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Trouble After Upgrade

FreeLancer asked
Medium Priority
Last Modified: 2013-11-10
I just recently upgraded from a 266-FSB Athlon XP 1.4Ghz(Thoroughbred) with 512Mb of DDR-266 RAM(2 Sticks). To a 333-FSB Athlon XP 2.08Ghz(Barton) and 512Mb of DDR-333 RAM(1 stick)

Ever since the upgrade I've been running into problems with the computer. It crashes intermittently, and when I say crashes the computer either reboots completely, sometimes with the blue screen stating your computer has encountered a serious error, sometimes without. Even after the reboot Windows doesn't prompt me to even boot into safe mode, it just loads right back into Windows like nothing happened.

Other times it just freezes completely. My mouse stop's working, and I can't CTRL-ALT-DEL for the task manager. I have to reboot the computer, either with the reset switch or holding the power button down. The computer doesn't prompt me about the improper shutdown, and the request to load windows in safe mode. It just boots back into windows also like nothings happened.

Now I have a couple different culprits here that I think might have an effect on it.

1) My first thought is bad memory. For a couple different reasons. One of the main ones being the fact that if I let my computer run with only the desktop up and Winamp playing a little music, it'll stay up for 2-3Hrs or more. However if I load a game, and this is just about any game. The computer will crash either right away or the game will not load. ie: Splinter Cell:Pandora Tomorrow crashes to the desktop right away, in both multi-player and single player. Rainbow Six:Raven Shield will load and let me plan my action and set my team, as soon as I load into the action mode, the game may run for 10-20 seconds, even as long as a minute once then it crashes too. Sometimes to the desk-top other times the system resets completely. The second Painkiller demo is about the only game/demo I can get to run. It'll run fine for a little and then either reset the computer, or pull up the blue screen. Its due to these reasons why I think its memory related.

2) My second thought is power supply. I know this might seem sacrilegious to say that I'm not sure what kind or size of power supply I have in my computer. A 300W definatley, maybe a 350W. I'll have to look into it, and again the only reason I bring it up is because the problem is intermittent, or only consistently happens at the same time when the computer is under load(Game Playing)

Now I should also mention that I've gone in and changed the Dr. Watson setting's too. It used to be set that the computer would reset any time it ran into a serious error. Even with that setting taken off the computer still resets.I've reinstalled windows and no luck there. The installation goes smoothly, with not one hiccup, but the computer still crashes!

But before I go on I should give you a list of all the hardware in my computer.

Motherboard:      ASUS A7V333
CPU:            333-FSB Barton at 2.08Ghz
Video Card:      ATI Radeon 8500 128MB (Catalyst 4.4)
            (Have tried other Catalyst versions, no luck!)
RAM:            512Mb DDR-333(Samsung)
Sound:            Audigy Gamer
HDD:            30Gb Maxtor(7200 RPM)
OS:            Windows XP Pro, Service Pack 1

Now when I did the upgrade a family member of mine got my old parts. Would I be able to take back a stick of the DDR-266 and put it in with this board/CPU combo by clocking down the CPU so it works correctly? I mean I don't want to keep it this way but if I can do that and get the computer to work doing the things it used to do when it crashed says that its the RAM right?

Thanks again to everyone in advance for responding to this posting. This has to be the most frustrating upgrade I have ever done, I just want it running and everyone here has always helped in the past.
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Top Expert 2012
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Oh yeah that reminded me of something. When I get the BSOD I don't get a specific error. I used to get BSOD all the time before with my old CPU. The reason was because my CPU heatsink was going, and the CPU was overheating. Everytime it overheated I'd get the BSOD and an error. With this though it never seems to give me an error, but then again I'll check just to be sure.

As for the RAM, I downloaded Memtest and started running it yesterday. I'm lost when it comes to using it. I mean it was doing the tests, but I wasn't sure if it was passing or failing? Is there anything in particular I should be looking for with Memtest that will tell me the RAM is bad?

Thanks for the link too, I'm going to hold on to it even if it doens't help today!

Thanks again.
Top Expert 2012

If it fails, it will tell you it failed a particular test; otherwise, it keeps running in cycles.  Failure means bad RAM, passing means maybe good RAM, but to get around false pasitives, you need to use RAM that you know works.


I'll try the known good working RAM tonight, as soon as I figure out how to put it in with out frying it for setting the speed too high!

I should also mention I may have solved my problem too. It may also be my Motherboard. It appears the A7V333 does support the Barton Processors but only after a certain board revision. I'm going to look into that when I get off work too.

I'll keep you posted.
Yes, Barton support on the A7V333 is iffy.  I believe a PCB version of 2.01 or higher is neccessary.  If you want a solid Aus board to run one of the Barton cores, I suggest the A7N8X.  

If your PCB is not 2.01, that's your problem (the PCB # should be found on the board between the PCI slots).  If it is 2.01, I'm almost positive it's a bad DIMM.

Your problem is that the A7V333 does not support PC2700 modules larger than 256MB. Switch to modules of the correct size listed here at the bottom of the page:

It does support larger modules, it should even support 1gb modules - Judging by the fact that it says it support up th 3gb at the top of that page! Unless it has 12 memory slots then I'll guess that the 512mb modules should be okay. The memory on ASUSTeKs website is only 'recommended memory', it's not a list of every stick of memory that works with the board. Besides, the VIA Apollo KT333 chipset isn't the newest kid on the block, so that page must have been written a while ago.

Anyway, it sounds like your memory might be at fault. Go to this page:

Click on the second link from the top "Download Windows Memory Diagnostic".

Download the little program and get a blank floppy disk. When you run the program it will create a bootable floppy disk with a memory testing program on. Switch off your computer and remove the second stick of memory. Start it up and boot from the floppy disk (you may have to change the boot order in the BIOS, but I'm sure you know what to do).

When the program loads it will immediately start checking your memory in 'standard mode'. Any errors encountered will be displayed at the bottom.
If your memory passes the test without any errors then it's probably okay, but just to be safe you can press 'T' which will make it go into a more thorough mode (this takes a bit longer - I recommend leaving it overnight to do this one).

After the standard test is finished you can switch your PC off, swap the memory modules and repeat the test to check the other one.

*note* any number of errors is a problem! If your computer returns one thing when it was expecting another it will cause it to crash.

I hope this helps you out! :o)

You might also want to check the rating of your PSU, it should be written on a label on the side.

The important bits are the total power output in Watts(300, 350, 400, 460 etc..), and the amount of power in Amperes on the +12v line, the +5v line and the +3.3v line.

You might also want to consider upgrading your BIOS to the latest version. As you yourself said, one revision of your board (1.01) doesn't support Barton CPU's, but the other one only fully supports Bartons if you upgrade the BIOS.

This page has the latest BIOS for the 2.00 revision of your board:

It is unlikely that is it the BIOS though, as if it didn't support it, it would probably just refuse to boot (or identify it incorrectly).

Obviously, Nilnarf must not understand English, the board suports larger modules, just not PC2700. Use the correct memory for problem resolution.


How big is that PC2700 Module second from the bottom? Looks kinda like 512mb doesn't it. :o)

After looking up a few things I will admit that the board won't take 1GB PC2700 modules, only PC2100 ones. But it does take 512GB PC2700 modules fine.

I actually built an A7V333 based PC last year for a customer which used some cheap generic PC2700 memory. The dimm was 512mb big and it's still working fine as far as I know.


I wanted to thank everyone for their help with this question. I've split the points between Callandor & LucF because they both answered part of my questions. Callandor answered my question about underclocking the CPU and LucF was nice enough to give me the link about error codes. (Should help in the future!)

My problem was the motherboard, I have board Rev 1.04 and you need at least Rev 2.0 to support the Bartons. Looking at it now, I should consider myself lucky it worked at all.

Thanks again for everyones help.
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