In some cases it will completely turn on and suddenly shut off. What is the problem and how can I fix it? This is a desktop computer running Windows XP.

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• Disable "Turn off hard disk after" in windows 7

  - by Andreas Bonini

  How can I disable this feature? In the power options apparently I can only choose the minutes and I don't see a "Off" option. If I set it to 0 minutes, it sets itself to 1. For now I set it to 20000000 minutes, but a real solution would be nice.

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• Find time to charge in windows 7

  - by Midhat

  Is there a utility for windows 7 which will give me the time remaining until my laptop battery is fully charged. GNOME power manager has this functionality, So i was wondering if there is a counterpart for windows 7

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• How much current can I draw from the data pins of a parallel port?

  - by marcusw

  I want to power something using the parallel port of on an old Dell Dimension 8200. How much current can be drawn from each of the 8 the data pins? I have pulled a maximum of 78mA/pin so far, but what is the upper limit? Can I short pins together to raise this limit?

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• Turn off backlit keyboard when computer goes to sleep

  - by thegreyspot

  I just bought a backlit keyboard from a not so known brand. It doesnt have any good drivers. My issue is when I put my computer to sleep or even turn it off, all the leds underneath the keys stay on. Is there some power management option that lets you turn this off? Thanks!

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• Data Center Design and Preferences

  - by Warner

  When either selecting a data center as a co-location facility or designing a new one from scratch, what would your ideal specification be? Fundamentally, diversified power sources, multiple ISPs, redundant generators, UPS, cooling, and physical security are all desireable. What are the additional key requirements that someone might not consider on the first pass? What are the functional details someone might not consider during the initial high level design?

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• New harddrives failing within weeks.

  - by Jason Kealey

  I've experienced 8 hard disk failures in 3 months and have tried many things to solve the issue permanently but I have failed. I would like to know if you have any advice for me. System was running Win XP on an Asus P5W-DH Deluxe. I have setup a RAID-1 array. I started out with 2 x 500 GB 7200RPM Western Digital drives. One died. I took it out to RMA it. On the same day, the router was fried. Assumed a power surge occurred; connected an older UPS to protect the system. Once I got my hands on an identical disk, I installed it. The RAID array was rebuilt. A few days later, the other one died. Assumed the rebuild caused it to fail. Took it out for RMA. Before the other one arrived, the remaining one died. I then discovered I could re-enable them using the Intel Matrix Storage Manager. I re-enabled both and the system seemed fine for a week, until both died again. I got two new 1.5 TB 7200RPM Seagate drives and re-installed Windows 7. Also replaced the UPS and power supply. They both died again. The voltage on the plug is stable between 120 and 122V as per the UPS. None of the other devices have had any problems (monitors, etc.). At this point, I see two options: a) electrical issue in the house that was, for some reason, not blocked by the UPS. b) something else inside the system causing surges? motherboard? onboard raid controller? Failures happen fairly quickly, between 2 and 14 days after I fix the previous issue. I just gotten a new computer (Core i7) to replace it. If it is stable, I can determine that b) was the problem. If it fries its hard drive again, I can determine that it is an electrical issue in the house. Do you have any other thoughts? Any tools I can run on the drives that failed to get more information about the original SMART event history?

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• PC has a mind of it's own.

  - by ULTRA_POROV

  When I put my PC into standby, sometimes it randomly awakes, scaring me and waking me up. What could be causing this. No it is not my mouse moving, it can only be powered back on by the power button. It's really strange.

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