constant errors with corrupt files

I built a computer with an 80GB WD hard drive. Asus p4s800, 512 mb crucial ram. 2.8ghx p4. Running Windows XP Home. I have a DVD ROM, DVD Burner. 1.44 Floppy. ATI Radeon AGP 7000 video card. Antec Case w/ power smart power supply- 350watts. My problem is never ending. A week after I built it it started to have trouble with missing or corrupt files. Then after serveal re-installs it seemed to be ok for several weeks. Now I started it up this morning and got a missing file error -- ntoskrnl.exe  , I rebooted and it came back with BAD_SYSTEM_CONFIG_INFO error. So I tried to do a repair using the windows cd and it kept failing with missing files. So I re-booted again to try the last good config again and it came back with this error - PCIIDEX.SYS , After that I decided I may need to re-install again. But I want to know why I will run for weeks before a different error comes up. The last stop error was , stop: 0x0000007E ( 0xc000001D,0xF87B96C0, 0xF894C2C4, 0xF894BFC0 ) address F87B96C0 base at F87B5000, Date stamp 41107B4C.

I have run the WD hard drive check and the drive passed. I ran memtest86 and it ran many passes and it did not find any errors. I use McAfee antivirus. And Spybot S&D, and Ad-AwareSE. Can it be a bad motherboard or a bad windows disc? I used the upgrade cd and put in my win 98 disc to get the upgrade to install. I cannot even get into safe mode, it keeps bringing me back to the BAD_SYSTEM_CONFIG_INFO error. I have even taken out the battery to clear the cmos. I do not over clock. I am using Windows Home with SP2. All windows updates are current. mobo temp is 80.5 F, and the CPU temp is 115 F, The voltage is Vcore- 1.39v, 3.3v is 3.28v , 5v is 5.02v, and the 12v is 11.90v . I get 1 beep as it posts.

Thanks , John
jnoblesrAsked:
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LeeTutorretiredCommented:
Have you seen this MSKB article:

http://support.microsoft.com/default.aspx?scid=kb;en-us;326679
"STOP 0x00000074 BAD_SYSTEM_CONFIG_INFO" Error Message When You Start Your Computer

Try removing memory modules one at a time, as suggested by the article.  Try another memory test diagnostic:

Windows Memory Diagnostic
http://oca.microsoft.com/en/windiag.asp

The Windows Memory Diagnostic tests the Random Access Memory (RAM) on your computer for errors. The diagnostic includes a comprehensive set of memory tests. If you are experiencing problems while running Windows, you can use the diagnostic to determine whether the problems are caused by failing hardware, such as RAM or the memory system of your motherboard. Windows Memory Diagnostic is designed to be easy and fast. On most configurations, you can download the diagnostic, read the documentation, run the test and complete the first test pass in less than 30 minutes.

jnoblesrAuthor Commented:
Thanks Lee, But does this program work if windows will not boot? All I see now is the BAD_SYSTEM_CONFIG_ERROR. I put in another hard drive and formatted it with partition magic 8 and when I tried to install windows on it I see an error about a missing hal.dll file. Also when I went into the bios I noticed there is two devices listed under system bus control with the same IRQ. One is Device ID 7001 - SBC - 9 and the other is 7002 - SBC- 9. They both are usingthe same IRQ number. I will download the windows memory diagnostic test and try it today.

Thanks, John
LeeTutorretiredCommented:
The Windiag program generates a boot floppy and runs from that. (Of course, you would need to have another computer to download to, run it, and create the floppy.  But I am presuming you do, since you are asking a question on Experts-Exchange.)

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jnoblesrAuthor Commented:
Hello Lee, I do have a laptop that I borrowed to get online until I can get this figured out. I downloaded the test and ran it on my computer. It stopped while it was loading with a Disc I/O error. So I tried it on the laptop and it ran 3 passes with no errors. I am going to put in another floppy drive and see if that is the I/O problem and will post back.

Thank for the tool and I will have another floppy in soon , John
jnoblesrAuthor Commented:
Hi Lee, I tried 2 other floppy drives and no go with the windows program. I even tried to install win 98 the hard drive after formatting again and it came up with a stop error and would not proceed. At this point I think I am going to buy another motherboard and try that. Maybe I just have a bad MB. Can it be a bad processor that would cause intermitent problems ? Or can it be a defective motherboard with bad controllers?



John
jnoblesrAuthor Commented:
Thanks Lee, I will try to copy this url and paste it into another question. I appreciate your quick responses !!!

John
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