I just got a nforce4 a939 notherboard today, the 24 pin power connection is in, the 12vatx connector is in. When I push the power button, the power led on the mb comes on, but nothing else and if I hold the power button in afterwards, the power led goes off again as with an atx system. My power supply is atx 2.2, so that shouldn't be the problem. Any suggestions?
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Re: nforce4 a939 power led comes on, but nothing else
I am on an nforce asus an32-sli premium, with a 939 in it right now you need a 450 -500V power supply. they are resourse hogs, also are you running anything into the cable or ribbon that the main drive is on, if so try running just the drive and nothing else plugged into the MB as a master 0. Don't forget to connect the sata if you are running sata. let me know if it boots in that config, also clear the cmos and pop the battery prior to booting.
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I am assuming you are trying to power up an installed motherboard, based on the category selection. You say that you have power connected. That means that you have connected the 20 (24) pin main connector and the 4 or 8 pin CPU power connector to the motherboard. Have you connected the front panels controls to the motherboard header? There are connections for the power switch, power LED, HDD LED, reset switch (optional). They must be connected in order for the motherboard to start. THe HDD and Power LED connections are polarity-based, so if you hook them upo backwards, their respective LED will not light. The HDD LED plug is usually red and white with the red being on the positive (+) terminal. The Power LED plug is usually green and white with the green wire going to the positive terminal. The power switch and reset switch wires can be connected either way as they are not polarized.
Hmmm.... mainly you have: -20 or 24-pins connector, that is unique and goes directly to motherboard (powers motherboard and its components) -4 or 8-pins connector that powers CPU -the rest would be connectors for ROM (CD/DVD/BlueRay) and HDD devices (there are: molex and sata power conectors)
You only need the Ethernet if you want to connect to a network. If you can not get the onboard ethernet to work, you can always use a USB adapter. By the way, have you downloaded the drivers from nVidia?
I think any of the dual cores on that page will be a OK upgrade.
So if you upgrade your ram to 2GB and a Dual core 4800+ that should be good. but in the long run it might be smarter to upgrade to a new motherboard and even faster cpu, with DDR 2 memory, the memory ddr2 is really cheap these days.
Some people don't like links as a solution, but the subject is more complicated than just a few lines of text, By chance do you have a killer graphics card with 1 gig of memory (which in turn overwrites the 4 gigs of system memory when mapped. 4-1=3) Give this a read: http://support.microsoft.com/kb/929605
Hi there check board for bios reset normally jumpers that have to be shorted,you must also disconnect power plugs from sockets normally 24 pin and 4 pin for about minute,reset bios on board for few seconds put bios back as it was reconnect power plugs,reboot to get into bios on screen normally hit DEL button or what your screen tells you ,enter cmocs screen change date etc and check all devices are detected then save when your finished and should boot on its own