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--- other:bios [2014/04/01 13:32]
jypeter Added diags start key
+++ other:bios [2022/01/07 10:02]
jypeter [Determining the BIOS version]
@@ Line 1: / Line 1: @@
-====== BIOS notes ======
+====== BIOS, diagnostics and other start-up notes ======
-===== Entering the BIOS =====
+<note important>
+You can also run the **built-in diagnostics** in case of a [[other:win10crash#hardware_crash|hardware crash]]</note>
-Power off the machine, then power it **and** press the appropriate key at the same time
+===== Crashed computer =====
-|  Dell  |  F2  |
+You can try the standard [[https://www.reddit.com/r/techsupport/comments/12nyre/30_second_power_button_trick/|hard reset trick]]
-|  HP  |    |
-===== Choosing the boot media or the diagnostics =====
+More details in:
-|  Dell  |  F12  |
+  * **Dell**:
-|  HP  |    |
+    * [[https://www.dell.com/support/contents/fr-fr/videos/videoplayer/how-to-recover-from-booting-issues-using-the-bios-recovery-tool/6079779755001|How to recover from booting issues using the BIOS Recovery Tool]] video
+    * [[https://www.dell.com/support/kbdoc/en-us/000129583/no-post-no-power-no-video-on-a-dell-desktop-computer|No POST, No Power, No Video on a Dell Desktop Computer]]
+    * [[https://www.dell.com/support/kbdoc/en-us/000141584/how-to-troubleshoot-a-no-post-issue-on-a-dell-notebook-pc|How to Troubleshoot a No POST Issue on a Dell Notebook PC]]
+  * **HP**:
+    * [[https://support.hp.com/us-en/document/c04718479|HP PCs - Computer Does Not Start (Windows 10, 8)]]
+  * **Intel**:
+    * [[https://www.intel.com/content/www/us/en/gaming/resources/why-wont-my-computer-turn-on.html|Troubleshooting - Why Won't My Computer Turn On?]]
+===== BIOS =====
-===== Enabling boot on a USB drive =====
+==== Determining the BIOS version ====
-==== Dell ====
+The BIOS version is usually displayed quickly when a computer is booting, and when [[other:bios#entering_the_bios|you are in the BIOS options screen]]
+You can also get the BIOS version when your operating system is running!
+=== From Windows ===
+Use the [[https://support.microsoft.com/en-us/topic/description-of-microsoft-system-information-msinfo32-exe-tool-10d335d8-5834-90b4-8452-42c58e61f9fc|msinfo32]] command and check the //BIOS version// line in the //system summary// screen
+=== From Linux ===
+Use the [[http://manpages.ubuntu.com/manpages/xenial/man8/dmidecode.8.html|dmidecode]] command: ''dmidecode -s bios-version''
+<code>$ sudo dmidecode -s bios-version
+[sudo] Password for your_login:
+.10.0</code>
+==== Entering the BIOS ====
+Power off the machine, then power it on again **and** press repeatedly the appropriate key several times while the computer is starting, until you see the BIOS options screen. This should take place **before** you have to type the Windows bitlocker password, or the Linux (de)crypting password
+|  Dell  |  ''F2 ''  |
+|  HP  |  ''ESC ''  |
+==== Enabling boot on a USB drive ====
+=== Dell ===
 Settings => General => Boot Sequence: //USB Storage Device// must be selected, and in the first place of the Boot Order
+==== Updating the BIOS ====
+  * **Dell**:
+    * Healthy Windows computer: check the [[https://www.dell.com/support/home/en-us|support page]]
+    * Crashed Windows, or healthy (or crashed) Linux computer: use a USB key to update the BIOS, following the steps in the [[https://www.dell.com/support/contents/fr-fr/videos/videoplayer/how-to-recover-from-booting-issues-using-the-bios-recovery-tool/6079779755001|How to recover from booting issues using the BIOS Recovery Tool]] video
+  * **HP**:
+<WRAP center round important 60%>
+If the BIOS update does not seem to work (no update takes place), check this [[https://wiki.lsce.ipsl.fr/pmip3/doku.php/other:win7towin10#bios_update|HP BIOS update]] section
+</WRAP>
+    * [[https://support.hp.com/us-en/document/c00007682|HP Consumer Desktop PCs - Updating the BIOS (Basic Input Output System)]]
+    * [[https://support.hp.com/us-en/document/c00042629|HP Consumer Notebook PCs - Updating the BIOS (Basic Input Output System)]]
+==== Notes ====
+There are lots of HP BIOS details in [[http://h10032.www1.hp.com/ctg/Manual/c06399361|HP PC Commercial BIOS (UEFI) Setup - Administration Guide]] (pdf document)
+===== Other start-up related notes =====
+==== Choosing the boot media or the diagnostics ====
+|  Dell  |  ''F12'' (enter the //One-time Boot Menu//)  |
+|  HP  |  ''ESC'' and then ''F2''  |
+==== Booting in safe mode ====
+<WRAP center round tip 60%>
+Safe mode <=> //Mode sans échec//
+</WRAP>
+=== Windows 10 ===
+Read the [[other:win10crash#the_windows_recovery_environment_and_the_safe_mode|Windows Recovery Environment (Windows RE) and the Safe Mode]] notes
+=== Windows 7 ===
+Power off the machine, then power it **and** press the appropriate key at the same time
+|  Dell  |  ''F8 ''  |
+|  HP  |    |
+See also [[/other:win7misc#performing_a_clean_boot_in_windows|Performing a safe clean boot]]
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