[quote name='torifile']You really only need to worry about stability testing if you overclock. Basically, you run your CPU at 100% for hours and monitor heat and math errors using a program like Prime 95. Given that you didn't do a good job getting all the thermal
paste off the heat sink, you might get some insulation problems from too much paste on the CPU. It probably won't be a problem if you don't overclock (which causes a lot of extra heat) but might be if you do.
In other words, don't overclock. Unless you want to reapply the fan. Which means you'll probably have to take the computer apart again. And you really don't need to overclock for gaming right now. Games are not constrained by the CPU after you get up to the speeds you're clocking.[/QUOTE]
I disagree. I think you should test for stability even when running stock. A stock machine can be just as unstable as an overclocked one (bad memory for example).
Anyway that discussion is for later. The pressing matter is not to get discouraged because it doesn't boot up on the first try. It took me 2 weeks and a lot of hair pulling to get my first rig up and running.
One mistake that, I myself made is I switched the polarity of the cable that connects the power button on the case to the motherboard. Make sure positive is positive and negative is negative.
I would also suggest trying to turn on the motherboard by pressing the button on it, rather than the button on the case.
There are also
ways to test if your power supply is alive or dead. Again you can always borrow for 30 days another PSU from a local store. If you have a computer at home that you know works, switch PSU's with that. You don't have to connect the video card, you can POST with just CPU (with heatsink!) and memory, 24 pin power cable and cpu power cable connected, nothing else. You can do it outside of the case with the board balanced on some plastic cups. If it lights up, or more likely, starts beeping then you're in business!
Read the motherboard manual twice over and make sure everything is connected. Think up a list of troubleshooting ideas and try each one. If you run out, go for a walk or watch a movie, then come back when you have a new list. But don't get discouraged, the first time is always the hardest time. Try posting on the motherboard maker's forums as well. The people that lurk around there are far more experienced than what you will probably find here. They will come up with solutions or troubleshooting ideas that may be helpful. This was my experience with my first EVGA board, the mods and posters at the EVGA forums were extremely helpful and and knowledgeable. They had to be, in other threads they were showing 5 ghz systems running on a bench in their apartment with a bucket of liquid nitro on it posting insane LinX gigaflop numbers. As you could imagine, their help got my rig running and soon overclocking in no time.
Good luck! Remember what one man can do another can do as well.