That makes things tricky.. Perhaps Jam knows something about that psu that we dont !!! I think a search on the net or a visit to teh site maight be in order... It could be worth a try, are you able to get your hands on another psu and try it ?? One more question for you,.. Are all the cables connected in the right spots ?? etc cpu 4 pin cable, graphics card cable if it has its own connector etc ?? IF IT AINT BROKE, DONT FIX IT A8N-SLI Deluxe AMD X64 3500+ Wnchst Corsair 2x512 DDR400 Dual Channel GV-NX6600128D PCIX Graphics Card Ggbyte GT Pro CPU Cooler Zalman VF700-CU VGA Cool

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"I cant get to bios cuz it wont start up, at all. When i power on it turns off almost immediately..." Try to reset the BIOS, maybe by doing so it will turn of Q FAN Control...i'm not usre though what is the default.. It's nice to be important but it's more important to be nice...

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How do you reset the BIOS without the pc being powered on?

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Also yes I am relatively sure things are connected in the right spots. I tested my PSU and it works so thats not the problem. My main bet is the cpu fan because it never spins even a tiny bit like the other fans do. ANy1 know a way to test a cpu fan?

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Sounds like you either didnt plug your CPU fan in right or most likely the fan isnt working. I have never seen a computer on which the CPU fan doesnt start immediatly on start up. I suggest you find another fan and try it out.

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"How do you reset the BIOS without the pc being powered on?" Remove battery with mains unpluged for aboat 5 minutes. (The batery is located on the mobo and it's the shape of a coin) "ANy1 know a way to test a cpu fan?" Connect it directly to 12V and see if it's spinning. It's nice to be important but it's more important to be nice...

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Connect it to a 12 V?? (im a newbie)

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As followup, my cpu fan connects to a little 4 pin jumper so i dont see how i can connect it to the big 12V.

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Sound like a real pain in theback side I know... Some serious work is needed.. Remove the mother board and the power supply form the case, use the anti static bag and the foam that came with the board and place the board on it. Connect only the power supply and video card to the board, the monitor and nothin else, the wire from the power button of the case should be long enough to reach the pins on the board. Make sure they are connected to the right pins. If you get boot than you had contact between the boar and the case some place, if still no go, see if the cpu fan connector can reach any of the other 4 pin fan connectors if you have them... if not see if the cable is long enough to reach one of the other fan connectors and connect only the pins for the power,earth and rpm,the 4th wire is only the speed controll and is not necessary, the mother board manual will show you which pins are which, if still no boot remove the heatsink and fan. remove the cpu from the socket and check the pins in the cpu socket, make sure no thermal paste has leaked in there,and that there are no bent pins, make sure the surface contacts on the cpu pins are clean. If all ok replace the cpu, the fan and heat sink, with paste not to much of it though, and make sure the cpu surface is clean, and the surface of the heat sink is also clean before adding new paste. Ensure the locking pins of the heatsink click into place when you push down on them. reseat your ram just in case, but make sure the power is always disconnected when you do this work. If you stil get no boot It may be that eather the board of the cpu is a dud...than you might want to take it to your local pc shop and have them both tested. Hope that helps IF IT AINT BROKE, DONT FIX IT A8N-SLI Deluxe AMD X64 3500+ Wnchst Corsair 2x512 DDR400 Dual Channel GV-NX6600128D PCIX Graphics Card Ggbyte GT Pro CPU Cooler Zalman VF700-CU VGA Cool

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I'm having the same problem with my new p5wd2 premium. Asus told me the same thing they told you "get a better thermal compound". It's disheartening to learn that this hasn't worked for you. Although my fan does spin at startup and I can almost get to the BIOS. I'll let you know when I find a fix. Please do the same if you find one first.

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Just added the arctic silver 5 and the box runs great. Still a little hot, but it runs.

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Arctic silver takes abour 2 to 3 days or so before it reaches its max thermal cinductivity rate. So it will run a tad warm, but dont forget that the new p4s run very hot any way, if you can keep it bellow 45C you are doing very well indeed. IF IT AINT BROKE, DONT FIX IT A8N-SLI Deluxe AMD X64 3500+ Wnchst Corsair 2x512 DDR400 Dual Channel GV-NX6600128D PCIX Graphics Card Ggbyte GT Pro CPU Cooler Zalman VF700-CU VGA Cool

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I would give my right arm to get this thing running under fifty. In fact, I only saw anything below 60 for about 5 minutes. I think the stock Intel heatsink is just not enough. The p5wd2 is a hot board apparently, and the Pentium D is a hot chip even at 2.8Ghz, the combination is an inferno. I've ordered the Thermalright xp-90 heatsink which seems to work for people, so hopefully it will work for me. But even getting it to boot at all is progress.

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I had a computer (not new) that started doing this same thing... My PSU would pass the power on test, but it would not hold a load

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WEll i got a new PSU and now im having a similar problem, this time it stays on for around 7 seconds adn THEN shuts down.

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I would say a return to the place of purchase is in order about now... I understand these things run hot etc but you should at least be able to boot the thing and get the bios up.. I presume you did try what I suggested above ??? There hasto be something else wrong other that heat I think. I would contact asus by email and see what they say, but I seem to have read a number of problems with that board now, but I dont think its the bios doing it, there has only ever been one other bios release for this board since the forst release, which ususaly is a good sign. But if you havent doen what I suggested above its worth trying... IF IT AINT BROKE, DONT FIX IT A8N-SLI Deluxe AMD X64 3500+ Wnchst Corsair 2x512 DDR400 Dual Channel GV-NX6600128D PCIX Graphics Card Ggbyte GT Pro CPU Cooler Zalman VF700-CU VGA Cool

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