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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cmos jumper location on a toshiba satellite p75-a7200

Where is the cmos jumper located on a Toshiba satellite p75-a7200 laptop computer? I have taken out the battery but can not find where the cmos jumper reset is located on the motherboard.
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35 views

Can a computer that uses EFI/UEFI rather than BIOS run a real mode OS?

Title says it all: could I get away with installing a real mode OS such as MS-DOS on a EFI-based computer? I understand that EFI-based computers still use "BIOS emulation" for compatibility reasons, ...
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63 views

Windows 8.1 Black screen + flickering mouse after update

So, my Windows 8.1 Computer announced that it needed to update, so I hit "Update and Shutdown". Normally, everything would be Ay-Okay, but apparently not this time. This time, whenever I boot my ...
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Error 0x0000005D installing Windows 8 on Virtual Box

I'm trying to install Window 8 on a VirtualBox but when it starts I get an error message: You have to restart your PC Along with the errorcode 0x0000005D. After searching on the internet I ...
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1answer
35 views

VT-x/AMD-V hardware acceleration not operational with VirtualBox on windows 8.1 [on hold]

I have VT-x/AMD-V hardware acceleration not operational with VirtualBox on windows 8.1 I've enabled Intel Virtual technology on BIOS, turned off Hype-V but still there is the error :(... I tried ...
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1answer
34 views

PC does start but cannot boot from USB/CD

Today I got the problem that the password on one of my PCs doesn't work anymore. I know it's the correct one but the system doesn't accept it. So I thought I'll restore a backup. Now I have to boot ...
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22 views

Can I use the second choice in the boot sequence by disabling the hard drive?

I was advised to transfer this question from Stack Overflow to this forum. I bought a used acer laptop to install ubuntu on. And I forgot to check if the bios was protected by a password. It is. (an ...
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12 views

Is it possible to use Wubi in installing Ubuntu in a legacy BIOS Windows 8?

I have a question for you. I have Windows 8 that have a legacy BIOS. And I want to dual booth my laptop with Ubuntu as my 2nd OS. In my first attempt to do that. My OS can't boot any of my OS. So I ...
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14 views

Unable to boot Gigabyte P35K

I use Arch Linux on my laptop. I use Gummiboot as the boot loader, but I use Legacy OS mode because when I try to boot in UEFI mode I get an unsigned image error (something along those lines, I forgot ...
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11 views

Dell Inspiron N4050 BIOS utility cannot display on Keystroke F1, F12

When I switch on my Dell Inspiron N4050, there is no hint to go for bios utility(display key stoke as F1,F12). Even if hit the correct key, it doesn't display the bios utility. Actually this ...
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1answer
50 views

Lenovo Boot Failed

I am Using Lenovo G405s and running Windows 8 on my laptop and whenever I turn on the laptop this error pops up - SATA HDD : WDC WD5000LPVT-24G33T1 boot failed SATA ODD : MATSHITA DVD-RAM UJ8DB ...
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1answer
27 views

HP P6000 boot order not saving

It is Windows 7 on an HP P6000, and the problem is that the boot order does not persist across reboots. E.g.: I go into the BIOS and set to boot from hard drive, then CD/DVD drive, and it defaults the ...
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20 views

Hardware issue with motherboard BIOS resets

I have a motherboard AsRock 970 Extreme 4. BIOS defaults again and again and it doesn't store settings which I set. I tried to change jumper to Clear CMOS position and after that change it back to ...
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7 views

ASUS M5A97 EVO R2 linux flash drive boot issues

I have a FX-8350 with a M5A97-EVO R2.0 motherboard. I'm not able to boot an arch linux nor an openSUSE 13.1 USB flash drives. Both are able to show the booting menu (gummiboot on Arch and GRUB on ...
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12 views

Asus UX31L won't exit from bios setup

I cannot exit the BIOS setup screen which suddenly appeared when opening the notebook lid. Help anyone..?
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0answers
21 views

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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0answers
15 views

Samsung 7 Chronos does not boot

I have a Samsung Notebook (NP700Z5C-S07DE) and it does not boot. Originally it came with Windows 8 and yesterday I updated it to 8.1 (via store) and it did not boot, it's only showing the Samsung ...
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0answers
25 views

SSD is acting strange in Asus K75VM laptop

I bought an Intel 530 SSD, 240GB, which supports SATA 3. The laptop is an ASUS A75VM-TY0877V, running Windows 8.1. There are not many drivers installed, as this is just a clean install (and yes, I am ...
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0answers
20 views

Lag in Windows 8 when playing audio

I ran LatencyMon and these as the following results... CONCLUSION: Your system appears to be having trouble handling real-time audio and other tasks. You are likely to experience buffer underruns ...
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0answers
44 views

BIOS not reaching post

GT70 0NC-012US Issue: BIOS not reaching post Backstory: Several days ago,my slave HD started to lock up the OS with any related programs running from that disk. In an attempt to fix it, i used ...
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1answer
22 views

How the PC boots even after the CMOS battery failure?

Whenever I do switch on, my pc boots straightaway. It doesnt wait for me to press the Power button. When I plug the cable and power on, computer also automatically gets powered. So I replaced the CMOS ...
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1answer
28 views

Is it possible that my laptop can have 2 internal hard drive?

I recently check my BIOS during startup. I saw 2 HDD slot and 1 FDD. One HDD is my default hard drive, while the second HDD do not have a label. I'm wondering if there's a possibility that the one HDD ...
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65 views

locked out of the BIOS by hackers [closed]

Hackers got into the BIOS of my laptop, and actually locked me out of the BIOS. Tech support had to flash the BIOS 3 times before it would 'take'. Can you tell me what to look for in the BIOS or ...
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1answer
42 views

Cannot access BIOS, Windows loads when F2 pressed

I have recently updated an aging XP machine to Windows 8.1. However, when I start it up and try to get the BIOS by pressing F2, it just loads Windows instead. The BIOS was accessible just fine when XP ...
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1answer
46 views

Acer Aspire keeps rebooting when bootable USB inserted

So I have an Acer Aspire V5-131 and long story short (really, it's a long story!), I decided to do a complete wipe of the HDD (using dban). So right now the HDD is absolutely wiped, there's nothing on ...
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Where to report bug of BIOS of Ativ 4 Notebook to Samsung?

I'm looking for a place to report BIOS bug on Ativ 4 Notebook. After updating BIOS from version P01RBG to P08RBG my ssd is working only at SATA2 speed (up to 260MB/s). Before it it worked at up to ...
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4answers
280 views

PC shutting down after 30 minutes, even when on BIOS screen

I have a desktop PC that is just over a year old that I use daily for work. It's running Windows 8.1, has 16GB RAM and an i7 CPU. It has a 256GB Samsung 840 SSD (Windows + programs) along with a 1TB ...
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5answers
650 views

Do POST beep codes also generate a numeric code for a POST test card?

My wife is an American Sign Language interpreter. She is currently interpreting for a student in a computing class. Today they were talking about BIOS and POST beep codes and the student asked the ...
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1answer
39 views

laptop will not boot hdd - samsung 13" ultrabook 5 series

This is a long one. I want to include troubleshooting I did. Im running windows 8.1, I downloaded the Samsung SW updater software and it gives me a whole list of updates including the Bios update. So ...
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1answer
24 views

Computer quickly deactivates after turning on with boot on power in BIOS setting

Computer specs: Lenovo X220i Tablet running Windows 7 64 bit (I doubt knowing the OS will help, but just in case) In the BIOS I have enabled the setting 'power on when AC attached' so the computer ...
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1answer
40 views

How does the computer know how to display text and GUI on the screen?

This might be a stupid and weird question but I really can't sleep until I find the answer. How does the computer know how to display text and GUI on the screen? If I'm not mistaken the boot process ...
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1answer
20 views

HP dv6930es bios upgrade fail

Days ago I was upgrading the bios but a restart fails and now the laptot doesn't starts. When I plug the battery charger the connector lights turn on... but nothing else is running in the laptop. I ...
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1answer
45 views

how do i input the previous Genuine product key in to the bios

I have an HP desktop computer (HP Prodesk 600G1). A lightning strike fried the main board, so I bought a replacement. How do I input the previous Genuine product key into the bios?
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2answers
69 views

How to see ROM size?

In Windows, how can I see the capacity of the ROM chip installed on my computer to store UEFI/BIOS? I would prefer a way using a Windows tool or command without installing any other application.
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46 views

Booting from USB on Asus T100TA

I have read that booting other operating systems via USB is theoretically possible on the Asus Transformer book, but I have not been able to get it to work. The main issue from booting on Windows 8.1 ...
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2answers
67 views

How to activate VT-x on a Acer Aspire E1-571G?

How to activate the hardware virtualization an this laptop if on the BIOS i don't have any options...It's very simplified ( the only tabs on the BIOs are those: I searched and the processor ...
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0answers
9 views

Minimum requirement to boot Ubuntu from GPT partition

My third disk was partitioned as GPT format, and was originally intended only to be used as a storage device, but now I need to boot from it as well. I did put a 200M ext2 boot partition as the first ...
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71 views

Lenovo B490 can not boot up to OS

I am new to this forum, please suggest me if there is need of modification of my first post. I posted it in stackoverflow but I got suggestions to move my problem here. When I open my laptop, it ...
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0answers
12 views

BIOS resets to onboard graphics whenever I power off?

Whenever I power off my PC and turn it back on, I have no signal through my PCI-E card. I have to physically clear the cache by taking the jumpers of the CMOS reset on the motherboard (resetting to ...
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0answers
22 views

stuck on mobo splash screen after CMOS battery removal

I tried removing CMOS battery to remove BIOS password, left out the battery for 30 minutes. Once I powered up, I couldn't get into setup as I believe it couldn't detect my keyboard, it is not USB. I ...
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0answers
26 views

2400 MHz RAM running at 1200MHz? [duplicate]

I recently built my own gaming/ daily use rig check it out here: http://pcpartpicker.com/user/arvan08/saved/YjNxFT You can see that the Kingston 2400 MHz is fully compatible with the ASUS Z97-K ...
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0answers
46 views

Access UEFI BIOS settings

I have a NEC ultrabook with windows 8 installed, and with UEFI bios. I was told that in order to access the BIOS settings I have to press the F2 key as soon as i power it on, however it doesn't ...
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0answers
48 views

how can I remove BIOS boot splash screen on HP Pavilion G series?

In my laptop (HP Pavilion G series) I would like to remove the BIOS logo at boot but I don't know how to. I've tried to flash a new BIOS firmware, but this didn't change the logo. How can I change ...
0
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1answer
31 views

Where is the write-protect switch/screw/jumper on the Samsung Chromebox?

I have a Samsung Series 3 Chromebox, model number XE300M22-B01US, manufactured December 2012. I would like to put coreboot on it so I can single-boot Linux without ChromeOS pulling the sad face at ...
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0answers
68 views

How can I dual-boot Ubuntu 13.10 64-bit with Windows 8.1 in Legacy (BIOS) Mode?

I bought my laptop almost a year ago, came with a FreeDOS OS and I installed Windows 7. Later upgraded to Windows 8 & 8.1. When I installed Windows 8, I had done it in Legacy (BIOS) mode and ...
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2answers
25 views

Two different physical ssd's for two different OS

i have 1st SSD formatted as ext4 and installed Ubuntu 14.04 on it and i plan to get 2nd SSD and format it to NTFS and install Windows 8 on it. Can i switch hard drives in a bios? e.g.: if i want to ...
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1answer
49 views

Laptop USB Boot Option Disappeared

I`ve connected my USB external DVD writer to my laptop, in hopes of booting a recovery disk in hopes of backing up/restoring data from a failing HDD. The issue is that the option to boot from USB ...
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1answer
34 views

AMD Radeon video card/display only works with UEFI Fedora

When I was using my onboard graphics, Intel HD4600, I was able to set up a dual boot on my SSD with a legacy BIOS Windows 8.1 64-bit installation and legacy BIOS Fedora 20 64-bit installation. I put ...
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0answers
19 views

How can I tell if a Windows 8.1 machine has 'full' UEFI?

I've seen a Windows 8.1 machine that has a MBR format drive and a 'Legacy' BIOS, and it has fancy graphics that look like UEFI. If I have a GPT format drive is it still possible to have the old style ...
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0answers
44 views

HP Probook 4520 boots to white screen unable to access bios

I am an IT technician but by no means do I know everything. I have run into a problem that I am unfamiliar with and could use some help. A friend of mine bought an HP probook 4520 from a business that ...