Add a Heatsink at the back of Northbridge is useful ? - Page 2 - Overclock.net

tonschk · 11-23-08

Quote:

Originally Posted by Chipp

Those backplates exist predominantly for mounting the heatsink on the other side. My guess would be you would have minimal heat dissipation through the mounting hardware from one heatsink to the other, but since the backplates are metal they have to be insulated, which would allow almost no direct heat transfer from the chip through the PCB. So sure, if a mobo comes with one theres certainly no reason to proclaim it useless, but I would hardly go running out to buy one as the next big thing in air cooling.

Of course is necessary to install a thermal pad between the Heatsink and the PCB of the Mobo

Millillion · 11-23-08

Quote:

Originally Posted by sabermetrics

I don't see any...

You can mount an 80X80X15 mm fan back there to pull air out from under the motherboard, can sometimes help by pulling out stagnant, hot air.

sabermetrics · 11-23-08

Quote:

Originally Posted by tonschk

Of course is necessary to install a thermal pad between the Heatsink and the PCB of the Mobo

not just thermal compound/thermal pads... heatsinks will conduct electricity, so if it isn't seperated from the board by a layer of insulation, it will short the motherboard

sabermetrics · 11-23-08

Quote:

Originally Posted by Millillion

You can mount an 80X80X15 mm fan back there to pull air out from under the motherboard, can sometimes help by pulling out stagnant, hot air.

Yeah, I know... my answer to that is on the previous page

gooddog · 11-23-08

Thermalright has a solution for this. ok for OC'ing

http://www.hardwarecanucks.com/forum...-review-9.html

tonschk · 11-23-08

Quote:

Originally Posted by sabermetrics

I don't see any airflow though... sure, I see the hole, but there isn't any fan to push any air through there... there is no air passing through there to cool the back of the motherboard

But having a fan there and adding a heatsink to the back of the motherboard are two seperate things... adding airflow to a case is always good, but adding a heatsink to everything you can isn't

I assure you there is airflow coming inside the case through those holes at the back of the mobo

sabermetrics · 11-23-08

Quote:

Originally Posted by gooddog

Thermalright has a solution for this. ok for OC'ing

http://www.hardwarecanucks.com/forum...-review-9.html

Quote:

Cons:

- No fan included
- Does not fit all cases (like CM690)
- Only accepts one fan
- Limited cooling potential

I think that review pretty much sums it up right there

sabermetrics · 11-23-08

Quote:

Originally Posted by tonschk

I assure you there is airflow coming inside the case through those holes at the back of the mobo

*sigh* alright, here's a simple explanation... air will not magically enter that vent and cool your motherboard... there is no fan to push the air... therefore, there is no airflow

But thats besides the point... stick a fan there, and its a much better way of cooling the back of your motherboard than to add a heatsink to the back...

tonschk · 11-23-08

Quote:

Originally Posted by sabermetrics

*sigh* alright, here's a simple explanation... air will not magically enter that vent and cool your motherboard... there is no fan to push the air... therefore, there is no airflow

But thats besides the point... stick a fan there, and its a much better way of cooling the back of your motherboard than to add a heatsink to the back...

All the exhaust fans inside the case create negative pressure , this pull air inside through every hole

There is ventilation even without a fan there