Capacitor question

i got a kt4 ultra 5 months ago with an athlon xp 2800, i was working when i heard a bubble gum explosion like noice from the case, and i notice that two capacitor caps, (two of those 3 between the processor socket and the mainboard power cable) were semiopened , and over the videocard was some strange liquid which i bet came from the inside capacitors, anyway, the board is working fine, as it was after the noice, this issue happened 2 days ago, the board as i say is working fine, stable, i did some benchmarks gaming and everything seems ok....my question is....should i take care of this issue since my boards is still working fine?? should i send the board to change the capacitors or something like that??, its was just two days ago but i guess these capacitors should be important and maybe, future problems may come from this..just suggest me what to do if you think its a serious problem, thank you. i really can not wait until the board stop working.

Hi justlooking,
While it would be nice to know why the capacitors failed, it is probably more practical to just accept that they have failed, and should be replaced. Hopefully, the mobo will then have a long and productive life  
I guess the failure could be due to a design error, a manufacturing error, or an inherent defect in the component (or possibly a combination of the above).
By design error, I mean that one or more of the chosen capacitor's characteristics was inadequate for the operating conditions (for example, ripple current is too high), or the capacitor is operating close to its specified limit.
Manufacturing faults could include inserting the capacitor the wrong way round (although that should show up when the mobo is first powered up in testing), or the wrong capacitor type was loaded (e.g. wrong capacitance or voltage rating), or even that Purchasing decided to get Brand X capacitor rather than the originally specified Brand Y because it was 1% cheaper, but didn't realise that the ESR was 10% higher, say.
If it turns out that this capacitor failure was an isolated incident, then it is more likely that it was a defective, or at least marginal, component. Electrolytic capacitors are probably the least reliable class of passive components, and their characteristics can change over time. I have read of TV service technicians who routinely change any low value electrolytics in a problem area of a faulty TV, because they know from experience that they can dry out, resulting in lower capacitance and higher ESR.
In the world of servicing, where time is money, the object is to fix the problem as quickly and cheaply as possible. As an engineer, I know that if I tried to make a living from Servicing, I'd starve!. I'd spend too much time trying to work out why something failed, instead of recognising that you can usually cure fault X by replacing components A, B and C.
Of course, it is possible that the capacitor failures were caused by a different component, which has over-stressed the capacitors. In this case, the replacement capacitors would also fail in time. However, it is probably easiest to replace the faulty capacitors in the first instance, and keep an eye on them for signs of impending failure (bulging ends). If the board is RMA'd, then I guess MSI will decide what the best course of action is.
Cheers

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    Before I get to my questions, let me be frank in saying that I do not have a Mac(but intend to after my desktop dies) at this time but in my house we have two iPhone 4s's and one iPad 2 as far as Apple products are concerned.  My computer network consists of my HP Windows 7 based desktop and HP Windows 7 laptop and I have a home ethernet in every room in the house . In addition, my den's ethernet connection is connected as Ethernet wall jack in which the connections include---->Ethernet switch------>Tivo---->Playstation 3/Xbox 360/Nintendo Wii/----->Samsung Smart TV---->Linksys E2500.
    My questions are as follows:
    1. Initial/Out of the box set up: Based on what I have read here, it is possible for a PC user to setup the Airport Extreme by downloading the Airport Extreme utility software from Apple. However I have been confused based on what I have read on Amazon in that some users report that the initial setup can only be done using a Mac.  Would someone from this forum kindly clairify this for me? Can I set up the Airport Extreme with my network assuming that I have previously downloaded an installed Apple's Airport Extreme Utility for the PC?
    2. Using the Airport Express as a wireless bridge: Currently my Linksys E2500 serves as my secondary router in my den in bridge mode.  Can I set up an Airport Express as a wireless bridge assuming I was sucessfully in setting up my Airport Extreme? On Linksys products this is done by setting the router in bridge mode and assigning it a specific IP address within the bridge router's settings.  So for example, my Linksys E2500 has a 192.168.1.1X IP address, can I do this with the Airport Extreme?  Note the the intention here for the extra router in my den to provide additional wireless coverage due to the size of my home.  I do not need it to provide me with the same wireless network name as my primary router, I only want to provide the back of my house with additional wireless coverage that a primary router will not provide.
    3. Router Security and reliability:  I would like the router that I purchase to include regular firmware updates beyond that of one year.  Especially now that most modern routers have some sort of cloud set up,  I wouldn't want to purchase a router today, only to find out that I wouldn't be able to update its firmware one year from now.   With respect to Apple's routers,  how often does Apple release firmware and typically speaking;  how long will Apple support additional firmware releases for its products?
    Thanks to anyone who reads and responds to my long post! 

    The one problem is Apple using their own automatic port opening system.. NAT-PMP which is fine for apple clients but will not work with almost anything else made which depends on UPNP ..
    There are lots of hassles with PS3 and XBox live and anything that depends on standard automatic port opening for interactive internet connection.
    Manually opening ports is possible but a pain.
    eg
    AirPort Extreme and xbox 360
    https://discussions.apple.com/thread/5385065?tstart=0
    I do agree with John Galt that the Apple products are well made and generally great.. they did have a bad capacitor failure issue in the Gen1 and Gen2 TC which he may have forgotten about.. I have repaired about 200 of the bludgers. And there was a dedicated site to pressure apple to fix them.. with 2500 recorded dead TC.
    See http://timecapsuledead.org/
    See
    https://sites.google.com/site/lapastenague/a-deconstruction-of-routers-and-modem s/apple-time-capsule-repair
    And some ongoing issues.. even post getting that fixed up.
    https://sites.google.com/site/lapastenague/a-deconstruction-of-routers-and-modem s/apple-time-capsule-repair/new-issue-with-a1355-gen-3-tc
    But the AEBS had external power supply so didn't add to the heat of built in HDD and power supply in a case too small without cooling. New ones seem to have learnt the lessons of the past in that the power supply is internal but they use a fan system to keep it cool.
    See http://www.ifixit.com/Device/Apple_Time_Capsule for internal construction.. TC and AEBS are now identical except for the hard disk.
    An option worth considering is using a router with third party source firmware.
    You are then never cut off from great updated firmware.. and you can do amazingly more with the fuller setup that includes Telnet cli and extensive interface on the GUI.
    Eg Gargoyle on a Netgear WNDR3800 or even cheaper TP-Link WDR3600 or WDR4300.
    These offer full QoS, not in Apple products.
    Full throttling controls, not in Apple products.
    Quota, not in any other products in domestic market at all.
    NAT-PMP and UPNP, not in Apple products.
    VPN, not in Apple products.
    Multiple VLAN, Multiple IP addressing, not in Apple producs.
    SMTP, which Apple removed from all their new products.. no reason why.
    Log access, which Apple removed from the new airport utility.. no reason why.
    etc.
    If for some reason that firmware doesn't suit.. you can flash over to DD-WRT, or OPENWRT.. etc. in other words you are never again beholden to the manufacturer who after the product is EOL is also end of support.

  • Blinking folder & Question Mark - Drive Good - Files Are Still there

    Okay,
    So I've been a long way with this iMac. It originally came to me with bad power supply. I replaced. Then it came back with bad capacitors. I replaced. Then it came back not booting. Here's where I'm stuck.
    I dont see the drive if I use command - s. If I boot OS X install cd, I can select OS X 10.4.11 on [OS Volume Name] in Startup Disk, I can see all the files on the disk, I've ran all repair options including file permissions and Disk Warrior, but the OS never loads.
    Tried Safe Mode, Single User, Verbose Mode, PRAM Reset, NVRAM Reset, reset-all in command-option-o-f mode, I've blessed the /Volumes/[OS Volume Name]/System/Library/CoreServices directory several different ways, still the OS never loads... blinking folder & question mark.
    I dont have correct install cd for this system and can't reinstall. Any suggestions or repairing bootloader, kernel, or something advanced...???
    Anyone?

    Hi Jkat, and a warm welcome to the forums!
    Sounds like short of a proper install disk, you've tried everything but this...
    applesetupdone...
    This was Posted by: JoseAranda at September 9, 2006 3:48 AM
    "OK, restart your computer, hold down Command-s and type in the following:
    /sbin/fsck -y Enter
    /sbin/mount -uaw Enter
    rm /var/db/.applesetupdone Enter
    # The rm command is the remove command which deletes the file.
    # Robert: I'd rename the file via: mv /var/db/.applesetupdone /var/db/.applesetupdone.old
    reboot Enter
    Once you've done that the computer reboots and it's like the first time you used the machine. Your old accounts are all safe. From there you just change all other account passwords in the account preferences!!
    end of posted by: JoseAranda"
    But not on this forum I guess.

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