Matt wrote: > I am upgrading a server that mounts in a rack. Its going on the > cheapest socket 775 CPU I can buy and in a 1u rack case. All its for > is keeping some log files and doing some simple MYSQL/PHP database > stuff. Not a work horse at all. Anyway, is it better to go 64bit or > 32bit for the CentOS 5.x install? I do not see needing huge amounts > of RAM or anything like that on this box. Would the 32bit version be > more tried, proven and stable? Go 64 bit. Databases tend to grow, even when you don't think they will. http://www.mysqlperformanceblog.com/2008/07/25/the-1-mistake-hosting-providers-make-for-mysql-servers/ Just my opinion.