Yes, technically you can but....
No I wouldn't just make that move yet.
I suggest that you don't try the 64-bit version stay with 32-bit.
And there a few things that you will need to do to have a capable machine to run Win7 but,
there are more things to do to have a optimal machine.
Nothing special, just a few upgrades to what you already have if not wanting to buy or build new.
1.) Your processor is now outdated old crap, since you want to keep that motherboard with S939, upgrade that processor to a faster S939 socket.
1a.) with a little technical info about your processor and BIOS go to -
Then update your BIOS to the latest version. Actually update BIOS first..!
2.) 3072MB of RAM is good for 32-bit, I suggest 4GB and not 3GB for 64-bit. Get one more anyways then think about 64-bit.
2a.) What type or should I say speed of the Crucial Tech memory.? Example, DDR2 PC2-4200 or PC2-5300 or what.?
I run 2x2GB sticks of memory to equal 4GB's of PC2-6400 @ 800MHZ, PC2-5300 @ 667MHZ was mostly the norm and even new then. Please verify.
3.) Radeon x700 video card, excellent card at the time,,,, not for Win7. Can't handle the advanced technology of today's graphics.
3a.) Since you like ATI, depending on your power supply shoot for something like an ATI HD 3000 or HD 4000 series.
If you have an AGP video card it might be harder for you to get new cards, there are a few but you might have to settle for a slightly older card.
1.) E521 - Athlon 64x2 6000+ (3.1) - Noctua NH-U9B - Artic Silver 5 - 4GB Elpida DDR2 PC2-6400 - nVidia GT 240 - Win7 x32
2.) Optiplex 740 ENHANCED - Athlon 64x2 5600+ (2.9) - Artic Silver 5 - 4GB Hynix DDR2 PC2-6400 - EVGA GeForce 8600GT - Win7 x32
3.) Optiplex 740 ENHANCED - Phenom X3 8750 (2.4) - Artic Silver 5 - 6GB Samsung PC2-6400 - xfx 8600GT oc - Win7 x64
07:26 PM by