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? injured capacitor on motherboard


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7 replies to this topic

#1 Jungleman

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Posted 26 January 2005 - 09:59 PM

How do I discover why my computer reboots several times on start up and sometimes randomly with various programs??

I am free of spyware and the like (to my knowledge) as I have spent extensive time attending to this problem.

I opened up the case and looked around. It is very clean, fans work well. I did notice that two of the capacitors on the motherboard are missing the silver top that the others have; almost as if they've peeled off. Could this be a culprit??
How do I discover if it is??

thanks

Edited by Jungleman, 26 January 2005 - 10:00 PM.


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#2 Grinler

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Posted 26 January 2005 - 11:52 PM

Lets check for spyware to be safe:

Create a directory on your hardrive to save HijackThis.exe. A directory like c:\hijackthis. If you do not do this, you will not be able to use the backup/restore features.

Download HijackThis from:

HijackThis Download Site

Save this file into the directory you made previously and then run the program named hijackthis.exe. When the program opens click on the Config button, then click on the Misc Tools button, and click on the Check for update online button. When it completes checking/applying updates press the back button.

Now click on the Scan button and when it is finished click on the Save Log button. A Notepad window will open with the contents of this log. Click on Edit then click on Select all. Then click on Edit and then Click on Copy.

Create a reply to this post here and right click in message area and select paste to paste the log into the post.

Someone will reply to you after reading this post. DO NOT fix any entries unless you understand what you are doing.

To see a tutorial with screenshots on using HijackThis you can click on the link below:

How to use HijackThis to remove Browser Hijackers, Malware, & Spyware

#3 Jungleman

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Posted 27 January 2005 - 12:35 PM

Logfile of HijackThis v1.99.0
Scan saved at 12:35:23 PM, on 1/27/2005
Platform: Windows 2000 SP4 (WinNT 5.00.2195)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

Running processes:
C:\WINNT\System32\smss.exe
C:\WINNT\system32\winlogon.exe
C:\WINNT\system32\services.exe
C:\WINNT\system32\lsass.exe
C:\WINNT\system32\svchost.exe
C:\WINNT\system32\spoolsv.exe
C:\Program Files\Common Files\Symantec Shared\ccEvtMgr.exe
C:\WINNT\System32\svchost.exe
C:\Program Files\Norton AntiVirus\navapsvc.exe
C:\WINNT\system32\nvsvc32.exe
C:\WINNT\system32\regsvc.exe
C:\WINNT\system32\MSTask.exe
C:\WINNT\system32\stisvc.exe
C:\WINNT\System32\WBEM\WinMgmt.exe
C:\WINNT\system32\svchost.exe
C:\WINNT\System32\svchost.exe
C:\WINNT\Explorer.EXE
C:\Program Files\Common Files\Symantec Shared\ccApp.exe
C:\Program Files\QuickTime\qttask.exe
C:\Program Files\iTunes\iTunesHelper.exe
C:\Program Files\iPod\bin\iPodService.exe
C:\Program Files\interMute\SpySubtract\SpySub.exe
C:\Palm\HOTSYNC.EXE
C:\Program Files\SpywareGuard\sgmain.exe
C:\Program Files\SpywareGuard\sgbhp.exe
C:\HJT (HiighJack)\HijackThis.exe

O2 - BHO: SpywareGuard Download Protection - {4A368E80-174F-4872-96B5-0B27DDD11DB2} - C:\Program Files\SpywareGuard\dlprotect.dll
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar1.dll
O2 - BHO: NAV Helper - {BDF3E430-B101-42AD-A544-FADC6B084872} - C:\Program Files\Norton AntiVirus\NavShExt.dll
O3 - Toolbar: Norton AntiVirus - {42CDD1BF-3FFB-4238-8AD1-7859DF00B1D6} - C:\Program Files\Norton AntiVirus\NavShExt.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar1.dll
O4 - HKLM\..\Run: [Synchronization Manager] mobsync.exe /logon
O4 - HKLM\..\Run: [UpdReg] C:\WINNT\UpdReg.EXE
O4 - HKLM\..\Run: [ccApp] "C:\Program Files\Common Files\Symantec Shared\ccApp.exe"
O4 - HKLM\..\Run: [ccRegVfy] "C:\Program Files\Common Files\Symantec Shared\ccRegVfy.exe"
O4 - HKLM\..\Run: [SSC_UserPrompt] C:\Program Files\Common Files\Symantec Shared\Security Center\UsrPrmpt.exe
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [iTunesHelper] C:\Program Files\iTunes\iTunesHelper.exe
O4 - Startup: HotSync Manager.lnk = C:\Palm\HOTSYNC.EXE
O4 - Startup: SpywareGuard.lnk = C:\Program Files\SpywareGuard\sgmain.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office\OSA9.EXE
O4 - Global Startup: SpySubtract.lnk = C:\Program Files\interMute\SpySubtract\SpySub.exe
O6 - HKCU\Software\Policies\Microsoft\Internet Explorer\Restrictions present
O8 - Extra context menu item: &Google Search - res://C:\Program Files\Google\GoogleToolbar1.dll/cmsearch.html
O8 - Extra context menu item: Backward Links - res://C:\Program Files\Google\GoogleToolbar1.dll/cmbacklinks.html
O8 - Extra context menu item: Cached Snapshot of Page - res://C:\Program Files\Google\GoogleToolbar1.dll/cmcache.html
O8 - Extra context menu item: Similar Pages - res://C:\Program Files\Google\GoogleToolbar1.dll/cmsimilar.html
O8 - Extra context menu item: Translate into English - res://C:\Program Files\Google\GoogleToolbar1.dll/cmtrans.html
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\WINNT\system32\msjava.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\WINNT\system32\msjava.dll
O12 - Plugin for .spop: C:\Program Files\Internet Explorer\Plugins\NPDocBox.dll
O16 - DPF: {99B6E512-3893-4155-9964-8EB8E06099CB} (WebSpyWareKiller Class) - http://download.zonelabs.com/bin/promotion...ctor/WebSWK.cab
O23 - Service: Symantec Event Manager - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\ccEvtMgr.exe
O23 - Service: Symantec Password Validation Service - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\ccPwdSvc.exe
O23 - Service: Logical Disk Manager Administrative Service - VERITAS Software Corp. - C:\WINNT\System32\dmadmin.exe
O23 - Service: iPod Service - Apple Computer, Inc. - C:\Program Files\iPod\bin\iPodService.exe
O23 - Service: Norton AntiVirus Auto Protect Service - Symantec Corporation - C:\Program Files\Norton AntiVirus\navapsvc.exe
O23 - Service: NVIDIA Driver Helper Service - NVIDIA Corporation - C:\WINNT\system32\nvsvc32.exe
O23 - Service: ScriptBlocking Service - Symantec Corporation - C:\PROGRA~1\COMMON~1\SYMANT~1\SCRIPT~1\SBServ.exe
O23 - Service: SymWMI Service - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\Security Center\SymWSC.exe


Could the capacitors cause reboots?

#4 rexifelis

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Posted 27 January 2005 - 12:42 PM

as a definition of a damaged/dead capacitor:

Most capacitors will rarely become damaged, and when
they do you might find the following physical features;
arcing or burning at the insulator, the presence of what
looks like an oily film on top of the capacitor or under it.
A oily kind of smell is also a good sign that it may be
defective. The last possible physical indication is the
most easy to spot, any bulging on the capacitor means
that it either has broken down or is in the process, which
means that it needs to be replaced.

not every capacitor is manufactured to the same specs...
different manufacturers make the same specification
capacitor but they can look quite different...

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#5 Leurgy

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Posted 27 January 2005 - 12:49 PM

I would think that bad capacitors could cause reboots as they regulate power to different parts of the motherboard. Bad capacitors have been an issue for a couple of years since a manufacturer of the fluid they are filled with was making some bad batches that came into fairly wide circulation.

PCStats has an article with pictures. More articles about the issue can be found here.

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#6 Grinler

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Posted 27 January 2005 - 02:48 PM

The log is clean btw... keep your case open and run it for a day or so and see if the problem continues happening. if it doesnt it may be a heat problem

#7 Jungleman

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Posted 27 January 2005 - 05:07 PM

thank you!!
My machine seems clean but still reboots periodically.
Is it worthwhile to reformat the machine to eliminate any potential deeper problems or does HJT show it all??

#8 Grinler

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Posted 27 January 2005 - 11:37 PM

No i dont think ther eis a need to reinstall your OS. Lets try and see if this is a heat problem first




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