Ok I have a Sempron 2200+, Chaintech 7NJL3, and FX-5200 Ultra. Now I know some of this stuff is still good and worth some money. What I need to know is an upgrade for my friends old part worth $150 for the preformance siffrnce. They are XP 2600 Barton, Gigabyte nForce 2 400, FX 5900XT

Socket A is now obsolete and the performance gains between the two setups would be limited IMHO, it is time to bite the bullet, Sempron 64 are good value, though you would need to save up extra for a graphics card.

A Sepron64 754 is only $65:
http://www.newegg.com/Product/Product.asp?Item=N82E16819104249

A MoBo is $50:
http://www.newegg.com/Product/Product.asp?Item=N82E16813152039

Memory 512MB DDR400 (PC3200) $50

What you see is what you get, and what you get is what you see!

I wouldn't say the socket A format is obsolete (yet), but I do agree that for $150, you're money would be better spent on a S754 setup. I'd do it a little different than above though. The nForce3 250 chipset is a better than the VIA & the Sempron64 2800+ has 256k L2 cache, compared to the 2600+ which only has 128k. Although PC3200 RAM would be better, you could still use your PC2700.

http://www.newegg.com/Product/Product.asp?Item=N82E16819104245

http://www.newegg.com/Product/Product.asp?Item=N82E16813128259

And the Gigabyte board is fully overclockable:

- CPU FSB / Vcore Voltage adjustable via BIOS
- AGP Voltage / Clock adjustable via BIOS
- DIMM Voltage / Clock adjustable via BIOS

http://us.giga-byte.com/MotherBoard/Products/Products_Spec_GA-K8NS.htm

ASUS A7N8X-X
Athlon XP 1800+
8.5 x 200MHz
1024MB PC3200 2.5-3-3-7
Asus A9550GE/TD 128MB
WinME/WinXP Pro SP1

This is only a temporay hold over actully for me. I've set aside about 1000 dollars so far, i need about 3000 to build my PC that im after, its just this sempron is fried, and crashes after time. I have tested it and its full of problems.