You can get an enormous improvement with a new video card alone on that rig, perhaps an overclock on the CPU, depending on what the actual hardware is.
My P4 is a 2.4ghz model and it happily runs at 3ghz, but this will depend on your individual hardware. If you care to specify the mainboard and cpu model numbers, maybe I can tell you if it's a likely proposition.
The upgrade to a 6200 was an ill informed one, those cards were the el cheapo and severely crippled one in the range.
Your PC's problems could be anything to be honest, from an actual hardware fault to a virus.
The hardware needs to be configured in BIOS correctly, and if it performs fine after that, great. If not, then components can be tested individually by process of elimination. Most problems are configuration/software issues however, and re-installing windows from scratch is often the quickest cure. There are methods to make the re-install as painless as possible, probably the best and most useful is to buy another hard disk and set it up from scratch while retaining your current hard drive for backup and transfering all your data/FS9 files etc to the new one.
A new hard drive should be partitioned so that the disk can have Windows removed and re-installed at will without disturbing the rest of the data on the drive.
i was an owner of the same rig,a dell dimension 2400. it has no oerclocking, and only 3 PCI slots for expansion. no spots for cooling, and if i remember, you can't just pop out the fan... idk i sold it to a friend to build my own.
nor can you expand the hard drives. you need a second drive bay (and i had no luck finding one) so i just had my 2nd hard drive hanging on one side with 2 screws in the floppy space (my 2400 was BARE MINIMUM). really had to stretch the IDE for that to work.
BIOS offers no help, you cant control bus speeds from the BIOS. thats dell for ya.
I also find Lite-ON drives in my favor. I've a couple yamahas, wont make that mistake again. also had a pacific digital, nope. Lite-on, Right on! the only speciality of light scribe is it's light scribe technology (which i wanna see!)
a good Lite-on DVD
+RW drive which
burns and reads DVD+R, -R. +RW, -RW, RAM, Dual layer
burns and reads all CD formats.
Lite-ON 1635S (i believe there is a newer one now..)
$50. i've had it for a year, no problems yet!
hope that will help your search a bit!

Ramos
Last edited by legoalex2000 on Tue Apr 18, 2006 5:43 pm, edited 1 time in total.