I have laptop hp compaq nx 5000, its DVD drive is not working when I connect external DVD drive it does not shown in my computer and show error message og hub power surge problem. Kindly guide me how to resolve it as I do'nt have much idea to how resolve this problem

hopefully this list of PDFs from a google search will help...
https://www.google.co.uk/#hl=en&output=search&sclient=psy-ab&q=HP+nx+5000+manual&oq=HP+nx+5000+manual&gs_l=hp.3..0i13j0i13i30j0i8i13i30l2.7111.14274.0.15424.17.17.0.0.0.0.236.2460.3j11j3.17.0.les%3Bcappsweb..0.0...1.1.4.psy-ab.yeE7qkFVQbQ&pbx=1&bav=on.2,or.r_gc.r_pw.r_cp.r_qf.&bvm=bv.42768644,d.d2k&fp=7086d31e6251426f&biw=1280&bih=683

touch pad driver is download is your laptop.
see site and download your laptop touchpad driver

http://driversdownloadsfree.com/get.php

download mirror ok

if screen is blank, that doesn't means that u've to replace ur screen.
Can u see BIOS screen when u start ur laptop ?
if yes then its ur operating system's problem. and if u cant see the BIOS screen, try to contact HP Assistance service.

Well, for starters, is your cd/dvd turned on in the bios.  Some but not all computer have a setting for this.  If your cd/dvd drive is removable, shut down the computer, remove the drive.  Reboot the computer and shut it down again.  Then reconnect the drive and start the computer back up.  This will make sure that if your drive is working, windows will redetect it.  You can check device manager to make sure it is not disabled.  If none of this works, you may have a bad drive.  If you really must reinstall windows, you can get an external cd/dvd drive pretty cheap on Ebay.  Just make sure you go into your BIOS setting and change the boot menu to external drive.  I hope this information helps.

The memory modules are located at the bottom of the laptop under one of the panels.
The memory modules may be OK and may only need reseating. Then boot up the laptop to see if it works, if it doesn't work, the memory may be faulty, take it to a computer shop to get it tested.

Dear, in all the new laptop's its common problem because what bootable cd u are using did not contain sata drivers and thats why it shows no harddrive found ok so search the sata drivers and make bootable cd by adding this sata drivers and than try to boot.

your DVD ROM will appear in MY computer or computer.please check out.

try and connect a monitor to the external monitor connection at the back and check whether the same thing happens. probably it wont and this will mean that the screen is having luminosity problems and might need to be changed.

Check this link for a CD-R/DVD Combo drive for a decent price:
http://www.priorityelectronics.com/hp/319422-001.htm

Here is a good link for laptop drives:
http://www.geeks.com/products_sc.asp?cat=414&sort=ASC

What program are you using for the dual setup? Place a shortcut in startup. usually an external monitor is used in place of the laptop LCD. The Monitor may need to be #1 and the laptop LCD#2 http://www.intel.com/support/graphics/intel852gm/sb/cs-009064.htm?iid=search& This site may help too. Good Luck, Tim