Computer is frozen and says booting is stopped at checkpoint Ithr

Need more info. What happens when you try to boot? Fans spin? LED's blink? Anything on the monitor? When you push the on/off button does it start and in a few seconds shut down?

Start system, pressing F2 to get to the BIOS. Go to "event log” section, clear the last event, save the settings, boot again

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if you are referring to the round battery on the motherboard, it controls the cmos settings remove this and your PC will not boot. yet clearing your cmos may help. look for the lil jumpers usually located near that battery and change them to reset, power on let boot then power down. then place them in the original slot.

What can cause this error?

Well, this is the problem since quite a variety of problems can trigger the error.

1: the bios can be malfunctioning (a bios reset or flash can give a solution)
2: the cpu can be malfunctioning (this requires a new cpu)
3: the cpu socket can be failing (this requires a new mb)
4: the problem can be with bad usb sockets
5: even a bad uplink to a usb hub can cause this error to appear.
Did you change your monitor lately? I would chase down the USB things first...that and the monitor seem to trip the trigger...
Hope this get you started- I think you were right on target with the flash of the BIOS-try it again using the BIOS flash downloaded from the dell site...and to run the chipset again...it just might
Good luck my friend, hope this helps, please leave rating, thank you kindly

the problem description is
Ithr
Smm mode is initializing the thermal probes.

problably the system is running at high temperature because of improper fan speed, so try to clear the nvram if its not working flash the bios if still the issue persists, replace the heatsink assembly and the motherbord.

You need to reset your bios settings. Open your case and remove the cmos battery for 10 minutes. Caution: unplug all ac plugs before you open your case. put the battery back in and turn it on you should see an error message saying: you need to set system time and date. If you see this then you have successfully reset your bios settings and the defaults should load up. follow the instructions to change your time and date settings and save. reboot and hopefully you can boot up. I hope this works.

A Blinking Amber or Yellow power button means that the power supply is receiving power from the source but is unable to properly distribute it to the components. This can be caused by a defective power supply or a defective motherboard. Just to make sure that nothing else is causing the problem, remove any PCI cards like modem, video card, sound card, etc... Remove the memory modules and disconnect cables to CD/DVD drives. Look at the USB ports to see if any are damaged.



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Thank You.

Sounds like you tried everything except reseating any other hardware that may or may not be placed in another socket such as PCI, AGP, etc... Like a Modem, Network adapter, Sound/Graphics card, Wireless card, etc... This is probably a wasted post as if you knew to check each stick of memory seperatly then you've probably already reseated all socketed hardware. Though, you could remove all non essential hardware such as I mentioned above and try installing Windows again?
Good luck and keep us posted.

Hi,
One of the greatest factor in intermittent shutdowns is because of heat issues. try to check the fans if they are all spinning. if all fan's are ok then you only need to replace the motherboard. here's a manual that might come in handy http://support.dell.com/support/edocs/systems/dim5100/en/sm/index.htm

Hope this helps.

thanks