article will tell you how to modify your Asetek system, in to a "500Watt/RAID
Step #1 Adding a huge case fan!
Pictures shows the huge 120mm case fan, this fan is made of massive aluminum
and the effect is 8 Watt. I got it from an old server and it can hardly be heard. The fan
is balanced with led-weights and it uses 230volt power supply. My philosophy on fans is :
1 BIG fan is better than many small ones (less noise!) My VapoChill had no
secondary case fan installed :(
Step #2 Adding 200Watt!
Picture shows how the "stripped" 200W AT PSU is
mounted in the front of the
case (remember to use "spacers").
My VapoChill came with a 300W Fortron powersupply. This may very well be sufficient, but
overclockers like to have the little extra. The cooling system only use 55W, but when you
run CPU`s over spec. they consume much more power. Combined with a couple of harddrives in
RAID you'll soon become short of power. At work I found an old Aopen 200W AT PSU, I
removed the case and stripped it
for any unnecessary cables (like motherboard power connectors).
In order to eliminate any additional powerswitches I use a relay to start the 230V casefan
and the secondary PSU. The relay can also be seen on the picture above, it is the little
black box with all the cables sticking out of it. It is a 12V/30A (360W) relay.
Since I will be using 230V on a 12V relay, I bought an overdimensioned unit. This is the
same type that is used in cars (for extra headlights...)
Here is how the system works:
1. The powerbutton is pushed, the primary powersupply (PSU1) starts.
2. The relay instantly get 12V from PSU1 and kicks in and gives the
secondary powersupply (PSU2) and the casefan 230Volt.
3. In a 1/10 of a second, all components get its power.
When you want to shut down your system, this happens:
1. Windows ask you if you want to shut down, you answer "yes" :)
2. PSU1 (ATX) shuts down, the relay looses its power, resulting in that PSU2
and the casefan looses its power.
3. System is dead (end of circle!)
The additional 200Watt (PSU2) is used to feed the harddrives, floppydisk, coolingsystem
and CD/DVD-rom. PSU1 (300W/ATX) is now
only supplying the mainboard, ChillControl and the relay.(The relay only uses 1,5W)
So there you have it - 500W (300+200) !
Step #3 Adding LED`s, reset switch and ChillControl!
Picture above show the front of the case.
ChillControl (CC) prevents your system to boot before
desired sub-zero temperatures are reached. The CC has its own LED that is intended to be
mounted in the PSU1 LED`s place. I prefer to have PSU1 LED working, so that is why I won't
change it against the CC LED (as Asetek is recommending). The secondary powersupply (PSU2)
also has its own LED. VapoChill systems don`t have a reset switch, I personally like to
have one in my systems, therefore I mounted this in the front.
Picture shows how I placed the
Step #4 Adding an extra harddrive space!
VapoChill has only 2 harddrive bays,this is not a good thing when you want to run many
disks in RAID, picture above show how I mounted the third harddrive.
Jørn Ove Edvardsen
: be aware of local laws and
regulations regarding tampering with AC power ! )