AMD Athlon™ 64 3500+, 2.2 GHz (ADA3500BPBOX) Boxed Processor

Pros: Cool, Quiet, High performance, and hold stocks for 64 bit future
Cons: Nothing (comparatively with any other CPUs for this price)

I have use this subject in my barebone from Shuttle. Little case, so cool (I mean not hot) CPU is needed for operation quietly. I satisfied with Athlon 64 completely, it is strong enough and my funs remains surprisingly quiet. And it is work faster than even more expensive models from Pentium 4 product line

Pros: AMD literature says it will work real fast
Cons: No hardware compatibility.

I purchased this chip over a year ago with an ASUS A8V-E-Deluxe motherboard. To date, with the exception of an ATI video card, I've been unable to find any hardware drivers for even the most simple name-brand peripherals. For example, my HP 5590 scanner and HP LaserWriter are less that a year old. Still no 64 bit drivers. Only one manufacturer makes a SATA PCI-X controller card with 64 bit drivers & it's four times more expensive than the 32 bit equivalent. I've also been unable to locate a simple modem that will work with the chip and motherboard. In short, unless you’re a serious gamer or running linux on a server, the lack of compatible hardware and software render the chip useless for most uses. For the average user, there simply isn't enough hardware or software support to justify the additional expense. A year has gone by without any improvement. It will probably be at least another two years before a moderate level of 64 bit hardware and software support becomes available. Spend the money you save by avoiding the 64 bit chips on some good RAM instead.