Unsolved
1 Rookie
•
35 Posts
0
6882
R730XD Exessive Fan Speed
Got a dell R730XD and for some reason, the fans are running at ~50% PMW and making a lot of noise. and most likely filling everything with dust faster than it needs to. the air is coming out cool to the hand at the back of the chassis.
Also, we've got another R730XD running right above this one and the fans are completely quite on it. what's triggering the excessive fan speed on this machine? I've included a picture of the fans on the issue machine. Any help would be appreciated.
Jared
DELL-Shine K
4 Operator
4 Operator
•
3K Posts
0
March 23rd, 2021 07:00
Fan speed on the server also depends on the number of cpu, dimm and cards also. Is both server have same configuration? Can you also check whether the server have latest iDRAC and BIOS FW.
Is fan speed increased recently after any changes on the server or it was like this from beginning?
jwsl224
1 Rookie
1 Rookie
•
35 Posts
0
March 23rd, 2021 09:00
Thanks for the reply.
the quite one has 256gb RAM and the loud one has 128. what should i be checking? neither have any PCI cards.
the BIOS version is 2.12.1
the firmware version is: 2.75.100.75
jwsl224
1 Rookie
1 Rookie
•
35 Posts
0
March 25th, 2021 06:00
any further information on this Shine?
DiegoLopez
4 Operator
4 Operator
•
2.7K Posts
0
March 25th, 2021 08:00
Hello @jwsl224,
On the same iDRAC can you check the hardware inventory and make sure they both have exactly the same components? Any variation could explain the fan speed difference. You can also check BIOS configuration and see if there are any differences.
Regards.
jwsl224
1 Rookie
1 Rookie
•
35 Posts
0
March 25th, 2021 08:00
Hi Diage,
here is a shot of the fan info for each chassis, first the quite one, then the loud one.
jwsl224
1 Rookie
1 Rookie
•
35 Posts
0
March 25th, 2021 09:00
here is also a shot of the fan settings for each chassis, first the quite one, then the loud one:
DELL-Josh Cr
Moderator
Moderator
•
8.7K Posts
0
March 25th, 2021 09:00
Do both systems have the same CPUs? Can you power off and unplug to drain the flea power and reconnect power and boot up and see if it is still happening?
jwsl224
1 Rookie
1 Rookie
•
35 Posts
0
March 25th, 2021 10:00
no, the quite one has 2x Intel Xeon E5-2678 v3, and the loud one has 2x Intel Xeon E5-2623 v4
draining the flee power does help, sir.
Jared
DELL-Chris H
Moderator
Moderator
•
8.8K Posts
0
March 29th, 2021 11:00
Do you happen to have any PCIe devices installed, if so what are they?
If you do have PCIe devices installed, if you remove them do the fans slow?
Also, in the iDrac web GUI under Hardware-Fans-Fan Config, what is that currently set at?
Let us know.
jwsl224
1 Rookie
1 Rookie
•
35 Posts
0
March 29th, 2021 11:00
any thoughts on this guys?
jwsl224
1 Rookie
1 Rookie
•
35 Posts
0
March 29th, 2021 11:00
i do not have any PCIe devices installed on the machine.
i have included a screenshot of the fan screen in a post above. here it is again in its current state.
DELL-Chris H
Moderator
Moderator
•
8.8K Posts
0
March 29th, 2021 13:00
I apologize for that. I did notice that on the quiet one the thermal setting is at Default, where the loud on is showing as set to Minimum.
If you change that is there any change?
jwsl224
1 Rookie
1 Rookie
•
35 Posts
0
March 29th, 2021 17:00
no i have them both at default now. the quite one is running at 16CFM and the loud is is 64CFM
Jared
DELL-Young E
Moderator
Moderator
•
4.1K Posts
0
March 29th, 2021 19:00
Hi, if I may- apart from the CPU-does the loud one have the same number of HDDs as the quite one? There really can be a lot of reasons for fan noises. ( The HDDs located at the front could block the fanning/ventilation I was thinking)
jwsl224
1 Rookie
1 Rookie
•
35 Posts
0
March 30th, 2021 07:00
both of them have about half of the front bays filled with drives. why isn't there a setting that lets me more precisely control the fan speed? also, the fans aren't even running at the same speed. it seems there's a software issue somewhere with it...