Question about Motherboards

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System will not start

When switched on, all fans work but system does not boot. No beeps, all motherboard phase LEDs light up. Nothing shows on monitor

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  • pallu1 Oct 07, 2008

    hi i am too experiencing the same problem with my mobo intel D865GBF so far nothing has worked for me, finally i gave to technician he said now nothing can be done bcoz main chip on the mobo is destroyed he said.........now is there anything can be done with this.? pls help.

  • tony_0614 May 13, 2009

    i have same problem. i have EP43-UD3L gigabyte motherboard. all fans turn on everything looks ok but nothing shows up on monitor. i did notice phase 4 has the red light. what does that mean?

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  • 117 Answers

Hai

check the cmos battery and ram first

then clean the ram slots and ram leads.

refix the prossor and fan

Posted on Sep 10, 2008

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1 Answer

I need info about what the cpu phase leds on aN msi 990fxagd65 mean


They indicate the number of different power phases that the CPU is currently using. In order to save power the motherboard is able to reduce the voltage to (and performance of) the CPU. In 2 phase mode (2 LEDs) it basically switches between high performance, and low performance. 4 LEDs means that there are two additional intervals in between the high and low power settings. 6 LEDs indicate six total phases, etc.
I believe that there is a greater possibility of system instability as you increase the number of phases that the motherboard switches through.

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If you have another computer that will hook up to the internet, download a copy of any live Linux CD (UBUNTU) and see if the computer will boot with that (you download a image file that burns to a boot able cd). If it will boot with a live CD, then you have a Hard drive / operating system problem. If it will not boot from that, you have a mother board problem. Start removing things from the motherboard, unplug and remove everything then plug hook up things one at a time.

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Shorting the two leads will work but don't keep the two wires together. They are not ment to stay connected. Consider replacing your cases ATX power switch. Take a look at the link provided for a new switch;
http://www.cables4computer.com/Cases_and_Enclosures/Mid-Tower_PC-Cases_ATX_Push_Button_Power_Switch.html

The green LED on the motherboard means the board is in "Stand by mode". This green LED uses 5V DC to light the LED. After replacing your PS back into your system it may function just fine.

Good luck.
Mike




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Your motherboard has died .
No beep code explains it all .
LED lights and even fans spins only tells me that your getting power to the motherboard , but No beep code is crucial .
Every motherboard will beep once when your first turn on and beep once again before the Opertional System boots up .
Sorry again for your loss ...

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Its the DG31PR bios!
Put a non 45nm CPU on it, update the bios to the latest one , put back your 45nm processor and all should work just fine....this board is awesome.
Cheers!

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