Sorta-new laptop

My 4+ year old laptop was starting to show its age.... still ran great, but in spite of boosting the memory to max (2 GB), and replacing the original hard drive with a speedy 7200RPM Hitachi, the Athlon64-3200+ processor was game but falling behind the times. So, I spent a few hours browsing the forums, looking for info specifically related to my HP zv6000-family laptop. Like, info regarding processor upgrade possibilities. Found out that it could be upgraded to an Athlon64-3800+, no problem. So, I found a used processor online and ordered it. Then I found some more info. The 3200 and 3800 processors are both in the same "family", called Venice. That's why the ease of upgrade. However, this motherboard is supposed to support the 1st processor in the next family of AMD cpu's; San Diego 4000+. It has the same multiplier and core speed as the 3800, but bumps the L2 cache from 512k to 1MB. That's a major boost there! So, I ordered a 4000+ from some guy on eBay. I didn't notice he was in Hong Kong! So, anyhow, it's on its way, I should have it within the next week or so. But the 3800 arrived a few days ago, and was just sitting here. Last night, I had some time, and opened up the laptop, carefully. Got down to the cpu after an hour or so of painstakingly noting every screw and part removed. Installed the 3800, put everything back together, and would you believe, it fired up and ran just great, immediately! I'm typing this post on the laptop right now. I still intend to pop the 4000+ in when it arrives, and then enjoy this laptop for maybe a couple more years.......