What to do if the BIOS can't detect the difficult disk The challenging disk was just repaired. In the event the hard disk is plugged into a different machine, it will not work on this computer. When the tough disk on yet another laptop or computer is plugged into this, it will not be detected. Why, why? Difficulty added: The SATA interface has been entirely changed. I also attempted it, even if the hard disk can not be detected, it also understands 1. The motherboard chipset is too old 2. The bios is as well old 3. The challenging disk cable is broken and poor make contact with four. The power supply from the challenging disk is insufficient 5. The challenging disk interface of the motherboard or challenging disk is faulty 6. The motherboard challenging disk handle Chip failure 7. The key and auxiliary challenging disk jumpers are incorrect, or the stat1 and stat2 choice jumpers are incorrect. 8. Really hard disk failure is what I can think about. Warmly welcome good friends to Dazhan Hongtu Computer Finding out Region. I wish you a pleasant browsing. Not simply can BIOSROM chips be seen on the motherboard, but additionally how the BIOS management function determines the performance with the motherboard to a fantastic extent. The BIOS management functions contain: 1. get back data for ntfs interrupt service system is essentially a programmable interface among software and hardware in the microcomputer method, that is primarily used to connect the program application function with the microcomputer hardware. By way of example, WINDOWS98 manages services for example floppy drives, optical drives, and difficult drives, and interrupts settings as well as other solutions and applications. two. BIOS program setup program: The configuration records with the microcomputer elements are placed within a writable CMOSRAM chip, which primarily saves the basic facts with the technique, CPU qualities, soft and challenging disk drives as well as other elements. The 'system setting program' is installed inside the BIOSROM chip, mainly to set numerous parameters inside the CMOSRAM. This plan can enter the setting state by pressing a important when beginning up, and provides a fantastic interface. three. POST power-on self-test: Just after the personal computer is connected for the power provide, the technique initially checks the internal equipment by the (POWERONSELFTEST, power-on self-test) system. Typically the total POST self-test will involve testing the CPU, 640K simple memory, extra than 1M of expansion memory, ROM, motherboard, CMOS memory, serial-parallel port, graphics card, floppy disk subsystem and keyboard, after the issue is discovered in the self-test , The system will give a prompt message or whistle warning. four. BIOS system bootloader: Soon after the method completes the POST self-test, the ROMBIOS very first searches for the really hard disk drive, CD-ROM, network server, and so on. to successfully start out the drive in accordance with the startup sequence saved inside the method CMOS settings, and reads within the operating program to boot Record, then hand more than technique manage to the boot record, along with the boot record completes the sequential get started with the program. 1. Tips on how to enter the laptop BIOS: failure phenomenon: a second-hand COMPAQ laptop, you need to enter the BIOS for some settings, but usually do not know the shortcut keys. Fault evaluation and processing: Most laptop computer systems enter the BIOS differently than desktop computers. Most laptop computer systems press [F1], [F2], [F10], or [CTRL+ALT+ESC] keys. Also, a lot of laptops can also set the motherboard BIOS through a dedicated system. two. Unable to begin right after clearing the CMOS: Failure phenomenon: The parameter settings of the really hard disk are modified inside the BIOS, restart just after saving, and throughout the method self-test, the speaker emits an alarm sound and fails to start. Turn off the laptop, short-circuit the jumper on the motherboard and clear the CMOS, then set the jumper towards the default state and turn around the personal computer. The power indicator will not light, the CPU fan doesn't turn, along with the laptop cannot commence. Failure evaluation and processing: It is actually estimated that after the switch of the pc and the socket is turned off, the pc power plug continues to be below the charged state as a result of the quality from the socket, resulting in unsuccessful removal of CMOS. Soon after unplugging the energy socket from the computer, plug it in once more, after which turn on the energy switch in the pc to clear the fault. three. Memory detection for a lengthy time at power-on: Failure phenomenon: After changing the motherboard as soon as, the memory have to be checked for any extended time each and every time the method is booted prior to entering the operating method. Fault evaluation and processing: Memory detection is a important course of action for computer system startup. It's estimated that the 'QUICKPOWERONSELFTEST' item just isn't set to 'ENABLE' within the BIOS, in order that the memory will self-check 3 instances. Set it to 'DISABLE' and then save and exit, so that you are able to speedily check the memory at startup. four. BIOS cannot be set: Failure phenomenon: Immediately after the laptop or computer is turned on, enter the BIOS setup plan. Except for the settings of 'User Password', 'Save Modification Exit' and 'Do Not Save Exit', the rest with the items can not be entered. Fault analysis and processing: It really is estimated that this phenomenon is caused by the destruction of CMOS. It is possible to attempt to discharge it. In the event the fault can't be solved immediately after CMOS discharge, you'll be able to also try to upgrade the BIOS. When the fault nonetheless exists, it might be an issue with all the CMOS memory, and you can replace it. 5. The computer is abnormal immediately after refreshing the BIOS: failure phenomenon: a computer can begin after refreshing the BIOS, but often it crashes just before it is finished, or it crashes when getting into the operating program. Fault analysis and processing: The result in in the difficulty ought to be attributable to flashing the BIOS. It truly is estimated that the BIOS system or BIOS version of the other motherboard is incorrect. Motherboard makers often launch upgraded and enhanced versions immediately after launching a motherboard with a chipset, to ensure that some new capabilities could be added. There isn't any key alter inside the function from the upgraded and improved version, so the hardware design and style modifications are tiny, as well as the BIOS system can also be quite similar. Consequently, even though the BIOS is flashed incorrectly, it could occasionally be began. Because the pc can still be began, it is possible to attempt to enter the DOS genuine mode to flash back the original BIOS program, as well as the difficulty need to be solved. six. USB failure immediately after upgrading the BIOS: Failure phenomenon: Restart the personal computer soon after upgrading the BIOS, the CPU, memory, and keyboard pass during the self-test, but crash when detecting the IDE interface. Failure evaluation and processing: Right after resetting and beginning, you can't enter the BIOS to set up. Following removing the battery to clear the parameters set inside the BIOS, restart, and enter the BIOS setting interface once more. Following inspection, you discover that the 'USBCONTROLLER' within the 'INTERGRATEDPERIPHERALS' item is Set it to 'DISABLED', and set it to 'ENABLES' almost everything operates fine. 7. Unable to turn on following automatic shutdown: failure phenomenon: a computer system suddenly shuts down for the duration of use, and can't be turned on following pressing the power with the host. The screen often shows black, but the energy supply towards the motherboard is regular. Failure evaluation and processing: It can be estimated that the memory is loose. Soon after opening the case, reinsert the memory. Following the power is turned on, the failure remains the identical, however the host will not emit any sound, which can eradicate the memory failure. Right after re-plugging the monitor and replacing a problematic CPU, the fault continues to be the identical, so I suspect that there is certainly a problem within the BIOS. Immediately after discharging the energy in the CMOS, restart the personal computer and every little thing is regular. This situation can be caused by voltage instability causing errors within the information in the motherboard BIOS. Recover the data right after the BIOS. 8. The temperature is too high to cause the laptop or computer to run slower: failure phenomenon: right after a laptop is employed for a couple of hours, the speed will automatically slow down. Failure analysis and remedy: initial suspect a virus, and also the newest version of Rising anti-virus computer software detected no virus. So I assume it really is the problem on the operating technique. The operating speed of your personal computer is often slowed down right after reinstalling the operating system for a time frame. Later, I was going to open the chassis to replace the hardware. It was discovered that the temperature inside the chassis was higher, so I suspected that the temperature inside the chassis was too higher, causing the BIOS The monitoring plan reduces the CPU frequency and causes the computer to run slower. When I checked in the BIOS, I discovered that the warning temperature of the CPU was set as well low. Soon after the CPU warning temperature is enhanced somewhat, the fault disappears. 9. Unable to read challenging disk information with incorrect BIOS settings: Failure phenomenon: Immediately after modifying the computer's BIOS settings as soon as, it is identified that the hard disk cannot be accessed. Fault evaluation and processing: There are many parameters inside the BIOS that could set the operating status in the challenging disk. If not set effectively, it can impact the perform from the challenging disk. The current IDE supports logical parameter sorts. Tough disks can use 'NOMAL, LBA, LARGE', and so on. If the information is installed in the general mode, along with the BIOS is changed to a further mode, a challenging disk read and write error will take place. The computer's BIOS now supports the 'IDEAUTODETECT' function, which can automatically detect the kind of hard disk. In the event the challenging disk cannot be accessed, the really hard disk alternative can be set to 'AUTO' in the BIOS. http://www.yahoo.com finds the tough disk and can access it usually. 10. BIOS settings result in 3D failure: failure phenomenon: a computer usually produces black screens and freezes when working with 3DMAXS application for 3D animation design and style and rendering. Fault analysis and processing: Initially thought it was the trigger of the operating system. Just after formatting and reinstalling the operating program, the fault remained the same. Soon after the replacement check, the components within the host have been all great. Later, it was discovered that the CPU internal cache item 'CPUINTERNALSCACHE' in the 'BIOSFEATURESSETUP' item Right after altering the item from 'ENABLE' to 'DISABLED', there's no black screen crash when applying #DMAX once more. 11. The computer fails to begin right after a energy failure: Failure phenomenon: Sudden energy failure throughout the use with the laptop. When the computer is restarted after a call, it can't enter the operating technique. Failure analysis and therapy: I believed that the operating technique was broken through the power failure, so I reinstalled the operating system. Overwrite the installation following starting with all the WINDOWS CD. Soon after the second startup, the program prompts 'Insufficient memory, please exit some running programs', along with the installation system is aborted. So soon after formatting the hard disk and reinstalling, this issue nonetheless occurs, and ultimately reset the BIOS right after resetting, troubleshooting. 12. The CMOS settings usually do not match the parameters on the memory module: Failure phenomenon: The original 64MB of memory is retained when the computer is upgraded, plus a 256MB of memory without parity is added. The total variety of memory on the screen when booting is 320MB, and after that it prompts a parity error. Then it crashed and could not enter the BIOS settings. Fault analysis and processing: It can be estimated that the memory is set for the parity state within the BIOS, and the memory module without the parity function is applied. Just after changing to a memory module with parity check function, the self-test passes and you can enter the BIOS settings smoothly. Following turning off the parity verify function, insert the original memory module in to the motherboard once more, you are able to also enter the BIOS settings, but it will crash just after exiting the BIOS. Carefully verify the a variety of setting things in the BIOS, and identified no setting errors. So I was going to reinstall the method. When I attempted to boot together with the floppy drive, I found that the indicator in the floppy drive was not on. It truly is estimated that the memory bar conflicted with all the BIOS settings. Soon after changing the memory study status (MEMORYREADWAITSTATE) along with the memory (MEMORYWRITEWAITSTATE) write wait state from '0W/S' to '1W/S', no crash occurs right after saving and exiting the BIOS. 13. Unable to modify the data within the BIOS: Failure phenomenon: The information inside the BIOS cannot be modified immediately after getting into the BIOS settings. Failure evaluation and therapy: There are lots of instances of this phenomenon, and the therapy solutions are distinctive in every case: 1) The BIOS chip is damaged. Within this case, the motherboard must be repaired; 2) CMOS memory complications, it is possible to discharge or upgrade the BIOS plan; three) The BIOS data around the motherboard is damaged by viruses, within this case, you are able to discharge the CMOS, after which restart immediately after the discharge Just set the BIOS; 4) 'User Password' and 'Super User Password' are set in the BIOS of the pc. The two users have unique permissions. When the user password is utilised to enter the CMOS, it cannot be modified. Only the super user password is used to log in. To modify the settings.