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Solve : New system won't start?

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I just put together a new system, but it won't start.

I'm using an Asus A8N-SLI Premium motherboard and a Powermax ATX power supply of 450 W.

I have the 24-pin, the square 4-pin, and the 4-pin rail of the powersupply is connected to the mobo.  The cpu, heatsink + fan, RAM, video CARD, and IDE drives are all connected.  Power is supplied to the drives.

When the the power supply is on, the onboard power LED turns on, but pressing the power botton of the case does nothing.  The cpu fan, power supply fan, and case fan doesn't go; nothing happens.  The power switch is connected to the correct 2-pin on the mobo and I've tried both the possible configuration of this connection and still nothing.

I've rechecked the connections many times and they appear to be correct.  What could be wrong?  The system doesn't even start.  Any help would be appreciated.You need to CHECK the following:

  • Is all hardware firmly seated?
  • Are all cables firmly seated?
  • Is the hardware undamaged?
  • Does the PC power on without drives and minimal hardware?
  • Is the PSU set to the correct voltage? (115v or 230v)


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The power switch is connected to the correct 2-pin on the mobo and I've tried both the possible configuration of this connection and still nothing.
 


You need to be absolutely certain. Are you connecting the case wires according to the manual or by feeling? Sometimes, the abbreviations seem a bit odd.Thanks for the help, but none of those were the problem.  I feel stupid for not noticing the problem sooner.  The problem was that I placed the motherboard into the case without spacers, so the motherboard was grounded.  That's why it wouldn't start.

I spent like over 5 hours rechecking all the connections.  Boy, did I wasted a lot of time.  Now I'm just having problem connecting to the internet with the new system.  It doesn't seem to detect router that's connected.  I'm going to call my ISP to see if they can help.

Thanks anyways.The little golden things where the screws go into? Are those called spacers?

I've never applied a mainboard without using those. Did not think that would be possible.Yeah, it's those golden things.  I call them spacers, but there may be other names for it.  The cheap case I bought didn't have those in, so I had to look for some spares.  I found seven and the mobo has nine holes for those, so it was good enough for me.

I got the internet connection working now for windows.  I just had to install some drivers.  Installing those drivers for linux is going to be trickier.

There's is still one problem that's bothering me:  I use an optical MOUSE and even when I shut down the system, the laser light is still on.  I looked through the BIOS settings and I've tried enabling and disabling the Plug and Play settings, but the same problem arises.  I believe it has something to do with the BIOS setup, but I can't figure out what triggers it.

Any ideas?Doubt that can be resolved - as long as there is STANDBY power on the  computer, the mouse will remain powered as well. This may be due to ACPI which allows you to, if configured, boot the PC by simply clicking the mouse button (twice, I believe).


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