Cleaned CPU Fan, now monitor won't work, Solved/Closed

Question

My PC has been shutting down randomly the last few days telling me that it shut down for "excessive environmental damage" to ensure my pc didn't fry. I backed everything up on my PC on an external hard drive to make sure if it did fry I wouldn't lose anything.

Then I figured the problem might be the fans cause I don't ever clean the insides and it's probably very dusty (doesn't get great air flow out of the pc case). I took off the CPU fan and cleaned it really well.

When I put it back together however, the monitor said no signal. One thing I have noticed, is that it seems as though the CPU is glued to the fan, which makes re-attaching the CPU to the white socket on the motherboard very tricky. I can only guess when I think it's in and tighten everything up around it. 
Problem is still the monitor, on the proviso that I've put the CPU back into the socket correctly, the monitor won't get a signal. Also, the PC restarts itself every 20-30 seconds too. Power cord seems to work cause the pc turns on etc. 

Any suggestions for a fix at home?
please help!

bokentoe · Accepted Answer

Thanks for that.

I tried the RAM approach, taking it all out, cleaning it, putting 1 in another slot, everything you can think of with the RAM I've tried and no luck.

With the CPU though I do have a question, how do you take it off? I unhooked the fan, and it looks like the CPU came off with the fan however, I've tried separating the two, but they're stuck to each other pretty good. There's no way I can take the two of them apart. Is there a trick that i'm missing in separating them? Getting the thermal compound and adding more I can do, but not if they're not already separated. 

Suppose the other point too is, if the power unit itself is fried, does the pc still start? I've had problems with the monitors in the past pc's and it was the power unit that had broken. I just don't want to replace it if it isn't that. 
The PC doesn't stay on you see, after 20 seconds it turns off, then automatically starts again by itself and does the whole thing all over again.

jack4rall · Answer

Hello,

Try this 1.

1) If you have placed the CPU FAN without removing the old thermal compound 

and applying a new one on the  processor then remove the old thermal 

compound from the processor and  make sure that your CPU FAN is also clean 

without any thermal compound.

Now  freshly apply some  thermal compound in the middle of processor and 

fix the CPU FAN properly.

2) Regarding the display issue, remove the RAM from the slot, clean it and place

it back properly or try another slot. 

3) If the problem still exist then if you are having two RAMs then remove it, 

place only one RAM and check if you are able to start your laptop without any 

issue. If the problem still exists then try the above procedure with the other RAM. 

Check your RAM also. Even bad RAM will result such problems.

Good Luck.

bokentoe · Answer

yeah, that's where I've gone wrong with putting it back together again. Because the fan is connected to the CPU, I can't lock the CPU back into the socket. I have bent some of the pins, but I fixed that problem. 

I think i'll give it to a friend who has built PC's for a living in the past. He'll know how to rebuild that part of the PC without causing further damage (I hope). It'll cost a lot less of money and hassle doing it that way I think.

thanks for the help Jack! certainly learned something new from you! Will let you know whether that works or not. If not, maybe just buy a new CPU.

Increasing the speed of the PC other than buying a new chip, I guess would be the graphics card eh?

prakash · Answer

Thank you so much.. I fixed my lap by replacing the rams.. now my lap works great..

theyzzz · Answer

ive found a simple solution , when you plugged the hdmi cable from the pc to clean it , make sure you plug it in the correct port that you plugged it in before , there might be more than 1 hdmi port . I did this and it worked for me

Cleaned CPU Fan, now monitor won't work,

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