New motherboard, new problem

[CRS6785]

Soo...I posted on here not too long ago about my computer problem. I built a new computer and it would turn on, but it wouldn't post, and nothing would show up on the screen (Not a black screen, but it just says the standard "No signal" or whatever, then goes off) , then about 20 seconds after being turned on it would shut off. So I tried everything possible and narrowed it down to the motherboard or processor but didn't have spare parts to test, so I took it to a computer shop. The guy tested it and said it was a bad motherboard. I RMA'ed the motherboard back to Newegg and got my replacement today.

So here I am, I put in the replacement, hook everything up, cross my fingers and hit the switch. Guess what....now it will start up and stay on...but it still doesn't POST and nothing shows up on the screen like last time.

As of right now, I have the motherboard on a table on an anti-static bag and I'm not sure what to try. That guy I took my last motherboard to said that my CPU, Video Card and RAM all tested fine on another machine. I really can't see it being a Power Supply issue because this one has worked fine for me on my other system when I had a 6800 Ultra in it. Btw, my main specs are...

- Intel D925XCV Motherboard
- Pentium 4 3.4GHz
- Two 512MB Sticks of PC5400 DDR2 RAM
- GeForce 6800 GT
- Antec "True" 550W Power Supply

The only possible conflicts I can think of is the RAM being too highspeed, but the BIOS should just clock that speed down to be compatible. Also, the mobo has a 2x12 power connector on it, and my power supply only has the 2x10 power connector...but I do have an adapter on it so it fights fine in the 2x12 slot. One last thing I noticed was that the LGA slot on my motherboard looked odd. I was comparing it to this one here http://image2.sina.com.cn/IT/c/2004-...0119091746.jpg
and noticed a difference. Mine is missing 3 of those little squares that are in the middle of the socket. I'm not too sure on that, but shouldn't they be there like on the picture or can different manufacturers change that

Thanks for reading my long post. I'm pulling my hair out over this problem, its so frustrating not being able to get this computer working Any help is greatly appreciated.

[mazdarx7-64]

Ummm..... don't put your mobo ON an anti-static bag, put it on some wood or something like that. Static builds up on the outside of an anti-static bag, so that is bad. Also try to get it to post with only the nessary hardware attached to the mobo.

[TechKnickle]

Yeah I hate when this crap happens, surprisingly, it's common and there is no sure-fire soultion for it because you are recieving no output.

Your first goal should be to get the MoBo to post. Be sure you have the PC Speaker plugged in correctly in order to hear this beep.

Try what Mazda said, take the motherboard out of the case and put it on a non-conductive surface. Plug in only the video card, ram and cpu and try shorting the pins together to turn it on and see if anything happens then.

If you want to try something easier first, check all around the motherboard and make sure no capacitors are bluging or leaking. Next, remove any and all cables, your goal is to get this sucker to beep. Try removing the RAM all togeter and see if it beeps, change the slot that it is in.

Reset your CMOS configuration with a provided jumper.

Use a multimeter to test the Power Good signal on the power supply, it should read a consistant voltage and should not flutuate at all or else the computer wont boot.

Just soe things to try.

[CRS6785]

Ok, just did that. All I have connected is the video card, and a stick of ram. Still no luck, does the same thing.

[CRS6785]

Ok, I've tried no RAM, no beeps there, no video card, still no beeps. I've reset the BIOS using the jumpers, still no luck. Right now I took the battery for the CMOS out and I'm just waiting 10 mins to put it back in to see if that does any good. I would need to find a multimeter to test my power supply, but I'm really doubting thats the problem because theres hardly anything plugged in on the computer and its the same problem. Also, it was working perfect on my last system I had it in.

Btw, I shouldn't have to set anything up so to speak on my board to hear the POST beeps, they should all come out of the built in speaker on the board.

[CRS6785]

Wow. I got it to boot. At the moment I want to meet who ever wrote the manual for my motherboard and get a running start as I kick them in the jewels >< The manual said that if you have a 2x12 power connector that there was no need for the other connectors that the board has. So, out of curiousity I plugged in the connector that the manual told me I didn't need...and this time it booted all the way, no errors. I'm VERY relieved at the moment. Now to get it back in and all set up. Thanks for your quick replies you two, very appreciated!

[TechKnickle]

Ok, if there is a built-in speaker on the mobo then yes you dont need to hook up the other speaker.

Power supply... couldn't hurt to test. Maybe the other mobo would boot with a lower power-good signal, or maybe it didn't have to be consistant. Besides, you don't have much left to try... Only the CPU and the power supply for possible culprits. You could reseat the CPU, but I would aim high for the power supply. Do you have an extra one lying around that you could use to test it with? I wouldn't rule it out until it has been tested.

EDIT: Darn, seems I am a bit too late, nice work though and good luck.

[Big_Daddy]

I'm having the same problem with my Asus P4V8X but I don't think I have a 2X12 power connector