Question : Problem: ReBoot Loop

Hi, checked  the site for failed floppy drive seek and reboot loop and did find solution or I didn't look hard enough.  
Here's what I've got:  Dell Demension E310, Windows XP , hard drive, cdrw and "NO FLOPPY"
Power up "Failure seek, no floppy drive.  Select F1 and go forward.
Sometimes the system goes on to windows and sometimes it just begins a reboot loop.
During the reboot loop all front panel lights are flashing off and on with hd light going to amber.  

When the system does suceed in logging into windows it will run for a while and power off, sometimes prior to the power off windows does go into "shut down screen" saving settings, etc, sometimes it does not.
Activity "on or off" internet does not produce failure

Actions taken:
1) Reset bios and removed floppy from boot sequence
2) Restored windows from Dell Recovery console
3) Checked logs and failed state = failed to shut down Rousey (name of pc), not sure why the system tried to since I did not instruct it to do so.  
4) Now when I do succesfully get to the event log, it shuts down, ie., "windows is shutting down now"
so sometimes I get the message and sometimes I don't.  Finally, while using the event viewer I get the message "mmc failed to open".

Now What??
Thanks

Answer : Problem: ReBoot Loop

The "Power up "Failure seek, no floppy drive.  Select F1 and go forward." is happening because your CMOS battery has failed, or is failing and the CMOS reset.  You would need to go into BIOS and tell it you have NO floppy, and that problem will go away.

The reboot/cycle can be caused by a lot of things, often as orangutang says, a repair install will take care of the problem.  However, if the problem is caused by an intruder/spyware/malware/virus, a repair install may not remove the problem.  I would try the following:
1. Boot to safe mode, if the system boots to safe mode, and stays up in safe mode I would then
2. Boot to safe mode with Network and after getting on internet install an AV Program and Spyware program and do a safe mode scan for intruders.
3. If the computer continues to have problems when booting to safe mode, you probably are having hardware issues with the controller or communication side.  If hardware, make sure the system is clean and free of dirt and dust and reseat all the chips by grounding yourself and wiggling the memory chips and pc cards (video, modem, etc) and make sure they're seated.

This sounds like a hardware problem, what we need to know is.
1. Will the system boot in safe mode and stay up? (Not a heat issue)
2. Will the system boot to Windows after you've let it cool down, say for 1/2 hour even if it dies after running for a few minutes, or does it not matter how long it has been since the computer was on. (This is trying to see if it is a heat failure problem (computer cool=ok,  hot = not)
3. Try turning on the computer, and let it warm up by stopping it on one of the boot processes; after it has warmed up for about 10 minutes, try a quick reboot, and see if the computer will come up to windows then.  This is trying to determine if it is a heat related issue. (computer cool = bad, but when hot = OK)
Make sure the insides of the machine are clean, free of dust, especially around the memory.  The problem is either hardware (heat/intermittant failure), software (corrupted or an intruder interference)   We need more info, this will help you get started.