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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Keyboard doesn't turn on when computer turns on

When I turn my computer on, my keyboard is off so I can't change the boot order, and other settings. I put in my XP installation disk once and my keyboard turns on when it gets to the screen that says ...
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LENOVO desktop computer only boot with F12

I have a new desktop computer: a LENOVO model 3493-BFG with Windows 8. I started the computer without any problem. Once Windows was automatically set up, I created a recovery media (an USB ...
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How do I get a Zotac MAG HD-ND01 to boot from a USB stick?

I have a Zotac MAG and there doesn't seem to be a way to get it to boot to a USB stick or drive via the boot menu. How can I set this thing to boot from a USB stick?
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Why would my computer all of sudden reset clock, show new boot screen, and run fans loud?

I bought a new computer one year ago, it's worked fine (Windows 7). A few months ago, it started to not boot unless I removed my USB headphones connected to a USB hub, everything else worked fine. ...
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How to edit BIOS information for a virtual machine in VMWare?

The manufacturer, as set in the BIOS of my VM, is "VMWare". I want to change that to other string. How to do that?
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Computer Freezes navigating BIOS

Computer started acting up, and this is where I am. I have only the CPU, RAM and video card plugged in, the main power line to the mobo, the CPU power line, and the PCI-E to the video card. Specs: ...
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PSU makes a noise, Changing BIOS setting to shutdown on fan failure. Now the computer won't start

This is my scenario: The PSU is making a whining noise. It's a very high pitch noise, load enough to make it easy to hear it. It had been doing this for a while. I thought that I would buy a new PSU ...
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HP Spectre x360 How do I get into the BIOS?

My HP Spectre x360 boots really fast and I can't figure out how to access the BIOS screen?
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Do (USB) drives need a master boot record to boot in UEFI mode?

I was reading this tutorial and this (Option Two from there) and as far as I understand, making a Windows USB drive bootable for UEFI requires: rewriting the partition table and formatting as FAT32 ...
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How to enable Intel VT-x?

I have a CLEVO w150erm, with a i7-3610QM processor, which supports Intel VT-x. However in order to use it I have to activate that option in the BIOS (or so that's what I believe) but I simply can't ...
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Updating BIOS on DOS

I am using a Gigabyte GA-Z68MA-D2H-B3 motherboard on my computer. I wanted to migrate from Award BIOS to UEFI. I downloaded the binary file from the Gigabyte product page, but when I tried to run, it ...
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No discs found when trying to install Windows 8 with UEFI

I have a Vizio Notebook (CN15-A5). It came pre-installed with Windows 8 x64 and is taking advantage of UEFI out of the box. The BIOS (APTOS AMI) is in Secure Boot mode with the OS selected as "Windows ...
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Underclocking without BIOS option

I have never over/under/downclocked my laptop, however it is seriously suffering from overheating. I have cleaned it out and am running the fan at full speed the whole time. I also have turned the ...
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New 3TB HDD, can see full 2.7TB in Linux and Windows, but shows up as 801.6GB in BIOS

I recently purchased a Seagate Barracuda 3TB drive (ST3000DM001). After installing it, my BIOS recognized it but reported the size as 801.6gb. I went ahead and booted into Linux anyway (Ubuntu 11.10 ...
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How to boot from DVD when BIOS doesn't seem to give the option to change the boot source?

Have just bought a 2nd hand PC with Windows 7 Ultimate installed. I want to boot off DVD, but when the DVD is in the drive Windows still boots up. I hit < f2 > to get into the BIOS menu, and it ...
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508 views

Intel DH61AG CPU, fans, and voltages not reading in BIOS

I'm looking for the cause and/or fix of an issue when during start up of the DH61AG board the fans go full speed as they normally do but stay at full speed rather than slowing. In the BIOS the PC ...
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481 views

Brand new computer powers off after a few seconds

I bought a new computer and I'm almost ready to send it back to the shop. Here are the specs: Motherboard: Asus Crossfair IV Formula Processor: AMD Phenom II X6 1100T Black Edition RAM: 4 x 4GB CL9 ...
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1answer
8k views

PC power supply & normal range for voltages reported in BIOS hardware monitor?

I'm trying to diagnose whether my computer has an ample power supply. Sometimes when I play a video-intensive game, both monitors lose the video signal, even though the computer remains on and sound ...
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CPU Temperature required for auto-shutdown

At what temperature do most motherboards/cpus power down to prevent damage? And what determines this? Is it the bios, the motherboard, the cpu itself? I have a cpu that stays on in the bios until ...
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How do I reset/update my BIOS for Optiplex GX280?

So far this has been a nightmare for me, which has been frustrating me constantly. I am using Dell Optiplex GX280 with Windows XP home edition, which is running a BIOS version A04. Recently, i've ...
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260 views

My BIOS is gone

After GRUB replaced my MultiBoot Menu and I couldn't change my Boot Device, I got sick of it and opened nautilus and deleted the /boot folder, and I thought doing that would make it go and let me open ...
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What does this beep code mean?

When I wanted to start my laptop today (an Acer Aspire 8920G), the laptop started beeping. I know this beeping is a POST error code, but I can not figure out which one it is. The motherboard of the ...
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After being shutdown, why won't my computer start without leaving the power unplugged first?

For the past few months, whenever I shut my computer down fully and leave it off for more than a few minutes, it won't start back up without an elaborate ritual. This is an ordinary shutdown, so the ...
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UEFI vs non-UEFI options in boot menu

I just built new PC based on Asus Z87-Plus motherboard and in BIOS boot menu I now have my removable devices listed twice - once as a device itself and once with "UEFI: " prefix. It looks like this ...
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296 views

Dell Inspiron 14r doesn't boot

I have a Dell Inspiron that doesn't seem to get past the initial POST - it turns on and displays the logo, and the loading bar fills about 60%, but can't boot into the OS, enter Setup (F2), or display ...
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How can I be sure that the motherboard is dead and it's not another issue?

So I have and old computer with and Intel D101GGC motherboard and a pentium 4 cpu and award bios, with a long repeating beep and not passing POST. I tried: RAM checking, they are good and working ...
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170 views

Does the BIOS encrypt the password?

Does the BIOS encrypt the password? If not, can it be found with physical access? If yes, which algorithm does it use?
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BIOS continuously pressing a key internally filling keyboard buffer

I have the strangest problem I have ever faced and I can't figure out what's going on. It started today after a few hours of full shut down. It had occurred once a few weeks ago, but I can't remember ...
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2.1TB limit on BIOS?

While checking out this 3TB 7200RPM drive as a candidate for my hardware RAID array, I saw the product video and at about 1:40 into the video, the guy says that BIOS can't handle more than 2.1TB of ...
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141 views

Can I trust this weird BIOS Message ending in 'thanks'?

So I started up my laptop today and was greeted with the following message (not a direct quote): The type of the AC adapter cannot be determined. This may interfere with your computer's performance. ...
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646 views

Memory Overclocking

How do I overclock my system memory (DDR3 2000) to 2000MHz? I recently assembled a new system with the following memory and motherboard: Patriot Viper Xtreme 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 ...
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206 views

RAID Hard drive partition from one motherbord to another?

I had ASUS P5K3 Deluxe/WiFi-AP which was working for 4 years. Yesturday it burned out... literaly with smoke and fire... So I plan on getting DFI LanParty LT X48-T3RS (Intel X48, DDR3) as a ...
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Frequent Windows 7 Blue Screens

My computer was all bought in October 09 and assembled by myself. I haven't had any problems until I moved from North Carolina to New York. Now, I've been getting blue screens such as ...
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System Works Fine but only after Very Long BIOS POST Times?

I built this AMD XP64/XP32 system in November 2008. It runs well, but it does not start well. Windows Restarts are fine, but cold starts average 4-5 minutes to POST, with the record-holder so far ...
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Is the motherboard the cause of these errors?

Motherboard is : ASUS A7N8X-E Deluxe, Rev1.01, On start up get: "cmos checksum error - defaults loaded" error BIOS is reset everytime and can't boot to Windows off HDD. POST report is ok once I ...
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Get rid of boot priority changed press f1 to continue message

When I boot up my computer and my phone is charging or something via usb, a message comes up that forces me to press f1 to continue, due to the boot priority changing. I'm on a nforce 750i motherboard ...
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BIOS Recovery for Lenovo Ideapad U410

I'm stuck while trying to recover an corrupted EFI / Insyde BIOS. Right now the laptop is in a state, that when the power button is pushed, the computer turns on and immediately off again. I ...
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Should I enabled or disable xHCI hand-off in BIOS setup, when running Windows 7?

I have a Jetway NF9E-Q77 motherboard which supports USB 3.0. An Intel driver is available to enabled USB 3.0 support in Windows 7. Assuming the driver is installed, should xHCI hand-off be enabled ...
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385 views

How to flash Dell Precision 390 from linux (debian)

I am trying to update my BIOS: $ sudo dmidecode -s bios-version 2.1.2 With a newer one: 2.6.0. I went to this page Dell Precision System BIOS, 2.6.0 After downloading the file WS390-020600.BIN, ...
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My PCIe video card does not work in POST, only comes on when Windows loads

I have an ASUS Maximus V Extreme motherboard which has onboard video. There is an Asus GeForce GTX 670 in PCIe slot 1. In the BIOS, I have PCIe selected as the preferred GPU. I've tried disabling ...
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I flashed the BIOS on my ASUS P5Q motherboard and now it won't boot

i recently got round to upgrading from Windows XP to Windows 7 64-bit and when i was installing all the new drivers for Windows 7 i thought i would take the opportunity to update my BIOS as well - big ...
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Is BIOS used after OS fully loaded?

Obviously, I can't get to the BIOS after the OS is loaded. But is it somehow possible to invoke BIOS functionality/interact with it from within the OS? Does the OS do it? Is it possible for a user ...
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Windows 7 SP1 installation hangs during boot when CF card present in sata card reader

as per subject I have a nasty problem with Windows 7 and a CF card in a SATA card reader, first some details. Hardware specifications: Asus P8C WS (Intel C216 chipset) with BIOS version 3202 ...
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How to get past Thinkpad T530 PXE prompt to BIOS setup?

How do I get to the Thinkpad T530 BIOS setup? As the laptop turns on I press ENTER when prompted, then press F1 when prompted, but that takes me to the Intel PXE prompt. If I hit CTRL-S I get into the ...
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Do PCI / PCIe buses and devices always enumerate in the same order?

I am looking into a situation where there are multiple, identical (National Instruments) PCIe DAQ modules in a PCI/PCIe chassis, connected via either a single or dual chassis controller. In the worst ...
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How to install Windows with no CD drive boot option in BIOS?

I have a new computer which I built from scratch and I am trying to install a copy of Windows Vista on it. I am able to get to the BIOS and change the boot options which are as follows.. -Built-in ...
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What does the BIOS setting XHCI Pre-Boot Mode do?

I have a BIOS setting called XHCI Pre-Boot Mode. If I have this enabled USB devices which aren't plugged in at boot are never recognised, if I set it to Disabled then USB devices work normally. The ...
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226 views

Very random BSODs and BIOS hangs

I get BSODs after the computer runs for anywhere from a minute to a couple of hours. I have had the problem for some days now, and it has become progressively worse. Sometimes, it hangs on the boot ...
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Is there a way to make my Windows know about my BIOS settings?

For a very specific situation on a project, I need to make a Windows machine know about some specific settings at the BIOS(such as Enabled/Disabled PXE boot, Boot Sequence, Bios Version, and ...
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BIOS without Keyboard

My server is in another city and sometimes loses power. It is headless and I only use it via SSH/FTP. I have found a way to turn it back on after the power returns, but I need to press F1 or F2 with ...