Help please -- is my Motherboard DOA??

ECS L4VXA2
P-4 socket 478 / 533fsb / 512K
512MB PC2700 DDR


Thanks so very much for reading. I have read
up on the ECS L4VXA2 and I know it causes a lot of
grief.

I'm going to list below my "known"
items. I do really appreciate the input.

Symptom: With everything hooked up, trying to turn
the machine 'ON' results in zilch, nada, no fans,
no action, nothing.

(1) I do have both the 20-pin ATX1 and 4-pin ATX2
connectors plugged in.
(2) To eliminate the PSU as a problem, I have tested
the PSU on a power supply tester and it passed for
all six voltage rails.
(3) The memory is a PC2700 512MB stick which I used
previously, and in fact before putting into this ECS,
I ran it on several passes on MemTest86 to ensure
there were no errors.
(4) Just a side comment, I *believe* that even if
the memory module were not friendly, the motherboard
would still be able to power up and would beep on
that part of the POST involving memory module detection.
(5) The front power LED, when plugged into the panel
connector, lights up -- showing juice is running
through the length of the motherboard.
(6) I changed out power controller switch just
in case the switch on the case was bad. Still nada.
(7) I reset the CMOS and even changed the +3V battery.

If you can think of anything else, which would or
might result in total silence/nothing even though I
know the motherboard has a throughput of voltage,
I'd be grateful to learn more from your experience.
Thanks again! vois2(at)yahoo(dot)com

It looks like you covered your bases well, vois. Chances are your motherboard and//or processor are defective, causing a non-start. I would doublecheck teh PSU in a known-good box or placing a known good PSU in the bad machine, but otherwise it looks like time to RMA that motherboard.

I agree with Dngrsone, and I just wanted to say this is one of the best help requests I've seen. Someone who actually tried a variety of solutions on their own, and listed what they did! Well done!

Thanks to you both. Some hours after posting here I discovered that the motherboard was shorting out by touching an extra, unused stand-off post. It was that simple! Everything is running beautifully right now ... in fact, it's going a little too well, knock on silicon. I have no doubt I will be back here for help again and obviously I can count on attentive assistance here. I'm working with an $18 motherboard here on my first-ever build -- it has a lot of "funk" to it according to the hundreds of posts I have read by others while doing research before taking screwdriver to the case. It has VIA chipsets so I'm sure I'll run into many "learning opportunities" ahead. Thanks again very much!

Great, good job spotting that short... something I should have thought of

Thanks for coming back and telling us what fixed it. DOn't be a stranger.