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 fitlet-T BIOS Update? 
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Joined: Tue Oct 29, 2019 9:54 pm
Posts: 6
Post fitlet-T BIOS Update?
Was there ever an updated BIOS produced for the fitlet-T (and-H) that allows for serial port configuration? The currently posted firmware is quite far behind their other fitlet cousins.

I have a pair of fitlet-T units that are being repurposed and could really use the serial port option.


Wed Oct 30, 2019 7:52 am
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Joined: Mon Dec 25, 2017 4:21 pm
Posts: 384
Post Re: fitlet-T BIOS Update?
Can you please elaborate on "serial port configuration"?
what exactly are you trying to achieve with your machines?


Wed Oct 30, 2019 8:10 am
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Joined: Tue Oct 29, 2019 9:54 pm
Posts: 6
Post Re: fitlet-T BIOS Update?
I'm hoping for console redirection to the COM port for headless use, hopefully with BIOS access.

I'm also hoping an updated BIOS will resolve (or at least help explain) some oddness I'm seeing with the reported RAM configuration on both systems.


Wed Oct 30, 2019 9:53 am
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Joined: Mon Dec 25, 2017 4:21 pm
Posts: 384
Post Re: fitlet-T BIOS Update?
I will check with our R&D regarding console redirection feature in the fitlet-T/H.

Regarding the "Oddness" you described, please provide additional information:
Which RAM configuration?
Where it is reported?
What exactly do you experience?


Wed Oct 30, 2019 3:16 pm
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Joined: Tue Oct 29, 2019 9:54 pm
Posts: 6
Post Re: fitlet-T BIOS Update?
The two systems are currently configured as 2x4GB DDR3L 1866MHz and 2x8GB DDR3L 1600MHz.

I was attempting to improve memory bandwidth and obtained some 1866MHz SODIMMs as that was the fastest speed listed in the BIOS configuration but quickly discovered that the faster modules had no impact on the measured bandwidth.

I then used the "dmidecode" terminal command and it reported the configured speed as 667MHz (DDR 1333MHz?) and configured voltage as 1.5v which shouldnt even be possible. I then tried forcing the clockspeed in BIOS settings and found that the option did nothing, no mater what speed was selected. The interleaving option also didnt appear to do anything for performance.


Wed Oct 30, 2019 10:10 pm
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Joined: Mon Dec 25, 2017 4:21 pm
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Post Re: fitlet-T BIOS Update?
We're working to test 1866MHz memory modules but meanwhile we've tested 2x 4GB DDR3L 1600Mhz (PC12800) using RAMMon which reports maximum clock speed 800Mhz and maximum transfer speed DDR3-1600.

We'll report back once tested with 1866MHz modules.


Tue Nov 12, 2019 1:31 pm
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Joined: Mon Dec 25, 2017 4:21 pm
Posts: 384
Post Re: fitlet-T BIOS Update?
A BIOS update with added functionality of console redirection has been added to the fitlet-T BIOS ROM files section:
https://fit-pc.com/wiki/index.php?title=Fitlet-T:_BIOS_ROM_Files


Sun Nov 17, 2019 11:46 am
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Joined: Tue Oct 29, 2019 9:54 pm
Posts: 6
Post Re: fitlet-T BIOS Update?
Excellent. Thank you! I was starting to give up hope on this project.


Sun Nov 17, 2019 4:03 pm
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Joined: Mon Dec 25, 2017 4:21 pm
Posts: 384
Post Re: fitlet-T BIOS Update?
Please let us know if the update worked well for you.


Sun Nov 17, 2019 4:23 pm
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