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.

learn more… | top users | synonyms

3
votes
1answer
5k views

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 ...
16
votes
5answers
1k views

How do you explain what the BIOS is to non-Super User?

In a particularly nerdy Facebook status update I mentioned that I had flashed my BIOS. One of my friends asked what the BIOS is. My question is: How do you explain what the BIOS is and does to a ...
8
votes
4answers
2k views

What happens when a computer starts?

I'm trying to understand what happens when a computer is turned on. How the computer works on startup, various initializations that take place, etc. For example, is the bootstrap loader the first ...
6
votes
3answers
16k views

What is DMI Pool Data and why is it verified?

What is DMI Pool Data? Every time a computer here boots up it comes a message that says Verifying DMI Pool Data............. And then it comes: AMD data changed...Update New Data to DMI! ...
5
votes
9answers
11k views

Working hard drive, but “Operating System Not Found”. How to make visible to BIOS?

I've recently been handed a 6 year old laptop (HP Pavilion ZD7000) that I want to repurpose for a family member to use. It was boxed and unused when it was given to me. However, upon boot, after the ...
4
votes
2answers
498 views

Is it possible to boot a consumer i7 system with a Xeon processor and ECC memory?

I have read a couple of blog posts on the Internet that appear to imply one can boot at least some i7 motherboards with unbuffered ECC memory and a Xeon 43xx processor installed. I can boot my MSI ...
4
votes
10answers
6k views

Motherboard won't power-on until it rests for ~10min with no power plugged in

I have a strange ASUS Rampage Formula motherboard issue. When the computer is off — I can't power it on: 'Power' button press gives just a short impulse on fans. When I disconnect the power cable and ...
3
votes
2answers
140k views

How to access BIOS on an ASUS laptop?

I just bought an ASUS laptop with Windows 8 installed. How can I access the BIOS? I tried to click any of the usual keys during power-up: ESC, DEL, F10, F8, F2... non of them work - I just get to ...
3
votes
3answers
916 views

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 ...
3
votes
4answers
7k views

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 ...
2
votes
2answers
30k views

Samsung Series 5 BIOS not detecting any bootable devices

so I have a problem with my BIOS, it doesn't detect any bootable devices from the Boot tab. NOTE: I'm gonna refer to keys and tabs that show in my BIOS settings page for ease of explanation. Please ...
2
votes
1answer
33k views

How to change the BIOS splash screen on HP Pavilion G4 1303AU?

My cousin got a laptop model HP Pavilion G4 1303AU from the government of my state. The laptop dual-boots Ubuntu and Windows 7. Everything is great except the BIOS logo at boot which I would like to ...
2
votes
2answers
1k views

Can UEFI settings brick new laptops?

See closed question - this is a less localised version of the same question. Summary: changing CMS support in BIOS after attempting dual boot Windows 8 and Ubuntu 12.10 bricked my laptop. While ...
1
vote
4answers
37k views

How can I get into BIOS in my Sony Vaio VPCEH25EN

I have a sony vaio, model VPCEH25EN with me. This is the reference (Sony Vaio VPCEH25EN). It came up with a window 7 pre-installed. I want to install linux\fedora along with that. For that I have ...
1
vote
1answer
20k views

“All boot options are tried” after updating BIOS

I have a Samsung series five laptop. I recently updated the BIOS, which completed successfully. I got the following message after it rebooted: All boot options are tried. Press <F4> key to ...
1
vote
3answers
3k views

Do I need UEFI enabled in BIOS for a 4TB external, non-boot disk?

I just want to use a 4TB drive to store data. Do I need to do anything about UEFI in BIOS? When I Google, it always seems to be talking about boot disks larger than 2TB, so I am not sure if this is ...
1
vote
3answers
29k views

How to boot from a CD on an Aptio BIOS?

I have a laptop with an Aptio BIOS and OEM Windows 8. My hard disk drive is defect, but the warranty has expired. So I bought a new hard disk drive, built it in and now I'm trying to install ...
1
vote
1answer
2k views

Does Windows 8 Consumer Preview already support installation on UEFI-capable systems?

I recently bought a new Acer laptop that I believe already has UEFI, so I just want to know if I install Windows 8 Consumer Preview on it, will it be installed as a GPT partition using all UEFI ...
1
vote
1answer
3k views

USB Keyboard won't work after Post but before OS loads

On my new build I just installed Windows 7 x64 and realized that I had put it on the wrong partition. I pop my OS CD back to re-install. My keyboard will work to access the BIOS but when the little ...
1
vote
2answers
13k views

Why would my computer automatically restart after “shutdown” and “sleep”?

After my "firmware lost the hibernation information of my Windows 7 computer" I have fixed everything except the problem that the computer now will not shut off. If I choose "shut down", it shuts ...
0
votes
1answer
1k views

How to re-sign the Windows boot loader to re-enable secure boot on an HP laptop?

I just purchased a "HP Pavilion 15-B055ca (C7C80UA#ABL) Ultrabook" from my local computer store the other day, as well as an SSD hard drive. I removed the original 500GB HDD, installed a 120GB SSD, ...
6
votes
3answers
3k views

How to take a screenshot of my PC's BIOS?

How can I take a screenshot of my PC's BIOS?
4
votes
2answers
659 views

Freeze, sudden reset, SSD no longer recognized by BIOS

How it came about: On a Windows 7 Pro 32-Bit Machine. I was running an incremental backup covering the usual user specific data and a couple of manually selected directories (nothing special: no ...
4
votes
1answer
3k views

How do I reset BIOS to user factory setting

I have a motherboard ECS H61H2-M2 1.0 bios One day I noticed that aero doesn't show up unless I disable the sound. I guess it just need a better driver. So I search for google and find a driver. ...
4
votes
2answers
19k views

How to change/remove BIOS splash screen on Lenovo B460e laptop?

I got a Lenovo B460e laptop yesterday (given by the Tamil Nadu (India) Govt). It has Windows 7 Professional preinstalled. The BIOS has a funny looking flash screen. Is there a way to get rid of it ...
4
votes
2answers
3k views

Want to clear my BIOS password on Toshiba Portege M200

First: I know my BIOS password - but there is no option to remove it in the BIOS (or I don't see it) I can enter the BIOS (v1.40, the newest 1,80 had some problems with upscaling my processor), it ...
4
votes
2answers
2k views

Removing the BIOS password on a Dell Laptop [duplicate]

Possible Duplicate: Reset or remove the BIOS password on my laptop I have a Dell D620 laptop. My younger brother set password by mistake on BIOS Setup and forgot it. How do I reset the BIOS ...
4
votes
3answers
7k views

Can I use a USB monitor (like Mimo) as a primary monitor?

I have an old PC in the den without Video Card (I have to remove it after it start failing). I access it through Remote Desktop. I don't want to invest in a new video card since the PC is old. If I ...
3
votes
1answer
7k views

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 ...
3
votes
1answer
931 views

How to enable Virtualization Technology in Samsung Chromebox

I need to enable Virtualization Technology (VT) in my Samsung Chromebox (Series 5) from Google IO 2012 because of Android x86 emulator from Intel. I am on Developer BIOS, but I have no clue, how to ...
3
votes
2answers
78 views

Limiting RAM and CPU cores

I want to limit the number of CPU cores and RAM which the OS sees. Is there any way of doing this in BIOS ? I tried changing the grub file with maxcpu parameter. Is there something which I can do in ...
3
votes
5answers
2k views

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: ...
3
votes
7answers
1k views

Windows XP - Blue Screen

I have a Dell Latitude D810 I found in our IT storage in basement (computer graveyard) that I was going to use for parts, specifically the keyboard. When I found it, it had a note on it "Blue Screen, ...
2
votes
1answer
909 views

Howto fix RAM Utilization in BIOS? [duplicate]

Begin: Windows 7 Home 32-Bit I addded 4gb of RAM to the computer (3.12gb of 8gb Usable) I upgraded my PC to: Windows 7 Professional 64-Bit Added New Hard Drive Added New Graphics Card End: Windows 7 ...
2
votes
2answers
15k views

Enabling UEFI mode in BIOS after having set it to CSM mode, and not being able to get back into BIOS

I set my BIOS to CSM only mode after being unable to boot into windows after upgrading it to 8.1 and not being able to boot from a USB stick to repair it. I ended up putting in a formatted SSD, and ...
2
votes
0answers
1k views

Dual boot Windows 7 on pre-installed Windows 8 laptop

I have a newer HP laptop with preinstalled Windows 8. I want to dual boot Windows 7 with it, but am unable to boot to the USB. To start with, I downloaded an .iso from Microsoft that I then copied ...
2
votes
2answers
3k views

Installing Windows 7/8 64-bit on GPT partition table without UEFI [duplicate]

I'll start by saying I tried everything I found. And still nothing worked. Preface I've converted my old MBR to GPT partition table. I actually thought I'll just have to reinstall GRUB2 and ...
2
votes
8answers
45k views

Can't Boot from USB - even with Bios set correctly

I can't boot from USB even though the BIOS is set to boot from USB first. Windows Boot manager somehow seems to be taking precedence. I have Windows 7, Linux Mint and Ubuntu installed on my ...
2
votes
3answers
2k views

How do I get my ThinkPad T420s to boot Ubuntu 12.10 (on disk) instead of trying to netboot first?

I just installed Ubuntu 12.10 on my ThinkPad T420s (no other operating system installed), and it is working. But there is a small thing which I just don't like... Everytime I shutdown and reboot, it's ...
2
votes
1answer
914 views

Hyper-V and BIOS Virtualization enabled cause Windows 8 to hang on boot

When I enable both Hyper-V and hardware virtualization in BIOS, Windows 8 hangs after POSTing. It sits at the Windows logo indefinitely, but disabling either Virtualization in the BIOS or Hyper-V in ...
2
votes
0answers
728 views

Brand new Asus U500VZ bricked - can anyone shed light on why? [closed]

EDIT: Replaced question with this one. I was wrestling with this, got to a certain point, changed one BIOS setting (I turned off CMS support), and the laptop died. Blank screen on power on, keyboard ...
2
votes
0answers
409 views

SATA Drive Order Scrambled on Reboot; Windows 7 / Asus P5Q MB

I've noticed that the drive order (when viewing through computer management) on my Windows 7 box is not consistent between reboots. More often than not, the drive order is maintained across a reboot, ...
2
votes
1answer
645 views

Cannot Boot to USB with PCChips A13G+ Motherboard

Basically, I want to install a new OS on an old computer I built a while back. It doesn't have a CD drive. I made a Live USB stick using unetbootin and my main computer has no issues booting to it. ...
2
votes
1answer
4k views

Why can my Windows 7 32-bit only use 2.3GB of RAM?

I have 4GB of RAM installed. According to the "System" section of the control panel, 2.3 GB of the 4 GB is usable. I tried adjusting msconfig.exe, but it made no difference. I changed the "dedicated ...
2
votes
2answers
633 views

Why doesn't my computer work at full speed?

My motherboard is a Gigabyte GA-8I915PL-G with an Intel Pentium 4 630 3,0 GHz which doesn't run at it's default speed. It's currently at FSB 800, CPU Host 200 and CPU 3000 MHz; but sometimes it runs ...
2
votes
1answer
635 views

“Bios Not fully ACPI compatible”

Why would a computer that has been working for month's suddenly start having a "Bios not fully ACPI compatible" blue screen error, when the bios has not changed?
2
votes
2answers
38k views

What does a TPM error message when booting mean?

I have a Gateway MT6728 laptop I was given to have, if I could fix it. When the computer boots, it displays the message: No TPM or TPM has problem. Allegedly, this problem occurred after browsing ...
2
votes
6answers
4k views

Why is my PC boot time slow when USB HDD attached?

I have a USB Hard disk that I am using as a secondary drive just for extra storage. When this is attached and I start my PC the second screen says searching for mass storage dives for about 5 minutes ...
1
vote
0answers
223 views

Dell Latitude wont boot past BIOS after Windows 10 update

I've got a Dell Latitude E6420 laptop that I was running Windows 7 on, I then tried the Windows 10 tech preview which was working fine until the first major update. It had downloaded and done a few ...
1
vote
1answer
136 views

cant connect to any wireless network

today i connected to my friends wifi and try to troubleshooting my old problem low ram in windows 8.1 update for the last trick i went for bios update and hdd regenerator . i have vostro 3300 and ...