Titan Fenrir CPU Problem

Thermo Nuclear Penguin · 19 Feb 2010 at 00:20

Hi,
I recently purchased an i7 and a Titan TTC-NK85TZ Fenrir cooler to go with it as the reviews of it were very good. However the temperatures I was getting with it were not very good with the i7 getting up to 90'C during 100% load on all 4 cores.

I took the cooler off to make sure that it was seated properly and it appears that the base of the cooler is far from flat. I have pictures that I will upload tomorrow, but basically, of the 4 copper heat pipes that go into the base, only 2 of them are actually making contact with the CPU, and none of the aluminium base is touching either. This explains why the cooler its self was hardly warm!

I have seen guides around on how to produce a perfectly flat finish, just not sure I'm keen on doing this and potentially messing up the cooler. I will call Overclockers tomorrow and see what they say.

I was wondering if anyone else has had a similar experience? And has anyone had any experience in making the base of coolers flat? Any good guides around?

Cheers,
Phil

setter · 19 Feb 2010 at 00:26

Being a direct heatpipe cooler, id be wary of lapping a fenrir in case you weakened the pipes, ive done it on my TRUE but it has a solid flat base.

babydavid · 19 Feb 2010 at 17:47

I have a Fenrir too which is on my overclocked AMD Phenom 2 940 i have lapped the heatsink. Took some time like 2 days as you just have to go slow and carefully because of those bare parts i started with a 600 then 1000 , 1200 and final 2000 looks tops plus you should be using a good TIM like artic silver 5 or mx-3. hope this is some help.

Uriel · 19 Feb 2010 at 18:11

I would not lap a HDT cooler. Too risky.

Are you sure that it's not flat enough? Did you apply the thermal paste using a suitable technique for a HDT cooler? A line on or blob on the middle heatpipe isn't going to do much for the others.

Thermo Nuclear Penguin · 19 Feb 2010 at 19:39

Right, as promised here are some pictures...

From those hopefully you can clearly see what I mean?

Just read an interesting site Here That actually suggests lapping HDT Coolers in order to get the base even?

As for how the thermal paste was applied, I wasn't aware there was a specific way to apply it at the time, but I applied a thin even layer of arctic silver to the CPU.