Question about Toshiba Satellite A15-S157 Notebook

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Heat Sink Hi guys, Well I tried the heat sink, Cleaned off the old and installed new heat sink...this didn't seem to fix the problem...any suggestions for the next thing to try fixing this shut down problem..? Is there any other reason why my notebook is just shutting down..? when I restart it after it shuts down, the time it shuts down is usually 1 to 3 minutes...Thanks ,,,Michael

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Sounds like the power circuit on the motherboard could be faulty. Look for any leaking capacitor on the board, may be fixable by replacing the component. It's easier but more expensive to replace the system board.

Posted on Jan 16, 2008


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I put a new power supply & heatsink with fan in my system & now I can't get it to power on. The heat sink was VERY hard to get on. I even put the old power supply back in & it won't power on....

If your CPU is sticked on the heat sink due to heat sink cement, could have damaged your CPU pins. Those CPUs like AMD and IBM Desktops we need to unassembled the same by tilting method. If your CPU pins are damaged, remove your CPU from heat sink by the help of a chisel type screw driver and clean both faces of heat sink and CPU. Do not scratch, use isopropyl alcohol to remove heat sink cement. Inspect any pins are dented or damaged. Align pins, if broken solder with help of a goldsmith. Reinsert the CPU in motherboard socket, apply a little portion heat sink cement in cpu face and re fix heat sink and recheck the motherboard.

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My old heat sink and fan have screw in attatchments and the new on has the plastic pop in and 1/4 turns. Help?

Your old heat sink and fan probably works just as as good or better than that stock Intel fan and heat sink. If your computer case does not allow access to the rear of the motherboard you are going to have to remove the motherboard to pull the back plate that was used to attach your old heat sink and fan. To install the Intel fan turn the pins until the screwdriver slot is perpendicular to the fan shroud (the tip of the arrow is furthest out), then push in any 2 opposite sides at the same time into the motherboard. You will here them click in. Repeat for the other 2 pins.

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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.

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1 Answer

I am trying to find out what heatsink i have in my aspire x1300

my suggestion is remove the heat sink on your desktop. bring the heat sink as a sample then buy new heat sink.

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1 Answer

Computer keeps shutting down on its own.

This is a difficult problem because I cannot determine the exact cause because of limited information.
This problem will need to be solved by trying one thing at a time.
Do not do all these together.
1. Reseat the RAM.
2. Remove the RAM and get it tested at your friendly computer store.
3. Reseat the hard disk
4. Run a virus scanning program on your computer/laptop
5. Check the fan to see if it spins freely, if not replace the fan
6. Loosen the dust from the fan and heat-sink assembly and remove/vacuum the dust.
7. Try removing the heat-sink, remove the old heat-sink compound and apply a new coating of heat-sink compound to the CPU and re-attach the heat-sink to the CPU.
8. Do a system repair with the Windows installation CD
9. If nothing works then re-install Windows, plus the laptop's device drivers and your programs.
You may need assistance from a computer savy friend to help you. Let me know how things work out.

Feb 04, 2010 | Computers & Internet

2 Answers

Pentium D problem

Hi oilian,
Be glad it did shut down. If it didn't, your new CPU could haveover heated. There are a few reasons for a CPU to over heat.
1.) There is no thermal grease or too little on the heat-sink assembly.
2.) The old thermal grease was not removed or the old thermal tape was not removed.
3.) The heat-sink assembly was not cleaned completely with alcohol before applying new thermal grease.
4.) The CPU fan is running too slowly.
5.) The heat-sink fins are possibly filled with dust build-up & the CPU fan can not cool the heat-sink assembly. Boot to the bios & go to Hardware Monitor. There you can check voltage, CPU fan speed, CPU temp & other bios monitored settings.

Good luck oilian!

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1 Answer

Replace heatsink fan on CPU.

The thermal paste should be cleaned off. Clean the CPU and heatsink fan with a dry cloth, which should remove the paste quite well. It is simply a viscous liquid and should not require scraping.

You should replace the thermal paste when installing the new fan. You can purchase it at your local computer supply store. Simply place a small dab of it on top of the CPU and then install the fan.

If you try to re-use the existing thermal paste, you will not get reliable heat transfer from the CPU to the fins.

Sep 11, 2008 | Computers & Internet

2 Answers

Gateway 7405 GX Fully shuts down at random intervals

It sounds like a thermal shut down when the processor over heats,one thing it might be is that the heat sink is not seated properly on the processor.When removing the heat sink make sure you have thermal paste to place between the processor and heat sink.That should give you a good starting point.

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1 Answer

How do you install the convergence part on a Mitsubishi WS55511 big screen tv? The part has prongs on the bottom but I don't know how to attach it.

you must de-solder the output IC first. Then I would suggest that you remove the heat sink by removing the philips screws holding it to the pc board. you will find white heat sink compound on the bottom of the heat sink. clean this off and remove the output IC. put some heat sink compound on the new IC and install in in the holes on the pc board. be careful removing the solder on the pc board. I like to use solder wick. Install the new IC and solder it up as the old one was. remember to check the convergence in both analog and digital, as you have to converge both for it to remember the settings. Hope this helps. TV repair guy :)

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4 Answers

No picture just sound

Had the same problem, took the back off and found some bad soilder joints on two of the main circut boards. Re-soildered and appears to be fixed.

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