Question about Dell (N1240) Heatsink With Fan

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Must heatsink have epoxy before clamping onto mount

Cleaning out the computer; opened the fan cover and the heat sink clamps fell out. Tried to reconnect and broke mounting bracket. Have ordered bracket but do I still need to epoxy heat sink before clamping?

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YES...
You will need to clean the top of the CPU and the bottom of the HSF where it contacts the CPU.
There are different thoughts on the best way to apply heat sink compound (thermal paste)
I just put a dab about the size of a grain of rice and the top of the CPU, and spread it VERY thinly. You can use a piece of card (credit card type), I actually put some cling film on my finger and use that.
Goooooooogle "Fitting CPU cooler" for detailed info and youtube videos

Posted on Jul 21, 2010

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DO NOT use anything on the heat sink but heat sink compound!!!!!!!

Posted on Jul 21, 2010

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Heatsink


INSIDE A COMPUTER OR THE HEAT SINK FOR YOUR COMPAQ COMPUTER?

The "CPU" or central processing unit, otherwise known simply as "the processor," is the primary "brain" of the computer. Processors are very finely engineered components that are not repairable. But replacing a failed processor is an option for the owner of any model Compaq Presario desktop computer. Just check with HP/Compaq for the correct and speed of processor for your motherboard before purchasing a replacement.

Turn off the computer and disconnect all cables. WARNING: Before you start troubleshooting remember that you are dealing with electricity that can KILL. http://www.kitchentablecomputers.com/static.php - rules Only work inside the computer case when the power has been switched off and disconnected. Never open the power source. Some of the below steps recommend removing physical parts within the computer. While in the computer it is highly recommend that you be aware of ESD and its potential hazards Remove the cover. Lay the computer down flat. If there is a plastic hood covering an exhaust fan, remove it by pressing in on the indicated release tabs. Examine the processor assembly. The processor is a square chip that is covered by a metal heat sink with fins. A fan will often be mounted on top of the heat sink; unplug its connection to the motherboard. Two clips usually secure the heat sink assembly to the top of the processor. Gently press down and slightly away on the flat end of a clip to release it. Avoid using a screwdriver to release a clip; a slip could scratch the motherboard. Release the clips and gently remove the assembly. The heat sink should separate, leaving the processor behind in the chip holder. Clean the bottom of the heat sink. Use a paper towel and a dab of solvent cleaner to remove the old thermal paste. Set the clean heat sink aside. Lift up the lever to unlock the old processor and remove it from the pin mount. Insert the new processor chip. Align the pins on the processor to the "cut off corner" or dot on the pin mount. The processor should drop into the pin holes easily. If the processor won't drop in easily, check the pin alignment. Once the processor is inserted correctly, pull down the lever to lock in the chip. Apply thermal paste to the bottom of the heat sink. Apply enough paste to cover the area of the small gray rectangle on top of the processor. Apply the paste with a spreader made from a piece of flexible plastic. Spread the paste evenly to a thickness of two sheets of paper. Check the heat sink mounting alignment and lower the heat sink onto the top of the processor. Reinstall the mounting clips. Reattach the heat sink fan to the motherboard if necessary. Plug in the computer and monitor and boot. If the machine won't boot or it emits warning "beeps," unplug the power and monitor, and troubleshoot your work until the computer boots successfully. Shut down again and replace the exhaust fan hood. Close up the computer and reboot. Hope this helps.

http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&DEPA=0&Order=BESTMATCH&Description=thermal+paste

Jan 19, 2013 | HP Compaq Presario SR5610F Desktop PC

2 Answers

Toshiba Satellite L500D is shutting down by itself OVERHEATING Clean the fan with compress Air ....> NO GO Need help Please or Any other Suggestion


Disassemble the laptop and remove the heatsink.
Remove all the dried up heatsink goo that's on the heatsink and processor.
Squeeze a small amount of QuickSilver heatsink compound onto the middle of the processor top.
Place the heatsink on the processor and move it in a couple small circles before locking the processor heatsink back in place.
Clean the air vents and cooling fins well while the unit is open.
This should fix any overheating issues you are having (assuming the fan is OK)
If the fan isn't running, replace it.

Jun 24, 2011 | Computers & Internet

2 Answers

My p4 system getting hot


see do one thing check the cpu fan whether it is working properly and is not producing any noise if it is then probably you need to replace your cpu fan with a new one also makke sure that your power supply fan and chasis fan is working as excess heat gets generated in the system they remove it
to change the cpu fan 1.see it will depend on what kind of cpu socket you have pin or pinless for pin-open the plastic clamp on the fan for pinless -unscrew the heatsink
2.remove the heatsink and replace it it will be much better if you replace the full heat sink with a new one .also don't forget to put thermal grease compound for effivient heat transfer in between the cpu and the heat sink contact generally these days heat sinks come with pre-applied thermal componds but still it is recomended to apply it firmly over the cpu before installing the heat sink on it
3.if you wish to install the old heatsink by just replacing the top fan then replace the fan and rub the bottom of the heat sink with a sand paper to make it even and free from dust and oxide apply thermal compond and install it on the processor .plug bak the cpu fan header cable . start your system it will stop overheating..

Dec 05, 2010 | Intel Computers & Internet

3 Answers

Optiplex GX280 - loud fan at start up and amber power light - does not boot and no light at the back


Apply pressure on the heat sink fan right before you press the power button and continue applying pressure. Watch your screen if you see it boot this means its a problem with your processor clamp that applies pressure to the processor. Try to remove the top part of the clamp. Shouldn't be too hard with some needle nose pliers. Then just replace the heat sink and fan with out that clamp.  

May 27, 2010 | Dell OptiPlex GX280 PC Desktop

1 Answer

There were no instructions to install my undermount sink. What can I do?


Most under mount sinks are installed before the counter tops go in, they are cut to fit and glued in with 2 part epoxys and secured with screws and clamps. Replacing one in an existing counter top is not an easy job. If you have a granite top, forget it. If it is wood and formica, ok, you can pull the splash off and remove the top, but it is a lot of work. You would be better off with a new top, or a new sink, rim type. Now if you are building a new house and this is new construction, then you can do it no problem. And depending on what kind of top it is, it needs to be screwed and glued. The guy here that did granite for us, would drill out little holes, about 1/4 inch dia, and 1/2 deep for these little machine inserts to go into. Epoxy them in, then clamp the sink down or up to the top with machine screws, about 10/24, 1/2 inch long. Through a clamp, and epoxy the top on, sometimes he used clear silicone. depended on the top. If it was wood, you would just screw into the wood with 1/2 inch pan heads. Hope this helps.

May 15, 2010 | Franke 34" Undermount Double Bowl...

3 Answers

Whats wrong with my xbox?


Hi,
The x-clamp or repair kits, are quite efficient And effective.
But the actual Torque/Tightness of the Bolts Are very Important.
Usually when a 360 Overheats, with the original X-Clamps fitted. The motherboard Warps. The method is to :- repair the cpu/gpu heatsinks, apply a small amount of thermal Compound, And gently pinch-Tight the bolts. Then Run the xbox without the Fan Connected for a few Minutes to heat-up the Motherboard. then clamp the bolts a little tighter. these can be awkward, but with trial and error are usually repairable.
Also to be noted, are the older style heatsinks ( without Copper heat-Pipe ) are not as efficient as the newer or revised version.

Mike @ compurepair.

Nov 06, 2009 | Microsoft Xbox 360 Console

1 Answer

Heat sink


the heatsink needs to be clamped down to the cpu. if there is a clamp missing i would not use the pc until it is replaced.

Jul 14, 2009 | Dell Dimension 4600C PC Desktop

2 Answers

Intel DG965RY CPU Overheating


Check the clamp of the cooling fan. If the clamp is not engaged, heat sink didn't take the heat away from the micro processor causing CPU over heating.

Jul 03, 2009 | Intel DG965RY Motherboard

9 Answers

Alert chipset heat sink not detected system halted error message


This is a relatively common problem in the Dimension 4600c. The small, fan-less heatsink for the Northbridge chip (a memory/video-to-cpu communications chip) is held down by a spring, which is anchored by two small wire loops soldered to the motherboard at locations marked "HS2". The spring completes an electrical circuit between the two wire loops. The spring puts a substantial force on the minscule bit of solder holding the loops to the motherboard, and was a poor design.

If a loop breaks off, the circuit is broken, which tells the BIOS that the heatsink fell off. To fix this, you need to 1) secure the heatsink to the chip, and 2) reconnect the circuit between the two "HS2" locations on the motherboard. I have sucessfully used this solution. This solution will not necessarly stand up to a lot of abuse if the Dimension's enclosure is frequently opened and closed to replace other components such as RAM and hard disks.

0) unplug the computer.

1a) Recover the heatsink, spring, and loose wire loop. Discard the spring. Get:
- a fresh tube of thermal paste from Radio Shack or other electronics supply store,
- some epoxy,
- a round toothpick,
- about six inches of insulated 14 to 20 gauge solid copper wire,
- electrical solder, flux, and a soldering iron,
- and a box of cotton swabs.

1b) Using pure alcohol and lots of cotton swabs, clean *all* of the existing thermal paste off of the Northbridge chip and the bottom of the heatsink. When both are dry, apply a dab of paste to the center of the Northbridge chip. Use a round toothpick like a kitchen roller to spread the paste evenly across the small raised center square of the chip.

1c) Apply small daps of mixed epoxy just outside of the four corners of the raised center of the Northbridge chip. Place the heatsink onto the Northbridge chip, centering and squaring it as best you can. Press firmly to make good contact with the thermal paste. Allow epoxy to dry.

2a) Firmly seat one or both detached wire loops into their mounting holes at the "HS2" locations. While pressing down on the loop, apply a small dab of epoxy to one end of the loop to secure it to the motherboard. Allow epoxy to dry.

2b) Strip the ends of the copper wire, and bend the wire so that it can reach around (rather than over) the heatsink to the two wire loops. Solder the ends of the wire to each loop. Knowing how to solder is an exercise left to the reader. "Use head main ting": don't drip solder onto the motherboard.

You can now plug in the computer and restart. The BIOS and/or OS may have saved the error state and return a different message about the heatsink issue. You may need to reboot a couple of times to allow the BIOS to notice that the "HS2" circuit is (hopefully) now complete. When you've sucessfully booted the machine, shut it down and gently close the Dimension's enclosure.

May 21, 2008 | Dell Dimension 4600C PC Desktop

1 Answer

Replacement Fan And Heat Sink For 500 GR


Remove the heat sink and fan, take it to any computer shop and they will give you compatible replacements

May 17, 2008 | Gateway 500GR PC Desktop

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