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  • Dual mode 802.11n PCI adapters

    - by Mike Thompson
    I have recently bought a DLink DIR-825 router. It is a dual mode (2.4GZ & 5GHZ) 802.11n wireless access point/router. What is a good PCI adapter to pair with it? DLink appear to only make one dual mode adapter, which is the DWA-160 USB adapter. They don't seem to have a PCI adapter in their range, which seems very strange. Do any of the other network manufacturers make a good dual mode adapter?

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  • Cisco 2811 router ignored input errors

    - by elbekay
    I've got a Cisco 2811 (AdvIPServices 12.4(25e)) that is showing input errors on both its interfaces, all the errors are of the ignored type. The counter for ignore errors is not increasing continuously, which made me think it would be happening in line with traffic bursts, but there really isn't a large amount of traffic running through it at any time. Both the router interfaces are connected to a 4900 (IPBase 12.2(54)) series switch. The only things I can see are: There is a slight mismatch in duplex/speed negotiation settings, one side is set to auto/auto and one full/auto, however they have negotiated fine. There have been a few fallbacks on the interface buffers, and some trims in the public buffers. Any suggestions for things to look at? I will be correcting the duplex neg settings, and might try a buffer tune, but I don't think it will help.

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  • PXE boot very slow when PXE server is virtualbox

    - by sqrtsben
    As I read in questions here and on the Internet, PXE and Virtualbox don't seem to like each other too much. My problem is the following: I have a virtualized machine which hosts the DHCP and PXE server for 10 native clients. They are rebooted roughly every 10 mins and on each reboot, they need to boot a small linux (the initrd is ~4MB). Before, I had a native machine running and booting via PXE was very fast. Now, looking at the output of nload, I only get 500kbit/s whenever one machine is booting. The machines are connected via a GBit switch, so that can't be it. Also, when testing the connection speed to the outside, I have the full bandwidth available. Is VBox just unable to deal with large amounts of UDP packets? Can anyone point me in the right direction here?

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  • Looking for Driver Diagnostic and Repair Software

    - by risingTide
    Greetings, I am currently plagued with BSODS on startup (both normal and safe mode) for my XP Pro. After much troubleshooting I have determined it is a driver problem. However, because I cannot even boot I do not know how to fix it. I am looking for some specific driver diagnostic and repair software that I can use from another computer to access and fix the driver problem on the problematic XP drive. (I can access the problematic drive via USB from another computer.) I will offer more details about my specific situation if it is helpful or necessary. Thank you for your time!

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  • Installation stops with cmd.exe window on Laptop

    - by Saariko
    I am installing W7 Ent on an LG R580. I am working with a valid ISO (installs perfect on other systems). During the installation, before the installation window, the process hangs, and I get a black, cmd.exe screen with the following: Select Administrator: X:\windows\system32\cmd.exe Microsoft Windows [Version 6.1.7601] with a prompt for: X:\windows\system32 My keyboard at that time only prints capital letters with '^' before each. Only thing that I am able to do is reboot. In the bios, I tried to disable USB Legacy ( thinking the problem is with my DVD ) - did not help.

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  • Could we build a mega-processor out of superconductors?

    - by Carson Myers
    A superconductor, once cooled below a critical temperature, loses all of its electrical resistance and therefore becomes 100% efficient. This means that when a current flows through a superconductor, none of the energy is lost to heat or light. Theoretically, could we build a processor out of superconductive materials, that could effectively run at, oh I don't know, say, 300ghz? or 5,000ghz? Since a superconductive circuit is 100% efficient, this means that once supplied with electricity, the source of power could be completely removed from the circuit and the current would continue to flow forever. So if we made all the components inside a computer out of superconductive materials, could we get away with only supplying power to the peripherals and save a-whole-lot on energy, while dramatically increasing computing speed? Might this be one of the next big breakthroughs in computing? What do you think?

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  • Windows 2008 terminal server - How to restrict access to DVD/floppy?

    - by test1839
    I has a very simple task. I need to block access to removable media (CD, DVD, floppy, USB drives etc.) on a Windows 2008 R2 Terminal Server for users and allow it for admins. I tried to enable the following policy in GPO: User Configuration/Administrative Templates/System/Removable Storage Access All Removable Storage classes: Deny all access = Enabled But it did not work. I tried different physical and virtual 2008 servers with the same result. It works on Windows 7 but not on Windows 2008. Has anyone had success with this parameter on Windows 2008? Thank you

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  • Semi-random clicking sound from Macbook Pro

    - by Justin Love
    There is an occasional click sound coming from my Macbook Pro (17", 2.2 Ghz Core 2 Duo) I upgraded to Snow Leopard recently, but the computer was also in for service about week before that, so I can't be certain the OS upgrade is related. The sound has no set interval and frequency varies from rare to every few seconds. I can alleviate the sound by turning up the fan speed with smcFanControl. Turning the right fan up about half way seems to be sufficient. Unfortunately, turning up the left fan also causes the right to turn on, because the sound seems to be slightly more to the left. The cause seems to be either a fan or heat-related.

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  • My acer aspire laptop suddenly stopped working, just a blank screen

    - by mazda
    My acer aspire laptop suddenly stopped working while it was connected to my nokia mobile modem through usb. It stopped with power swich staying on and no response to clicking off, no irregular sound, nothing but just a blank screen. I disconnected the power and battery quickly but power switch did not respond at all and even the power indicator didn't turn on again. the display was also gone after disconecting the power and removing battery. It has no response or any sign of power while both battery and power supply are working. What do you think? A completely dead mainboard? Does the MB has any safty board or fuse that could be replaced? Any suggestion will be appreciated, Thank you.

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  • Routing internet through ethernet to a computer without a Wireless adapter

    - by Decency
    I'm setting up a small home network. I have a laptop which connects to internet wirelessly- that works fine. I have a desktop connected to this laptop by an ethernet cable which I'd like to access the internet with. In the past, I have used a different laptop to do this and had no problems doing so. Both computers run Windows 7. I have tried setting up a homegroup and disabling Windows firewall, as well as restarting both computers. I can share data but my internet connection can not be accessed through the desktop. (I understand USB network adapters are cheap, I have one on the way but that doesn't solve this issue.) Any help or live chat support if you'd prefer would be appreciated. Thanks!

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  • Set-and-forget Windows backup software with NAS-support?

    - by Evert
    I am looking for set-and-forget backup software for Windows (Vista & 7, and if possible XP/2003). The idea is that it runs in the background on the clients, and does its thing towards a network-share. In case the HDD of one of these clients spontaneously combusts, all I want to have to do is: replace the drive, insert a USB-stick, boot from it, and restore the machine. It should support drives which use [ICH]-RAID. What are my options here? It looks like WHS meets all the requirements, but I am curious about my other options here.

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  • How can I change the amount of video memory with a Mobile Intel 4 Series Express Chipset?

    - by user45924
    I have the chipset in the title. The Intel control panel says the following: Intel® Graphics Media Accelerator Driver for Mobile Report Report Date: 8/11/2010 Report Time[hr:mm:ss]: 20:2:54 Driver Version: 8.15.10.2182 Operating System: Windows 7 (6.1.7600) Default Language: English (Canada) DirectX* Version: 10.0 Physical Memory: 3963 MB Minimum Graphics Memory: 128 MB Maximum Graphics Memory: 1759 MB Graphics Memory in Use: 17 MB Processor: Intel64 Family 6 Model 23 Stepping 10 Processor Speed: 1995 MHz Vendor ID: 8086 Device ID: 2A42 Device Revision: 07 Even while playing games, the Graphics Memory in Use only ever goes up to 26 MB. I've looked in the BIOS; there's nothing there. Is there any way I can force it to go higher? Thanks :)

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  • Two network cards in one Windows 7 PC

    - by Martin
    Hi, I've upgraded from Vista to Windows 7. On Vista I used to run one network card (Intel 82566DC -2 Gigabit) for my internet which was connected to a Dovado USB mobile broadband router connected to a 3G modem. The IP setup on the card is set on DHCP. The second card (3com Ethernet link) was used to connect to our town's local WUG (wireless user group) and all worked fine. Now the problem I have with Windows 7 is that when I connect to the internet with the (Intel) first card, the internet work fine but as soon as I connect the second card to the wug my internet drops. If I then disconnect the first card (internet one) and try to connect to the wug it works. It seems that the two cards are fighting each other. Is there maybe something I can do to fix the problem? As you probably can gather from this post is that I am not an expert on PC's so please if you do answer do I in simple terms. :) Thanks, Martin

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  • Disable Memory Modules In BIOS for Testing Purposes (Optimize Nehalem/Gulftown Memory Performance)

    - by Bob
    I recently acquired an HP Z800 with two Intel Xeon X5650 (Gulftown) 6 core processors. The person that configured the system chose 16GB (8 x 2GB DDR3-1333). I'm assuming this person was unaware these processors have 3 memory channels and to optimize memory performance one should choose memory in multiples of three. Based on this information, I have a question: By entering the BIOS, can I disable the bank on each processor that has the single memory module? If so, will this have any adverse effects or behave differently than physically removing the modules? I ask due to the fact that I prefer to store the extra memory in the system if it truly behaves as if the memory is not even there. Also, I see this as an opportunity to test 12GB vs. 16GB to see if there is a noticeable difference. Note: According to http://www.delltechcenter.com/page/04-08-2009+-+Nehalem+and+Memory+Configurations?t=anon, the current configuration reduces the overall data transfer speed to 1066 and in addition, the memory bandwidth goes down by about 23%.

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  • psloggedon timeout question

    - by user60707
    I have a list of machine names from my network that I have put in a batchfile to run through the list and show me who is logged onto each. psloggedon \machineA psloggedon \machineB psloggedon \machineC psloggedon \machineD psloggedon \machineE psloggedon \machineF Psloggedon works fine, however when it hits a machine that isnt actually on the network, it hangs for a good 30 - 60 seconds before moving onto the next machine...I was just wondering if there was any way to speed this up so that if it hits a machine that isnt on the network, it moves onto the next machine in the list much quicker. I have read in other places that this could be possible by adding a ping -n loop into the command but im not sure how to get that to work? any ideas guys? Many thanks in advance. Jimmy

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  • Best alternatives to recover lost directories in FAT32 external hard drive?

    - by Sergio
    Hi: I have an 320 GB ADATA CH91 external hard drive. I guess it has some problems with the connector of the USB jack. The point is that in certain occasions it fails in write operations generating data losses. Right now I lost a directory with several GB's of very useful information. Since then I have not attempted to write to the disk any more. What tool would you recommend to recover the lost data? The disk is FAT32 formatted (only one partition) and I use both Linux and Windows. What filesystem format would you recommend to avoid future data losses? I currently only use this external hard drive in Linux so there are several available choices (FAT, NTFS, ext3, ext4, reiser, etc.). Regards, Sergio

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  • Getting triple-tap for Gyration Media Center remote working in Windows shell

    - by Lunatik
    I have this Gyration remote which, out of the box, does not support triple-tap for text entry outside of Media Center; only numbers can be entered in the Windows shell. Gyration have a patch that supposedly allows this, but it hasn't worked for me. I'm not alone in this regard it seems though. I've seem some discussion on removing and reinstalling USB devices to get this working, but nothing I'd really trust not to screw something else up. Does anyone have any tips for getting this functionality working properly?

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  • Enable automatic driver install in Windows XP

    - by Peter
    When Windows detects new hardware (be it graphic card or USB Peripheral) it automatically installs driver and if it can't find a driver it shows "Found New hardware wizard" that allows you to manually select a driver. My problem is that this "Found New hardware wizard" shows up every time when I plug a new device and I have to click Next Next Next.. until it finishes installation. It's just like in Windows 98 ;) I want to fix it to the way it's supposed to be. It's got nothing to do with "Windows Update" and "Driver Signing" settings in "System properties - Hardware" tab, those are on default settings. Here is the same problem I have, but those replies ale completely useless

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  • Which PHP accelerator to use with prefork mpm (CentOS and RedHat default httpd settings)

    - by FractalizeR
    Hello. As you know, even if it is possible to start httpd in worker mode under CentOS/RedHat, php in default rpm repo is not thread-safe. And the default configuration for stability is mpm_prefork. So, two questions: Is there PHP accelerator capable of working in mpm_prefork mode (using shm or whatever)? If there is none, what can be done to improve PHP speed on CentOS/RedHat systems (I want to use rpms, preferably from default CentOS repo; building custom PHP from source code is not a good option for me)

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  • Folder redirection save times are awful slow

    - by wbmeu
    I recently set up folder redirection for Documents on Server 2008, but it's painfully slow at the moment. My users are all using Visual Studio 2010, and a save takes 20-30 seconds (whereas it used to take 2 seconds locally). I understand this is because they are being saved to the server, and that takes time (though I did think it would be faster over a gigabit link, with servers on the same network). I enabled offline files on the share, set the option to All files or folders, and enabled Optimize for performance. I thought that this would pull all the files down locally (which I think it did), allow local editing of said files, synchronizing them quietly in the background from time to time (which it does not do - saves right to the share). Is there any way I can speed this process up a bit? Any other tweaks I can do?

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  • Using an old PC case and power supply as a HDD Enclosure?

    - by mexiq
    I have 5 HDD and my computer is not handling the situation very well. hehe There are some towers that I can buy to put 4 of my drives out, but I'm thinking that I could use the power source of a failed computer I have and use it to power the 4 (or at least 3) of the drives. The data cables (SATA) will remain connected to the working computer (so no USB solution). The problem is that the power source will not work unless it is connected to the failing computer motherboard. Is there any way I could use the power source without plunging it to the old motherboard? Any "HOW-TO" links may be useful as well.

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  • mplayer dumpstream sometimes fails

    - by User1
    I'm trying to rip the video at http://videolectures.net/ecml07%5Fgetoor%5Fisr/, so I can play it at a faster speed. I paste http://193.2.4.216/2007/pascal/ecml07%5Fwarsaw/getoor%5Flise/ecml07%5Fgetoor%5Fisr%5F01.wmv into a firefox browser in Windows and MediaPlayer plays the thing. However if I try mplayer -dumpstream, it gets stuck into an infinite loop trying to play the file. If I use wget to download the link, I get a small text file which basically points to the same URL. How can I get mplayer to download this stream?

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  • "No bootable device - insert boot disk" after restart on Ubuntu 10.04 b1 update

    - by anjanesh
    I was making an update on my Ubuntu 10.04 beta1 64-bit PC when, after reboot I get PXE-E61: Mediaa test failure, check cable PXE-M0F: Exiting Intel Boot Agent. No bootable device - insert boot disk and press any key How did my boot record disappear ? BIOS Boot Boot Menu Type : Normal Boot Device Priority : <CD/DVD-ROM Drive> <Hard Disk Drive> <Floppy Drive> <Ethernet> Hard Driver Order : No Hard Disk Drive CD/DVD ROM Drive Order : <PT-TSSTcorp CDDV> Removable Drive Order : No Removable Drive Boot to Optical Devices : <Enable> Boot to Removable Devices : <Enable> Boot to Network : <Enable> USB Boot : <Enable>

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  • Oracle parameter array binding from c# executed parallel and serial on different servers

    - by redir_dev_nut
    I have two Oracle 9i 64 bit servers, dev and prod. Calling a procedure from a c# app with parameter array binding, prod executes the procedure simultaneously for each value in the parameter array, but dev executes for each value serially. So, if the sproc does: select count(*) into cnt from mytable where id = 123; if cnt = 0 then insert into mytable (id) values (123); end if; Assuming the table initially does not have an id = 123 row. Dev gets cnt = 0 for the first array parameter value, then 1 for each of the subsequent. Prod gets cnt = 0 for all array parameter values and inserts id 123 for each. Is this a configuration difference, an illusion due to speed difference, something else?

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  • How does one get rid of fishy behavior in Windows?

    - by Tom Wijsman
    After I had boot my computer this morning there suddenly flooded water from the top of the screen, after which some fishes dropped into it. Now I can barely see what I am doing because the water distorts the view. Sometimes the fish follow the cursor so I need to move it away or wait for the fish to mind their own business. This makes it very annoying to use my system. What have I tried? Reboot the system. This caused the water to deplete from the desktop. Upon reboot, the screen was refilled with water and fishes. Attach another monitor. Same problem, fills that monitor as well and gives me extra fish. Clicking the fish. Makes them turn direction. Right clicking the fish. Changes color of the fish, not really useful. I'm locked out of changing the background or screen saver settings. Hence, I had to post the lady below... Safe mode doesn't save me from the fishes. It does give me another background there, but I can't screenshot easily. Other user accounts experience this as well. The Guest account seems to experience more fish than the other accounts. Using HijackThis, OTL Timekeeper List, Syninternal Autoruns, RootKitRevealer, ShellExView and similar tools I can't seem to find any entries that could be it, the Sysinternals tools show everything as verified. I'm suspecting this to be a driver problem. Randomly removing drivers doesn't seem to alleviate the problem. When removing the Graphics Drivers, it makes my screen black. While that could be considered the solution, it's not what I want. Changing the time / date settings does also not seem to affect the fishes. Changing the time a few years in the future, I would have expected the fishes to be dead. But, the same fishes are still there... They simply won't die! Tried to get used to them. They are really bothering me, looks like they require food. I don't know how to give them food, but apparently they get it elsewhere during reboot... Tried to disable my mouse pointer and use the keyboard. This works, they now swim around more randomly. They do put their attention to huge changes on the screen, so I need to type slow. Or otherwise I can't see what I'm tying exactly. Hold my laptop upside down. This seems to affect the water and fishes, but the water stays in the screen. They seem super resistant against water sickness and confusion though... What does the problem look like? What do I need? A way to get rid of these fishes on my screen forever, they are really annoying me a lot and I'm about to crack the screen to see if that makes them escape. Do you have any idea why this problem is occurring? What are my considerations? Buying an USB fish tank could make the fish leave the screen, I am uncertain though whether the fish could leave the screen through the USB cable. Using the FISh (programming language) which seems to provide EXPRESSIVE POWER and EFFICIENT EXECUTION, I can however not find any examples on how to remove fish. What are my Specifications? I'm using a Sony Vaio Fishy laptop. Sony VAIO VGN-Fishy, VAIO. Processor: 1337 MHz, Intel Core 2 Duo, T5432, 1 MB, Intel PM965 Express, 667 MHz. Memory: 1024 MB, DDR2-SDRAM, 667 MHz, 2 x 1024 MB, 4 GB. Disk Drive: 50 GB, Serial ATA, 5400 RPM. Storage Media: Memory Stick™, Memory Stick PRO™. Display: 15.4 ", 1280 x 800 pixels, LCD. Video: GeForce 8400M GT, 128 MB. Optical Drive: DVD±R/RW DL, 24 x, 24 x, 24 x, 6 x, 4 x, 6 x, 4 x, 5 x, 5 x, 8 x, 8 x, 8 x, 8 x, 6 x, 6 x, 24 x, 24 x, 24 x, 16 x. Camera: 1.3 MP, 30 fps. Networking: 2.0+EDR. Keyboard: Touchpad, AZERTY. Operating System/Software: Windows Vista Home Premium. Security: Kensington. Weight & Dimensions: 98.8 oz (2800 g), 14 " (355.8 mm), 10 " (254.4 mm), 0.98 " (24.9 mm). Other features: 100 BASE-TX/10 BASE-T, 802.11a/b/g/n/Draft n, V92/V.90, fishes. Plz! Help me...

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