When system power on after checking the memory my system hang on the varifying DMI pool data........

Hello there and welcome to fixya
A. DMI or DesktopManagement Interface (pdf) is a layer of abstraction between system components and the software that manages them. The System Management BIOS (SMBIOS) is an extension of the Basic Input Output System (BIOS) that formulates and delivers this information to the operating system. The pool data is the information. In short, when the BIOS is "Verifying DMI pool data" it is verifying the table of data it sends to the operating system (Windows, etc.). If it isn't sucessful, it should return an error. Wait a reasonable period of time for it to finish. It may make take some time or it may be stuck. Possible fixes:
1. If you changed the hardware just before this problem occurred (e.g., installed a new hard disk drive), unchange it.
2. If you installed a new hard disk drive, set the motherboard CMOS Setup to Auto for the drive type. You may have to disconnect the drive first.
3. Enable "Reset Configuration Data" (may be "Force Update ESCD" in some CMOS Setuups) in the motherboard CMOS Setup PNP/PCI configuration. (Rebooting will automatically disabled it after it has done its thing.)

Try restarting in Safe Mode, press F8 at bootup and then either troubleshoot or do a system restore.

Possible main memory fault; swap memory modules if you have more than one installed. Otherwise, clear the CMOS contents in the Bios and re-configure. ( remove the coin battery and short circuit the battery socket contacts then re-install the battery )

well varifying DMI pool data is not a warning its a process where your system hangs. install new windows or repair the old one.

verifying DMI( Data Migration Information/or Dynamic Migration Information) pool data refers to hard disk function. check the hard drive to see if it functioning properly.

check all your power cables , especially the one going to your hard drive, also you data cable going to the hard drive in case you've nudged it loose while you were replacing the power supply

That could be a hardware failure of some sort, or because you added a new hardware device. The "DMI pool" code has nothing to do with Windows, but is part of Plug and Play. Windows has not even loaded yet. It is the System Board BIOS startup code checking the hardware configuration, and setting system board resources for Plug and Play to use. Go in to the system board BIOS (normally DEL key when first powering on) Look in the PnP or PCI Configuration section, for an entry "Reset Configuration Data. It will show Disabled. Change it to Enabled, and save the new configuration and reboot. BIOS will set it back to Disable after it clears the DMI data and rebuilds it. The first time through, it will take a long time, but after that it should not hang. Unless there is a hardware problem with one of the adapters on the system board or PCI bus.
I have seen CD-Rom drives cause this hang, if there is a CD in the drive. So make sure there are no CD's in the drives when you start up.

hi i have put together a pc but when i power it up it say soft menue has changed and then says verifying dmi pool data pls can anyone help thanks

The Desktop Management Interface (DMI) is a new
method of managing computers in an enterprise. The
main component of DMI is the Management Information
Format Database, or MIFD (the DMI Pool Data). This
database contains all the information about the
computing system and its components.
At times, some systems may experience hang
conditions after partitioning, formatting and initial
bootup of a hard drive. The message, "Verifying DMI
Pool Data" appears and the system hangs. This
condition may continue after the drive has been
removed.
! WARNING ! ALL SUGGESTIONS LISTED IN THIS
INFORMATION BULLETIN ARE BIOS RELATED. FOR
A PERMANENT SOLUTION, MAXTOR RECOMMENDS
THAT USERS CONSULT THEIR SYSTEM OR
MOTHERBOARD MANUFACTURER FOR BIOS
UPGRADES.
Suggestions to Resolve the Condition:
1.Apply power to the computer. 
2.Access the system BIOS. 
Set the drive type as None or Not Installed. 
Load BIOS Defaults 
Load SETUP Defaults 
3.Save the BIOS changes and reboot the PC to a
System Boot Diskette. 
4.Shut down the PC after the memory count is
displayed. 
5.Reconnect the power and interface cables to the
hard drive. 
6.Access the System BIOS. 
7.Auto-Detect the hard drive. Ensure that the LBA
Mode option is enabled. 
8.Save the BIOS changes and boot the PC with a
System Diskette. 
9.Partition and format the hard drive via the
operating system. 
10.Reboot the system. On bootup, the screen should
read: 
Verifying DMI Pool Data
Update Successful
The system should continue booting normally.
Other Possible Solutions:
1.Apply power to the computer. 
2.Access the System BIOS. 
3.Disable both the Internal and External CPU Cache.
These features are located in either the "BIOS
Features" or "Advanced Settings" options of the
BIOS Setup.
NOTE: Consult the System or Motherboard User's
Manual for exact location of the Internal and
External CPU Cache settings. 
4.Save the BIOS changes and reboot the PC to a
System Boot Diskette. On bootup, the screen
should read: 
Verifying DMI Pool Data
Update Successful
The system should continue booting normally.
5.After the system successfully boots, re-start the
PC and access the system BIOS. 
6.Enable the External CPU Cache. This feature is
located in the "BIOS Features" or "Advanced
Settings".
NOTE: Consult the System or Motherboard User's
Manual for exact location of the External CPU
Cache setting.
! WARNING ! User's MUST re-enable this feature
for optimal system performance. 
7.Save the BIOS changes and reboot the PC to a
System Boot Diskette. On bootup, the screen
should read: 
Verifying DMI Pool Data
Update Successful
The system should continue booting normally.
NOTE: If the aforementioned suggestions fail to
resolve the issue, contact the system or motherboard
manufacturer to:
Remove the "Clear CMOS" Jumper and reset the
system BIOS 
Obtain a Flash BIOS Upgrade

from pc help;
SYSTEM HANGS AT MESSAGE: "VERIFYING DMA POOL DATA":
You did not say what operating system you are running but I assume Windows 95 or 98. It is possible some Windows
system files are corrupted or perhaps the system doesn't like your ram (if you added or installed ram recently). There
is also a possibility that there is something wrong with your BIOS and you *may* have to update it, but I would avoid
doing that if at all possible.
A quick fix - if the problem is software related - is to:
1. boot to a Windows startup disk (one that matches your operating system). this step assumes that your PC is setup
to boot to the A: drive before the C: drive (via the BIOS SETUP program). If you don't have a Windows startup disk,
you will have to make one on another person's computer that has the same version of Windows. You make one via:
my_computer/control_panel/add_remove_programs/startup_disk
2. run "scandisk c:" to make sure that any file corruption is fixed before going to next step
3. do a "sys c:" from the "a:" prompt to transfer a good copy of Windows system files to c: drive
4. remove the boot floppy, reboot the system and see if all is well.
If that does not solve the problem you may have to reinstall Windows 95/98. Ouch!
I recently had someone bring me a computer that had this DMI error message problem and I tried the "sys c:" method
(with the startup disk) without success and had to entirely reinstall windows 95 (and almost all applications except for
some programs that did not need to be placed in any Program Files directory or other special location) to cure the
problem. However nasty a job that is, it did cure the problem.

the operating system files have got corrupted if you have the option on the screen when you first turn it on to go to recovery ,usualy F11 it will recover the software ,if not you will need to install the o/s again
good luck
Terry