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desone

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About desone

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  1. desone

    A decent notebook cooler

    I have several DEll laptops including some of the infamous Inspiron 5150's which had the overheating problems. The advice about cleaning the cooling fans is excellent advice. You can buy some excellent fan cooled bases to put under your laptop. Go for the aluminium ones, not the plastic. Never use your laptop on a soft surface, like a bed, without a cooling base. If you feel competent enough to open up your laptop, you can try a few little modifications. Most laptop heatsinks have a heat conductive pad about 2mm thick on critical hot areas. I removed this stuff and replaced it with pure copper squares and arctic silver paste. You can buy copper sheets for about $25 from hobby shops. I used a stanley knife to cut squares to the desired size. Make sure you don;t distort or bend the copper when cutting. I used a stanley knife with a new blade and made very deep score marks before breaking a section of the copper off the main plate. It is important to maintain, as near as possible the thickness of the origional heat conductive compound. This may require two layers of copper. I used arctic silver paste to hold the copper in place. I use my laptop as my main computer. It is running 24 hours per day 7 days a week with no problems. I havent switched on my desktop for about 18 months. Keeping in a dust and lint free environment, as much as possible, helps with maintenance.
  2. desone

    Wind tunneling and CPU cooling

    Getting the hot air from a heat sink, such as a video card, directly outside the case is a smart way to go. I had a SLI watercooled setup. I had two video cards with passive heatsinks. I used two exhaust fans, which fit into an expansion card slot to get as much heat generated by the video cards directly to the outside of the case. I only used watercooling on the cpu. My two radiators were both mounted inside the case, as I wanted portability. I used the fans to suck the air through the radiator to the outside of the case. My system worked very well. I had to mount fans beside the waterbloch to cool the cpu voltage regulators. I decided to go one better and made a chiller out of two peltiers and and thre copper cpu heatsinks. It knocked about 5c off the water temperature and 2c off the inside of the case. I used a 20amp 12v power supply to run the peltiers. If you are handy with a dremmel tool you can soon adapt a waterblock to suit later motherboards. e.g. I had a socket 478 waterblock and made up a perspex adaptor to suit a socket 775. The principle I used is - why use water cooling when fan and a heatsink does an equally good job. The advantage of using water on a cpu is that water can handle variable temperature changes very wall, as the cpu comes under load. My watercooled components were mainly secondhand off eBay. My main radiator was new as I was after a particular size to fi7 80mm fans. My water temp was typically around 30-35 degrees cent.
  3. This morning I downloaded an "Optional" update for my Dell Inspiron 8200 laptop. After installation the touchpad refused to work. I had to use a USB mouse to regain control of my machine. I thought - no great problem - I will uninstall it. There was nothing to uninstall. I then thought I would roll back the driver - no driver to roll back. I contacted Microsoft support via email. They actually got back to me in about 4-5 hours. Not bad service I thought. By that time, however, I had already solved the problem. Here is the fix, if anyone has the same problem. http://techrepublic.com.com/5208-7343-0.ht...189&start=0 Look for the oem**.inf file which was created on Dec 11. 2008 6.14.56am. I just put it in another folder so XP couldn't find it and deleted the device from the device manager as per the instructions. Microsoft has since withdrawn the update from their web site.
  4. desone

    Beginners water cooling system

    If you are thinking of watercooling and you are worried about the heat problem, look seriously at a salt water aquarium chiller. I wouldn't go for the cheap peltier type but the refrigerant ones which cost about $400 up. They often turn up secondhand on eBay at very reasonable prices. These type of chillers come inbuilt with a water pump, so you don't have to worry about a pump. You could mount the chiller outside your room in order to minimize the heat generated by the chiller. You may not even require a radiator, just a water block. The size of the chiller would depend on what you want to cool e.g. cpu, gpu and other components. There was one Gold Coast distributor, a while back, especially modifying these chillers especially for computers. I wouldn't be too concerned about water condensation inside the computer case. As long as there is good airflow inside the computer case, condensation wont have time to form, much in the same way as a frost-free fridge.
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