Does E6550 stock fan works for Q9400 ?

[unreal4]

I have a E6550 on my system. I got a new used CPU Q9400.

But I noticed Q9400's stock fans is smaller than E6550's.

Should I use the old one (E6550's stock fan)? Is it suitable for Q9400 too?

My specs:

Gigabyte GA-P35 DS3L
Intel E6550 2.33 Ghz
Sapphire HD 5830 Extreme
2x1 gb Kingston 800Mhz
Feel Hurricane
500W PSU

Left one is Q9400, right one is E6550.

 

[Markfw]

The fans are bigger on the one on the right, but the copper on the left one will help. Since they are so easy to remove, I would pick one, try it at full load, check the temps, then pull it, try the othr one and repeat the test. End up using whichever has the lower load temp.

 

[sm625]

but the copper on the left one will help.

The heatsink on the right has thermal paste on it. Its probably got the same copper underneath it if it were to be cleaned off.

 

[john3850]

I have a original e6600 fan same as the one on the right except it has a copper insert.
That e6600 fan ran every cpu I owned to 4200Mhz before switching to a water block thanks to the extra holes in a asrock mb.
My e6600 fan got a 1366 up to 4200Mhz with 1.38volts.
If you using a high cfm rear case fan that is close to cpu the smaller may also be good.

 

[nenforcer]

The fan on the right is for the .65nm E6550 while the one on the left is for the .45nm Q9400. The shrunken transistors accounts for the smaller size of the fan necessary to cool it equivalently.

You'll definitely get better results with the fan on the right with the Q9400, especially if you are looking to overclock any.

 

[Tsavo]

The one on the right is for the Australian market. You can determine this because the fins spiral outward in the opposite direction to northern hemisphere units.

This is to counter the Coriolis effect.

 

[Magic Carpet]

The fan on the right is for the .65nm E6550 while the one on the left is for the .45nm Q9400. The shrunken transistors accounts for the smaller size of the fan necessary to cool it equivalently.

Correct.

In this race, the bigger is the better :awe:

The one on the right is for the Australian market. You can determine this because the fins spiral outward in the opposite direction to northern hemisphere units.

This is to counter the Coriolis effect.

Amusingly, I have exactly the same heatsink and as far as I know, it was intended and sold for / in the Northern hemisphere market. Interesting hypothesis, however.

 

[aigomorla]

left was when intel cared about waste and shrank the metal required.
The right fan is when they didnt care about waste.

This is assuming both heat sinks have the copper core.
If the big one on the right doesnt.. then the left is fast superior due to copper being a much better thermal conductor.

The one on the right is for the Australian market. You can determine this because the fins spiral outward in the opposite direction to northern hemisphere units.

This is to counter the Coriolis effect.

ahahahaha... if i didnt know any better i would of bought this definition...
Unfortunately... i know all the bigger sinks are waved in that direction while the smaller ones in the other.
I think its more to denote which production hub it came from... and factories (costa rica and Malay) fighting on which is the correct direction to make the fins.

And then ofcourse china... told both of them we can do it better.