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PC freezes randomly

By unserviviente ·
Hello, my 1 year old computer just started freezing like crazy.
It may freeze during start up;
it may freeze when closing a maximized window;
it may freeze when right-clicking any icon;
it may freeze when scrolling up or down in a web browser (firefox);
it may freeze when scrolling in any direction in photoshop, flash.
It doesn't freeze in safe mode.
Well... that's all.
My PC is Pentium D 3 GHz,512 RAM, windows XP SP2, nVidia 8400 GS video card.
I've already tried memtest, cleaning, registry fixes, changing the RAM into other slots, cleaning.
This is melting my brain, please help.

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Are you using Norton

by Jacky Howe In reply to PC freezes randomly

http://techrepublic.com.com/5208-7343-0.html?forumID=101&threadID=215813&messageID=2525292
<br><br>
<i>Keep us informed as to your progress if you require further assistance.</i>
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<i>If you think that any of the posts that have been made by all TR Members, have solved or contributed to solving the problem, please Mark them as <b>Helpful</b> so that others may benefit from the outcome.
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Nope

by unserviviente In reply to Are you using Norton

I'm using NOD32

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What is the

by Jacky Howe In reply to Nope

Make and Model of the PC. Do you know what wattage the Power Supply Unit is. Yes it is pretty obvious that you are short on (RAM) Memory but you say that you have no problems in Safe Mode when only minimal Drivers are loaded. Have you recently installed anything around the time that this started.
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Click on Start, Run and type in msconfig and press Enter. Disable every single entry in the list on the startup Tab. Select the Services Tab. Down the bottom you will see a Box next to 'Hide All Microsoft Services' click on the Box and then unselect any related Files that may be a reference to anything that you have NOT installed, in the list on the Services Tab. Click Apply, Close you will be asked to Restart.
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Reboot and see if you can log on normally. If you can, Uninstall the offending Software and re-enable the Startup options one at a time and restart the PC. Hopefully that may cure it.
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Click on Start, Run and type in msconfig and press Enter. Select the Startup Tab.
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You are looking for any oddly named files eg: qrxz.exe
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These files can be found mainly in two locations. 1 The Registry and 2 %windir%.
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1.
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HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
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2.
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C:\WINDOWS C:\WINDOWS\system32
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3.
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To find the location for the Registry entry, expand the Location column to find the Registry Key.
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Click Start, Run and type in regedt32 and press Enter. Then navigate to 1. In the right hand pane you will see a reference to qrxz.exe, right click on it and select Delete. If there were more oddly named files delete them as well. Exit Registry Editor.
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4.
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To find the location for the Executable File expand the Command column and take note of the Directory.
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Click Start, right click My Computer and select Explore, Navigate to the Directory that was noted. Highlight the file and hoding down the Shift Key press Delete. Repeat this process for any other files found.
<br><br>
<i>Keep us informed as to your progress if you require further assistance.</i>
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<i>If you think that any of the posts that have been made by all TR Members, have solved or contributed to solving the problem, please Mark them as <b>Helpful</b> so that others may benefit from the outcome.
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You will have to do the above in Safe Mode

by Jacky Howe In reply to What is the

Also check to see that it isn't a Pagefile Problem
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By default, Windows XP Professional does not clear the virtual memory pagefile when the system is shut down. In some organizations this is considered a breach of security because the data in the pagefile might be accessible to users who are not authorized to view that information. To enable this feature and clear the pagefile each time the system is shut down, start the Group Policy snap-in by clicking Start, Run and type in secpol.msc expand Local Policies, and then select Security Options. Right-click Shutdown: Clear Virtual Memory Pagefile and then click Properties. By default, it is disabled. To force Windows XP Professional to clear the pagefile when the system is shut down, select Enabled.
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Go to Control Panel, System Properties and take note of the amount of RAM. Now you need to make sure that the Pagefile is equal to 1.5 times the installed RAM.
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Go to Control Panel, System Properties, click on Settings under Performance, click on the Advanced tab, click on Change under Virtual Memory.
<br><br>
<i>Keep us informed as to your progress if you require further assistance.</i>
<br><br>
<i>If you think that any of the posts that have been made by all TR Members, have solved or contributed to solving the problem, please Mark them as <b>Helpful</b> so that others may benefit from the outcome.
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First

by w2ktechman In reply to PC freezes randomly

upgrade your RAM. 512 is enough for Win XP, but not with a heavy load.
Also run through your startup options, remove anything not needed (installed applications that add to startup).

Also, try a system cleanup remove temps, clean temp IE files, defragment, run checkdisk. Run the system cleanup utility as well.

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I have to agree 512 MEG isn't anywhere enough RAM

by OH Smeg In reply to PC freezes randomly

And because most new M'Boards are Dual Channel RAM only having 1 RAM Stick installed doesn't allow the Full FSB to be utilized. At best the CPU is only being feed at 50% of the available capacity.

By moving the RAM Stick from Slot 1 this will also slow down the system significantly so replace it in Slot 1 where it originally was.

Now with Dual Channel RAM you need at least 2 Identical Sticks of RAM and they need to be inserted tot he Correct Sockets. If you have different Color Sockets then generally speaking you need 1 Stick i each socket of the same color starting at Socket 1. You generally need to populate Sockets 1 & 3 to get 100% capacity of the possible data feed to the CPU but some M'Boards require Sockets 1 & 2 to be populated, You need to read the M'Board manual for this to get it right. Also you Can Not use odd RAM or an uneven number of RAM Sticks as this reduced the unit to Single Channel Mode and slows down the system. So if you replace the existing RAM with the biggest that the M'Board will carry and buy 2 of them provided that they are not bigger than 2 GIG Capacity with a 32 Bit OS you will get the maximum benefit possible, If you want to use the existing RAM Stick you need to purchase another of the same Type & Speed & ideally it should come from the same maker, but even then it is possible to hit Timing Issues with the different RAM in use.

In a perfect world you would have perfectly identical RAM in each slot but unfortunately you have to settle for 2 Sticks of RAM from the Same Manufacturing Batch to minimize the possibility of Timing Issues.

Also update the Video Card Drivers as NVidia has has issues with the 8400 Chip Set Video Cards these may need to be replaced if it is found that NVidia has a Design Problem with the Chips but currently most manufactures are suppling Drivers to keep the Video GPU Cooler than what they originally came out with.

Try cleaning out all of the Temp Files with Advanced Windows Care

http://tinyurl.com/2emsdd

And use a Defrag tool like Smart Defrager

http://tinyurl.com/2r6ogg

Also opening the Task Manager and seeing what is actually happening with the unit wouldn't hurt. If the CPU is running at 100% continuously or the Page File is consistently at the upper limits of it's size you need to look to see what is causing this. Bu with only 512 MEG of RAM the Page File should be running quite high.

Remove any Items from Startup that are not required and regally scan the computer for Infections with an AV product that is updated daily or if you do not have any form of AV protection you can use something like Avast

http://tinyurl.com/8z9h5


Also download install and keep updated Mal Ware Products like Adaware 2008

http://tinyurl.com/yt5z4p

& Spy Boy S&amp

http://tinyurl.com/yrwy2

As your Computer is now a year old check that the AV product hasn't expired and allowed the system to become infected with something new that has been released after your AV product Expired.

It would be a good idea to update all your AV & Mal Ware Products and then perform a scan in Safe Mode till you can either not remove something or the system is clean.

Col

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Ok, thanks

by unserviviente In reply to I have to agree 512 MEG ...

I'll begin by taking care of the RAM, I've already used a defrager with no results, and my AV updates continuously (and it is currently updated); but anyways, I shall try doing what you told me, will let you know if it worked.
Thanks.

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Video or Other Driver

by willcomp In reply to PC freezes randomly

I suspect a driver issue (most likely video driver) since PC is freezing and not rebooting or shutting down.

To check for video driver issues, press F8 during bootup and select VGA Only mode from the boot options menu. See if running in VGA mode solves the freezing problem.

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Hardware or Software

by Babylonandy In reply to PC freezes randomly

If your computer is freezing up, no matter what you are doing on it, I would first look at the hardware side of the computer first.

Look at your CPU, is it clogged up with dust? If it is, this could be the reason your computer is freezing up (CPU is over heating). I am sure you have already checked this, but I thought I would ask.

Also, is your computer custom built or is it proprietary like a Dell computer? If it's proprietary, Dell has a hardware diagnostic disk (or F12 at boot up) that will test your hardware.

If you are confident that your hardware is not faulty, then you can move on to the software side of things.

While in Windows, hit Windows+R (or Start -> Run)

Type CMD (to bring up the command line interface)

Type SFC /SCANNOW (make sure you have your Windows XP disk in the CD-Rom)

Scans the integrity of all protected system files and replaces them with correct Microsoft versions.

This will do a System File Checker and fix any corrupt files, which may be damaged.

Other than that, I will try what other users have posted, they are some great resources.

Good luck!

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And if you don't have a Dell Type Test Disc

by OH Smeg In reply to Hardware or Software

You can use the Ultimate Boot CD to do the same type of thing it's available for download here

http://www.ultimatebootcd.com/download.html

Col

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