Gentoo and Sempron 2800+ 64bits
I have recently bought an AMD Sempron 2800+ in an attempt to upgrade my current server (a poor Duron 700MHz). It’s my first 64bits processor so I started to research a little about compilation parameters, power management, etc.
First thing I had to do was upgrading the mobo’s (ASUS K8N4-E Deluxe) BIOS because it was a little messed up and also the processor wasn’t supported by the version shipped by ASUS. Once I did it I could start installing Gentoo Linux in a software RAID1, I downloaded amd64 version to have everything native in 64bits mode what at this moment has been possible cause all the ebuilds I needed have compiled without problems (I of course can’t talk about stability yet).
Looking at this Gentoo’s wiki page I figuered out the following flags for compiling packages:
CFLAGS="-O2 -pipe -mtune=athlon64"
CHOST="x86_64-pc-linux-gnu"
CXXFLAGS="${CFLAGS}"
So everything will compile in 64bits mode.
About temperature I have to say it is hot, it’s one of those in a box so I’m using the included fan packaged by the manufacturer which keeps the proc at 50C (a little lower than my old Athlon XP 2400+).
