Question about installing heatsinks on voltage regulators

[Goose]

I recieved an Accelero S1 Rev.2 today for my Saphhire HD 4850 and i'm not entirely sure how to seat the 4 heatsink on the voltage regulators as they are not the same shape.

Highlighted below are the 4 voltage regulators.

Below you can (kind of) see the difference in shape between voltage regs and the heatsink base.

Below are my two options for seating them.

One heatsink seated vertically on two voltage regs.

Or, one on each but with each heatsink not covering the entire surface (kind of hard to see in the photo) area of each voltage reg due to the difference in shape.

Any advice would be appreciated and i apologise for the crappy pictures.

Thanks

 

[PhillyDee]

One heatsink for 2 would be perfectly fine.
I assume you are using a thermal adhesive?

 

[Goose]

One heatsink for 2 would be perfectly fine.
I assume you are using a thermal adhesive?

They have adhesive on each heatsink.

 

[PhillyDee]

I would personally choose the one that gives the most coverage to the chip itself. So go for the 2 under 1 if the other is leaving gaps.

 

[twist3d0n3]

am i right in saying the little black chips to the left of those highlighted in the 1st image are in fact the VRMs?

 

[Amonlym]

your correct, the highlighted items are actually inductors (chokes) and do not need heat sinks. the 8 smaller chips to their right, between the screw holes are the devices that need the sinks.

 

[twist3d0n3]

that's it - couldn't remember inductors

 

[kitch9]

Can anybody recommend VRM heatsinks for use with a Palit 460GTX Sonic Plat?