It appears that your motherboard has failed. With no way to test your processor that is the most likely of the choices.
When purchasing a new mobo, keep the following specs in mind:
> You run an Intel socket LGA 1155, so that is what your present processor will mount to. Any other, it will not mount. Make sure the mobo has that socket.
> You are running PC3-12800 (DDR3-1600) memory according to your post, so if you want to add on that is what you will need. It doesn't hurt to check the mobo's specs and verify that is what it accepts since you will want to use your existing memory.
> Make sure you have several USB3 ports; some of these manufacturers are still supplying USB2 ports (which really irritates me).
> If you want to use integrated video on the mobo, make sure the processor specs include video integrated on the chip, and the board specifies integrated video is available if the chip has it; it may be that will be enough for your needs and save you the video card money. You can always add a card later if you want to. Just a thought.
> In your situation, I would check out Asrock motherboards; I have had good results with them and am running one now, in fact. Here is a listing at Newegg where I do all my purchasing. Also read the users' reviews on the board you may be interested in, they are extremely helpful.
That will get you started; please post back with any questions.
[EDIT]: Just a last minute thought.... I assume that you will want to use your existing hard drive with the OS on it; before you connect your HD, set your BIOS back to factory defaults; sometimes the BIOS settings are skewed from testing at the factory so you want to avoid any problems by resetting. If you don't know how to do this check your motherboard manual. Now power up and check that the system recognizes your POST screen. You should get a BIOS/CMOS message to supply a system disk. Now you know that everything is working properly and the system recognizes the BIOS. Then power down and connect your HD and power up. Hopefully you will boot into Windows. However, you have a new mobo so it may hang. If it does this, post back for more help, I won't go into that to save thread length. You may have to re-register with Microsoft since you have a new motherboard, but that shouldn't be a problem, just have your key number ready.
After you boot into Windows, remember that you must install your motherboard, chipset, USB, Video and Audio drivers from the CD that came with the new mobo. And..... Do Not Lose That Disk. I can't begin to count the number of clients who lost their mobo drivers long ago, and now we have a project trying to find the proper ones a few years down the road.
Edited by ranchhand3, 12 August 2014 - 08:44 AM.