LSi /3ware / avago Poor thermal performance or clueless techsuport?

[kingofkya]

Or both?

SO i don't deny the controller is running hot it defiantly is but there airflow figure seams to be off by quite bit.

A reply from them.

The controller is running hot. You need to check to make sure there is ample air flow across the controller (300CFM).
10/27/15 15:49:22: Measured chip temperature at Channel 0 is 109

Its running in a server chassis with 3 of these http://www.nidecamerica.com/fanpdfs/v80e_a5.pdf
73cfm each  ones


Just as a sanity check there number is way off right? Or do i not understand something about cfm?



This is not the first time one of there cards has had thermal issues on there 3ware 9750 cards someone though it was a good idea to stick a lithium battery above the ram and blocking the bath of air over the cpu i am sure you all know what happens when a lithium battery gets hit with heat 2-3months was the avg lifespan.

[Little Brutus]

Raid adapters can run hot. You say your case has 3*73 CFM (cubic feet per minute) fans. That is 219CFM. Less than their recommended 300.

In addition, those 219 would be for the whole case and cooling everything.

I had a similar issue with an Adaptec 6805.

My solution was something like this



Thats not the actual one I used, but the idea is to force additional air over the heatsink.

[dr.diesel]

Much of that stuff was designed to run in full server chassis with an army of 10,000RPM fans.

On my IBM M1015s I replace the stock low profile heat-sink with one that has the same foot print, but 4x taller.  Matching the mounting holes is not required, just use heat-sink glue.

[Towger]

As Dr. D. An army of fans, running at full speed in a line the width of the case would be common enough in highend rack servers.
Not something you want to listen to. .

[dr.diesel]

Here is a recent example of one I modded, I cut the ears off of course:

[kingofkya]

Yeah in this case it acceley is in a 2u server chasse that basicly has one fan dedicated to the card.

And it is in a datacenter that run the cold isiles at 70-68F

I just find it kinda pathetic that they undersized the heatsync that much on what is a $500+ cards.

This really sucks if the thermal issues are that bad we have a few hundred servers with this cards at this point.