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View Full Version : Putting a fan in my monitor ????


dalek2.0
06-23-04, 08:11 AM
Has anybody ever done this? I have a Gateway EV910. I put a sensor on the top of the case, on the outside, and the temp is about 105F, 41C. That is pretty warm. No telling what it is inside though. I did take it apart and blow out all the yukey stuff. Wasn't to bad though.

I have a 120MM 120Volt fan running next to the monitor right now and it is running much cooler, about 86F, 30C. It is quiet but I would rather put it in the case and have it come on with the monitor, or some other fan. Maybe force some cool air in.

I have worked on TVs and know what to not mess with. I have no problem with that part. Just wondering if anyone has done this or not.

Ideas??? Suggestions???

Thanks

:D :D :D :D :D

teezer
06-23-04, 08:53 AM
it's been done, but not recommended ~~~ having a couple of cats and seeing what cat hair can do to pcs, i thought my monitor had to be loaded with hair ~~~ opened it up (after 4 years) and no cat hair! ~~~ adding a fan as an intake or exhaust to a monitor will increase alot of crap inside that otherwise would not get in ~~~ passive cooling works in monitors as evidenced by how long they last

LiGhTBoY
06-23-04, 11:19 AM
I agree with teezer. Actually the tubes of the monitors (don't know how they are called) are actually designed to run at high temperatures.

dalek2.0
06-23-04, 12:06 PM
Cold won't hurt them though. I just don't want that horizontal output to go and take the flyback with it. It usually does. That is what usually goes out too. That has the most power dissapation, heat.

I want to do something, just not sure what yet. I was going to put in bigger heatsinks, not enough room. My old 17" had plenty of room but not this one.

Oh, if anybody cares, it is actually made by LG Electronics.

Any more ideas??

:D :D :D :D

Oklahoma Wolf
06-23-04, 01:09 PM
A fan won't hurt anything unless it's an AC model that interferes with the display. Thought about putting one in my folks' old 15" monitor that runs hot as heck, but it's holding up pretty well for its age so I'm not going to bother.

Most monitors are pretty well designed for passive cooling though - never seen one where the HOT failed due to overheating alone anyway (also I find it the other way around - bad or shorted flyback blows the HOT). You should see the size of the heatsinks in my 19" Dell/Sony ;)

dalek2.0
06-23-04, 01:35 PM
Right now there is a 120mm ac fan running. Doesn't seem to bother the pic at all. It may just be far enough away not to matter. It is also WELL shielded on the inside. May mount fan outside of the shield too.

I thought of putting a 80mm DC fan in there pulling some cool air in.

When I worked on TVs the HOT would short and cause the flyback to burn out. We found this out by torturing the test sets with a fuse, that was not stock, to blow as soon as the HOT would burn out. That way we could see which went first. Sometimes it is hard to tell which goes first because one will cause the other to be damaged at least. Most transistors short out at first. If there is enough current, they burn out further to a open circuit. Also lets the smoke out, so no more worky. Whew they stink.

Reminds me of the older Sansui amps. You short out the speaker wire and it burns out the outputs. That then goes back and burns out the driver. That burns out the other transisters that amplify and drive those. It doesn't matter which burns out first, they all go. They are DC coupled. They also sound REAL good. Just don't touch those wires together. Oh, used to cost about $300.00 to repair them. Well made but caution must be excercised at all times. Same with the monitor, except it bites.

I'll post if/when I do something. Trying to get my ISP to get me set up for pics and such. I'll have to borrow a camera though.

Later

:D :D :D :D

JCLW
06-26-04, 06:21 PM
I have a ten year old 20" Sony Trinitron, and the highest temp inside of the monitor case is about 12C above ambient (35C right now, room temp is 23C). The heatsink at the back of the tube is currently 46C - that seems to be the hotest part I can find with my thermocouple.

Free image hosting: http://imageshack.us/

teezer
06-26-04, 07:44 PM
Right now there is a 120mm ac fan running. Doesn't seem to bother the pic at all. It may just be far enough away not to matter. It is also WELL shielded on the inside. May mount fan outside of the shield too.

I thought of putting a 80mm DC fan in there pulling some cool air in:D :D :D :D

better do filters on the intake then ~~~ monitors are not meant to deal with forced incoming air ~~~ 6 ibm trinitron p-series and nothing newer than 1998. and still blows me away at the color these can display on certain images ~~~ and they still keep working ~~~ no need to improve the manufacturer's design, fans draw stuff, not needed

JCLW
06-26-04, 11:43 PM
What kind of shielding do you guys have in your monitors? I've had smaller ones open before that hardly had any. Mine has more then I've ever seen before:
http://img27.imageshack.us/img27/2595/monitor1.jpg

Oklahoma Wolf
06-27-04, 01:40 AM
Mine has about that much sheilding too.

dalek2.0 you just reminded me I have a Sansui amp I still haven't gotten around to fixing... picked it up for $10 Canadian only to find the output transistors totally fried ;)

What I've been finding is that in most cheap monitors, the flybacks in them die fast and often... just not built to last. Rumour has it that it's a high failure rate even for my own Dell p991 - hope it never goes ;)

dalek2.0
06-27-04, 03:36 AM
JCLW, mine is shielded just like that. I know they are disigned to run without fans but CPU are designed to run with stock heatsinks too. We still put these big things on them wether they need them or not. True???

I don't have cats or dogs in my room and dust itself is not a big problem. The only time the dog comes in here is when I vaccum and she hates the vaccum cleaner, usually under the bed, on it if she can get her fat butt up there. :attn:

I plan to put the fan, whichever that may be, on the outside of the metal shield. That should take care of magnetic fields and such. It may not help much but I do want it to last as long as I can. I'm disabled so if it goes, it may take me a few months to buy another. Me no puter in the mean time. <wipes tears>

Oklahoma Wolf, good luck with that Sansui amp. There are something to fix. CHECK EVERYTHING in it. They do sound great though. Among the best in my opinion. WATCH THOSE WIRES!!!

JCLW, I don't think mine is as expensive as yours. I hope mine will last that long. I must admit, I would like to have a 21" though. :D

Keep ideas coming. I'm listening.

:D:D:D

Oklahoma Wolf
06-27-04, 11:59 AM
Oklahoma Wolf, good luck with that Sansui amp. There are something to fix. CHECK EVERYTHING in it. They do sound great though. Among the best in my opinion. WATCH THOSE WIRES!!!

Thanks... I may leave it alone though for the time being, I have no real use for it at the moment. Aside from the output transistors, there are indeed a few other things needing replacing on it - the last owner wasn't nice to it at all. Don't want to spend money though fixing an amp I won't use ;)

Hopefully you'll have clearance above the metal shield under the case for that fan. My Dell has just enough room for perhaps a 25mm thick model.

dalek2.0
06-27-04, 12:17 PM
The monitor is sort of rounded on the top, so maybe I can fit it somewhere. I haven't decided wether to blow cool air in or suck hot air out. Still pondering on that one. May depend on where I can put the fan too.

Love this thing. Much better than the 15" or 17" I had before.

Later

:D :D :D :D