I tried to identify my motherboard via everest and a lot of other programs. So, the problem is that I can't find driver for my motherboard, cuz I don't know which one I have(I'm fixing neighbors PC, and he's noob and he lost driver cd and manual xD).
Here's Hijackthis log if u need one:
Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 8:56:08 PM, on 9/18/2009
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.20772)
Boot mode: Normal
Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Ashampoo\Ashampoo Magical Defrag\bin\aDefragService.exe
C:\PROGRA~1\AVG\AVG8\avgwdsvc.exe
C:\PROGRA~1\AVG\AVG8\avgfws8.exe
C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\msco rsvw.exe
C:\Program Files\Java\jre6\bin\jqs.exe
C:\PROGRA~1\AVG\AVG8\avgam.exe
C:\PROGRA~1\AVG\AVG8\avgrsx.exe
C:\PROGRA~1\AVG\AVG8\avgnsx.exe
C:\WINDOWS\system32\nvsvc32.exe
C:\WINDOWS\System32\TUProgSt.exe
C:\PROGRA~1\AVG\AVG8\avgemc.exe
C:\WINDOWS\system32\RUNDLL32.EXE
C:\Program Files\Java\jre6\bin\jusched.exe
C:\PROGRA~1\AVG\AVG8\avgtray.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\AVG\AVG8\avgcsrvx.exe
C:\Program Files\Skype\Phone\Skype.exe
C:\Program Files\Ashampoo\Ashampoo Magical Defrag\bin\aDefragCtrl.exe
C:\Program Files\Trojan Guarder Gold Version\Trojan Guarder.exe
C:\WINDOWS\system32\wscntfy.exe
C:\Program Files\Mozilla Firefox\firefox.exe
E:\Install\setup.exe
C:\WINDOWS\system32\msiexec.exe
C:\WINDOWS\system32\MSIEXEC.EXE
C:\WINDOWS\system32\MsiExec.exe
C:\PROGRA~1\COMMON~1\INSTAL~1\Driver\9\INTEL3~1\ID river.exe
C:\WINDOWS\system32\MsiExec.exe
C:\DOCUME~1\Admin\LOCALS~1\Temp\{C5ADA65A-7828-4D85-B071-ECC52B51F794}\DPInst.exe
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page =
Bing
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL =
MSN.com
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL =
Bing
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page =
Bing
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page =
MSN.com
O2 - BHO: Skype add-on (mastermind) - {22BF413B-C6D2-4d91-82A9-A0F997BA588C} - C:\Program Files\Skype\Toolbars\Internet Explorer\SkypeIEPlugin.dll
O2 - BHO: WormRadar.com IESiteBlocker.NavFilter - {3CA2F312-6F6E-4B53-A66E-4E65E497C8C0} - C:\Program Files\AVG\AVG8\avgssie.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files\Java\jre6\bin\jp2ssv.dll
O2 - BHO: JQSIEStartDetectorImpl - {E7E6F031-17CE-4C07-BC86-EABFE594F69C} - C:\Program Files\Java\jre6\lib\deploy\jqs\ie\jqs_plugin.dll
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\WINDOWS\system32\NvMcTray.dll,NvTaskbarInit
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre6\bin\jusched.exe"
O4 - HKLM\..\Run: [AVG8_TRAY] C:\PROGRA~1\AVG\AVG8\avgtray.exe
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [Skype] "C:\Program Files\Skype\Phone\Skype.exe" /nosplash /minimized
O4 - HKUS\S-1-5-19\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'LOCAL SERVICE')
O4 - HKUS\S-1-5-19\..\RunOnce: [ShowDeskFix] regsvr32 /s /n /i:u shell32 (User 'LOCAL SERVICE')
O4 - HKUS\S-1-5-20\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'NETWORK SERVICE')
O4 - HKUS\S-1-5-20\..\RunOnce: [ShowDeskFix] regsvr32 /s /n /i:u shell32 (User 'NETWORK SERVICE')
O4 - HKUS\S-1-5-18\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SYSTEM')
O4 - HKUS\S-1-5-18\..\RunOnce: [ShowDeskFix] regsvr32 /s /n /i:u shell32 (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'Default user')
O4 - HKUS\.DEFAULT\..\RunOnce: [ShowDeskFix] regsvr32 /s /n /i:u shell32 (User 'Default user')
O4 - Global Startup: Ashampoo Magical Defrag.lnk = C:\Program Files\Ashampoo\Ashampoo Magical Defrag\bin\aDefragCtrl.exe
O4 - Global Startup: Trojan Guarder Gold Version.lnk = C:\Program Files\Trojan Guarder Gold Version\Trojan Guarder.exe
O9 - Extra button: Skype - {77BF5300-1474-4EC7-9980-D32B190E9B07} - C:\Program Files\Skype\Toolbars\Internet Explorer\SkypeIEPlugin.dll
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O18 - Protocol: linkscanner - {F274614C-63F8-47D5-A4D1-FBDDE494F8D1} - C:\Program Files\AVG\AVG8\avgpp.dll
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~1\COMMON~1\Skype\SKYPE4~1.DLL
O20 - Winlogon Notify: avgrsstarter - C:\WINDOWS\SYSTEM32\avgrsstx.dll
O23 - Service: AshampooDefragService - - C:\Program Files\Ashampoo\Ashampoo Magical Defrag\bin\aDefragService.exe
O23 - Service: AVG8 E-mail Scanner (avg8emc) - AVG Technologies CZ, s.r.o. - C:\PROGRA~1\AVG\AVG8\avgemc.exe
O23 - Service: AVG8 WatchDog (avg8wd) - AVG Technologies CZ, s.r.o. - C:\PROGRA~1\AVG\AVG8\avgwdsvc.exe
O23 - Service: AVG8 Firewall (avgfws8) - AVG Technologies CZ, s.r.o. - C:\PROGRA~1\AVG\AVG8\avgfws8.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Common Files\InstallShield\Driver\1150\Intel 32\IDriverT.exe
O23 - Service: Java Quick Starter (JavaQuickStarterService) - Sun Microsystems, Inc. - C:\Program Files\Java\jre6\bin\jqs.exe
O23 - Service: NMIndexingService - Nero AG - C:\Program Files\Common Files\Ahead\Lib\NMIndexingService.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - Service: TuneUp Drive Defrag Service (TuneUp.Defrag) - TuneUp Software - C:\WINDOWS\System32\TuneUpDefragService.exe
O23 - Service: TuneUp Program Statistics Service (TuneUp.ProgramStatisticsSvc) - TuneUp Software - C:\WINDOWS\System32\TUProgSt.exe
--
End of file - 6449 bytes
Thx
Motherboard driver problem 
We can't even tell what make or model the board is with a HJT log. Have you tried using CPUZ? It'll atleast give us an idea of what motherboard it is. Best way to find out what board you have is looking at it. You'll see a model number, if you don't see one or recognize one, take some good photos of it, and post the pictures here.
Linear Mode
