[FIXED]DFI Lanparty UT NF4 SLI-DR Expert won't post.

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Did you clear the CMOS before installing the new cpu?

This worked for me a very long time ago...

The proper Clear CMOS recovery. Not to be confused with a Normal CMOS Clear.

You can not use a USB keyboard for this procedure. You must use a PS2 keyboard.

You will need your manual to find the jumpers that must be changed.

If you skip or miss any step you must start again since the results will not be valid.
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Remove power from the rig by pulling the plug or switching the PSU off.

Move the PC Speaker jumper to the ON position.

Remove the Battery.

Move the CMOS jumper to CLEAR.

Press the Start Button on the case or motherboard to drain the capacitors.

You may leave the board in this condition for as long as it takes to clear the CMOS. If a short 30 second clear or a 15 minute clear doesn't work, try an 8 hour clear.

Plug in a PS2 Keyboard.

Put one stick of RAM in the slot marked DIMM2.

Move the CMOS jumper to Normal.

Replace the Battery.

Press and hold the Insert Key on the Keyboard.

Apply power to the rig by plugging the power in or using the switch on the PSU.

Press the Start Button to power the rig up.

When you hear the BEEP, release the Insert Key and press the Delete Key on the Keyboard.

Once you enter the BIOS set the DATE and TIME then Load Optimized Defaults.

Save and Exit.

Enter the BIOS again and set it up the way you want for your particular rig.

NEVER load any saved CMOS settings from CMOS Reloaded once you have a new BIOS installed.

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You forgot the part about standing on your head

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Anything else I could try? I'm a bit afraid I might have killed the mobo because I wouldn't believe that both CPU's are bad, specially because the older one WAS working perfectly before.

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Hey man sorry to hear about that, I have a similar Secondary system Opteron 165, DFI LanParty SLI DR and the Same PSU (is actually running my Core I7 Build for now)

First thing I would suggest, try running 1 memory slot, and mixing up the dimm that you place it in as well.

Was the old CPU being run at a high FSB or higher Voltage? Was any of the MOBO settings you had with the old CPU not reset to default settings before attempting the new CPU install?

Also, have you removed the motherboard and PSU and tried booting up out of the case? Put the motherboar don the motherboard box, nothing that can conduct electricity and generally the Boxes are fine to use for Testing.

Make sure all power connectors are plugged in properly again and make sure no pins are bent or possibly missing (maybe lodged into the Socket?)

Also I highly suggest Posting all this Here, at the OCN s939 Appreciation Club
These guys all knwo every litle detail about that socket and many have exact experience with that motherboard.

I know my Mobo has odd power plugs. Just of course make sure that every open Power plug of any form is connected properly, the 20+4 pin, the other 4 pin above CPU, the 4 Pin Under CPU with the Extra (smaller) 4 pin connecter as well. And then try booting with memory Modules, single, dif dims, play around till it works hopefully.

and if it doesnt work after all this, I would have to say that you somehow zapped the mobo =( or the PSU is no longer providing enough Current to the Machine. (volt meter can check if your Wall socket, and PSU are giving proper power)

Good Luck! Though I will say, it is pretty painfull to see that Uber Mobo with only a Single Core Processor, bu tnone the less, No 939 build deserve to die.

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The history of this mobo is quite interesting. The previous user didn't know what he had in his hands, and when I bought it off him a couple of years ago I was a total n00b. I just bought this Opty because I wasn't sure at all that my Socket939 Lanparty would like a Dual Core.

Many thanks for your help. I appreciate it alot. Oh, and btw. sorry if my english is a bit strange and I ask about some abbreviations. I'm from Spain and from time to time I don't understand expressions (such as DOA or RMA).

Getting back to your message I'll answer directly underneath to make it easier.

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I second that.....even if you have to let it sit for 8 hrs while CMOS clears. I know it's a pain but it's worth a try.

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OK. I won't ask why it can take so long to clear but just a question while it sits.

I read about pressing the onboard start button to drain the capacitators. Should I press it several times, keep it pressed down a couple of seconds or just once will do the job?

Thanks to everybody for your help.

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The idea is to drain residual current that may be stored in the caps to ensure a successful CMOS reset. As for the power button once should do.

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I third that, I currently run the Expert and it's very finicky. It did take over 4 hours to get it to post properly. I am almost certain the Mobo isn't dead and it's not the PSU. Just be patient with it.