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Cooling fan froze up from layer of dust on top of heat sink. Need to buy new fan. cannot determine size. 80mm too big

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  • pontelemon
    pontelemon May 26, 2010

    70mm standard

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This is easy, if its a PC desktop cooling fan what you can do is take the unit/just the cpu down to any FRY's eletronics or computer store and have that fan replaced, these are standard also most are universal

You can also take out the fan you going to need to do that anyhow because its being replaced and take that fan down to the computer store. A measuring tape would also determine the size really quick.

Thanks and please do be considerate while passing threw fixya to rate and leave feedback for each expert that helps you today.

Posted on May 26, 2010

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My dv6 amd processor HP laptop freezes and goes off after working for just 30mins (it over heats)


Hello,
If your system is over-heating, and you are willing to open it up(or have a qualified technician do it for you), the following solutions will work: 1. Open up your unit, access the CPU cooling fans and use a blower to get rid of any dust that may have accumulated on the fan and filter(s). Unclogging the cooling fan will increase the rate of cooling. 2. Unscrew and unmount the heat sink from the processor. Clean the contact surface area carefully with isopropyl alcohol(Electronics cleaning Fluid, similar to lens cleaner) and re-apply a new layer of thermal paste. I always recommend Acrylic Silver 5( AC-5) for it's high thermal conductance. 3. Re-assemble the heat sink assembly and fan, and fix them tightly to ensure a firm, tight contact grip with the CPU. Take care not to break the CPU's die in the process.It can cost you an new microprocessor and/ or chipset.
Power up your machine.If it still has symptoms of over-heating, repeat the procedure again.
I hope my solution will solve your problem.

Feb 11, 2011 | Computers & Internet

1 Answer

I have a Toshiba Satellite A215 and it keeps shutting down and getting hot. I don't think the internal fan is working. Can this be fixed and is it expensive?


Replacing the fan on the CPU or the GPU, Graphics card, is actually very simple and the fan will run about $20 to $25 depending on what type of fan you get and where. Aside from a new fan you will need a small tube of heat sink compound. The fan just clips on to the CPU. Make sure you get a fan that is designed for your CPU type or it will not fit properly. For instance, if you have a P-3 CPU you can't fit it with a P-2 Chip or P-4 chip, they won't mount correctly and subsequently they won't work. When you go to Best Buy or the computer shop your to buy your part tell them what type of CPU you have and that you want the cooling fan and the heat Sink Compound to mount it with. They will be able to direct you to the proper fan Type. Also, while you have it opened up take the opportunity to use canned Air to blow the dust out of the machine. If you are doing what is called Over Clocking it is important that you know you may have burned the CPU out as this causes the CPU to heat up more than it would if you just had it installed for the proper speed. The old fan will be difficult to remove because the old heat sink compound will have formed a bond between the fan heat sink and the CPU itself. If you have to do any prying to remove the old fan make sure you do so carefully and make sure you clean the old heat sink compound off the CPU before you try mounting the new fan. When you apply the new Heat sink compound you want to place the compound in the center of the CPU and let the heat sink spread the compound out in a thin layer. This compound needs to be spread evenly so it forms a good bond between the Heat sink and the CPU itself to properly transfer the heat from the CPU to the heat sink so the fan can properly cool the CPU.

Nov 21, 2010 | Computers & Internet

1 Answer

I have had my dell for about 6yrs, I need to replace both cooling fans and don`t know what to order!


Can't point you towards a specific model of fan or fans without knowing your specific Dell model.. BUT luckily there are standard sizes for cooling fans - quite a few sizes - but since we're talking about a 6 yr old Dell, well that narrows it down a little bit. Here's what you should do first: take a plain old ruler that measures in millimeters/centimeters and take a measurement of one of the sides on each existing fan (don't measure corner-to-corner). Your ruler will be easiest to read in centimeters but most fans are sized in millimeters until they start to hit 120mm and above. Most cooling fans are the same but there are two main jobs they've got to perform: cooling the case, or tower... and cooling the CPU, or processor. Case fans are straightforward and typically measure either 80mm or 120mm, and as I'm sure you're aware, are responsible for exhausting warm air. Let me guess -- is there a dusty green shroud that covers the processor and its cooling fan? Maybe not -- but most of the time these guys were present in 2004-era Dells (as well as today) - and the case fan would sit at the very back and pull air through. (Is the case fan attached using rubber cone fasteners? Yeah if thats the deal then those are toast, unless you're a surgeon for your day job). The rubber plugs are for noise isolation (and cost cutting) but not to worry -- your new case fan will be the strong silent type. Dell probably has a smaller Foxconn or JMC fan sitting on top of a heat sink, which is contacting the CPU (Pentium 4?). That size will probably be 50mm but my recommendation would be to determine what socket type you're using -- and with this information, you can just purchase a new modern CPU cooler (heat sink and integrated fan, maybe copper heat spreaders, yada yada). ---If you're comfortable enough to switch out fans then you can handle a Pentium cooler switcheroo.--- (An instruction manual would be supplied, btw). But you'd just pop the bracket or clips securing the heat sink to the CPU, pull it up and outta there, wipe off the exposed CPU surface with a dry microfiber -- or use wadding polish like Eagle Nevr-Dull and THEN use the microfiber, apply PEA-SIZED drop of thermal paste to surface of processor (paste comes with the cooler), clip on said cooler, and open beer. Here are some links to go look at... (there are literally trillions of online merchants selling compustuff) -- newegg.com is always a good one of course due to great cust svc and practically next-day "ground" shipping; for in-person purchasing, you can't beat Micro Center (microcenter.com), but they may not have a store nearby. Check these guys out - I've used them for Dell-specific parts before and I like how you can search for components based on socket type, processor model, etc... http://www.directron.com/cpu---coolers-cpu-coolers.html This page will list a bunch of socket types from which to choose -- and if you're using a Pentium 4 on a 2004 or 2005 Dimension, for example, you'd probably want to click the Socket 478. If you're unsure, go to support.dell.com and plug in your service tag and pull your orig specs.
(Complete alternative: Dell Outlet Store... refurbished Core2Duo or Core2Quad with 4GB dual-channel memory, or hey I'll build you a 10-year future proof system - you pick the case design - for less $$ and will make Dell's cookie cutter systems look like.. well, cookie cutter systems.) Bestoluck!

Jul 21, 2010 | Dell (6F858) Cooling Fan

1 Answer

Power


If the fan is spinning quite fast then the overheating problem is most likely dust clogging the fan and heat-sink assembly. Blasting air into the fan and heat-sink can only make it worst as you are forcing the dust further into the heat-sink fins.
Remove the panels covering the vent and fan/heat-sink, loosen the dust and vacuum to remove this dust off the fan and heat-sink. Check the fan to see if it spins freely, if not replace the fan.
After re-assembling and boot up, if you still have heating problems, addition cooling can be employed by purchasing a laptop fan assisted cooling pad. Place the laptop on top of this pad and the fans on the pad will direct additional cooling air to the laptop's vents.

Mar 08, 2010 | Gateway ML6732 Notebook

2 Answers

Is my cpu getting to hot my cpu fan runs in high speed a lot. do i need a bigger fan or my cpu is going bad.


Neither.

Turn the computer off.
If it is a HP laptop, remove the battery.
Disconnect the AC power.

Buy a can of compressed air, and give your computer a "blow-job",
to blow all the dust away from the heat-sink on top of the CPU,
and also, if it is a desktop, from inside the power-supply.

A layer of dust is a layer of insulation, preventing the heat-sink on top of the CPU from "radiating" the heat away from the CPU. So, your motherboard is detecting that your CPU is "too hot", and automatically speeds-up the cooling fan, to try to move the heat.

Nov 17, 2009 | Office Equipment & Supplies

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My cpu overheats


clean the cpu cooler slots and replace the thermal compound on the cpu ....make sure you clean off the old thermal compound .....only a thin layer of new thermal C will do all most see through ... hope this helps my friend

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1 Answer

Case Cooling fan runs at high speed


A few possible solutions.

You said that you got some canned air to blew it out... what I normally like to do is simply use a vacuum and **** up as much dust as possible (besides who wants dust in your face?). Once that is done, I would advise that you take off the fan from the CPU cooler itself and get in there with either the canned air or vacuum... simply because with the fan still attached, there is possibly still a layer to caked dust under the fan and on top of the heat sink.

If it is any of the other case fans, I would either get in there and vacuum them out really good or simply replace them. My computer use to sound like a jet engine after 2 years but when I replaced my fans (with cool blue LED ones) it was significantly (can't stress enough) quieter. Most fans are of course using ball bearings, so if you can imagine the bearings getting a good layer of dust in them as well...

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Your cpu cooling fan may need to be replaced.

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