Computer running without the BIOS Chip !!! .BIOS ( Basic Input Output System)

Removing a BIOS Chip when the PC is still running!!!!

When the BIOS work in done and the OS is loaded into RAM Memory then the CPU can take control of the PC.

What is the BIOS?

BIOS stands for Basic Input Output System. It is a small program that is stored permanently on a chip on your motherboard. This program is the first thing that runs every time you turn your PC on. It performs a check (POST) on all the essential hardware connected to your system, such as the memory and CPU, and detects if there are any devices connected to the IDE controllers such as - you guessed it - your hard drive, and tries to identify them. By
entering the BIOS you get the option to modify certain values.


What is the POST?

Power-on self-test (POST) is the common term for a computer, router or printer's pre-boot sequence. The same basic sequence is present on all computer architectures.It is the first step of the more general process called initial program load (IPL)
booting, or bootstrapping. The term POST has become popular in association with and as a result of the proliferation of the PC. It can be used as a noun when
referring to the code that controls the pre-boot phase or when referring to the phase itself. It can also be used as a verb when referring to the code or the system as it progresses through the pre-boot phase. Alternatively this may be called "POSTing."



On power up, the main duties of POST are handled by the BIOS, which may hand some of these duties to other programs designed to initialize very specific peripheral
devices, notably for video and SCSI initialization. These other duty-specific programs are generally known collectively as option ROMs or individually as the video BIOS SCSI BIOS, etc.

The principal duties of the main BIOS during POST are as follows:
verify the integrity of the BIOS code itself
find, size, and verify system main memory
discover, initialize, and catalog all system buses and devices pass control to other specialized BIOSes (if and when required) provide a user interface for system's configuration identify, organize, and select which devices are available for booting construct whatever system environment that is required by the target OS

The BIOS will begin its POST duties when the CPU is reset. The first memory location the CPU tries to execute is known as the reset vector. In the case of a hard reboot
the northbridge will direct this code fetch (request) to the BIOS located on the system flash memory. For a warm boot, the BIOS will be located in the proper place in RAM
and the northbridge will direct the reset vector call to the RAM.

THE GOOD OLD BIOS CHIP.

Category:

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Tags:

• BIOS
• CHIP
• motherboard
• ram
• rom
• slot
• p1
• p2
• p3
• p4
• tft
• video card
• test
• ide
• sata
• multiplier
• frequency clock speed
• POST
• Windows
• error message
• Blue Screen of Death
• application
• dual-core
• front-side bus
• processor
• Troubleshooting
• Hardware
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• dazaro98

[linstonsequeira]

dude restart your PC without the BIOS chip ,then see nothing except a black screen

[dazaro3]

@linstonsequeira

Yes i know ,i,m just showing how it can still run without the BIOS chip installed after its booted up

[PlaystationMasterPS3]

2:25

fatality!

[mkingsmill1]

You should have mentioned that this is the first step of one of the ways to burn a new BIOS chip using a working PC...

People sometimes do this when the BIOS chip is corrupted while re-flashing it for example when you trip over the power cord before the re-flash is completed...

The way it works is you remove the working chip then you put in a dead chip and re-flash it with whatever BIOS you want on the dead chip to make it work again

[hamisgulyas]

hahah, that's not a big deal after windows using it's own IO routins.. but after rebooting you wont able to use the PC without bios..

[zrafferty]

The objective of the bios is to configure the hardware on your ocmputer before the os boots!

once the os boots the computer is no longer using the bios chip you dumbass try to boot it without the bios chip instaolled and you wont get nothing cause the computer will nto know what to do before the os boots and take over the computer

[Maul9999]

Hahaha. Good joke. This is better video ever in my life!

[PashReturns]

@mabvsfd Yeah. Just about any prebuilt OEM Pc from Dell/HP/etc uses soldered bios chips, but most custom built machines today (from my experience) use replaceable bios chips. My budget Biostar motherboard I bought 2 years ago has a replaceable bios chip. It's about 1/10 the size of the chip featured in this video.

[soulblaser]

Wow its amazing to see that the bios is almost being working for starting the computer

Lol and all the rest of time it pumps 0.015 volt for nothoing in return lol

[KEEVVY]

Damn I have a old motherboard from a pentium mmx & doesen't have a bios , only some similary cip on the video card worked ok on a 350W but doesen't work with a 450W psu.

[wfjay93]

ehm mate, the bios is active only when u start ur pc and while doing the memory reading ect...

[mabvsfd]

Most modern BIOS chips ate surface mount now.. thus soldered to MoBo.

[furtherbeyond]

Interesting.