Won't freaking work GA-P35-DS3L

Do you have a case speaker hooked up to the front panel header's SPKR connect? It might help with some diagnostic info...

No, I've got an Antec Solo case. Doesn't come with a case speaker. Nothing in the front USB ports or firewire port either.

Thanks for your reply
Tom

Get one - if nothing else, try a local computer place (not a best buy, ar another 'big box' place, but a place that sells supplies and does service) - they might just give you one - at worst, it can't be over two or three dollars. Like I say, when nothing, or almost nothing is working, it's your only diagnostic info:

Thank you for the idea. It was a good one. But...., I had the parts already to cobble one together. It beeps once when I press the power on button. After that, even when the PC tries to that auto restart, that I mentioned in the first post. Nothing it is silent.

I do appreciate your time and advice.

Thanks
tom

Make sure the motherboard isn't making any shorts against the case. Check that all the stand-offs on the case are in the correct positions.

Repost:

You will need a large, empty table for a temporary work-space.

Take the MOBO out of the case; place it on a non-conductive surface (the box it came in is ideal - do not use the foam sheet [slightly conductive] or the bag [fully conductive] which are for static dissipation). While you have it out, flip it over and verify that your Fan/HS retaining pins are all fully seated.

Plug in:
your keyboard;
one stick of RAM in slot 0;
the video card in the first PCIe slot, counting from the top (end with the rear panel connectors);
the monitor into the video card (don't forget to turn the monitor on), in the top (away from the MOBO) connector if it has two;
a speaker/piezo into the 'speaker' header ot the front panel connector bank (polarity doesn't matter);
if you can (otherwise instructions follow...) the power switch from the case (and, once again - polarity doesn't matter);
ALL power (turn the PSU rear switch OFF first) connectors required by your setup:
the 2x4 at the top,
the 24 or 20+4 (depending on your PSU) at the side,
the 6x or 8x on your video card.

Now, take a deep breath, and sit down for a minute. When calm, turn the PSU switch on, and depress the power switch (or, if you couldn't manage to connect it, short the "PWR_SW header pins in the front panel connector bank, for a second or two with a small flat-bladed screwdriver)...

One of three things will happen:

Nothing - in this case, turn the PSU switch back off, and switch the RAM for a different stick; flip the switch back on, and repeat the startup procedure (switch or pins); if still nothing, RMA your MOBO - still possible that the CPU is toasted, but, due to the apparent cause, much less likely...

Beeps - in this case, note the beep pattern/count; diagnostic info is, I believe, on page 106 of your manual, or post back...

Video - HURRAY! You/we can get into the BIOS and figure out the problem...

An aside:
Do you have access to another comp? (well, obviously, as you're posting, duh) I mention it because the next step (assuming video) will require a download, and burning an ISO file to a bootable CD - you might want to start making arrangements in advance...