Question about HP Compaq Evo n800c Notebook
The unit developed this problem after it was shut down in Stand-by mode by closing the lid. Even with the lid closed, it kept repeatedly starting-up and shutting down. This continued even after the AC adapter was removed. Finally the laptop battery had to be removed to stop this repeated momentary starting-up and shutting-down of the unit, as holding down the “Power button” (to force complete shut-down) was ineffective. The current behavior of the unit is summarized below.
The problem is definitly with the heating.
if the screen turns blue then system reboots its your PROCESSOR which is over heating may be your CPU exust dont work and now the system gets stuck.
Posted on Jan 16, 2008
Your problem is not a capacitor problem, that is so remote of a possibility it is it's a one in a million!
I Have read all the info here and find Darklord has already posed the correct solution (with explaination) 3 days ago,
Have you since verified hard drive and I'm just missing that fact?
Posted on Jan 10, 2008
Buy a newer one
Posted on Jan 10, 2008
in my opinion it sounds like when you shut down in standby mode what the laptop does is it writes what ever info you have into ram so when you try to boot up again it tries to resume itself by reading from the RAM and then that's where your problem starts b/c it can't read the ram it shutsdown again.
I would do the following: when you first boot...just tap the f8 key to see if you can start windows into safe mode then just do some maintenance ie. chkdsk of the harddrive to make sure everything is ok then shutdown the computer properly and reboot the cross your finger.
If that fails then see if you can grab some sodimm ram from another laptop and swap it with yours to see if it boots up properly. to change the ram there's a compartment at the bottom of the laptop with a single screw in it. Just remove it and pull the ram out. Unless you have an onboard RAM then you are pretty much dead in the water. You should validate that its a ram problem by download ultimate boot cd with tools to test your ram and harddrive.
Posted on Jan 07, 2008
It simply Really, Your power button is shorthing out. Just poen it up and see if it broken or just slipped out of place.
If that doesnt solve the problem then th short is on the main board, you can fix it by soldering it or if you cant see it you might need to scrape some of the plastic coating of the board.
And the if thats ineffective then check your memory, if your memory is damaged it can cause similar problems.
Also you hard drive windows instillation can also be corrupted but thats very unlikely cause its still shutting down in the bios.
IF ALL ABOVE FAILS YOU NEED TO CHANGE YOUR MAIN BOARD
Posted on Jan 04, 2008
Hi it sounds like it could be one of couple problems either the laptop has over heated by the vents becoming blocked by dust or fluff as this builds up on laptops anyway as the vents are so small.
And if you are sure the battery charges ok then that will be ok the other problem could be with damaged on off button could be something jammed in it.
Can you hear if the fan is working or not and has it ever benn knocked about.
The other problem is the expensive one and that is if the hardrive has seized or this problem can occur by getting a virus.
But the first thing i would say it was without having it in front of me is the switch because no laptop should switch on when just plugged in as it does this then that is likely to be the problem.
If you can manage to source the part where you live and are able to remove and replace new one without damaging it further as they are difficult to work on but i think this should solve your problem.
If it was a problem with fan then it wouldnt switch of for 10 to 20 minutes so we can rule that out but try the switch first as its the cheapset option let me know if i can help you further
Posted on Jan 04, 2008
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Posted on Jan 02, 2017
right click "my computer", left click properties, select "Device Manager" Expand anything to do with "Network Adapters" and make sure there are no problems / exclamation marks / unknown devices.
If there are, look for your wireless driver on..
depending on your model. if this doesn't work go to www.hp.co.uk and download the driver then install it.
If you can't detect any wireless networks, make sure your wireless card is activated - I believe this involves holding down FN (bottom left of keyboard) while then pressing F2 key at top. after this try try to search for wirless access points points.
Posted on Mar 18, 2009
It depends, do you have wireless capabilities on you modem or router, if you do yoy have a choice of wireless adapters. Either usb or pcmcia. You'll want one that is easy to hook up.
Posted on Mar 30, 2009
you need to configure your Internet Protocol (IP) that synchronous the network. if you using WIFI you may need encryption code from your network provider.. beware on installing driver, it comes crashing in your machine.
Posted on Apr 09, 2009
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