There is something pluged in wrong in my Compaq Presario SR5130NX tower and i need a picture showing how to plug in all the drives to the motherbord

You probably still have a bad power supply.

just release the switch at the bottom side of your laptop. there's an instructions there.

You could do two things. First I would download malwarebytes, update it and run a quick scan. I would thendownload Microsoft Security Essentials and install it. It's free. If you have XP or higher, you could do a system restore to a date prior to you having problems.

Unplug all the Cables from Compaq Presario 5103 CL and leave the Keyboard, mouse and monitor cable pluged in.

Now make sure the power cable of the monitor should be pluged in and the power cable of the tower should be pluged in.

Now to check if the montor is fine just unplug the video cable only which will show no input signal on the screen. If it shows this signal the monitor is fine. Plug back in the video cable.

If the monitor is going to sleep mode it might be possible that the old computer ( Compaq Presario 5103 CL ) is in stand by mode. hit any key on the keyboard and it should come back .

If it is not in the stand by mode then do one thing. Check the same monitor with the new computer. If it is working. Perfect ..!

Do one thing now ..!

Unplug all the cables from your old system and then press the power button for 30 sec and let it go. Now plug the keyboard, mouse and the monitor try again.
If it works Perfect. If not ..!

Then you need to open the tower and check on the processor FAN is it running..? If its not running you will not get the display as the fan is responsible for the display on the screen. Otherwise...!

Check the Tower possibly the Tower is not getting the power.

Try these steps and let me know If it works

Probably "Torx" which require a special tool

I found a bios up date.
You need to choose which operating system your are using.
here:
http://h10025.www1.hp.com/ewfrf/wc/softwareCategory?lc=en&dlc=en&cc=us&lang=en&os=228&product=3436820&
It looks like they don't offer an update if your OS is XP but the newer OS's show a bios update.
let me know if this works

sounds like you have a driver or filter issue. this is not uncommon. give this a try to remove the Upperfilters and Lowerfilters values completely from the following registry key

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}

YOu can reset bios password with 2 method.
(1) open back cover of laptop then find motherbord .Pull cmos cell from motherbord for 15 minutes then again put it in it's position .then it not ask for password.
(2)You can clear password with jumper settings find jumper on motherbord named clear cmos it has 3 pin .1-2-3
Put jumper in 2-3 position then again put it in 1-2 position then check .
Let me know if you need more assistance.
Thanks.

Open cpu cabinet of computer.
Then pull cmos cell from motherbord for 10 minutes.
Refix RAM memory.
Reconnect both connection to harddisk,
Reattach ATX power connector.
Sometimes motherbord settings are messup so if you reset settings then it done.

Let me know if you need more assistanse.

Can you hear the hard drive spinning? I believe you contacted a virus which got into the Master Boot Record. Same thing happened to me two weeks ago. I had to reformat. In your case you need to (or have someone) remove the hard drive from the laptop. Slave it to another unit with a USB bridge and retrieve the data (if possible). Then use these three programs on it while it's still a slave: Dr. Web, Malware Bytes, and Superantispyware. Once you've found all the bugs you may have to restore some of the protected files, you can do this with a Windows OS Repair.