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Pc Freezes At Startup And Can't Get Into Safe Mode


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#1 misfitsoda

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Posted 21 August 2008 - 10:58 PM

HI, I have a PC problem I'm having a hard time figuring out and was looking for help.
I have a 2 year old HP Media Center with XP home. About a week ago the PC randomly rebooted twice. nothing had been installed or changed aside from a driver update for my video card about a week earlier. I tried a virus scan with trend micro, it rebooted. I started to back up some files on a USB harddrive and it rebooted.
I cleaned out all the dust and the fans work.
I ended up running the Windows Memomry Diagnostic ISO and the test came up with memory failures. (The test also ran overnight with no reboots, so I think that'd elimanate overheating) 2 1 Gig ram sticks. I replaced one of the sticks with a new stick, still failures. I tried the new stick with the other stick, no memory failures. So I thought I had it down to a bad RAM stick.
Ran fine for about 2 hours. I start backing up the hard drive to the USB harddrive and the screen went black. I reboot and it runs through scandisk and gets an unexpected error and reboots, runs through scandisk again, gets an unexpected error again, over and over.
I try running in safe mode and it hangs at mup.sys and will not go into safe mode. I went into the recovery console and did a chkdsk and it found an error, but doesn't detail what. I rebooted and it gets to the blue XP loading screen but freezes there. I ran the Mem Diagnostic test again and it's coming back with failures again as it had done originally.
So that's where I am. I can't boot up normally because it hangs and I can't get into safe mode. Any ideas? Thanks!

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#2 hamluis

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Posted 22 August 2008 - 07:21 PM

I guess that I don't understand why you keep putting RAM combinations in...that evidence problems.

I don't know anything about the test you've run...but I suggest that you download and run Memtest86.com - Memory Diagnostic - http://www.memtest86.com/

If you have 3 RAM modules...I suggest testing them individually (initially) one at a time, letting the memtest series of exercises run for about 1 hour each time. If you get errors...don't use that module again, put it aside.

Then...I would try different pairs together, again 1 hour minimum for each try.

I also suggest that you save the reults of a given try to file on your hard drive.

What I did when I ran Memtest for 4 modules...I marked each module (with a marking pen) A, B, C, or D...ran individual combinations (Memtest will show which module has errors on the results) and then eliminated modules from consideration.

Ultimately I found a pair that produced no errors, at any time.

Your modules may have different timings...and I suppose that memory, like anything else, can deteriorate over time.

Louis




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