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• MacBook Pro shutting down instantly after attempt to update firmware

  - by Luke Dennis

  I tried to apply a firmware update on a MacBook Pro 2.4ghz (2008), and after rebooting, the fans kicked up to maximum, the screen lit up, and then it immediately died. Now when I try to boot, it does the same thing: the fans crank to max, the screen lights up, and then it dies after about 2 seconds. Resetting the power manager does nothing. It doesn't stay up long enough to choose another boot drive or boot from CD. I have no idea what else to try. Help?

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• when i set my FSB to 400mhz in bios it actually stays at 333mhz

  - by Mantis

  My front side bus (FSB) is rated for a maximum of 400mhz (Rated FSB 1600MHz). In fact, it used to run at 400mhz until recently. I'm trying to overclock my E8400 to 3.6GHz. I have done that in the past by having the FSB at 400 with a multiplier of 9. Now, when I set the FSB to 400, the system boots as normal, but the FSB stubbornly is stuck at 333 (Rated FSB 1333). The CMOS is set to 400, I've triple-checked it. It's just the FSB isn't listening. Is my FSB damaged? Gigabyte mobo

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• Restoring using SyncBack without profiles

  - by Thomas Matthews

  I backed up my internal hard drive (C:) using SyncBack onto an external (USB) hard drive with maximum compression. I then performed a clean install of Windows Vista onto the computer. I forgot to copy the SyncBack logs before the clean install. And now when ever I try to restore a directory, the RAR/ZIP files are copied to the system hard drive instead of extracting their contents to the hard drive. Also, SyncBack is not traversing the folders during the Restore process. How can I tell SyncBack to expand the compressed files? I am running the freeware version of SyncBack. I have to create new log files (unless SyncBack put them somewhere on the external drive). My alternative is to write a program that traverses the folders on the external drive and extracts files from the RAR/ZIP files. I am using Windows Vista, Service Pack 2, and the data size prior to backup was about 200 GB. (The backup process took over 72 hours due to "hiccups").

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• Does the advanced format tool bundled by manufacturers actually do anything which mkntfs doesn't?

  - by neurolysis

  I recently bought a new drive (specifically, a 2TB Samsung Spinpoint) that says on the label that it supports advanced format, and that I should download the tool from their site. Unless I'm missing something, mkntfs has always had its maximum sector size at 4096b: -s, --sector-size BYTES Specify the size of sectors in bytes. Valid sector size values are 256, 512, 1024, 2048 and 4096 bytes per sector. If omitted, mkntfs attempts to determine the sector-size automatically and if that fails a default of 512 bytes per sector is used. Will this tool on Samsung's site do anything other than format the drive in the same way doing mkntfs -s 4K /dev/sdb1 would do? To be specific, I'm intending to use this drive on a machine that will primarily run Windows XP, but I'd rather boot into Linux/BSD and format the disk manually than have bloated software. I do want to have the new AF style sectors though -- that's essential. So if I did the command above, would it have exactly the same effect as using the advanced format tool?

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• Should I reinstall my production server from 32 bit to 64 bit if it has 16GB of RAM?

  - by Alexandru Trandafir Catalin

  I have a production server with 16GB of RAM that came with a 32bit CentOs installation. The website hosted on this server is increasing its traffic every day and I am having some MySQL trouble so I tried to check the MySQL configuration with mysqltuner.pl and gave me the following messages: [!!] Switch to 64-bit OS - MySQL cannot currently use all of your RAM *** MySQL's maximum memory usage is dangerously high *** *** Add RAM before increasing MySQL buffer variables *** So my question is: can I survive with the 32 bit? Or I will have to install the 64 bit OS? Thanks.

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• Why can't windows see mmcblk0p3? [closed]

  - by jacknad

  The partition is created on the embedded linux target like this # n - new # p - partition # 3 - partition 3 # 66 - starting cylinder # <blank> - maximum size for the ending cylinder # t - set file system type # 3 - partition 3 # c - set to windows vfat # w - write partition table and exit echo -e "n\np\n3\n66\n\nt\n3\nc\nw" | fdisk /dev/mmcblk0 The file system is then formatted on the embedded linux target as MS-DOS like this # -n volume-name # -F FAT-size mkfs.vfat -n DB -F 32 /dev/mmcblk0p3 A linux host can mount and access files in mmcblk0p3 without issue. Why can't windows? Edit: Although the default number of FATS is 2 I tried adding -f 2 [number-of-FATs] since this is actually being done by busybox on an embedded platform but this didn't help. I understand the Linux MS-DOS file system does not support more than 2 FATs but there are only 2 on this target (the boot is also FAT which is visible), along with and EXT3 (on p2) for the root file system.

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• How do I use long names to refer to Group Managed Service Accounts (gMSA)?

  - by Jason Stangroome

  Commonly domain user accounts are used as service accounts. With domain user accounts, the username can easily be as long as 64 characters as long as the User Principal Name (UPN) is used to refer to the account, eg [email protected]. If you still use the legacy pre-Windows 2000 names (SAM) you have to truncate it to ~20 characters, eg mydomain\truncname. When using the New-ADServiceAccount PowerShell cmdlet to create a new Group Managed Service Account (gMSA) and a name longer than 15 characters is specified, an error is returned. To specify a longer name, the SAM name must be specified separately, eg: New-ADServiceAccount -Name longname -SamAccountName truncname ... To configure a service to run as the new gMSA, I can use the legacy username format mydomain\truncname$ but using usernames with a maximum of 15 characters in 2013 is a smell. How do I refer to a gMSA using the UPN-style format instead? I tried the longname$@domainfqdn approach but that didn't work. It also seems that the gMSA object in AD doesn't have a userPrincipalName attribute value specified.

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• Cheapest server to run Windows 2008 R2?

  - by chopps

  Hey Everyone, I want to build a really cheap server to use for testing etc but don't want to spend alot of dough. Any recomendations on what kind of home pc/server would work for these requirements? Any place to get refurbs at a good price? Component Requirement Processor Minimum: 1.4 GHz (x64 processor) Note: An Intel Itanium 2 processor is required for Windows Server 2008 for Itanium-Based Systems Memory Minimum: 512 MB RAM Maximum: 8 GB (Foundation) or 32 GB (Standard) or 2 TB (Enterprise, Datacenter, and Itanium-Based Systems) Disk Space Requirements Minimum: 32 GB or greater Foundation: 10 GB or greater Note: Computers with more than 16 GB of RAM will require more disk space for paging, hibernation, and dump files Display Super VGA (800 × 600) or higher resolution monitor Other DVD Drive, Keyboard and Microsoft Mouse (or compatible pointing device), Internet access (fees may apply)

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• SPF include: too many IP addresses

  - by sprezzatura

  I've hit a snag with SPF. The SPF record for my domain will contain four or five entries, plus it will contain: include:sgizmo.com The SPF record for sgizmo.com contains eleven entries! This, plus mine, is way over the maximum ten allowed by the RFC (and probably by most servers). I realize that there has to be a limit in order to prevent DoS attacks. However, in the real world, it is probably not unreasonable for large companies to have many server addresses. Furthermore, must I know monitor my 'include:' counterparts for changes and additions? Must I check weekly, daily, to insure that some combination of changes doesn't suddenly put me over the top? It doesn't seem to me that SPF is suitable for prime time. Is there another way to do this?

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• In what way does non-"full n-key rollover" hinder fast typists?

  - by Michael Kjörling

  Wikipedia claims (although the latter claim does not cite a source) that: High-end keyboards that provide full n-key rollover typically do so via a PS/2 interface as the USB mode most often used by operating systems has a maximum of only six keys plus modifiers that can be pressed at the same time.[4] This hinders fast typists, ... In what way would the system being able to recognize only six non-modifier keys at once hinder a fast typist? I consider myself a relatively fast typist and I usually press one key, plus modifiers, at once; I can't imagine any real-life situation in which the system only recognizing six non-modifier keys being pressed at once has been a limiting factor in my keyboard usage. (Multi-stroke keyboard shortcuts as used by high-end software like Visual Studio, Emacs and the like are a different matter.) Note that I am not really interested in answers centered around multiplayer computer games; I'm looking for answers that give reasons that would be relevant to typists, somehow supporting the statement made on Wikipedia.

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• What PSU is usually used in mini-ITX cases/chassis?

  - by Subaru Tashiro

  The mini-ITX computer will be a general use computer. Not a dedicated HTPC or Home server. In general use mini-ITX cases, what PSU form factor is usually used? I understand that some case manufacturers provide custom built PSU to fit their case but I prefer to get the ones that use a PSU that follows standard form factors in case a replacement is needed. For example, what PSU fits into general purpose cases by Lian Li? Am I to assume that smaller PSU form factors also affect the possible maximum output?

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• Installed over 4G RAM on 32-bit OS? [closed]

  - by kai

  Possible Duplicate: 32-bit Windows Server address > 4GB RAM - How? I know that for 32-bit OS, the addressable memory space for each process is "4G" (maybe just 3G in user space...). If I have a 8G RAM, is it correct that all of the processes can still utilize (shared) these 8G memory but each of them are limited to a maximum 4G? Or the whole system only can see and utilize 4G out of 8G and thus having 8G RAM on a 32-bit OS is the same as having 4G RAM on it?

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• Is it Possible to Increase Display Resolution for OS X Maverick

  - by Michael

  The new OS X Maverick operating system has reduced maximum display resolution from 1920 x 1200 in Mountain Lion to 1680 x 1050, which is a SIZABLE reduction. The difference is obvious when viewing videos or photos. In addition, the colors are less vibrant. Does anyone know a way to change the display resolution for Maverick, thus restoring Mountain Lion resolution (1920 x 1200)...along with color vibrancy. By the way, I am using a 2012 Macbook Pro, with Matte display, which I think makes matters worse. At 1920 x 1200 my Macbook Pro was excellent...but at 1680 x 1050, it is very pedestrian.

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• AMD FX 8350 potentially overheating

  - by rhughes

  I am worried that my CPU is overheating when running at maximum capacity. I have not overclocked the machine. The machine often powers down after a couple of minutes of max CPU usage. I get the following events in the Event Log after the crash: Log Name: System Source: Microsoft-Windows-Kernel-Power Date: 11/10/2013 12:05:40 Event ID: 41 Task Category: (63) Level: Critical Keywords: (2) User: SYSTEM Computer: home-pc Description: The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly. What can I do to confirm this or further narrow down this issue? Due to the sudden nature of the crash, no MEMORY.DMP is created I believe. I am happy to post any extra information that is needed.

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• Disable of discrete/native graphics on MacBook Retina when using apps like VMware, VLC, etc

  - by badkitteh

  I got a MacBook Pro Retina a few months ago and I'm really happy with it. However, since I do a lot of work in different environments/OSes, I make heavy use of VMware to have them with me when I'm on the road. The MBPr has a great battery life - as long as integrated graphics are being used. Unfortunately as soon as I launch VMware, the MacBook switches to discrete graphics and battery life is effectively halved. I noticed that after installing gfxCardStatus, and now I'm wondering if there is a way to force the integrated graphics being used all of the time, so I can enjoy maximum battery life. Thanks.

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• How can I set up OpenVPN to accept more than 60 connections?

  - by Robin

  Greetings! We're using OpenVPN and today hit an unexpected connection limit of 60 - even though max-clients is set to the source code default 1024. Server log: Tue Dec 21 13:49:41 2010 MULTI: new incoming connection would exceed maximum number of clients (60) We're slowly adding new clients to the VPN and expect to hit 200 some time next year, if we can get it working. We're running the server on a Win2003 R2. OpenVPN 2.0.9 Server config as follows: local 192.168.10.211 port 1195 proto tcp dev tun dev-node OpenVPN_Vision ca vision_ca.crt cert vision_server.crt key vision_server.key # This file should be kept secret dh vision_dh1024.pem server 192.168.211.0 255.255.255.0 ifconfig-pool-persist vision_ipp.txt ;server-bridge 10.8.0.4 255.255.255.0 10.8.0.50 10.8.0.100 ;client-to-client keepalive 10 120 comp-lzo ;max-clients 100 # Default in source code is 1024 persist-key persist-tun status openvpn-status-vision.log log vision.log verb 3 I would greatly appreciate any help or input on this one. Thanks! Best regards, Robin

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• Which JMX statistics to watch out for in Catalina/Tomcat?

  - by geoaxis

  I have configured OpenNMS to collect all kinds of numeric data coming out of tomcat7 jmx. There are a lot of things. I am interested in monitoring this tomcat instance so that I can avoid down time and lockups. What metrics should I be watching out for? I am already monitoring things like CPU, Memory, Network via SNMP. With this JMX connection the things that I find interesting are Catalina:type=GlobalRequestProcessor,name="ajp-bio-/a.b.c.d-XXXX" RequestsCount so far. Catalina:type=Manager,context=/myApp,host=localhost Active sessions and its maximum so far

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• How do MaxSpareServers work in Apache?

  - by John Hunt

  I've scoured the web but I can't find out what MaxSpareServers are in Apache MPM prefork.. The MaxSpareServers directive sets the desired maximum number of idle child server processes. An idle process is one which is not handling a request. If there are more than MaxSpareServers idle, then the parent process will kill off the excess processes. Great, but what causes a spareserver to be created? More importantly, when does a spare server go away? I understand that minspareservers are created gradually after the server is started.. How do maxspareservers relate to maxclients? Basically I'm at a bit of a loss on how best to configure Apache.. there's a lot of documentation out there but it isn't that clear. Thanks, John.

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• Is FreeBSD better than CentOS for firing 40k concurrent connections (for Jmeter)?

  - by blacklotus

  Hi, I am trying to run Jmeter to simulate 40k concurrent users and stress test a particular system. Putting aside the possibility that Jmeter may not be able to push such a high number (although I have read that it is at least possible to handle 10k concurrent threads on a very powerful machine), is FreeBSD a better OS as compare to CentOS to be used for my Jmeter machine? Reason for asking this is that, I have found articles on FreeBSD for tuning and optimizing for maximum outbound connections, but seem to have little luck with CentOS. Personally however, I am more familiar with CentOS and would like to stick with it if possible. Any input is greatly appreciated!

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• Memeory Leak in Windows Page file when calling a shell command

  - by Arno

  I have an issue on our Windows 2003 x64 Build Server when invoking shell commands from a script. Each call causes a "memory leak" in the page file so it grows quite rapidly until it reaches the maximum and the machine stops working. I can reproduce the problem very nicely by running a perl script like for ($count=1; $count<5000; $count++) { system "echo huhu"; } It is independent of he scripting language as the same happens with lua: for i=1,5000 do os.execute("echo huhu") end I found somebody describing the same issue with php at http://www.issociate.de/board/post/454835/Memory_leak_occurs_when_exec%28%29_function_is_used_on_Windows_platform.html His solution: Firewall/Virus Scanner does not apply, neither are running on the machine. We can also reproduce the issue on other Developer Machines running XP 64, but not on XP 32 Bit. The guilty guy for the allocation is C:\WINDOWS\System32\svchost.exe -k netsvcs which runs all the basic Windows services. Does anybody know the issue and how to resolve it ?

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• SQL 2008 Memory Usage

  - by Danilo Brambilla

  I have a SQL Server 2008 (ver 10.0.1600) running on a Windows Server 2008 R2 Enterprise server with 8 GB of physical ram. If I open Task Manager I can see on 'Physical Memory' section of 'Performance' tab that only 340 MB are Available of 8191 Total, but I can't see any process using such amount of memory. Please note SQL Server is memory limited to 6GB (Maximum Server Memory = 6000). If I open Sysinternals Process Explorer, I can see sqlsrvr.exe process has: Private Bytes: 227.000 K Working Set: 140.000 K Virtual Size: 8.762.000 K What does this means? Is there any way to free up this memory for other process? Why Virtual Size figure as allocated memory? I thought that Virtual Size was 'reserved memory' only.

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• SQL 2008 Memory Usage

  - by Danilo Brambilla

  I have a SQL Server 2008 (ver 10.0.1600) running on a Windows Server 2008 R2 Enterprise server with 8 GB of physical ram. If I open Task Manager I can see on 'Physical Memory' section of 'Performance' tab that only 340 MB are Available of 8191 Total, but I can't see any process using such amount of memory. Please note SQL Server is memory limited to 6GB (Maximum Server Memory = 6000). If I open Sysinternals Process Explorer, I can see sqlsrvr.exe process has: Private Bytes: 227.000 K Working Set: 140.000 K Virtual Size: 8.762.000 K What does this means? Is there any way to free up this memory for other process? Why Virtual Size figure as allocated memory? I thought that Virtual Size was 'reserved memory' only.

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• Is FreeBSD more suitable than CentOS for firing 40k concurrent connections (for Jmeter)?

  - by blacklotus

  Hi, I am trying to run Jmeter to simulate 40k concurrent users and stress test a particular system. Putting aside the possibility that Jmeter may not be able to push such a high number (although I have read that it is at least possible to handle 10k concurrent threads on a very powerful machine), is FreeBSD a more suitable OS as compare to CentOS to be used for my Jmeter machine for handling 40k (or as high as possible) of concurrent outbound connections? Reason for asking this is that, I have found articles on FreeBSD for tuning and optimizing for maximum outbound connections, but seem to have little luck with CentOS. It makes me wonder if for some specific reasons, people don't use CentOS for such high number of outbound connections. Personally however, I am more familiar with CentOS and would like to stick with it if possible. Any input is greatly appreciated!

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• Windows 7: How to display the total size of Recycle Bin

  - by Mehper C. Palavuzlar

  On Windows XP, the total size of Recycle Bin could be seen easily, but I can't see it on Windows 7. Why did Microsoft hide/remove this feature? Am I missing something? REMARK 1: I don't need to see the maximum size that Recyle Bin can contain. REMARK 2: Once you have several files selected in the Recycle Bin, you get a "See more details" link in the status bar, but clicking on that does not display the total file size. Microsoft has apparently changed this.

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• How can I copy files from a DVD skipping corrupt files?

  - by ujjain

  I have so far tried the following software solutions without success. Windows Explorer Copy (default) TeraCopy Roadkil's Unstoppable Copier Unstoppable Copier stops copying as a whole, it keeps continuing the same file after 20 minutes, despite any settings. I have spent much time Googling, but the one program ("Unstoppable Copier") that people recommended, did not to the trick as it keeps choking on the same file despite a setting of "Fasteset Data Recovery", "Maximum Retries 0" and "Undamaged Files First". The back side of the DVD has some scratches. What options do I have? I have access to both Ubuntu and Windows 7.

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