Post by ferg on Aug 1, 2008 22:57:33 GMT 7
Ok i have had the board out of the box and placed it on top of the driver caddy upside down to see where i can place these fans.
Firstly, thanks for the comments of the airflow hot spots.
Secondly the 40 mm fan locations:
If you mount 2 on each side of the caddy- on the right side just above the Ethernet ports stick a fan pointing down, so air is sucked in from the side and blown under the drive caddy.On the opposite side, mount another 40mm fan blowing out of the back on the case towards the power plug. The hot air that is blown through will rise, but sucked in by this fan the pushed out the back.
The problem with the under carriage is the wifi card socket, there are two options here. You can mount the same arrangement, suck from right side and blow out the front of the case. Or, what i was thinking was mounting a smaller 30mm fan under the drive caddy, blowing out through the hole between the led's hand push button strut.
I am not sure whether to stick this to the caddy or the main CPU which is in line with this hole. I think the caddy is best as it is a lot easier to remove!
This leaves the top of the caddy, the 40mm fan is too big so a few 30mm fans might do the trick here, blowing out the front of the n2100. I suspect this will be optional.
I will leave the original fan intact as it still blows air between the drives. The next problem i foresee is powering these additional fans. Ideally you would like to use the variability of the original fan but i remember reading that this had a maximum load rating that means you would be best leaving one fan attached to those voltage rails.
However, if i can find the correct transistor or MOSFET, depending on their linear range characteristics i can hook the fans to the drain of the transistor, the power supply VDD rail to the source, link the gate to the voltage line of the back fan. I should have the same control over every fan in sync with the original fan.
Any thoughts of this scheme? I won't buy anything until i have a clear setup in my head.
The fans can be found here, which deliver internationally.
www.pchub.co.uk/uph/laptop/88-16442-5207/SUNON-GB0545AFB1-8-Cooling-Fan.html
for the 45 mm and,
www.pchub.co.uk/uph/laptop/88-14336-6445/SUNON-GB0535ADB1-8-Cooling-Fan.html
for the 35mm. I am not sure about the 35mm model number as mine is difference by one letter. oh hear is another with the right model number
parts.digikey.co.nz/1/1/117817-blower-5vdc-35-x-4-8mm-gb0535acb1-8.html
Firstly, thanks for the comments of the airflow hot spots.
Secondly the 40 mm fan locations:
If you mount 2 on each side of the caddy- on the right side just above the Ethernet ports stick a fan pointing down, so air is sucked in from the side and blown under the drive caddy.On the opposite side, mount another 40mm fan blowing out of the back on the case towards the power plug. The hot air that is blown through will rise, but sucked in by this fan the pushed out the back.
The problem with the under carriage is the wifi card socket, there are two options here. You can mount the same arrangement, suck from right side and blow out the front of the case. Or, what i was thinking was mounting a smaller 30mm fan under the drive caddy, blowing out through the hole between the led's hand push button strut.
I am not sure whether to stick this to the caddy or the main CPU which is in line with this hole. I think the caddy is best as it is a lot easier to remove!
This leaves the top of the caddy, the 40mm fan is too big so a few 30mm fans might do the trick here, blowing out the front of the n2100. I suspect this will be optional.
I will leave the original fan intact as it still blows air between the drives. The next problem i foresee is powering these additional fans. Ideally you would like to use the variability of the original fan but i remember reading that this had a maximum load rating that means you would be best leaving one fan attached to those voltage rails.
However, if i can find the correct transistor or MOSFET, depending on their linear range characteristics i can hook the fans to the drain of the transistor, the power supply VDD rail to the source, link the gate to the voltage line of the back fan. I should have the same control over every fan in sync with the original fan.
Any thoughts of this scheme? I won't buy anything until i have a clear setup in my head.
The fans can be found here, which deliver internationally.
www.pchub.co.uk/uph/laptop/88-16442-5207/SUNON-GB0545AFB1-8-Cooling-Fan.html
for the 45 mm and,
www.pchub.co.uk/uph/laptop/88-14336-6445/SUNON-GB0535ADB1-8-Cooling-Fan.html
for the 35mm. I am not sure about the 35mm model number as mine is difference by one letter. oh hear is another with the right model number
parts.digikey.co.nz/1/1/117817-blower-5vdc-35-x-4-8mm-gb0535acb1-8.html