To hyper-thread or not to hyper-thread

[Tom Horsley]

On Mon, 07 Dec 2009 09:02:09 -0600
Aaron Konstam wrote:

> A little more
> looking and I noticed that hyper-threading was disabled in the BIOS and
> could not be turned on.

Does that mean there is no BIOS option to turn it on, or that attempting
to turn it on in the BIOS doesn't work? I've run across at least
one machine where merely setting options for certain things in
the BIOS wasn't good enough - you also had to power cycle the machine
for the new setting to take effect.