blue-screen crash while booting into debug mode

Tommy do you know if this machine has a dedicated graphics card - a look inside the case will show you if it has not or if the graphics chip is an integrated APU one because I cannot find a driver for that one you quoted.

If you go to this site there is a button that says auto detect your GPU - hit that and see what comes up. see pics

Thanks Derek couldn't find that one out - something very similar but without the listings.

Ok mate now you seemed to have changed a lot of the main components but you didn't mention anything with the RAM then I am thinking it might be suspect and so if it were me I would run this RAM - Test with Memtest86+

Now this is the only memtest we advise to use and if you do it please remember the number of passes it makes has to be at least 8 any less and you may as well not bother. Of course if you get errors reasonably quickly then you can stop it but then you need to memtest each stick on it's own to find the bad stick - that is if you have more than one stick installed. It goes before saying finding a bad stick means replacing it. You may find that if you get errors with one stick and have two slots then you may have to test the stick in slot 2 because it occasionally happens that the slot is bad and therefore a motherboard issue.

I am saying this because I do not know what the RAM situation in your machine is and a quick search via the System info files I think has narrowed that machine to having four slots - am not sure and the reason it is important mate to at least give the machines model number if not full details - it makes life so much easier for us. For you info this is that machine - I think HP Support document - HP Support Center as you will see it has the four slots but as it was sold with a 32bit OS they would have only installed either a 4GB stick or a 2+1GB stick/s (unlikely) because they specify 3GB as installed in that site. Moreover there is a support tab in there for any drivers for that machine.

Back to the memtest in my pic it is the wrong version I know but it is just to give you an idea of what the test may look like.

Yes Tommy and you have it right it does take a long time - a good time is overnight mate.

Now in the meantime I would think about getting a 4GB stick and use it alone this would make sure the timings and frequencies are right and being made as one piece is going to be as matched as the chips can be. By chips I mean the small blocks you see on the stick itself.
RAM is really quite inexpensive these days (says me not knowing what your budget is) but a usual price for what you want unless you want to heavy game or something in which case 4GB is not going to let you game those heavy games you see that some run.

See this page and some are one stick modules some are matched pairs for not much at all the one stick preferable but tow sticks are still good - there are some two sticks 8GB sets and you could use just one because with your 32bit system 4GB typically 3.3GB are usable - but this is only if the memtest comes up with errors though again for my own liking I would rather have one stick than three


new desktop memory 1333, Desktop Memory, Memory, Components - Newegg.com

Edit did you know by the by your CPU supports a 64bit system?? worth keeping in mins because that means more RAM AMD Athlon 64 X2 5000+ - ADA5000IAA5CZ