Dell (TFJRW) LSI 9206-16e sas adapter is running hot

[BackupProphet]

I've recently configured a Supermicro 847 36 bay chassis and have this card. Even with full fan speed, I get 55 degrees C and warnings in Linux. How do people cool this card?

[  717.346323] mpt2sas_cm2: Temperature Threshold flags 0     exceeded for Sensor: 0 !!!
[  717.346333] mpt2sas_cm2: Current Temp In Celsius: 55
[ 717.409289] mpt2sas_cm1: Temperature Threshold flags 0 exceeded for Sensor: 0 !!!
[ 717.409298] mpt2sas_cm1: Current Temp In Celsius: 56

 

[BLinux]

That is not unusual for the 9206-16e. they have 2 SAS2308 chips, and both of those run very hot, sometimes up to 90C. 50C is not bad. I don't have the reference right now, but I recall a LSI/Broadcom doc saying the operating temp range was up to 100C. of course, I would not be comfortable running near that limit all the time, but 55-56C is far from it.

If you want to improve it, try re-pasting the thermal paste, use a different PCIe slot that gets more airflow (away from sidewalls), and if you can, make some air shrouds to direct more air over the card's heatsinks. And of course, you can lower ambient temps too...

 

[BackupProphet]

Operating max temperature is 55C I think -> Avago Technologies SAS 9206-16e Host Bus Adapter - Manual (Page 6)
I have done some minor adjustments and actually moved it closer to the sidewall at it seems there is more air pressure there, now I have 50C. I am also thinking about attaching a fan on it too.

 

[BLinux]

Operating max temperature is 55C I think -> Avago Technologies SAS 9206-16e Host Bus Adapter - Manual (Page 6)
I have done some minor adjustments and actually moved it closer to the sidewall at it seems there is more air pressure there, now I have 50C. I am also thinking about attaching a fan on it too.

I believe the 55C is the ambient air temperature. They also specify the airflow requirements at that temp:

200 linear feet per minute at 55 °C (131 °F) bay inlet temperature

I don't think that 55C is the limit for the temperature from the chip sensor.

That's interesting. I usually get higher temps from what I assume was less airflow near the sidewalls. But, whatever works for you, stick with it.

 

[BackupProphet]

Ah, that may make sense. I still get warnings in Linux though, anyone know how to disable them?

 

[BLinux]

Ah, that may make sense. I still get warnings in Linux though, anyone know how to disable them?

Just curious... what firmware version do you have? I'm wondering if you have the Dell Compellent firmware which is something like 20.00.11.00. If so, try to flash it with the broadcom version which is 20.00.07.00 and see if that reduces the occurrences of that warning.

If you just want to avoid the message while on the console, you can run "dmesg -n 1" to temporarily block the messages from your screen.

 

[DocMadCow]

Have you added a fan to it? I have a 40mm fan running on my IBM M5016 / Megaraid 9265. Prior to the fan the heatsink would nearly burn my fingers when touching it.