Having problems with your HP Pavilion zt1170 Notebook ?

My HP Pavilion zt1170 fails to boot 90% of the time. Once power was turned on, I could hear the fan run for one second and stopped. No video, yet the LED was on. It seems like it froze. Occasionally, it booted up successfully and it would work normally. However, it would freeze up if there's no activity for a few minutes. Any idea???


Answers :

I also have a ZT 1170 and it began to do the same thing. It was a bad solder joint in the RAM slot connector in the bottom of the laptop. It would intermittently cause the laptop to hang on bootup, or to randomly lockup.
\015\012This laptop has two slots for RAM. One is underneath the laptop behind a small access door, and the other is under the keyboard and requires removal of the keyboard to access it.
\015\012To find out if your laptop problem is due to the same issue, open the bottom access panel and remove the bottom RAM memory card. Try booting it up. It should still be able to run, although more slowly due to having less RAM. If it starts up, you are closer to isolating the problem.
\015\012
\015\012In my case, I initially thought I had a defective RAM card, so I purchased another 256Mbyte card for the laptop (mine came with two 256Mb cards), but the new card had the same problem. Then I discovered that pressing down on the RAM card would momentarily fix the problem, which clued me in on it being a bad connection. It seems that heat under the laptop causes some of the solder connections between the memory slot connector and the main PC board to develop hairline cracks. I was able to find the cracked joint and resolder it, but you almost need a microscope to do it. Depending on how much installed memory you need, you could simply leave the one slot empty, and buy a larger RAM card to stick into the other slot (under the keyboard). This laptop can accept a maximum of 512Mbyte card in each slot, for a total of 1024Mbytes.
Once you get it to boot, go into start, run, type in msconfig and under startup, uncheck anything you don't NEED to run your computer, Players, weather programs etc. reboot. Next, run a registry cleaner. It will allow your computer to see what's there, instead of looking for what used to be there but didn't clear all references when it was removed.
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