Question about Intel D915GAV Motherboard

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System will not boot with no video. green led on and power switch turns psu on and off but nothing else. Have changed CPU Memory and PSU with no success. Also cpu does not even get warm. what is the problem

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  • martyn981 Oct 07, 2009

    Thanks for the advice I should have said I had also taken the Cmos battery out and I made no differance

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Try Resetting the CMOS.

Posted on Oct 07, 2009

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1 Answer

Why is the green led blinking on my M3N72-D motherboard


The flickering green LED on the motherboard is illuminated by the standby power supply, a small completely independent, always on, 5 volt power supply labeled 5VSB usually, output is on the violet wire.

Here's some more detailed instructions about how to check a PSU.

Try to borrow a known good PSU of around 550 - 600 watts. That will power just about any system with a single GPU. If you cannot do that, use a DMM to measure the voltages. Measure between the colored wires and either chassis ground or the black wires. Yellow wires should be 12 volts. Red wires: +5 volts, orange wires: +3.3 volts, blue wire : -12 volts, violet wire: 5 volts always on. Tolerances are +/- 5% except for the -12 volts which is +/- 10%.

The gray wire is really important. It should go from 0 to +5 volts when you turn the PSU on with the case switch. CPU needs this signal to boot.

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1 Answer

No debug LED show on my flaming blade gti


If your PSU give wrong voltage it produce same problem with 2 solution:
1-test your PSU
put a wire between green and black and voltage must be:
yellow 12V, red/purple/gray 5V, orange 3.3V.
If your PSU give under voltage (more than -10%):Buy a new one and test your motherboard(mb) with it (in this case there aren't a lot of chance that your mb and/or your CPU are dead)
If your PSU give good voltage:(-10% / +5%):There are a lot of chance that is you mb or CPU
If your PSU give over voltage:Buy a new one and test your motherboard with it (in this case there are a lot of chance that your mb or/and your CPU are dead)

Nov 19, 2012 | Foxconn Computers & Internet

1 Answer

First of all, I have a Gateway Model FX7026 desktop computer. My daughter was using it when suddenly the monitor screen becomes black. She tried to turn the computer on again but nothings happen. I open...


check if the cpu fan its working fine, maybe is damaged o dirty, you clean up with an air compress can

if still doesnt works you can try to replace the fan and see if it works

Mar 31, 2011 | Gateway FX7026 PC Desktop

1 Answer

My 3210 fails to start up the repair shop says it the motherboard replaced it and the cpu and the psu and it still doesnt start up any ideas


if you have change already the motherboard, cpu and psu here is what you need to do to check your pc by yourself and may be figure out what the cause of the problem.

1. connect the connector on your psu the motherboard. connect psu connector for hard drive, cdrom drive exhaust fan.
2. turn on the pc. look inside, if you see the led on the motherboard turn green then there's a power coming out from the psu.
3. hear the hard drive if its working, you can feel it vibrate.
4. check the little blower in the video card, if its spinning then there is supply in it.

when you turn on your pc the logo on the screen on the monitor will display. should you not see it, check if the monitor is plug in the ac outlet or the extension of your computer. if you see it then monitor is good. If this display followed by a dark screen with no signal display, then it means it is receiving no signal from your video card. go check the vga cable if its properly fix to the monitor and the video card. you can also detach the video card from the motherboard and reseat it properly. this sometime is the fix for no display.

If after booting after the logo, nothing else but dark screen, then is suggest you loosen the harddrive and reseat the connector properly, restart the system again. you can also check if the voltage from the power supply is dropping when there is a load in it. using a multitester test the 4pin connector. readings from the red wireshould be +5vdc and the yellow +12vdc. If its dropping then system will hang. check if there is shorted in your cpu, most of the time it is the blower or exhaust fan.

post back your findings so i can still help you out.
goodluck

he power cable on your psu and the plug to the ac outlet. turn

Feb 08, 2011 | E-Machines eMachines Desktop PC

1 Answer

Pc not starting from pressing power on. Green LED for SB_PWR is on and when power switch pressed, fan & cool fan flicker momentarily but nothing happens. They do not spin. No LED light appears on front...


> PC had been suddenly powering off several times intermittently for a few days leading up to this state. Does this mean the PSU or Motherboard is at fault?

Yes, either CPU or PSU or motherboard are the likeliest culprits.

It's easier to try a different PSU than to try a different CPU or motherboard.

Nov 18, 2010 | ASUS K8N-E Motherboard

1 Answer

Power LED is On but system doesnot start ?


hello, I have a solution for u i think it may help for u.
your problem is:

When u press the start button... the power LED comes on but there is no POST beep or BIOS screen or boot up. The SMPS fan and Processor fans also dont come on at all. there is a small LED next to the SMPS plug on the motherboard that does light up when the system is connected to a power source.
Part of the system configuration is the kind of PSU you have in your system.
SOLUTION IS
So, what kind of PSU?

Try to borrow a known good PSU. Or better yet, see if you can test your PSU in another working system. If you cannot do that, try to borrow a DMM to measure the voltages. Yellow wires should be 12 volts. Red wires: +5 volts, orange wires: +3.3 volts, blue wire : -12 volts, violet wire: 5 volts always on. The gray wire is really important. It should go from 0 to +5 volts when you turn the PSU on with the case switch. CPU needs this signal to boot.

You can turn on the PSU by completely disconnecting the PSU and using a paperclip or jumper wire to short the green wire to one of the neighboring black wires.

This checks the PSU under no load conditions, so it is not completely reliable. But if it can not pass this, it is dead.

Jul 01, 2010 | ASUS P4P800 SE (890552603657) Motherboard

2 Answers

I have a emachine PC. PowerSupply blew up. changed it still down


try to remove the memory and put it back again make sure put it fit and correctly

May 28, 2009 | Intel D845EPI (INTELKD845EPILPAK10)...

1 Answer

DG31PR Won't Boot


you ight have a BAD CPU, try checking it out on another pc or friends pc.

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1 Answer

Motherboard shuts down before booting !


You should clarify this a bit more, but please make sure all of your fans are plugged in and the no jumpers are set to over-clock the processor.Also, double check that everything is fundamentally compatible.

Dec 16, 2008 | Computers & Internet

1 Answer

A7V8X NOTHING HAPPENING,


When a power supply goes out the way yours did, it's going to fry the MB 99% of the time. So you're going to need a new MB. It's possible that you CPU is ok, but that could also go too. I would replace the MB first, then the CPU if that doesn't work.

Nov 07, 2007 | ASUS A7V8X Motherboard

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