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--- notiz:fujitsu-futro-s940 [2026/01/10 17:28] – angelegt clerie
+++ notiz:fujitsu-futro-s940 [2026/01/10 18:48] (aktuell) – clerie
@@ Zeile 1: / Zeile 1: @@
 ====== Fujitsu Futro S940 - D3543-A1x ======
+===== RCV Jumper Positions =====
+On the mainboard is a 2x3 6-pin header with a jumper where one of the center pin is missing.
+{{notiz:fujitsu-futro-s940-rcv-jumper-positions.png?nolink&600|}}
+===== Remove BIOS Password =====
+  * unplug power
+  * open case
+  * set RCV jumper
+    * when the missing pin is at the top, bridge the two left pins with the jumper
+  * plug in power
+  * start system
+  * press F2 to get into the BIOS
+  * save BIOS settings
+  * shut down system
+  * unplug power
+  * put the RCP jumper back to its normal position
+    * when the missing pin is at the top, bridge the center and the right pins at the bottom with the jumper
+  * close case
+===== BIOS Recovery =====
+  * obtain BIOS firmware update
+    * you can download it from [[https://support.ts.fujitsu.com/IndexDownload.asp]]
+    * I used a file called
+      * ''D3543A1xAdminpackageCompressedFlashFiles_V50013R1140_1302609.ZIP''
+      * sha256sum ''1c6b6acd8520d54f5e3ff8fa8030b7340c242ce051e065b16a13581e5b131125''
+  * prepare a USB stick with a BIOS firmware update
+    * MBR partition
+    * FAT32 file system
+    * extract downloaded ZIP archive and just copy all the files to the USB stick
+  * unplug all external devices
+  * unplug power
+  * open case
+  * set RCV jumper
+    * when the missing pin is at the top, bridge the two right pins with the jumper
+  * plug in the USB stick in one of the two USB 3 ports at the front
+    * it does not work with any of the USB 2 ports at the back
+  * plug in power
+  * wait a moment
+  * success is notified with a single beep
+  * progress is notified with many random very short bip
+  * afterwards there is a moment of silence
+  * followed by a pattern of beep - beep - beeeeeeeeeeep - beeeeeeeeeeep
+    * the two long beeeeeeeeeeep at the end are very long both
+    * they are the sign that BIOS recovery was successful
+    * from pluggin in power to this point it did no even take 30s in my case, the manual stated 3-5min
+  * unplug power immediately
+    * if you don't unplug power directly after the two very long beeeeeeeeeeep it restarts the BIOS recovery automatically (and you might not want this)
+  * remove the USB stick
+  * put the RCP jumper back to its normal position
+    * when the missing pin is at the top, bridge the center and the right pins at the bottom with the jumper
+  * close case
+  * plug in power
+  * the system should boot again
+    * first boot takes quite a long time
+    * but it displays the Fujitsu logo quite early when it is plugged to a monitor, so that is a good sign
+===== BIOS Serial Console Redirect =====
+In the BIOS one can configure the BIOS to expose itself via the COM1 serial console instead of one of the Display Port outputs.
+We found out that it is not possible to boot from a USB stick while the BIOS is redirected to the serial console.