No Video Signal After Changing CPU Fan

Status
This thread has been Locked and is not open to further replies. Please start a New Thread if you're having a similar issue. View our Welcome Guide to learn how to use this site.

chibahawk

Thread Starter
Joined
Sep 29, 2004
Messages
148
Ok so my PC has worked fine for a long time now but I wanted to put a more quiet fan onto my processor. Can't remember the make and model of either but my CPU is nothing too powerful. Maybe 1.6GHz AMD Socket A.

Anyway I put some thermal grease on and put the fan in no problem... however upon turning the PC on - I get no response from my monitor. The video card fan is spinning leading me to believe it's working... Any simple suggestions?
 
Joined
Nov 16, 2001
Messages
4,022
chibahawk said:
The video card fan is spinning leading me to believe it's working... Any simple suggestions?
Well not much to go on but if the vid card has a fan it's likely it's powered meaning gets it's power from the PSU. The fan could still spin from the BUS power but you may not have plugged the card in so that it has enough power to actually provide a picture.
 

chibahawk

Thread Starter
Joined
Sep 29, 2004
Messages
148
griffinspc said:
Well not much to go on but if the vid card has a fan it's likely it's powered meaning gets it's power from the PSU. The fan could still spin from the BUS power but you may not have plugged the card in so that it has enough power to actually provide a picture.
Guess so. However I didn't really go near the vid card so I doubt I could've knocked it loose or anything. I'm gonna try to pull it out and put it back in regardless but I think there might be something else.
 
Joined
May 3, 2006
Messages
22,445
Go double check hsf is fastened properly, if it isn't the pc will not boot.
 

chibahawk

Thread Starter
Joined
Sep 29, 2004
Messages
148
Rich-M said:
Go double check hsf is fastened properly, if it isn't the pc will not boot.
yea im thinking its definitely tight - i know that the clips definitely clicked in-----

quick question


there was a grey square on the bottom of the hsf which i figured was thermal grease... i added even more thermal grease on to this but maybe the first grey square was something that should not have been added on to
 
Joined
Nov 16, 2001
Messages
4,022
OK, so if you didn't remove anything else but the hsf and if Rich's solution doesn't work then go a little further with your description. The vid card fan spins but do you hear the normal boot process, drive spinning, etc., just no picture?
 
Joined
Nov 16, 2001
Messages
4,022
Whoops, typing at the same time, yes you don't want a pad and thermal grease and you only want about a BB size amount of grease at that. Also did you carefully remove all traces of the previous grease?
 

crjdriver

Moderator
Joined
Jan 2, 2001
Messages
41,780
With the socket A cpus, it is reasonably easy to crack the cpu die when you install the hsf. Extra easy if you did not pull the board.

Go back and reseat ALL connections. It is easy to knock something loose while you are inside the case.

If you still get no post, I would pull the board and R&R the hsf. Give the cpu die a close inspection.
 

chibahawk

Thread Starter
Joined
Sep 29, 2004
Messages
148
griffinspc said:
Whoops, typing at the same time, yes you don't want a pad and thermal grease and you only want about a BB size amount of grease at that. Also did you carefully remove all traces of the previous grease?
oooh that could be a problem.. how would i remove the grease that was ON the CPU? can you just scratch that off or how do you go about that? That could def. be the problem
 

crjdriver

Moderator
Joined
Jan 2, 2001
Messages
41,780
You just clean it with 99% alcohol.

Did you pull the board to do this or did you attempt doing it in the case?
 

chibahawk

Thread Starter
Joined
Sep 29, 2004
Messages
148
crjdriver said:
You just clean it with 99% alcohol.

Did you pull the board to do this or did you attempt doing it in the case?
did it in this case.. did it careful though..

you would figure that having 2 layers of fresh thermal grease and one uncleaned layer of old grease would mean theres no dissipation right?
 

chibahawk

Thread Starter
Joined
Sep 29, 2004
Messages
148
okay so i did the following...

took out the new fan and rubbed down the CPU and fan with 70% alcohol pads.. then I applied a little Arctic Cool grease to the chip and re did the new fan... nothing

So from here I switched out the Video card, nothing.. then I tried a new monitor, nothing..

Then I put back the old fan with some new grease and nothing again.


Really stumped now. I should add that my HDD is booting up and everything does seem normal but the video signal
 
Joined
May 3, 2006
Messages
22,445
Well the only thing left is power supply which could have gone coincidentally, or the mobo.
 
Status
This thread has been Locked and is not open to further replies. Please start a New Thread if you're having a similar issue. View our Welcome Guide to learn how to use this site.

Users Who Are Viewing This Thread (Users: 0, Guests: 1)

As Seen On
As Seen On...

Welcome to Tech Support Guy!

Are you looking for the solution to your computer problem? Join our site today to ask your question. This site is completely free -- paid for by advertisers and donations.

If you're not already familiar with forums, watch our Welcome Guide to get started.

Join over 807,865 other people just like you!

Latest posts

Top