850
Core 2 Ruleo
(files.catbox.moe)
Be sure to follow the rule before you head out.
Rule: You must post before you leave.
5400 rpm was very common. 7200 were the performance drives.
As I remember around 2007, 5400 RPM was frowned upon in builds.
The disks I have from that time is a WD RE2 (very noisy 7200 RPM) and a few WD Green's (I think they are slower than 5400 RPM just to mess with my arguments).
And if you wanted very high performance, you could go with a 10000rpm one.