The BIOS (basic input/output system) of an IBM-compatible PC is a ROM which performs the POST (power-on self-test), initializes the peripheral devices, and provides a basic firmware interface.

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Preventing ASUS BIOS from booting when I press keyboard

My (brand new) ASUS BIOS boots my machine when I press my (PS/2) keyboard, and I want to get rid of this "feature," but I can't seem to find a setting for it in the BIOS menus. Can it be done? The ...
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15 views

CSM or Legacy Boot option not available on devices pre-installed with Windows 8

The CSM or Legacy Boot option is usually found in Bios, Advanced, System Configuration. However, it seems to me that on laptops pre-installed with Windows 8/8.1, there is no such option. I have just ...
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3answers
59 views

How to change BIOS/UEFI settings when keyboard is disabled during boot

During debugging a Linux boot problem, I disabled USB power on boot in the BIOS. This was effectively an irreversible change, since I can't enter the BIOS anymore now. My motherboard is Asus Z97-A. I ...
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1answer
14 views

Medion PC turning on but not booting up

A colleague of my mother has a problem with her pc and asked me to look at it. Now i've tried quite a few things but can't get it to boot up.. It is a medion pc and as soon as I push the power button ...
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54 views

No display after CMOS and BIOS reset

I've got a very weird problem here, sorry to have such a specific case but I'm not sure what to do at this point. So, this is for context I don't think it's related to the problem: I had this problem ...
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27 views

Booting computer without graphics card

As a little hobby project I want to build a pfSense router with some scrap I found and some parts I bought on eBay. The motherboard is a MS-7728 Ver 2.0. The problem is that the motherboard only have ...
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33 views

Lenovo desktop stuck on 'lenovo' boot up screen?

I've got a computer we use at work- Lenovo C260 desktop (it's an all in one non touch screen), approx 18 months old. Running on windows 10 I believe. For the last few days it has been getting stuck on ...
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1answer
33 views

Why does removing the CMOS Battery reset settings / time?

Why does the act of removing the CMOS battery reset BIOS settings and/or clear date and time settings? The settings are probably not stored "in the battery"...
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1answer
44 views

Are Kernels hardware specific?

From my understanding, the Kernel provides the link between software and hardware, and therefore the Kernel must direct system calls being made by OS applications, correct? So would different I/O ...
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1answer
20 views

SSD not mounting in UEFI secure boot off

I have a new Dell XPS15 which came with Windows 10 preinstalled. I completely wiped it and installed Slackware Linux. I can only run Linux in UEFI Secure Boot OFF Mode or Legacy Mode. When I start my ...
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1answer
51 views

How do I auto turn-off a DOS ONLY machine using software? The PC has NO POWER SWITCH

I have an old PC that has no power switch (it's a long story). It is running DOS 6.20. I am looking for an interrupt call or anything to turn off the computer using software as I need it to turn off ...
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9 views

ASUS X101CH Shuts Down During BIOS Update

I'm updating the BIOS of my ASUS X101CH Eee PC netbook using a flashable DOS-based utility from the ASUS website and in the middle of the update I accidentally moved the socket outlet away from the ...
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37 views

Custom build pc is bugged?

Every once in a while my computer loses internet connection for some weird kind of reason. When I go to e.g. 192.168.178.1 it actually shows the correct login page for my modem but it just won't ...
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1answer
60 views

Acer Aspire E1-570 Black Screen, Faulty Bios?

Good morning everyone. I am having a bad time trying to fix my laptop Acer Aspire E1-570. I have a black screen of death, when I press the power button the fans start spinning for a second and then ...
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0answers
16 views

New headset, cannot find boot option

I have a new void headset, but I am having the issue where the driver signature cannot be verified. I tried the general solution which is pressing f8 to disable the signature command in the bios setup,...
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0answers
29 views

Why can I boot from a USB device without “making it bootable”?

It seems like you can boot from a USB device without a bootloader to me. Even my 6 years old computers that still have a BIOS. From what I read the BIOS simply looks for an mbr, loads it and ...
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36 views

How to upgrade UEFI bios without battery in Acer laptop?

My laptop is Acer Aspire V5-473PG and I used windows 10 Pro 64-bit. And my battery is already dead around 1 year. Now, when I turn on my laptop, it always shows something like this : Boot media is ...
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15 views

PC won't POST temporarily after power restored to board

Not a particularly catchy title. I have an (unrelated) issue that means I have to kill power to my PC entirely (by switching off the PSU) after shutdown (it turns itself on, I'm not sure why). ...
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1answer
69 views

Motherboard is showing 24v instead of 12v

I have put together a new PC build and when I turn on the machine it's showing me the following error/warning: "Asus anti-surge was triggered to protect system from unstable power supply" Besides ...
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31 views

Blue screen error after replacing CMOS battery

I have two problems with my desktop. 1. CMOS battery down hence date and time reset every time after PC shutdown. 2. Display does not appear with beep sound. I have tried by removing RAM and ...
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0answers
17 views

Computer doesn't remain in power-off state

I can't hibernate my computer. After finishing hibernate and powering off, it powers on again and boot. All options in BIOS known to me are disabled: Motherboard is Gigabyte GA-B85M-D3H How to ...
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42 views

OS won't load after BIOS update (CMOS Settings Wrong)

I bought a new PC about 3 months ago. The OS was Ubuntu, so I installed Windows. After that, the audio started to fail. It would work normally until reboot, then it would stop working even with the ...
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2answers
88 views

How to access BIOS to boot from USB on Lenovo X230i?

I cannot enter BIOS when the laptops turns on so that I can boot Ubuntu from a USB pendrive. I've tried to press Enter as suggested on some webpages as well as randomly press function keys just ...
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1answer
45 views

Computer refuses to boot from any Windows live media?

I have a Dell Optiplex 760, which is currently running Ubuntu 14.04. I have been trying to install Windows 10 on my computer for days. I have written the Windows 10 ISO (downloaded directly from the ...
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1answer
35 views

Cant access BIOS or boot after pm-hibernate on Ubuntu 15.10

ACER ASPIRE 4560-Sb601 - Ubuntu 15.10 I executed the command "sudo pm-hibernate" on Ubuntu 15.10 and could not access BIOS or boot anymore. Grub2 appears, but boot stops with the following lines: ...
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37 views

Unable to boot on Debian Live CD on my HP Laptop - “Selected boot image did not authenticate”

I'm trying to boot from a Debian Live CD (the debian-8.5.0-amd64-DVD-1.iso available here: http://cdimage.debian.org/debian-cd/8.5.0/amd64/bt-dvd/). It doesn't work when I just let the computer start ...
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15 views

Laptop not booting : queries about boot process

I had a really old Dell Latitude C500 Laptop lying around, and for some reason I decided to dismantle it completely and put it back together (following this manual). When I reassembled and tried to ...
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14 views

Dell 7720 - 8 beeps screen failure after bios POST

So there are a couple of questions around here about dell laptops having 8 beeps, all pointing to the screen failing or being disconnected. My screen was broken, thus I removed it completely, ...
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18 views

My BIOS sometimes recognizes only half of available RAM

I have been having RAM problems for 4 days now. Of 4 installed GiB RAM, sometimes 4 GiB are recognized by BIOS, sometimes only 2. 2 days ago I cleaned the copper contact points of the RAM modules ...
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1answer
47 views

Better way to update an USB ISO without unplug

I'm working creating a small O.S. When I make changes, I create and ISO. This ISO works propertly with qemu, but when I have to test some hardware issues, I need to boot it on another computer. So: ...
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21 views

H81M-HDS Intel Pentium G3220, not Posting, and no video

I am experiencing issues with a, H81M-HDS motherboard with an Intel Pentium G3220, when I press the power button, the fans spin for half a second, it turns off, does it again, and will then spin the ...
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94 views

How to install coreboot/libreboot on Thinkpad x220

I am interested to replace my BIOS on my Thinkpad x220, because I want to remove the white list for other wifi cards. At first I was thinking to use a modificated BIOS from one of these russian boards,...
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58 views

SSD detected on my Windows but not detected on BIOS boot

My Notebook had problem with boot priority. So I have HDD on main port and I just added SSD for my second port (replace my CD/DVD drive). I had problem with my main port so i cant replace it for SSD. ...
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1answer
45 views

Where is my 500GB?

I have a 500GB Windows 10 laptop. I have installed manjaro i3 on it. Everything was working fine but when I restarted my computer I saw this I booted archiso with UFI and list partitions(2) What ...
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2answers
24 views

How does the mbr transfer it's control to the bootloader

What i know is the following Upon start-up, the BIOS goes through the following sequence: 1.Power-on self-test (POST) 2.Detect the video card’s (chip’s) BIOS and execute its code to initialize the ...
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27 views

Windows 10 suddenly stopped dual booting with Ubuntu

I have a Toshiba Satellite C55-A with Windows 10. SOme time ago I successfully installed Ubuntu 14.04LTS, when I still had windows 8 if I remember. After being forced to install Windows 10, I haven'...
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25 views

Noisy HP DL360 server and DMESG errors

I purchased a HP ProLiant DL360 server for use with Solaris testing because it was OEM hardware. The server sits in my basement and its kind of noisy. It sounds like a mini high-bypass jet engine, ...
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30 views

Computer fails POST

I have a Dell XPS630i that fails The POST when powered on. I recently upgraded to an SSD with 64-bit windows 7 and after having some problems with the black screen of death (turned out that two ...
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1answer
48 views

Disk boot option missing. Booting with UEFI mode and was working

I have an MSI Ghost Pro (GS60). I can't get it to boot from my SSD. "Hard Disk" and "USB Hard Disk" and others show in the boot options. With my BIOS, it shows more information about the disk and a ...
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1answer
28 views

Boot loop after restart pc

Is there anyone who has an idea why my pc is keep restarting? Kinda disturbing when i try to intsall new os on new SSD . And every time i restart the pc either via the reset button or from the Windows,...
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0answers
25 views

Can't access bios (even though I can access windows repair)

I have two HDD in my MSI laptop. In one of them Windows 10 (with its own efi partition) is installed. In the other one I tried installing Fedora (again, with its own efi partition in said hdd). After ...
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0answers
118 views

Error “All settings were reset to default values” on startup

My computer has been acting strangely in the last few months. It's showing a message where it says this So my question was, how can I prevent this message from popping up every time I start my ...
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1answer
45 views

Asus X552V - Cannot Boot from USB

I want to install windows 7 from USB, but when I go in bios I do not have a boot from usb option. My notebook is Asus X552V. Where might I find the option in the BIOS menu for this? How can I boot ...
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0answers
34 views

How does BIOS or Grub loader utilize the GPU?

How is the GPU utilized by BIOS, Grub loader or any "Pre-OS" activity? I think I have a GPU overheat issue that leads to system shutdown. The problem happens, if I stay in BIOS, Grub loader and Boot ...
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0answers
33 views

Can't Access the BIOS

For some reason, my computer will boot and run Windows (only OS) fine but when I spam the delete key on startup to enter the BIOS my computer turns on but nothing appears on the screen (my monitor ...
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0answers
29 views

MacBook EFI, no sound. Convert to hybrid GBT/MBR?

I only use Windows on my MacBook. So I made a clean installation of Windows without dual-booting OSX. This installation resulted in the Mac is now booting in EFI mode, which led to the sound and ...
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0answers
44 views

Illogical random shutdown behavior, No overheating, no Hardware faliure

I am facing an illogical problem on my wife's dell inspiron. The computer started to shutdown randomly while she was working. The problem started to evolve until the day when the computer always ...
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0answers
15 views

BIOS shows zombies boot options

I installed Ubuntu in dual boot with Windows 10 some time ago, then I didn't need it any more and so I cleared the partitions where it was installed, but now I'm noticing that the boot still shows, ...
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1answer
57 views

Cpu overheating and bios cpu fan error

I have an i5 2550k a p8z68 mobo, and a Corsair h100 liquid cooler. As of last night the CPU started throttling and I guess overheating after 4 years no issues. Whatever, i tried reapplying new TIM/...
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6 views

My hp laptop G6 2304tx shuts down suddenly after installing ubuntu along side previously added Windows 8.1?

My laptop is model hp 2304 tx.It had windows 8.1.I use grub2 for booting.It works fine on ubuntu but it shuts down suddenly while using Windows 8.1.It is happening recently after I installed ubuntu ....