When the computer turns on, “Verifying DMI Pool Data” appears at the bottom of the screen for a few seconds or even less. In this case, the computer does something, noting progress, and then proceeds to launch the operating system. But sometimes there is an unpleasant situation - the computer at this step “freezes” and does not react to any actions. This can happen again after a reboot, which indicates a serious problem. It must somehow be solved, otherwise the computer becomes a completely useless piece of iron.
Troubleshooting the Verifying DMI Pool Data error.
What is Verifying DMI Pool Data
An error at the Verifying DMI Pool Data stage means that a problem has occurred with any computer hardware. The fact is that at the start it carries out various tests and checks of devices, making up the so-called DMI table. In the future, based on this table, the operating system will determine which equipment is available, which ports it uses, and which ones remain free, which helps to further allocate resources. “Verifying DMI” means checking the DMI table, and it is this process that occurs when such an inscription appears on the screen. If it does not complete, then some device does not work correctly or does not work at all - then the computer hangs.
Causes of error
The computer “freezes” at the stage of Verifying DMI Pool Data, when one of the devices is malfunctioning or malfunctioning. It does not respond to requests or responds incorrectly, and such a test can last forever or stop in a few minutes with an error message. The reasons for this can be quite a lot. Sometimes the process of Verifying DMI Pool Data "hangs" at boot, although before that everything worked fine. This is the case if a peripheral device was connected and it is not recognized. Another common cause is cleaning your computer from dust, when you can accidentally hit a board and break its contact. You can accidentally slide any connector on the motherboard or, for example, on the hard drive, and disconnect it completely or partially. Another common reason when starting a computer fails is to upgrade, that is, installing additional devices or replacing them. These devices can be identified incorrectly or not supported specifically by this motherboard, or even be faulty. Naturally, the launch in this case will also freeze at the stage of Verifying DMI Pool Data.
The fault may be the BIOS, more precisely - its incorrect settings. Then a flashing can help it, although it is often enough just to reset the default settings. Sometimes it is necessary to replace the battery that feeds the BIOS, especially if it has been working for several years - over time it becomes unable to maintain the desired voltage and the settings can be lost in different ways. Sometimes the culprit is the power supply. It should be suspected first of all if the computer turns itself on after it is turned off or it starts up after several attempts. The power supply may not provide the necessary voltages, causing some devices to suffer power, and therefore they do not work properly.
TIP. The reason is quite banal - when you made the usual installation of Windows, but with a damaged distribution. So, failures on the winchester can appear, and it will simply cease to be recognized. By the way, the appearance of "broken" sectors on the hard drive can also give such a result. And they can appear, including from a strong blow to a working computer.How to fix hangup for Verifying DMI Pool Data
Methods for correcting a problem depend on the reasons that caused it, and there are many of them. However, if they are not resolved, the computer at the stage of Verifying DMI Pool Data will continue to hang. Before getting started, it’s helpful to answer the following questions:
- Were there any manipulations in the computer case - cleaning, installing new devices or replacing old ones? Check all connectors on internal devices — unplug them and reconnect. New devices to remove and see if the error has disappeared, try to connect them to other similar connectors or slots. You can turn off all unnecessary and connect in turn, checking the download each time (make the connection with the power off!).
- Were new peripherals connected, for example, a USB hard drive or another? You need to disable them and try to boot. If the problem persists, try connecting the device to a different port.
- Has the new system been installed from a new distribution? You need to format the hard drive and install the system from a trusted distribution, from another disk or flash drive.
- Did the system clock reset itself spontaneously? Most likely, the voltage of the battery powering down has dropped; the BIOS is reset and settings are reset. Every few years this battery needs to be changed.
- Does the computer never turn on at the first attempt, and instead of shutting down, it starts rebooting? Definitely need to change or repair the power supply. You can turn off unnecessary, especially energy-intensive devices - a DVD-drive, for example, and check the download again. If the problem disappears, you need to take care of the power supply anyway, otherwise the problems may become much more serious.
The reasons and ways of solving the problem are quite obvious and simple. If all of them do not fit, you can try resetting the BIOS settings, it often helps, and the DMI table is then built correctly.
Reset BIOS settings
If the Verifying DMI Pool Data error appeared for no apparent reason, as mentioned above, that is, you didn’t connect anything and didn’t open the computer case, then you can try the simplest method - reset the BIOS settings. What to do in this case? Enter the BIOS when you start the computer using the Delete or F2 key (which key is right for you - it depends on the model of the motherboard or laptop). On some models, another key is used - you need to read the instructions or clarify on the Internet. In the BIOS in a prominent place, usually where the hot keys for storing and quitting are usually indicated, there is the Load BIOS Setup Defaults item - load the default settings. Use this and save the settings, usually the F10 key. Now you can exit and restart the computer. Quite often, the problem is solved in this way. At the same time in the BIOS, look in the list of disks, whether the hard drive is determined - its name must be written on one of the SATA ports. If there is no hard drive in the list of disks, perhaps the problem is in it. This, too, often happens because of errors on the hard drive, and some models are simply unreliable and do not work for a long time.
Remove or install old computer component
Sometimes removing one of the computer components solves the problem. For example, it may be useful to turn off non-essential devices — all unnecessary peripherals such as a printer, scanner, webcam, etc. You can turn off a DVD drive, although its problems rarely cause an error. But the hard drive must be disabled necessarily and see if the DMI check passes without it. Of course, then a message will appear that there is no boot disk, but it will be after and not important by itself. If the hard drive is not recognized, you can try to test it on another computer or replace it with a known good in order to clarify the situation. If the error remains without the hard drive, you can go further - remove the video card and connect the monitor to the built-in one, if available.
If several rails of RAM are installed, you can remove them all and check them one at a time in different slots. You can also remove all additional cards from the PCI slots and install them one by one, checking the load each time. This way, you can identify which device does not pass the Verifying DMI Pool Data check. Sometimes the computer freezes after the upgrade - replacing some device with another, more powerful and modern one. However, the motherboard may not support it, and then only the return of the old device to its place will help to correct the error. For example, some levels of RAM can work only on AMD boards, and others on Intel, and even then not on all.
CMOS clear
Sometimes a hardware CMOS clearing method can be useful - this is also a reset of the BIOS settings, but not by software, as described above, but by hardware. So the settings are guaranteed to be reset to factory values. However, remember that after this you will need to re-configure some settings, otherwise the system will not work with optimal performance and may not even boot. However, this problem can be solved.
Next to a large round and flat battery that feeds the chip, where the BIOS stores its settings, and is called CMOS, there is a small two- or three-pin connector. If it has 2 contacts, then there are no jumpers on it, and you just need to close the contacts for a few seconds, for example, with a screwdriver.
If the connector is three-pin, then he has a jumper on one pair of contacts - it must also be moved to another pair of contacts for a few seconds to activate the free one, and then return the jumper to its place. As a result, the BIOS will return to the original, factory settings, and the DMI table will be re-created. Perhaps this time all the devices in it will be listed correctly.
Did you encounter a problem with the computer freezing immediately after turning it on? What device was it connected with and how did you decide the question? Share your experiences in the comments, it is sure to be useful to someone!