Computer was running slow so we purchesd 1 gb of memory after this was installed the computer was haveing probloms, blue screen and shutdowns now the computer comes on but screen is black and wont even go to desktop.. Is this a operateing system problom or hard drive what can I do to fix this or at least troubleshoot it? thank you for your help with this matter...

Some blue screens are caused by Memory issues. First, perform a memory test on your PC to make sure the issue is not hardware related. Many BIOSes contain one that you can run easily from boot up.

If the memory test passes, you may be able to repair windows by pressing f8 repeatedly during boot up and choosing Known Good Configuration.

If you are still having issues after the first two solutions, you may need to use a restore point to restore your computer back to when it was working properly.

NO OS stated, Blues screens you mean the BSOD with the halt? statement on screen? i bet yes. (with words on blue screen)
words matter.....
Bought new memory or old?
no, (to supposed) yes, to , back to beginning done wrong or luck bad.
so put back the old RAM, does that work.?
or use just 1 stick of old ram. ? 1 by 1.
then repeat, new ram 1by1,
see? one stick is bad, if it all ran perfectly before you touched ram.
buying RAM for such and old PC is not easy.
step1:
first ASK HP, you asked now at yahoo, why here, and not HP>?
but HP long long ago retired the A series.
per HP pages. here
https://support.hp.com/us-en/retired-products
personally I do go the used PC store and buy $20 PC vastly newer.
sure would, but lets follow the rules for yours, step by step
step 2, (1 was hp , no support)
next is to lean what Memory was uses and what the processor spec is on the same,
the mobo is 2005 era. (as old as) 12 years ago...
its not Intel, its Athlon 64 (S) 3800+ 2.4 GHz
if it was intel , the intel chip drives the memory with its MMC
its not.
ASUS made this mobo by HP contract.A8AE-LE
hp name is: AmberineM-GL6E
max mem
4 GB* (4 x 1 GB) requires the replacement of the installed 512 MB DIMMs
PC-3200 MB/sec , speed ( not slower !) faster ok.
184 pin, DDR SDRAM
Dual-channel memory architecture
4 x 184-pin DDR DIMM sockets support unbuffered non-ECC 4 GB 400/300 MHZ DDR memory modules

page 7 is sparse in your manual.
https://www.manualslib.com/manual/721818/Asus-A8ae-Le.html?page=7#manual


the Athalon 64 has an ON DIE mmc, memory controller
this sets the base limits of all possible memory.
the memory speed is not by FSB, speeds
simpler terms, the memory is always running at a set fraction of the CPU speed
this chip has the advantage for running , cleaner DDR signals.
that other FSB designs.
what that means , to the user more memory choices.


I see this maker selling memory , a top maker,
http://www.crucial.com/usa/en/compatible-upgrade-for/HP-Compaq/pavilion-a1330n-series

test the sticks all 1 by 1,,, one good way to test it is run fast games.

DDR stick density rules and numbers and types of memory pre stick and pre side can cause problems on old processors.
I could not find the Athalon 64 rules on this, AMD can tell you at there site but im too lazy to look it up..
best is to let Crucial or Kingston guy you , here. for SURE>

Test your PSU or replace it if your power supply units fan is not working your PSU is faulty

One bad lead can cause a computer to continue on a cycle or to shutdown or fail to detect/ boot up a computer hard drive

Test all leads that attach to your hard drive including electrical extensions,IDE,SATA

the leads from your "((motherboard to your hard drive))" make sure they have a secure connection and are not faulty or just replace them they could be faulty
make sure all leads that are attached to your drives dvd\cd 3 1/2 inch floppy have secure connections and are not faulty even the electrical extensions or just replace them they could be faulty a computer needs its connections to continue its cycle and have an end so any faulty leads will end up with a computer error hope this helps

yes one will be for single channel ram the other for daul channel ram.if you have the acer owners manual it will tell witch ones are single and witch one is daul.

Have you removed the memory you added and tried to boot.
If you now have 2 memory sticks have you tried each 1 on there own.
Your manual says you can fit 4gb max installed as 2x2gb ddr533 or ddr667.
Sometimes you do get a bad stick of memory

What is your current memory?

As it is a 32 bit processor, it will support maximum of 4GB.


-rate if it helped you.

Running slowly could be a lot of things. It could be you don't have enough physical memory (RAM) in your computer to do what you want. Less than 1 or 2 GB might be seen as slow. If you really want to reinstall Windows, back up all the files you want to save to someplace else, like an external hard drive or thumb drive. You will have to reinstall all your programs (Office, etc) after you reinstall Windows. Take the CD copy of Windows that came with your computer and boot your computer to that. You may have to change the boot order by entering Setup (usually by pressing F2 when it starts). Make sure the CD drive is first in Boot Order. When you boot to the CD follow the instructions for installing Windows in the screens which follow. Delete any existing partitions and install it on a clean partition.
Good luck!

More memory the better. Find out what the max is and put it in. 1 Gb is enough to run Xp (Min 2Gb for Vista).
There a few other things that slow your computer the way you described.

1. You need memory on the hard drive that your Operating system is on. I would say 25% or more.
2. Clear your temporary Internet,cookies and cache from you web browser (IE, FireFox, Opera, Ect)
3. To many thing running in the background, if you are comfortable with computers (you can use "msconfig" to turn extra programs off)
   
4. Defrag your hard drives
5. As much memory as you can will always help.

I hope this helps.

Slow computer can also cause by alot of software install on your system that is using the resources of your computer like the Memory and Processor, so first thing you can do is to remove some unneeded software that you have on your computer and then after that try also running a scan on yuour computer with a good anti virus and anti malware because can also slow your computer down...

may be this is an attack by some harmful viruses . i too experienced blue screens due to virus attack . downlaod avast proffesionl edition and install it (latest version availabel on katz.cd ) and scan computer at boot time ( avast only provides boot up scan ). otherwisw think of installing a fresh copy