Here is what the Media test failure check cable eiting PXE ROM means:
Iam sure when we were changing some settings with the BIOS you must have done something wrong.Just reemember if you changed some settings over there.
try change the boot-order in the BIOS
try to disable "network-boot" in the BIOS.
This issue is often caused by either an incorrect setting in BIOS
or a bad boot device, such as a bad hard disk drive. To resolve this issue,Isuggest you go through the steps in document CH000229
relating to a similar error message.
Now coming to System32\ntall.dll unknown hard error:
Restart your computer. The ntdll.dll error you're receiving could be due to a one-time, temporary issue and a simple reboot may resolve the problem completely.
If the ntdll.dll error only displays when you use a specific software program, uninstall the program, reboot your computer, and then install the latest version again from scratch.
Update drivers for any hardware in your computer
where updated drivers are available. Outdated drivers sometimes cause ntdll.dll errors.
Test your memory for damage
. If you're receiving ntdll.dll messages, one possible cause could be a bad memory module in your system. Testing your memory will either identify a problem or clear your RAM of any responsibility.
Perform a repair installation of Windows XP
. If individual software reinstallations fail to resolve the problem, a repair installation of Windows will replace the ntdll.dll file. Remember to install all Windows service packs and other patches after this installation.
Perform a clean installation of Windows XP
. A clean installation will completely remove Windows XP from your PC and install it again from scratch. I don't recommend this step unless you have stepped through all previous troubleshooting steps and you're comfortable that the ntdll.dll error is not caused by a single program (Step #2). NOTE:
a single program or plugin is causing the ntdll.dll error, reinstalling Windows and then reinstalling all of the same software may lead you right back to the same ntdll.dll error.
While extremely rare, if everything else has failed, including the clean installation from the last step, you could be dealing with a hardware issue with your hard drive. If so, replace the hard drive and then perform a new installation of Windows XP