Having problems with your HP Pavilion zd8000 Notebook ?

HP Pavilion ZX8000 in constant reboot cycle

\015 Problem \342\200\223 System will not boot up. When you turn it on it will constantly reboot itself. Fans come on, hard drive light comes on, speakers make a pop sound and then it reboots. Each cycle only takes about 5 seconds. Never sends a signal to the monitor. No chance to enter the bios. Will not boot from XP or Vista CD/DVD.\015\012System details:\015\012- HP Pavilion ZD8000 Laptop\015\012- Windows XP Media Center with and without SP3\015\012More details on the problem and my attempts at fixing it:\015\012My son was using the system in his room. He complained that it would not boot. I checked it out and after forcing a shutdown by pressing the power button for a few seconds, and then restarting it booted up. I then proceeded to make sure the system was up to date on the XP updates. It needed SP3. I did that and when it rebooted it entered the reboot cycle again. This time I had to kill the reboot several times to get it to finally boot. The problem got worse and worse over the next few days. I thought it might be a battery problem and bought a replacement. That did not fix it. I then put it away for about a month. Then last week I got it back out and it booted up on the first try. I then decided to remove SP3 thinking that might be part of the problem. After removing SP3 the system had to reboot. It then entered the reboot cycle again. Numerous tries over the next week did not yield a single successful boot of the system.\015\012The only other useful information I can provide about my troubleshooting is that when it tries to boot it will never send a signal to the monitor. I am never given the chance to enter the bios. If the boot up got far enough along to send a signal to the monitor it would boot up every time.\015\012I looked at similar problems posted here and have not found a solution that works for me. It looks like it could be a memory or HD problem. Any suggestion on how to check these? I\342\200\231m going to try to check the memory tonight, but I\342\200\231m not sure if I have more than one stick in it. I\342\200\231d have to buy a stick if I only have a 1GB stick in it. I\342\200\231m hoping it\342\200\231s (2) 512MB sticks. Same thing with the HD I do not have another drive to try. I hope some of you have some things to try to eliminate some things without me having to buy things that I may not need.\015\012Thanks in advance!\015

Answers :

If you start tapping F8 after you turn the machine on, will it give you a boot preference? If so, boot to safe mode, then take the computer back in time.
I think i have the same problem. it doesnt even stay on long enough to\015\012show the bios screen. i took out the wifi card inside the computer and\015\012my computer booted right up. not sure if you have the same problem but\015\012its worth a try
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