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I have just built a computer with the following components:

1. Asus M2N SLI Deluxe Motherboard
2. Maxtor SATAII 160GB Hard Drive
3. Asus 7600 GT PCI-Express Graphics card
4. Hiper 580 watt PSU.

When i switch the computer on the cpu, 4 system and power supply fans rotate. A green onboard LED lights up on the motherboard, to indicate that the system is on in sleep or in soft-off mode. No beep codes are heard, or post messages on the monitor, which remains blank.
I have researched this scenario on the Asus website and the fix they suggest is to unplug the power cord press the power on switch for 10 sec release and replug, then switch the computer on again. That did not work. If anyone can offer any other fixes/suggestions then please do. Thanks.

Will.

2007-02-20 10:49:00 · 7 answers · asked by buoyt12 2 in Computers & Internet Hardware Other - Hardware

7 answers

If the current sensor detects too low a load, the power supply usually does not start.
See the link below for an explanation.

I have this same problem with my system:
Asus A8V-VM
AMD 64 3700+
Gigabyte 7600GT PCI-e
Maxtor 160Gb PATA
Enermax 485 PSU

My case didn't have a reset button, so I retrieved one from an old case. It was taking 4 or 5 resets to start up. When it does start, Windows gives no indication of a problem - it never started. The lights come on & the drives spin but that's it.
I reduced the problem when I fitted a second hard drive - a reset is now required to start only about every second day - and then it usually works on first reset.

Unbelieveable? Hook up an older power supply - try it!

Here's a paste from the link below:
Higher efficiency PSUs generally tend to need higher minimum power on the 12V line in order to simply run. Typically, we're talking about 1A or greater. Older, less efficient PSUs have much lower minumum current needs, under 0.5A and often ZERO.

In some recent motherboards, there are various time delays implemented in order to ensure that the PSU (and motherboard) is not subject to a huge current surge when everything turns on all at once. Many Asus boards have been identified as doing this, al though you won't get Asus to talk about it — I tried — they will say it's proprietary information they don't want to share with competitors. They are not the only board makers doing this.

see the link for more...

2007-02-20 12:47:06 · answer #1 · answered by Anonymous · 3 0

recheck and make sure you have all the switch and led wires pluged into the correct pins. also make sure the square plug on the power supply is pluged into the motherboard. this supplies power to the cpu on its own. check and make sure the cpu is seated correctly into the socket with no bent pins and that you do have the right one for it. make sure you have the speaker pluged into the correct pins. this could be why you hear no beeps. unplug all extra non-onboard cards that you don't need to boot the system. you could have a bad card. if it has onboard video, use it. it really sounds like either a power supply failure or a hardware problem. those are the things i always check. if you have an ethernet card in a pci slot, a bad one with do exactly what is going on...just my thoughts on your situation without actually seeing it in person.

2007-02-20 10:58:47 · answer #2 · answered by gas_indycar 5 · 0 0

Pull the powersupply cable off the mobo, then remove the hardware cables off as well, check to see if the memory is in correctly reinstall all the cables slowly and thoroughly to make sure you haven't missed anything.

If that dont work check the mobo's manual for jumper setting configurations to make sure theyre placed on right pins.

2007-02-20 10:53:39 · answer #3 · answered by sadeyzluv 4 · 0 0

Hi. Is the jumper for "SATA Enable" set right? You can change the BIOS to boot from CD first and put your OS CD in the drive, then reboot. Good luck!

Edit: This review pointed out some boot issues. http://www.xbitlabs.com/articles/mainboards/display/asus-nforce570_4.html

2007-02-20 10:53:14 · answer #4 · answered by Cirric 7 · 0 0

If you have any usb devices attached, try unplugging them and trying the boot procedure again.

It may be worth wile to unplug all devices except mouse and keyboard.

Then, you will have to try component wise. Take out the memory, NIC's video etc one by one to see if you can isolate a faulty piece of HW.

Hope this helps

2007-02-20 10:54:00 · answer #5 · answered by albatross_singh 2 · 0 0

Maybe there is a CD or Floppy disk in the drive. If so remove it.

2007-02-20 10:53:58 · answer #6 · answered by Anonymous · 0 0

In your BIOS, which device is it set to boot from?

You may need to set it to SCSI to boot the SATA drive.
(It does on my A7N8X Deluxe m/b, anyway)

Do you need to load the driver for SATA support?

2007-02-20 21:02:08 · answer #7 · answered by 86er 3 · 0 0

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