Monthly Archives: January 2015

Automatically reduce/scale CPU frequency in Linux

I have recently been converting my old computer into a webserver and leaving it switched on in my lounge. After the constantly whirring cooling fan started to bother me, I looked at reducing the CPU frequency in order to reduce heat production (and power consumption).

A bit of research led me to try and install CPUSPEED. However I when I tried to install via yum, I kept the getting package not available error.

I have since found the CPUPOWER package:

yum install cpupower
# cpupower --help
Usage:	cpupower [-d|--debug] [-c|--cpu cpulist ]  []
Supported commands are:
	frequency-info
	frequency-set
	idle-info
	idle-set
	set
	info
	monitor
	help

Not all commands can make use of the -c cpulist option.

Use 'cpupower help ' for getting help for above commands.

This is clearly very powerful for controlling the CPU. Enjoy the help file to find the answer, or for automatic control:

--cpu all frequency-set --governor ondemand

How to track a Dell/Alienware delivery via WUK and Syncreon

I recently ordered a new laptop via Dell. After it was dispatched, I was given tracking information for WUK which gave me the following error:

“The Order Number entered did not match the Customer Number”

How did I solve it?

I had an 8 digit order number and added a 0 to the beginning to make it 9 digits long. My customer number consisted of GB1 followed by 7 more numbers. Replace the GB1 with 02 and it should work.