Power supply switch - computer won't turn on.

[cegras]

Okay, I know this might not supposed to be here but I'm pretty desperate for help.

I switched out my power supply to a ProXStream 1Kw (OCZ upgraded me for no reason after multiple complaints of fan noise)

I mistakingly plugged in the PSU first (the unit was always on because there is no rocker switch on the back) and started to plug in all my mobo connections, etc.

Time to turn on, the computer won't turn on. The standby LED's and the DRAM led is on, but when I hit the power button the leds will flash off, then back on and a small, dull 'click' is heard somewhere (probably from the ProXStream)

Could I have killed my mobo by doing this? I really don't think I did, as I did this by mistake once with a GameXStream (I plugged in the power cord to ground it but the rocker switch was in the on position and all the fans did a small jump when I did so).

Really need / appreciate any help.

Thanks.

Troubleshooting done so far: reconnected everything with PSU OFF, hit button to clear caps, did a 15 min CMOS reset, jumped the PSU with HDD's as load and it DID turn on.

The only other thing I might know is wrong is that the OCZ psu has two HARDWIRED versions of the CPU connector: an 8 pin and a 4 pin. Could it be that NF4-D is complaining about no CPU power? I have the four pin plugged in but I'm not sure .. grasping at the straws here.

When the PSU is fully plugged in and a power on attempt is made, it also makes a high pitched whine.

My computer is pretty much critical to my studies, so I'm trying to fix this asap.

[jonnyGURU]

Just sounds like a defective PSU.

[cegras]

jG: Thanks for being my light in ze dark here.

The funny thing is, it will turn on with the jump trick and some HDD's as load and fans.

Bad thing: Won't do the same thing on a mobo. And when I try, it emits high pitched noises and tic noises, like some switch is being thrown or something.

Time for RMA #4 from OCZ?

[jonnyGURU]

Right. But a power supply can still supply power on some rails and still be defective.

Seems cut and dry to me: working computer, switch PSU out, computer not working. I mean, you did put the other unit back in and the PC still work, right?

[cegras]

Well .. no.

My PxS was a RMA - so it was an exchange.

My life, is a box of knives.

[jonnyGURU]

Ah... ok. Was this EVER a working build?

If so, take EVERYTHING off the motherboard: cards, including graphics card, RAM, IDE and SATA cables... EVERYTHING except the CPU.

Now try it. You should get beeps. If you do, put the RAM back in. The beeps should change. Now add the graphics card and hook up the monitor. Leave the drives unplugged.

If you don't get beeps or this was not originally a working build, pull the motherboard, put it on something non-conductive and try again.

If you still get nothing, take the PSU, jump it, don't bother with hooking up the HDD, and test the wire leads with a DMM.

[cegras]

My box was, in fact, chugging away happily this morning when I shook it down to extract my old GxS.

I've tested the molex with a DMM while jumped - 12.2, and 7 and 5 volts coming from each possible combination on a molex.

Gonna try unplugging various things.

As for the system, it doesn't even power up. All that happens is:

a) Push button
b) The standby and DRAM orange led's will blink off
c) the LED's will come back on, followed with a dull click noise from the PxS

[cegras]

So, with what I said in the previous post in mind: unplugged everything except for CPU, but the computer refuses to even do the initial boot up.

LED's (standby and DRAM) blink off, blink on, clicking noise from PSU.

Ugh.

[jonnyGURU]

Yeah, well the clicking noise could be caused by a short at the motherboard... or it's just a bad PSU.

Without a known good PSU, it's a hard one to troubleshoot.

[cegras]

Unfortunately, yeah. But the funny thing, it was just working this morning. And I'm pretty sure I didn't drop metal shavings into the case in between, I even went over the whole case with some puffy air.

The clicking noise is coming from the PSU. That I'm sure of.

[cegras]

http://www.diy-street.com/forum/showthread.php?t=17916&pp=15

Extremely interesting. jG: Could this be the problem?

[STEvil]

read here: http://www.xtremesystems.org/forums/showthread.php?t=65481

I had a Fortron 530w that did similar things when attached to an nF7-S.

[cegras]

read here: http://www.xtremesystems.org/forums/showthread.php?t=65481

I had a Fortron 530w that did similar things when attached to an nF7-S.

I've pretty muched trolled the internet for past few hours - did see the post, too many things to try + I'm trying to save that as a last resort.

I'm NOT looking to use high voltages, and all jumpers are set in a position to use 5V and no the 5VSB, so I'm not sure how much that will help me.

However, a search on OCZ techsupport forums shows that everyone who has paired a PxS with an older DFI s939 board has had no boot issues.

RMA, here I come.

Zanks a lot for the support in the meantime, gives me something to do rather than bite my nails.

[STEvil]

With the PSU off the power LED for your ram stays off? Pretty simple to be 100% sure there ;)

Might be a bad cap on the mobo too. I'm sure the ATX specs since the P4 connector came about calls for a cap between the aux power connectors and the ATX connector so near where you plug in the 8/4-pin might be a place to look carefully.

[cegras]

With psu plugged in, standy led and dram led are on. Press button, both go off for a moment, then back on, PSU makes a small click.

With psu not plugged in, all led's are off (obviously).

No rocker switch on back of panel, plug in / out control whether it's on or off.

[darkorb]

How could u forgoet that u plugged the PSU in and then plugged the parts in?

Sounds like a faulty PSU, but looks like what u did might have caused it.

[jonnyGURU]

Sounds like a faulty PSU, but looks like what u did might have caused it.

No.

If there was a short or something that would have been bad for the PSU, the PSU's protection would have kicked in to protect it. If protection didn't kick in, the PSU was bunk to begin with. Q. E. D.

[cegras]

Nope, I'm right, and so is jonny.

I'm on my 'puter right now, with a tiny truepower 470 antec.

And guess what? It's running just fine.

Dang it >>

[[cTx] InfectedSin]

dont you love how RMA'S work.. its like a big network of junk being exchanged for more junk..

[Postal Dude]

Hey mate. The DFI NF4-D is a really picky mobo when it comes to PSU's. And i mean REALLY picky. Do you have all the connectors plugged in to the mobo? With my old SLI-D i had exactly the same issue when all the connectors were plugged in. Try removing some of the auxillery connectors, the extra molex or the extra floppy drive connector. Mine wouldnt boot with the extra floppy, wouldnt even turn on. Unplug it and it worked fine. Try doing some of that before RMAing.

[cegras]

There's only so many times you can recheck connections. I stopped after the first recheck.

I'm running on a GxS700W off RMA, and I'm going to run to bed now. Simply put, my ears are bleeding. Further details here:

http://jonnyguru.com/forums/showthread.php?t=3914

[Postal Dude]

What i was saying was. Sometime with that board, it prefers that some connections are not made. And it varies from board to board. But if you;ve got it powered up, then fair play. Took me forever to figure out the combination of connections to get my SLI-D workin

[cegras]

Sorry I didn't read your post correctly : (

I should've fiddled around with it. But even if it did work, I would've been uneasy - DFI says you MUST plug in all the connectors, and oc'ing without an aux connector in would make me quite nervous. In any case, at least this psu atm works right now.

[Postal Dude]

With my SLI-D it was only the floppy connector it didnt like. Had my opteron 146 upto 3Ghz on a big typhoon on the board without that connector. With it is wouldnt even post. But if youve got one working, all guns blazing, then fair play to you. Good luck with it