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Removed processor from compaq presario sr1901wm replaced now monitor says no image what is wrong?

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  • mannu rawat Mar 13, 2011

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Hello Ron - The two most likely possibilities are that you either did not seat the CPU properly in it's socket (misaligned or bent pin) or that you did not fasten the heat sink properly, or remember to plug the heat sink power connection into the motherboard power connector.

With the heat produced by modern CPU's - without the proper cooling they would melt down almost instantly that's why both Intel and AMD have built in overheating protection which keeps them from even starting if not cooled correctly. When replacing the CPU it is always good practice to apply some new thermal paste after cleaning off the old.

I suggest you try starting the machine with the cover off and see if the heat sink fan is turning. If not that's at least part of your problem. If it is turning I would remove the CPU (careful of static!) and examine the bottom carefully to make sure nothing looks damaged. If it looks normal I would try reseating the CPU slowly and carefully.

In your question you did not say why you removed your CPU. Where you upgrading it to a new one? If so are you sure it is compatible with your motherboard?

Here is a link to HP's info page about your motherboard, including upgrades. Click Here.

It's also a good idea to clear the motherboards CMOS when removing and installing a CPU. The same page has a clear description on doing that.

Please follow the steps as I've presented them below:

1 - examine the info at the link I presented. 2 - make sure the fan is working - If so then - 3 - remove the CPU, examine and if it looks OK replace carefully (It should take hardly any pressure for a CPU to fit into it's socket.) Thermal paste would be nice but there's probably enough on the CPU (unless you've wiped it off) then you would need to get more paste before proceeding.

If that list doesn't help then it's time for a call to HP/Compaq tech support.

Good Luck,

Posted on Mar 13, 2011


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FIRST DISCONNECT THE PC FROM AC!!!! Try the next- disconnect ALL PERYPHERIALS- mouse, keyboard, monitor, pull out the RAM board(s) and switch on the PC. If still the same, pull out the PCI boards- video card, modem, audio, TV, whatever you have and try again. If it turns on, that means that one of the disconnected perypherials is damaged, put in one by one to detect which one is burned. If still no, change the thermo paste between the CPU and the cooler with a new one.

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If the hard drive is is not damage maybe you can save all important files on it.

Please do the step by step troubleshooting of your laptop.
REmove the following:

1. Memory
2. hard drive
3. processor:
4. Battery

try this;
1. Fix some other connection inside the laptop
2. Insert AC plug then start the system.
3. shutdown the system
4. Insert the processor
5. swittch on the laptop.
If beeping; continue
step 3;
6 insert the memory.
7. start the system
8. If display, connect the harddrive.

in step 5: if not beeping:

Either board or processor is dead.

IN step 8.
9. start the system.
10. if the hard drive is detected, and cannot continue booting
i recommend you to reinstall the windows.

Please notify me if problems arises. i will give you further instruction, melnavz.

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