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--- devices:dell_latitude_5591_spinesnap [2025/12/31 19:27] – Sean Rhone
+++ devices:dell_latitude_5591_spinesnap [2026/01/28 22:34] (current) – [Notes] Sean Rhone
@@ Line 1: / Line 1: @@
+====== BIOS Mods ======
+  * [[bios:notes:umaf|UMAF]]
+  * [[bios:dell_latitude_5591#bios_downgrade|1.1.6 Downgrade]]
+===== Notes =====
+  * HT disabled seems to stop desktop-environment startup sound stutter ((canberra on Xfce, Ubuntu's start-up sound))
+  * VR Current Limit ''1020'' = IccMax 255A
+  * Disable 2 ''Hardware Prefetcher'' settings ((https://docs.oracle.com/cd/E19962-01/html/821-1088/gljyu.html, https://linustechtips.com/topic/1201012-hardware-prefetcher-and-adjacent-line-cache-enabled-or-disabled/))
+  * TODO: Move above to [[bios;dell_latitude_5591]]
 ====== Dell Command Configure ======
-  * [[https://dl.dell.com/FOLDER12703333M/1/command-configure-5.1.0-23.el9.x86_64.tar.gz|command-configure-5.1.0-23.el9.x86_64.tar.gz]] (openSUSE/RPM)
+  * [[https://dl.dell.com/FOLDER12703333M/1/command-configure-5.1.0-23.el9.x86_64.tar.gz|command-configure-5.1.0-23.el9.x86_64.tar.gz]] (''rpm'')
-  * [[https://dl.dell.com/FOLDER12705845M/1/command-configure_5.1.0-6.ubuntu24_amd64.tar.gz|command-configure_5.1.0-6.ubuntu24_amd64.tar.gz]] (Ubuntu/deb)
+  * [[https://dl.dell.com/FOLDER12705845M/1/command-configure_5.1.0-6.ubuntu24_amd64.tar.gz|command-configure_5.1.0-6.ubuntu24_amd64.tar.gz]] (''deb'')
   * [[https://aur.archlinux.org/packages/dell-command-configure|AUR Source URLs]]
@@ Line 26: / Line 38: @@
   * [[linux:distros:opensuse_tumbleweed_xfce|openSUSE Tumbleweed (Xfce)]]
+  * If not removed, ''instsvcdrv.service'' lingers and increases boot time slightly
   sudo zypper remove --clean-deps 'command-configure' 'srvadmin-hapi'
@@ Line 34: / Line 47: @@
   * Last tested BIOS: ''1.39.0''
+  * :?: ''FanCtrlOvrd'' likely should be ''Disabled'' for [[linux:notes:drive_wipe#dell_fan_speed|firmware thermal profiles]]
   sudo fwupdmgr set-bios-setting 'TypeCPower' '15W' --no-reboot-check