My intension of this project is to create a low power system which is cool enough
to run fanless and enough power to handle most current applications.
Components of the machine:
VIA C3 1.2A Ghz (133 * 9)
Micron PC133 512MB SDRAM
Seagate 7200.7 IDE 160GB
Aopen FX5200 128MB
Lian Li PC6083
Silverstone 300W fanless PSU
Thermaltake RAM heat spreader
I was able to run the system fanlessly without any problem under normal load
(38 - 45'C reported by MBM5). But once i play DVD movie or "decent" games like
GTA vice city the cpu will get up to 63'C. Although VIA stated that the operation
range of C3 is up to 70'C, but i just don't want to take risk at all. So I have
throw a few stuff into the system.
Sunbeam Rheobus 5.25in fan controller
Sunbeam pyramid (fan controller with overheat alarm function)
1 * 120mm Thermaltake fan
3 * 80mm Arctic Cooling fan
1 * 80mm Zalman ZM-OP1
2 * 80mm Lian Li Adda case fan
Case exchange with the Lian Li PC75USB
Local computer shops don't have Panaflo or Nexus fan in stock. So i have to try
something else. Immediately i was attracted by the look of the fan. According to
Arctic Cooling the "patented" design can decrease wind noise to minimum. So that
means not only it looks good, it runs quietly.
I have chosen Sunbeam Rheobus for fan contoller. Mike has got an article about it
at the main site so i don't have to talk about it any more. I have attached the fans
1st channel: front case fans
2nd channel: cpu and video card fan
3rd channel: PSU fan
4th channel: rear case fan (next to cpu)
3 pin extension cable and splitter r needed. Yes made in China
I guess it's because of the low power draws from the system i have not experience
overheat issue (red light at the back) of the silverstone PSU. But personally i think
55'C is too high for me, and who would actually checks the light frequently at the back
of the PSU? So i have placed a overheat detector to the silverstone.
It is the pyramid from sunbeam. It has got 3 colors to choose from (red, green, blue)
and this is the blue version here. It has 2 in-build fan controllers which would
adjust the fan speed automaticly. And it will beep and flashes once 42'C has been reached.
I have got the Rheobus so i don't need the fan controller. But the overheat monitor function
is really nice here. i've tried it with hair dryer and it simpily beeps with a high pitch
I have used cable tightener to hold the fan with the silverstone. pyramid next to it.
Turns out to be a fanless machine which can be cooled easily with deadly silence. It has been
running 48 hours fanlessly for BT downloading which has got 43'C for cpu and no beeping for the
pyramid. When i turn on the fans the cpu will drop to 32'C for 5V power (35 for games). The
loudest component is still the Seagate!