What Cpu Heatsink Provides The Best Cooling, old or new one? Options

[finalman]

As the topic says i want to know what cpu heatsink provides the best cooling the old copper base one with the heat pipe or the new aluminium only one.

This is for my 2nd jtag jasper i'm looking at removing the dvd drive and moving the current cpu heatsink a 2nd gen alluminium one to the Gpu and preferably using on old style cpu heatsink on the cpu. My other Jasper has 2 2nd gen cpu heatsinks and runs cool as.

[hybridkiddd]

The bigger the better; I'd go with the second gen.

[MadMaxGR]

Heatpipes and copper are better, so I would suggest the 1st gen CPU heatsink (not the GPU)

[itwontfixitself]

Heatpipes and copper are better, so I would suggest the 1st gen CPU heatsink (not the GPU)

I agree with MadMaxGR that the copper ones are better. If you do use a copper CPU heatsink with heatpipe on the GPU then you need to use a shim of some sort being the copper part of the heatsink will no fully contact both of the shiny dies on top of the chip so it would defeat the purpose of replacing the old heatsink. I saw someone somewhere file a 1st gen CPU heatsink down so it would work without a shim but I don't remember where I saw it.

[finalman]

What about what is better for the GPU a 2nd gen gpu heatsink with heatpipe or a 2nd gen cpu heatsink?

What Processor runs hotter CPU or GPU (not taking into accout heatsink cooling)?

My current setup on this console is a 2nd gen gpu heatsink with heatpipe plus a 12v 5cm fan on the fins at the end of the heatpipe sucking the air over the fins and out an opening at the top of the console and a 2nd gen cpu heatsink on the cpu. However with this setup the processor temps seem to be about 3 degres celcius warmer than the gpu. Is this within the acceptable range? this may be higher as the gpu fin fan may be starving the cpu of some of its air pressure. There is like around 5mm inbetween the gpu fins and fan and the cpu heatsink.

What setup do you people think would be best?

# l CPU Heatsink l GPU Heatsink
_____________________________________________

1 l 2nd Gen CPU l 2nd Gen GPU (My Current Setup - internal dvd-rom drive)
2 l 2nd Gen CPU l 2nd Gen CPU (I would need to get another 2nd gen CPU heatsink for this one)
3 l 1st Gen CPU l 2nd Gen CPU (I am able to do this one)

I would like to hear what everyone thinks.

I agree with MadMaxGR that the copper ones are better. If you do use a copper CPU heatsink with heatpipe on the GPU then you need to use a shim of some sort being the copper part of the heatsink will no fully contact both of the shiny dies on top of the chip so it would defeat the purpose of replacing the old heatsink. I saw someone somewhere file a 1st gen CPU heatsink down so it would work without a shim but I don't remember where I saw it.

I won't be using a 1st gen cpu heatsink on the Gpu on account of the copper heatsink not fully covering the gpu edram. But thanks for your input itwontfixitself.

[MadMaxGR]

I suggest you use this configuration if you can:

1nd Gen CPU copper heatsink (for the CPU) and 2nd Gen GPU heatsink with the extension (for the GPU)

[relaxxx]

I've used 1st gen CPU heatsinks on GPU's and the edram was running cool (around 40C). It just looks nicer to have the same two heatsinks under the hood.

It can be done but you want to use a lot of quality thermal paste and also get paste under the metal leg that will be over the edram, remove the two screws holding the leg piece, lift and apply plenty paste all over it. With this setup the GPU stays below 50C even at stock fan speeds. With Xenon the temps will be something like GPU/EDRAM 45C and CPU 70C. The GPU stays cool enough even if you block half the GPU side fins to add more airflow to the CPU side.

I even have a cardboard template right here to make a custom fan shroud for this exact configuration.

This post has been edited by relaxxx: Jun 23 2010, 01:06 PM

[RUiN114]

From reading and fixing these thing I have seen that the CPU is not usualy the problem. But it's the GPU, and the volts the fans are running at stock.

[finalman]

I suggest you use this configuration if you can:

1nd Gen CPU copper heatsink (for the CPU) and 2nd Gen GPU heatsink with the extension (for the GPU)

Here is what i found out about my 2 360 setups from tests just now. Both Jaspers. Console one has 2 2nd gen CPU heastinks and console two has both the correct 2nd gen heatsinks on each processor and has a fan on the gpu heatsink fins at he end of the heatsink.

Each consoles was started at the same time, has the same fan speed settings of 70x and ran idle through xexmenu for about 10mins and temps were stable.

Console one with the 2nd gen cpu heastink on the GPU runs about 3 deg C cooler than console two with the 2nd gen gpu heatsink even though this one has a fan on the heatpipe fins.

It looks like the 2nd gen cpu heatsink is better than the 2nd gen gpu heatsink (even with the listed modification) at cooling the gpu.