36 votes
Accepted

What's the difference between motherboard and chassis?

Chassis The chassis, also often called the "case", is the container or enclosure that holds all of the other pieces of a computer. It might include some switches, fans, and indicator lights. Desktops ...
Doug Deden's user avatar
  • 1,879
16 votes
Accepted

RAID 6 array, one disk rebuilding?

Disks can experience temporary failures that cause them to drop out of the array but can be corrected by a system reboot or controller reset. This might really be a one-off error but I would follow up ...
doneal24's user avatar
  • 871
11 votes
Accepted

Supermicro Server fails to boot from NVMe SSD

I have found a solution to this problem. It turns out that it is not possible to boot from NVMe in BIOS mode. Only UEFI is supported. However, my install disk was booted in BIOS mode, so the installer ...
Keno Fischer's user avatar
10 votes
Accepted

Supermicro IPMIView KVM Console does not work at all

Better answer and complete solution. The problem was the firmware for the IPMI on these boards was too old (not the same as the BIOS - updating the BIOS will not help in this case). Digging around ...
DaveN's user avatar
  • 301
9 votes

Preseed automatic partitioning

Special notes It wasn't mentioned whether there is bios_grub, ESP, GPT or MBR, or which method the firmware uses. When using GPT, you need one or the other (or both). So what will happen is the ...
Peter's user avatar
  • 2,806
7 votes

"HDD Status" in ipmitool sensor output

ipmitool might use sensor number and sensor name for command output. You can use the following command to print the command output in a more friendly format: ipmitool -H <ipmi_ip> -U <...
Diamond's user avatar
  • 9,111
7 votes
Accepted

Supermicro X9SCD won't enter BIOS (error code: AB)

Based on user discussions in a thread by Webjunkie in the ServeTheHome Forums it appears that there is a date dependent bug that causes this behavior on some of the Supermicro X9 boards: It seems ...
Håkan Lindqvist's user avatar
6 votes

What's the difference between motherboard and chassis?

The chassis is the unit that houses the motherboard and other internal components. The motherboard is the... motherboard. It goes in the chassis.
joeqwerty's user avatar
  • 111k
6 votes

How does hardware RAID handle firmware updates for the underlying drives?

The NVMe standard specifies a firmware update process. Any NVMe device supporting that process can be updated by a standard routine located in the RAID controller's firmware. The update can be ...
Zac67's user avatar
  • 11.4k
6 votes

How is Hardware RAID for NVME drives configured on SuperMicro?

Manual (available on the "Resources" page under your link) states there is a SATA RAID. I strongly suspect that is so called "fake" RAID, e.g. not a true hardware RAID. There is no ...
Nikita Kipriyanov's user avatar
5 votes

Identify Disks on SuperMicro server running FreeBSD

I know this is an old question, but for the searchers hitting this, on FreeBSD >= 10.3, you can use sesutil locate da2 on to turn on da2's LED provided it is in an enclosure that provides a /dev/sesN ...
eborisch's user avatar
  • 151
5 votes

Configuring SuperMicro IPMI to use one of the LAN interfaces instead of the IPMI port?

You can also use ipmitool to set the lanport: sudo ipmiutil smcoem lanport dedicated Then check that your config is right: sudo ipmiutil lan -e You should see the line: SuperMicro Lan Interface :...
Bud Hann's user avatar
5 votes

hard resetting link exception Emask 0x50 SAct 0x0 SErr 0x4090800 action 0xe frozen

What you server experiences is basically a SATA renegotiation at a lower link speed after some problem communicating with the drives. These factors can be at work here (ordered by probability) very ...
shodanshok's user avatar
  • 50.2k
5 votes

How to use 12 HDDs with the Supermicro BPN-SAS3-826EL1 backplane?

If you have the -EL1 backplane, you should be able to see all 12 drives, even with a single cable from the RAID card to the expander backplane. If you don't, something's wrong with the backplane or ...
Arvind Sankar's user avatar
5 votes

How is Hardware RAID for NVME drives configured on SuperMicro?

Try following the steps outlined here. In short: press DEL during boot to enter BIOS go to Advanced > Chipset Configuration > North Bridge > IIO Configuration > Intel VMD Technology set ...
shodanshok's user avatar
  • 50.2k
4 votes

Supermicro IPMI KVM: connection failed

For some reason any version of the IPMIView doesn't work with IPMI firmwares >= 3.32, including the last IPMIView one. You have to use the browser launching their Java plugin from a web-interface, and ...
drookie's user avatar
  • 8,759
4 votes
Accepted

hard resetting link exception Emask 0x50 SAct 0x0 SErr 0x4090800 action 0xe frozen

According to Supermicro Support, the defect lies with board : Quote: This board may need ECO 16238 update.
Dennis Nolte's user avatar
  • 2,901
4 votes

Cannot boot server after power failure

After rapidly switch on off the psu in furious rage, the server finally boots.
Syaiful Nizam Yahya's user avatar
4 votes

Disable hardware RAID controller

You can't configure disks connected to the SAS controller in the BIOS. During system startup, there should appear a prompt for a different setup system (Ctrl+H if I remember correctly). https://www....
Sven's user avatar
  • 99.3k
4 votes

What is ME region in BIOS

BIOS ME stands for "BIOS Management Engine". You want to have that option unchecked when upgrading your BIOS. You haven't specified what board you have, but for my X9SCL-F, I had a problem when ...
Inxsible's user avatar
  • 343
4 votes

Is it safe to set RAM frequency beyond Intel's POR?

Is there potentially (and practically) any reliability issue regarding this setting? Yes, you're more likely to have memory stability issues if you run your memory system (memory controller on CPU, ...
Chopper3's user avatar
  • 102k
4 votes
Accepted

Does exist SFF-8087 adapters to PCIe?

As far as I know, SFF-8087 is a connector used for SAS exclusively. You cannot "adapt" it to PCIe because the SFF-8087 port on your motherboard literally does not go to PCIe lanes directly – ...
u1686_grawity's user avatar
3 votes

SAS Expander backplane performance drops when more than 8 drives are active?

SAS expanders do not (as of this writing) "store and forward" like an Ethernet switch would. They can only go as fast as the slowest signaling device in the array. In this case, your drives only ...
Bill Lambert's user avatar
3 votes

How do I get the power consumption of a Supermicro server on the CLI?

You can also just: ipmitool dcmi power reading
user586903's user avatar
3 votes

How to find out the exact IPMI unit you have for firmware upgrade?

I was able to find it right in the boot log/dmesg. Then simply look for that hardware name on the supermicro firmware page!
marathon's user avatar
  • 187
3 votes

Supermicro IPMI and Windows Share

On my SMT-based IPMI 2.0, which is a rather old generation, a ISO-image won't mount no matter what. I had success via Java-console, which also allows mounting images.
Jari Turkia's user avatar
3 votes
Accepted

enabling virtualization on supermicro board

Besides turning VT on in BIOS, you need to perform a full power cycle - shut the host down completely, maybe even pull out the power cables and hold down the power button for a few seconds, and then ...
dyasny's user avatar
  • 18.9k
3 votes
Accepted

Disable hardware RAID controller

Its not possible to disable or bypass this RAID, but you can configure each drive as separate JBOD/RAID0 array. Easiest is to go to MegaRaid Cli (CRTL+Y before boot). There you just run this command: -...
FreekouT's user avatar
  • 126
3 votes

Supermicro IPMIView KVM Console does not work at all

These old IPMI are problematic. What I do is: Set-UP a VM with Windows 7 Install Java 6: https://www.oracle.com/java/technologies/oracle-java-archive-downloads.html Use Internet Explorer default in ...
sparskter's user avatar
3 votes
Accepted

Supermicro SYS-5019S-M and IPMI temperature threshold

Ok, after some time I obtained a definitive answer from SuperMicro. Quoting it: System Temperature RT1 represents local inlet air temperature inside the system and Peripheral Temperature RT2 ...
shodanshok's user avatar
  • 50.2k

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