Fan running a lot more

I have a black Macbook with 2.4ghz core 2 duo that I have upgraded to 6gb ram and 640gb hard disk.
Also have upgraded to latest Lion 10.7. A couple of months ago I installed Parallels v7.0 and Windows XP to do some custom database development, i.e. not a lot of graphics. When looking at the Activity Monitor, it is always Parallels sucking most of the processor. For example right now, 55% idle 37% system 8% user. Fan seems to be running about 1/2 speed, CPU core 1 61c, Core 2 63c. I am almost always using a second monitor.
I am now noticing that the fan runs a lot more now than it ever has before. Usually running all the time I have Parallels running, but not at full speed. I also notice more when watching Hulu natively in Safari, that I didn't notice the fan running before. The computer is always on a hard flat surface.
Fortunately, everything runs fine all day long at the office and I don't seem to have any problems overheating. My old Macbook is a little sluggish, but am overall satisfied with the speed. My question is mainly if I am asking for problems long term running like this? Should I consider upgrading to a new model? Is there something that can be cleaned or blown out with air? I struggle with the thought of spending $1,200 for a new laptop with the same clock rate and smaller hard disk and memory. Yes, I know the memory is faster, but will the overall performance be that much better?
Thanks for the opinions.

Im having the same problem as well the fan shuts off for a few then starts right back up i though it was when i ran logic pro that it only did that but now im noticing it happening more often if anyone can help that would be great thanks....

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Installed SSD, now the fan runs a lot- what can I do?

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Before doing an Archive and Install as MGW suggested, I would try the following first:
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Please see this article:
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I have had my macbook for about a year now. I use it in the same place really all the time for the same purposes. However recently in the last few weeks the fan comes on a lot more and seems to get hotter quicker than usual. Is there a cause for concern or any remedies?
Ed
Message was edited by: EdSW

Hi Ed....I wonder if you have a stuck/runaway process ramping up the CPU usage and causing the fan to work overtime...
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Running two (or more) conky's

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O.K. tried that, but now it's flickering back and forth between the two conky's here are my two .conkyrc files:
# conky configuration
# edited by [email protected]
# set to yes if you want Conky to be forked in the background
background no
# X font when Xft is disabled, you can pick one with program xfontsel
#font 5x7
#font 6x10
#font 7x13
#font 8x13
#font 9x15
#font *mintsmild.se*
#font -*-*-*-*-*-*-34-*-*-*-*-*-*-*
# Use Xft?
use_xft yes
# Xft font when Xft is enabled
#xftfont Bitstream Vera Sans Mono:size=8
xftfont Terminus:size=8
# Text alpha when using Xft
xftalpha 0.8
# Print everything to console?
# out_to_console no
# mail spool
#mail_spool $MAIL
# Update interval in seconds
update_interval 2.0
# This is the number of times Conky will update before quitting.
# Set to zero to run forever.
total_run_times 0
# Create own window instead of using desktop (required in nautilus)
own_window no
# Use double buffering (reduces flicker, may not work for everyone)
double_buffer yes
# Minimum size of text area
minimum_size 1000 5
# Draw shades?
draw_shades yes
# Draw outlines?
draw_outline no
# Draw borders around text
draw_borders no
# Stippled borders?
stippled_borders 8
# border margins
border_margin 4
# border width
border_width 1
# Default colors and also border colors
default_color white
default_shade_color black
default_outline_color white
# Text alignment, other possible values are commented
alignment top_left
#alignment top_right
#alignment bottom_left
#alignment bottom_right
# Gap between borders of screen and text
# same thing as passing -x at command line
gap_x 875
gap_y 4
# Subtract file system buffers from used memory?
no_buffers yes
# set to yes if you want all text to be in uppercase
uppercase no
# number of cpu samples to average
# set to 1 to disable averaging
cpu_avg_samples 2
# number of net samples to average
# set to 1 to disable averaging
net_avg_samples 2
# Force UTF8? note that UTF8 support required XFT
override_utf8_locale no
# Add spaces to keep things from moving about? This only affects certain objects.
use_spacer yes
#Note: doesn't work in conky 1.2 =(
# mldonkey_hostname Hostname for mldonkey stuff, defaults to localhost
# mldonkey_port Mldonkey port, 4001 default
# mldonkey_login Mldonkey login, default none
# mldonkey_password Mldonkey password, default none
# Possible variables to be used:
# Variable Arguments Description
# addr (interface) IP address for an interface
# acpiacadapter ACPI ac adapter state.
# acpifan ACPI fan state
# acpitemp ACPI temperature.
# adt746xcpu CPU temperature from therm_adt746x
# adt746xfan Fan speed from therm_adt746x
# alignr (num) Right-justify text, with space of N
# alignc Align text to centre
# battery (num) Remaining capasity in ACPI or APM
# battery. ACPI battery number can be
# given as argument (default is BAT0).
# buffers Amount of memory buffered
# cached Amount of memory cached
# color (color) Change drawing color to color
# cpu CPU usage in percents
# cpubar (height) Bar that shows CPU usage, height is
# bar's height in pixels
# cpugraph (height),(width) (gradient colour 1) (gradient colour 2)
# CPU usage graph, with optional colours in hex,
# minus the #.
# downspeed net Download speed in kilobytes
# downspeedf net Download speed in kilobytes with one
# decimal
# downspeedgraph net (height),(width) (gradient colour 1) (gradient colour 2)
# Download speed graph, colours defined in
# hex, minus the #.
# exec shell command Executes a shell command and displays
# the output in conky. warning: this
# takes a lot more resources than other
# variables. I'd recommend coding wanted
# behaviour in C and posting a patch :-).
# execbar shell command Same as exec, except if the first value
# return is a value between 0-100, it
# will use that number for a bar.
# The size for the bar is currently fixed,
# but that may change in the future.
# execgraph shell command Same as execbar, but graphs values
# execi interval, shell command
# Same as exec but with specific interval.
# Interval can't be less than
# update_interval in configuration.
# font font Specify a different font. Only applies
# to one line.
# fs_bar (height), (fs)Bar that shows how much space is used on
# a file system. height is the height in
# pixels. fs is any file on that file
# system.
# fs_free (fs) Free space on a file system available
# for users.
# fs_free_perc (fs) Free percentage of space on a file
# system available for users.
# fs_size (fs) File system size
# fs_used (fs) File system used space
# hr (height) Horizontal line, height is the height in
# pixels
# i2c (dev), type, n I2C sensor from sysfs (Linux 2.6). dev
# may be omitted if you have only one I2C
# device. type is either in (or vol)
# meaning voltage, fan meaning fan or
# temp/tempf (first in C, second in F)
# meaning temperature. n is number of the
# sensor. See /sys/bus/i2c/devices/ on
# your local computer.
# if_running (process) if PROCESS is running, display
# everything if_running and the matching $endif
# if_existing (file) if FILE exists, display everything between
# if_existing and the matching $endif
# if_mounted (mountpoint) if MOUNTPOINT is mounted, display everything between
# if_mounted and the matching $endif
# else Text to show if any of the above are not true
# kernel Kernel version
# linkstatus (interface) Get the link status for wireless connections
# loadavg (1), (2), (3) System load average, 1 is for past 1
# minute, 2 for past 5 minutes and 3 for
# past 15 minutes.
# machine Machine, i686 for example
# mails Mail count in mail spool. You can use
# program like fetchmail to get mails from
# some server using your favourite
# protocol. See also new_mails.
# mem Amount of memory in use
# membar (height) Bar that shows amount of memory in use
# memmax Total amount of memory
# memperc Percentage of memory in use
# metar_ob_time
# metar_temp
# metar_tempf Temp in F
# metar_windchill
# metar_dew_point There are a bunch of these
# metar_rh and they are self-explanatory
# metar_windspeed
# metar_winddir
# metar_swinddir
# metar_cloud
# metar_u2d_time
# ml_upload_counter total session upload in mb
# ml_download_counter total session download in mb
# ml_nshared_files number of shared files
# ml_shared_counter total session shared in mb, buggy
# in some mldonkey versions
# ml_tcp_upload_rate tcp upload rate in kb/s
# ml_tcp_download_rate tcp download rate in kb/s
# ml_udp_upload_rate udp upload rate in kb/s
# ml_udp_download_rate udp download rate in kb/s
# ml_ndownloaded_files number of completed files
# ml_ndownloading_files number of downloading files
# mpd_artist Artist in current MPD song
# (must be enabled at compile)
# mpd_album Album in current MPD song
# mpd_bar (height) Bar of mpd's progress
# mpd_bitrate Bitrate of current song
# mpd_status Playing, stopped, et cetera.
# mpd_title Title of current MPD song
# mpd_vol MPD's volume
# mpd_elapsed Song's elapsed time
# mpd_length Song's length
# mpd_percent Percent of song's progress
# new_mails Unread mail count in mail spool.
# nodename Hostname
# outlinecolor (color) Change outline color
# pre_exec shell command Executes a shell command one time before
# conky displays anything and puts output
# as text.
# processes Total processes (sleeping and running)
# running_processes Running processes (not sleeping),
# requires Linux 2.6
# shadecolor (color) Change shading color
# stippled_hr (space), Stippled (dashed) horizontal line
# (height)
# swapbar (height) Bar that shows amount of swap in use
# swap Amount of swap in use
# swapmax Total amount of swap
# swapperc Percentage of swap in use
# sysname System name, Linux for example
# offset pixels Move text over by N pixels
# tail logfile, lines (interval)
# Displays last N lines of supplied text
# text file. If interval is not supplied,
# Conky assumes 2x Conky's interval.
# Max of 30 lines.
# Max of 30 lines can be displayed.
# time (format) Local time, see man strftime to get more
# information about format
# totaldown net Total download, overflows at 4 GB on
# Linux with 32-bit arch and there doesn't
# seem to be a way to know how many times
# it has already done that before conky
# has started.
# top type, num This takes arguments in the form:
# top <name> <number>
# Basically, processes are ranked from
# highest to lowest in terms of cpu
# usage, which is what <num> represents.
# The types are: "name", "pid", "cpu", and
# "mem".
# There can be a max of 10 processes listed.
# top_mem type, num Same as top, except sorted by mem usage
# instead of cpu
# totalup net Total upload, this one too, may overflow
# updates Number of updates (for debugging)
# upspeed net Upload speed in kilobytes
# upspeedf net Upload speed in kilobytes with one
# decimal
# upspeedgraph net (height),(width) (gradient colour 1) (gradient colour 2)
# Upload speed graph, colours defined in
# hex, minus the #.
# uptime Uptime
# uptime_short Uptime in a shorter format
# seti_prog Seti@home current progress
# seti_progbar (height) Seti@home current progress bar
# seti_credit Seti@hoome total user credit
# variable is given either in format $variable or in ${variable}. Latter
# allows characters right after the variable and must be used in network
# stuff because of an argument
# stuff after 'TEXT' will be formatted on screen
TEXT
${offset 240}${color slate grey}${time %a, } ${color }${time %e %B %G}
${offset 240}${color slate grey}${time %Z, }${color }${time %H:%M:%S}
${offset 240}${color slate grey}UpTime: ${color }$uptime
${offset 240}${color slate grey}Kern:${color }$kernel
${offset 240}${color slate grey}CPU:${color } $cpu% ${acpitemp}C
${offset 240}${cpugraph 20,130 000000 ffffff}
${offset 240}${color slate grey}Load: ${color }$loadavg
${offset 240}${color slate grey}Processes: ${color }$processes
${offset 240}${color slate grey}Running: ${color }$running_processes
${offset 240}${color slate grey}Highest CPU:
${offset 240}${color #ddaa00} ${top name 1}${top_mem cpu 1}
${offset 240}${color lightgrey} ${top name 2}${top cpu 2}
${offset 240}${color lightgrey} ${top name 3}${top cpu 3}
${offset 240}${color lightgrey} ${top name 4}${top cpu 4}
${offset 240}${color slate grey}Highest MEM:
${offset 240}${color #ddaa00} ${top_mem name 1}${top_mem mem 1}
${offset 240}${color lightgrey} ${top_mem name 2}${top_mem mem 2}
${offset 240}${color lightgrey} ${top_mem name 3}${top_mem mem 3}
${offset 240}${color lightgrey} ${top_mem name 4}${top_mem mem 4}
${offset 240}${color slate grey}MEM: ${color } $memperc% $mem/$memmax
${offset 240}${membar 3,100}
${offset 240}${color slate grey}SWAP: ${color }$swapperc% $swap/$swapmax
${offset 240}${swapbar 3,100}
${offset 240}${color slate grey}ROOT: ${color }${fs_free /}/${fs_size /}
${offset 240}${fs_bar 3,100 /}
${offset 240}${color slate grey}HOME: ${color }${fs_free /home}/${fs_size /home}
${offset 240}${fs_bar 3,100 /home}
${offset 240}${color slate grey}NET:
${offset 240}${color}Up: ${color }${upspeed wlan0} k/s
${offset 240}${upspeedgraph wlan0 20,130 000000 ffffff}
${offset 240}${color}Down: ${color }${downspeed wlan0}k/s${color}
${offset 240}${downspeedgraph eth0 20,130 000000 ffffff}
# conky configuration
# edited by [email protected]
# set to yes if you want Conky to be forked in the background
background no
# X font when Xft is disabled, you can pick one with program xfontsel
#font 5x7
#font 6x10
#font 7x13
#font 8x13
#font 9x15
#font *mintsmild.se*
#font -*-*-*-*-*-*-34-*-*-*-*-*-*-*
# Use Xft?
use_xft yes
# Xft font when Xft is enabled
#xftfont Bitstream Vera Sans Mono:size=8
xftfont Terminus:size=8
# Text alpha when using Xft
xftalpha 0.8
# Print everything to console?
# out_to_console no
# mail spool
#mail_spool $MAIL
# Update interval in seconds
update_interval 2.0
# This is the number of times Conky will update before quitting.
# Set to zero to run forever.
total_run_times 0
# Create own window instead of using desktop (required in nautilus)
own_window no
# Use double buffering (reduces flicker, may not work for everyone)
double_buffer yes
# Minimum size of text area
minimum_size 1000 5
# Draw shades?
draw_shades yes
# Draw outlines?
draw_outline no
# Draw borders around text
draw_borders no
# Stippled borders?
stippled_borders 8
# border margins
border_margin 4
# border width
border_width 1
# Default colors and also border colors
default_color white
default_shade_color black
default_outline_color white
# Text alignment, other possible values are commented
alignment top_left
#alignment top_right
#alignment bottom_left
#alignment bottom_right
# Gap between borders of screen and text
# same thing as passing -x at command line
gap_x 5
gap_y 500
# Subtract file system buffers from used memory?
no_buffers yes
# set to yes if you want all text to be in uppercase
uppercase no
# number of cpu samples to average
# set to 1 to disable averaging
cpu_avg_samples 2
# number of net samples to average
# set to 1 to disable averaging
net_avg_samples 2
# Force UTF8? note that UTF8 support required XFT
override_utf8_locale no
# Add spaces to keep things from moving about? This only affects certain objects.
use_spacer yes
#Note: doesn't work in conky 1.2 =(
# mldonkey_hostname Hostname for mldonkey stuff, defaults to localhost
# mldonkey_port Mldonkey port, 4001 default
# mldonkey_login Mldonkey login, default none
# mldonkey_password Mldonkey password, default none
# Possible variables to be used:
# Variable Arguments Description
# addr (interface) IP address for an interface
# acpiacadapter ACPI ac adapter state.
# acpifan ACPI fan state
# acpitemp ACPI temperature.
# adt746xcpu CPU temperature from therm_adt746x
# adt746xfan Fan speed from therm_adt746x
# alignr (num) Right-justify text, with space of N
# alignc Align text to centre
# battery (num) Remaining capasity in ACPI or APM
# battery. ACPI battery number can be
# given as argument (default is BAT0).
# buffers Amount of memory buffered
# cached Amount of memory cached
# color (color) Change drawing color to color
# cpu CPU usage in percents
# cpubar (height) Bar that shows CPU usage, height is
# bar's height in pixels
# cpugraph (height),(width) (gradient colour 1) (gradient colour 2)
# CPU usage graph, with optional colours in hex,
# minus the #.
# downspeed net Download speed in kilobytes
# downspeedf net Download speed in kilobytes with one
# decimal
# downspeedgraph net (height),(width) (gradient colour 1) (gradient colour 2)
# Download speed graph, colours defined in
# hex, minus the #.
# exec shell command Executes a shell command and displays
# the output in conky. warning: this
# takes a lot more resources than other
# variables. I'd recommend coding wanted
# behaviour in C and posting a patch :-).
# execbar shell command Same as exec, except if the first value
# return is a value between 0-100, it
# will use that number for a bar.
# The size for the bar is currently fixed,
# but that may change in the future.
# execgraph shell command Same as execbar, but graphs values
# execi interval, shell command
# Same as exec but with specific interval.
# Interval can't be less than
# update_interval in configuration.
# font font Specify a different font. Only applies
# to one line.
# fs_bar (height), (fs)Bar that shows how much space is used on
# a file system. height is the height in
# pixels. fs is any file on that file
# system.
# fs_free (fs) Free space on a file system available
# for users.
# fs_free_perc (fs) Free percentage of space on a file
# system available for users.
# fs_size (fs) File system size
# fs_used (fs) File system used space
# hr (height) Horizontal line, height is the height in
# pixels
# i2c (dev), type, n I2C sensor from sysfs (Linux 2.6). dev
# may be omitted if you have only one I2C
# device. type is either in (or vol)
# meaning voltage, fan meaning fan or
# temp/tempf (first in C, second in F)
# meaning temperature. n is number of the
# sensor. See /sys/bus/i2c/devices/ on
# your local computer.
# if_running (process) if PROCESS is running, display
# everything if_running and the matching $endif
# if_existing (file) if FILE exists, display everything between
# if_existing and the matching $endif
# if_mounted (mountpoint) if MOUNTPOINT is mounted, display everything between
# if_mounted and the matching $endif
# else Text to show if any of the above are not true
# kernel Kernel version
# linkstatus (interface) Get the link status for wireless connections
# loadavg (1), (2), (3) System load average, 1 is for past 1
# minute, 2 for past 5 minutes and 3 for
# past 15 minutes.
# machine Machine, i686 for example
# mails Mail count in mail spool. You can use
# program like fetchmail to get mails from
# some server using your favourite
# protocol. See also new_mails.
# mem Amount of memory in use
# membar (height) Bar that shows amount of memory in use
# memmax Total amount of memory
# memperc Percentage of memory in use
# metar_ob_time
# metar_temp
# metar_tempf Temp in F
# metar_windchill
# metar_dew_point There are a bunch of these
# metar_rh and they are self-explanatory
# metar_windspeed
# metar_winddir
# metar_swinddir
# metar_cloud
# metar_u2d_time
# ml_upload_counter total session upload in mb
# ml_download_counter total session download in mb
# ml_nshared_files number of shared files
# ml_shared_counter total session shared in mb, buggy
# in some mldonkey versions
# ml_tcp_upload_rate tcp upload rate in kb/s
# ml_tcp_download_rate tcp download rate in kb/s
# ml_udp_upload_rate udp upload rate in kb/s
# ml_udp_download_rate udp download rate in kb/s
# ml_ndownloaded_files number of completed files
# ml_ndownloading_files number of downloading files
# mpd_artist Artist in current MPD song
# (must be enabled at compile)
# mpd_album Album in current MPD song
# mpd_bar (height) Bar of mpd's progress
# mpd_bitrate Bitrate of current song
# mpd_status Playing, stopped, et cetera.
# mpd_title Title of current MPD song
# mpd_vol MPD's volume
# mpd_elapsed Song's elapsed time
# mpd_length Song's length
# mpd_percent Percent of song's progress
# new_mails Unread mail count in mail spool.
# nodename Hostname
# outlinecolor (color) Change outline color
# pre_exec shell command Executes a shell command one time before
# conky displays anything and puts output
# as text.
# processes Total processes (sleeping and running)
# running_processes Running processes (not sleeping),
# requires Linux 2.6
# shadecolor (color) Change shading color
# stippled_hr (space), Stippled (dashed) horizontal line
# (height)
# swapbar (height) Bar that shows amount of swap in use
# swap Amount of swap in use
# swapmax Total amount of swap
# swapperc Percentage of swap in use
# sysname System name, Linux for example
# offset pixels Move text over by N pixels
# tail logfile, lines (interval)
# Displays last N lines of supplied text
# text file. If interval is not supplied,
# Conky assumes 2x Conky's interval.
# Max of 30 lines.
# Max of 30 lines can be displayed.
# time (format) Local time, see man strftime to get more
# information about format
# totaldown net Total download, overflows at 4 GB on
# Linux with 32-bit arch and there doesn't
# seem to be a way to know how many times
# it has already done that before conky
# has started.
# top type, num This takes arguments in the form:
# top <name> <number>
# Basically, processes are ranked from
# highest to lowest in terms of cpu
# usage, which is what <num> represents.
# The types are: "name", "pid", "cpu", and
# "mem".
# There can be a max of 10 processes listed.
# top_mem type, num Same as top, except sorted by mem usage
# instead of cpu
# totalup net Total upload, this one too, may overflow
# updates Number of updates (for debugging)
# upspeed net Upload speed in kilobytes
# upspeedf net Upload speed in kilobytes with one
# decimal
# upspeedgraph net (height),(width) (gradient colour 1) (gradient colour 2)
# Upload speed graph, colours defined in
# hex, minus the #.
# uptime Uptime
# uptime_short Uptime in a shorter format
# seti_prog Seti@home current progress
# seti_progbar (height) Seti@home current progress bar
# seti_credit Seti@hoome total user credit
# variable is given either in format $variable or in ${variable}. Latter
# allows characters right after the variable and must be used in network
# stuff because of an argument
# stuff after 'TEXT' will be formatted on screen
TEXT
${color slate grey}/var/log/messages:
${color}${exec tail -n20 /var/log/messages.log}
how can this be fixed?

Ram upgrade to 2GB - fan running faster

I have just upgraded my intel mac mini from 512 MB to 2 GB using a kingston upgrade kit (KTA-MB667K2/2G).
The system is performing a lot better but there is an annoying "trouble": when 2 GB are installed the fan is running more fast and more often then with 512MB.
During my tests, I have see that while using OS X the system is able to regulate the speed, it goes from very slow to very fast but it moves to fast more often then before and the system is definetly making more noise.
The bigger problem happens when booting using windows XP: when 2 GB of RAM are installed the fan is always running at top speed or near to top speed.
That is not happening while using the original 512 MB.
I have tried to reset the SMC by using the apple istructions here:
http://docs.info.apple.com/article.html?artnum=303446
but it didn't make any difference.
I have double checked all wires,I have switched from 512MB to 2 GB and from 2 GB to 512MB three times(!) but nothing has changed:
- when using 512MB fan runs slow;
- when using 2 GB fan is still able to change speed but is running fast more often.
Further more, to test, I have also left disconnected the fan speed cable in the front side, and in such way the fun starts at max speed and runs at fast speed all the time. So it is not a trouble with such connection.
Is that normal this behavior?
Does anybody have noticed any fan speed difference after RAM upgrade?
About BootCamp and XP running fan at max speed, could be that reinstall them could solve the "always on" fan trouble with 2 GB?
Thanks a lot for any help.

I have some updates about the problem.
I was thinking that it was a my fault about some missing setup needed when installing more ram to mac mini.
So, today, I have moved to a local apple center and I have asked them to install the RAM for me... they do, and it happens the same thing: the fun was running very fast quite often under OS X and was always fast under bootcamp-XP.
I have asked them why this happens and if that was normal, but they have no other mac mini with such amount of ram and they never see it before. They suggest me to test it for a week and eventually to give them the mac for a day to make some hardware tests.
Later, back into my office, the noise was too high and too annoying so I have called again apple to explain the situation.
They told me that they have no reports about similar problems, that it should not make more noise when adding RAM. They suggest me to try remove and reinstall better the RAMs or to try different RAMs (I am using kingston kit KTA-MB667K2/2G).
So I have also phoned to kingston support, and they say that it is a strange bahavior, that they don't have reports about that too. They are now investigating the problem and they let me know something in next days.
They also put to my attention the fact that the computer is able to see and work well with the 2GB memory, so the memory is working correctly. They think this is something related to apple hardware/firmware and could be that apple should fix it in next realases.
Unfortunatly, all this new infos and all the time lost for a "simple" memory upgrade didn't solve my troubles and I still cannot use the mac like I need.
So I have continued my tests by changing the kensington Dimms with other 2 GB dimms by Nanya technologies that were installed on my centrino duo notebook.
Mac mini was able to see and work well with them too, now the fun speed is a little bit slowly then using kingston ones but still more fast than with 512MB.
Bootcamp-XP is still not usable due to high fan speed and the high noise. OS X seems to control better the fan speed but it goes high there too for any little thing you do.
So I have made one more test suggested by kingston:
I have started mac mini while only one kingston dimm were inside.
In this way the mac mini was making some less noise that using the two nanya dimms, but it was still to high.
The last test I made was to check the cpu temperature with different amounts of RAM and results were interesting.
Using OS X with 512MB, the cpu temperature is about 33 C while iddle; if I try to start parallels desktop with guest windows XP, temperature goes up to 40 C and the fan is still running at quite low levels.
Instead, while 1 GB of RAM was installed, cpu iddle temperature was 35 C and starting parallels desktop will result in temperature levels till 50 C.
So there was a difference of about 10 C.
While doing these test I have left the mac mini open, so once stopped, I was able to quickly feel the RAM temperature with my finger and it was quite hot.
I didn't try temperature with both 2GB dimms, but I belive it will be surely more high.
So what I am thinking now is that probably apple is aware about higher temperature inside when using more RAM, so the bios starts the mac mini with the fun running faster because it detects the 2 GB memory.
OS X is able to control someway the fun so it is not always running fast (but quite often) while using boot camp with XP becomes impossible due to the fan always at max speed.
I don't think apple's rams could work at lower temperature than kingston ones, so the dubt now is that things are correct in this way.. so intel mac mini with 1/2GB could be a shame due to high level of fan noise... or... my mac mini has something wrong.
Is anybody here with a mac mini and 2 GB of RAM?
Anybody could make some test about that?
Thanks a lot for any help

Macbook Pro Fans Running At High Speed

My MBP 17" CoreDuo 2.16ghz came back from having the Logic Board replaced at the weekend. All is well except that now the fans run at high speed all the time.
I have installed SMCFanControl, and the current readings are 45 / 113 degrees and the fans are running at 5500 rpm. I took the machine back to the Apple store but when I was there the fans didn't go above 3000rpm (typical huh?). It's nice that the case is now a lot cooler than it used to be but the fans seem very loud to me.
The question is, is this normal? I am not running anything very heavy duty at the moment. Any ideas?
Thanks
Matt

I tend to agree with Ned on SMC fan control (that it arguably causes more problems than it solves).
I had a similar problem with mine recently having the fans run constantly and at full speed. My temperatures never approached yours, but it would fail to go to sleep etc.
I would start with the advice Ned gave you. This is the same path Apple Care led me down in trying to resolve the issue.
Ultimately though I had to do an archival install of the operating system. It is non-destructive so it wasn't a big deal. I just had to slowly re-install patches and observe behavior. Oddly I was able to patch back up to 10.4.9 without the issue re-occuring so the root cause is still a mystery to me.
edit
Patch gone bad maybe? I tried re-applying the 10.4.9 combo before attempting the archival install route with no success. I know that has been suggested many times. Apparenty it solves many issues, but it failed to solve mine.

Running out of RAM & Fan Running

I have been having problems with my Mac Book since around Nov. 2010 which just continue to get worse. My system (now 10.6.8) continues to gobble up RAM though no programs are running. Had 2G of RAM that was using up 75% of the RAM so upgraded to 4G of RAM, within 2 days (& after restarts) am back to the system using up around 65% of the RAM. Fan runs & computer hot for no apparent reason, with just safari & this page open. Have added Privacy for my bootcamp partition in Spotlight, still seems to have the problem. Have reset the PRAM & SCM. Anyone else with this problem?

Looking at your Free RAM is a useless measure, as the goal of any operating system should be to take full advantage of all the RAM it can. Otherwise it is wasting your money because you paid for something the OS is not using, and worse, it is not taking full advantage of the best resource for allowing your system to run at its faster.
The operating system should be giving RAM to any process that needs it, and if the applications do not need it, the operating system should be using that RAM for a file system cache so you can avoid very expensive disk I/O. And by expensive, I mean expensive in time, expensive in power consumption, and expensive in wear and tear on your disk drive.
On Mac OS X, you want to look at both Free and Inactive memory to see how much memory is availble for processes to use. Inactive memory is often used a a file system cache. But Inactive memory may also contain the code for a recently quit program so that if you start that program again, it can quickly be re-activated from the cached code already in memory.
As Linc has suggested, you want to look at Activity Monitor and see if there is an app or daemon that is consuming lots of Real Memory.
If you think your Mac is using too much memory, then you might also run an Applications -> Utilities -> Terminal -> "sar -g 60 100" command, which should let you see your pageout activity once a minute for 100 minutes (adjust the numbers to suite your tastes). If mostly you have zero or very low numbers, you are NOT suffering from lack of RAM. If you have a few spikes, that might come from starting a new app, or switching between apps. If you have sustained pageout activity, that might indicate the work you are doing it stressing your available RAM and might benefit from running fewer concurrent apps, or getting more RAM for what you are doing.
It is very rare for the operating system itself to be the cause of excessive RAM usage. More frequently it is an app or daemon that gets memory hungry.
Also Linc's suggestion to boot in Safe Mode is an excellent idea, as that will eliminate any 3rd party drives, kernel extensions, or daemons. If the problem continues when running in Safe Mode, then that would increase your argument that it is something Apple provided. If the problem goes away when booted in Safe Mode, it tends to indicate there is a 3rd party driver, kernel extension, or daemom that is causing the problem.

Fan running a lot more

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