DFNSMALL observatories BIOS configuration

Commell LE-37D single board industrial PC

This type of SBC is used in later DFNSMALL and all DFNKIT observatories. DFN observatories specific configuration is described below.

For more details regarding the Commell LE-37D single board industrial computer please refer to user manual on the manufacturer's web site [1].

In case of mSATA system SSD disk (mini card) used
- HW jumper JMSATA - must be in position 1-2 (default is 2-3)

1. PC behaviour after power resume

BIOS -> Others-> Super IO Configuration -> PowerLoss -> Power control [Always ON]

2. SATA

BIOS -> Advanced -> South cluster configuration -> SATA Drives - select AHCI mode

3. USB3
There is one USB3 port and 5 USB2 ports, by default USB3 port is extended power only, but USB2 protocol/link speed. To enable USB3:

BIOS -> Advanced -> South cluster configuration -> USB - disable EHCI nmode, enable xHCI mode

4. SIM card slot - only for use with mPCIe 3G modem, otherwise can be left on defaults

BIOS -> Advanced -> South cluster configuration -> Miscelaneous	- WLAN card presence - UHPAM card inserted -> ENABLE

5. RTC alarm every day wake up (effective only in case of accidentally suspended/hibernated, not when powered down or failed to boot)

BIOS -> Others -> APM Configuration ... Enabled, Everyday, 08:00 (HW clock is in UTC)

6. Save and exit

Exit -> Exit Saving changes

7. Watchdog timer

BIOS -> Others-> Super IO Configuration -> Watch dog timer -> Watch dog timer select -> 3min (the maximum time)

Note: disable Watchdog in BIOS temporarily when cloning system