when you are building a computer do not forget to make sure there are no solder bridges on anything with solder on it. if the solder runs into other components is a solder bridge and will cause short. some companies do not care about their work and if you do not look at these things before hand you can waste a lot of time and money putting your best time and money into them just to have them fail. I have taken things apart that quit working and have found this to be true of many companies most are out of business now or started making other products.