Johnyblaze
Limp Gawd
- Joined
- Nov 9, 2003
- Messages
- 300
So I have a recently purchased Supermicro 847 JBOD and I have a little issue with the fans. It seems the fans that are connected to the rear backplane "spin down" after 15-30 seconds from power on, which makes sense because that's what pretty much all servers do after they POST. I also noticed this because both backplanes have a red "fan fault" LED and as soon as that turns off, the 4 fans that are connected to the rear backplane spin down to a more reasonable tone. The 3 fans that are connected to the front backplane, part number BPN-SAS2-846EL, however, do not spin down and the fan fault LED on the front backplane stays illuminated red, so it must think something is wrong with a fan or fans on the front backplane and thus it never spins the fans down. I checked and re-seated all fan connectors, and swapped around the fans from front to back, and they're definitely spinning, so I'm not sure why the front backplane is not kicking down the fan speed and why it thinks there is a fan fault. Based on the fan swapping it's definitely isolated to the front backplane and not an individual fan. I'm also looking through the manual PDF but am having a hard time figuring this one out.
Does anyone have any idea as to why the front backplane is stating there is a fan fault and in turn is not spinning the fans down when everything seems to be OK? Additionally, is there any way to adjust the fan speed on this JBOD? I just want to quiet this JBOD down as the fans that are not spinning down are very loud! Thanks for any help.
Does anyone have any idea as to why the front backplane is stating there is a fan fault and in turn is not spinning the fans down when everything seems to be OK? Additionally, is there any way to adjust the fan speed on this JBOD? I just want to quiet this JBOD down as the fans that are not spinning down are very loud! Thanks for any help.