Want safe way to piggy back a power supply for XPS 210

You need a power supply tester provided by DELL.

Most laptop power supplies are made for a particular brand, so the best way to test is in another Dell laptop. The other way is using a voltimeter, first testing the power cord alone, and then testing the tiny connector.

It sounds like a fan problem, it could be one on the case, the motherboard or in the powersupply. fans are generally inexpensive, but if it is the power supply it will be a couple more bucks to fix. There could even just be a buildup of dust on them. Compressed air can usually clean them out. HDD can also cause noises in some cases but hopefully thats not your problem.

This can be a cooling problem. You should heck your fan is working properly and the air is circulating correctly in the case.
This can also happen if you upgraded some components. Maybe the power of you power supply can be not sufficient for system use.

You can piggy back up to 3 of the fans to the one connector from your power supply.

It is possible that you picked up a faulty power supply, slim, but possible. Chances are pretty good that you have one of your components drawing too much current on your power supply. The largest power drain comes from your processor and the graphics accelerator cards, however it could be a faulted motherboard or hard drive. You can replace your power supply with a larger capacity unit from a known good manufacturer. If you increase the wattage capability and look with the side off to see if any component is generating a lot more heat than usual. A larger capacity power supply should be able to handle the unusual current draw.

It probably is. It has to keep the temperature down. Clean it out and you probably won't hear it.

Hi, The noise from any computer is due to the fan. It is really the only thing that makes noise on a computer - unless you havce a bad drive. If you can hear a drive outside of the case, then it's about to fail. You can buy a quieter fan for your laptop. That will take a bit of investigation on your part, as far as getting the dimensions and wattage of the fan from your manufacturer's web site or the instruction manual that came with your computer. You would do best to go to a reliable and competent computer shop and have a quieter fan installed, rather than doing it yourself if possible. This mod is very simple, and can make your computer run better, provided you get a better fan that can cool your machine better.

Try using Compressed Air in a can by the vents. I would not recommend taking apart the laptop.

You can connect the splitter to any of the 4 connectors that power IDEs(Hard Disk, DVD ROM, CDROM etc.,). The splitter's sole purpose is to split one 12v supply into two 12V power supplies so that we can connect two devices instead of one. You can disconnect the power from DVD connect the splitter to it and then use one of the two 12v supplies from the splitter to connect to the DVD drive and the other to the HDD fan.